VALVE SEAT INSERT PROGRESSIVE LISTING BY I.D. - QualCast

VALVE SEAT INSERT PROGRESSIVE LISTING BY I.D.
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
20-1000-3 0.500
1.0045 7/16 45
20-1062-6 0.563
1.0670 7/16 45
20-1125-11 0.625
1.1295 7/16 45
20-1187-12 0.688
1.1920 7/16 45
20-1000-1 0.750
1.0045 3/16 45
20-1125-10 0.750
1.1295 1/4 45
20-1250-13 0.750
1.2545 7/16 45
20-1062-4 0.781
1.0670 1/4 45
20-1062-3 0.781
1.0670 3/16 45
22-1102-1 0.787
1.1024 0.315 45
22-1102-1N 0.787
1.1024 0.315 45
25-1102-1 0.787
1.1024 0.315 45
25-1062-50 0.790
1.0695 0.254 45
21-1062-50 0.790
1.0695 0.254 45
20-1000-2 0.813
1.0045 3/16 45
20-1062-5 0.813
1.0670 3/16 45
20-1125-2 0.813
1.1295 3/16 45
20-1312-16 0.813
1.3170 7/16 45
21-1125-52 0.825 .925 1.1320 0.285 45
22-1142-2 0.827
1.1417 0.335 45
22-1142-2N 0.827
1.1417 0.335 45
25-1142-2 0.827
1.1417 0.335 45
21-1125-55 0.830
1.1320 0.240 45
21-1125-51 0.854
1.1320 0.237 45
25-1181-1 0.866
1.1811 0.335 45
22-1181-1 0.866
1.1811 0.335 45
22-1181-1N 0.866
1.1811 8.5mm 45
21-1062-51 0.870
1.0695 0.195 45
20-1062-2 0.875
1.0670 3/16 45
20-1062-1 0.875
1.0670 5/32 45
20-1125-4 0.875
1.1295 1/4 45
25-1125-5 0.875
1.1295 3/16 45
20-1125-5 0.875
1.1295 3/16 45
20-1125-7 0.875
1.1295 5/16 45
20-1125-3 0.875
1.1295 5/32 45
20-1125-1 0.875
1.1295 7/32 45
20-1187-2 0.875
1.1920 1/4 45
20-1250-4 0.875
1.2545 3/16 45
20-1375-27 0.875
1.3795 7/16 45
21-1187-54 0.880
1.1945 0.280 45
21-1125-53 0.890 .976 1.1320 0.237 45
21-1125-54 0.900
1.1320 0.325 45
21-1187-51 0.905
1.1945 0.257 45
21-1250-56 0.905 1.005 1.2570 0.230 45
25-1250-56 0.905 1.005 1.2570 0.230 45
22-1221-2N 0.906
1.2205 0.335 45
22-1221-2 0.906
1.2205 0.335 45
25-1221-2 0.906
1.2205 0.335 45
22-1161-1 0.910 .975 1.1610 0.222 30
22-1161-1+010 0.910 .975 1.1710 .222 30
22-1161-1+020 0.910 .975 1.1810 .222 30
22-1161-1+040 0.910 .975 1.201 .222 30
22-1161-1+053 0.910 .975 1.214 .222 30
22-1161-1+062 0.910 .975 1.223 .222 30
21-1250-52 0.910 1.052 1.2570 0.285 45
21-1250-63 0.930
1.2570 0.325 45
21-1187-52 0.934 .995 1.1945 0.257 45
25-1187-52 0.934 .995 1.1945 0.257 45
21-1187-53 0.935
1.1945 0.235 45
20-1125-9 0.938
1.1295 1/4 45
20-1125-6 0.938
1.1295 3/16 45
20-1125-8 0.938
1.1295 7/32 45
20-1187-5 0.938
1.1920 1/4 45
20-1187-4 0.938
1.1920 3/16 45
20-1187-3 0.938
1.1920 9/64 45
20-1375-10 0.938
1.3795 5/16 45
20-1437-32 0.938
1.4420 7/16 45
25-1260-1 0.945
1.2598 0.335 45
22-1260-1 0.945
1.2598 0.335 45
22-1260-1N 0.945
1.2598 0.335 45
21-1250-58 0.955
1.2570 0.255 45
21-1250-50 0.965T 1.060 1.2570 1/4 45
21-1312-63 0.965T 1.075 1.3195 0.235 45
25-1250-64 0.970
1.2570 0.270 45
21-1250-64 0.970
1.2570 0.270 45
21-1312-68 0.975
1.3195 0.280 45
22-1262-1 0.975T 1.045 1.2620 1/4 30
22-1262-1+005 0.975T 1.045 1.267 1/4 30
22-1262-1+010 0.975T 1.045 1.272 1/4 30
22-1262-1+030 0.975T 1.045 1.292 1/4 30
22-1262-1+040 0.975T 1.045 1.302 1/4 30
22-1262-1+053 0.975T 1.045 1.315 1/4 30
22-1262-1+062 0.975T 1.045 1.324 1/4 30
21-1250-61 0.976
1.2570 0.180 45
21-1312-53 0.980T 1.106 1.3195 0.293 45
25-1250-59 0.982
1.2570 0.329 45
21-1250-59 0.982
1.2570 0.329 45
21-1250-57 0.982T 1.102 1.2570 0.212 45
25-1299-1 0.984
1.2992 0.335 45
22-1299-1N 0.984
1.2992 0.335 45
22-1299-1 0.984
1.2992 0.335 45
20-1187-7 1.000
1.1920 0.219 45
20-1187-6 1.000
1.1920 1/4 45
20-1187-1 1.000
1.1920 3/16 45
20-1250-1 1.000
1.2545 0.216 45
20-1250-3 1.000
1.2545 1/4 45
20-1250-2 1.000
1.2545 3/16 45
20-1250-0 1.000
1.2545 3/8 45
20-1250-12 1.000
1.2545 5/16 45
25-1250-1 1.000
1.2545 7/32 45
21-1250-62 1.000
1.2570 0.305 45
20-1312-4 1.000
1.3170 1/4 45
20-1312-2 1.000
1.3170 3/16 45
20-1312-5 1.000
1.3170 5/16 45
20-1312-3 1.000
1.3170 7/32 45
20-1375-8 1.000
1.3795 3/16 45
20-1375-26 1.000
1.3795 9/32 45
21-1375-64 1.000
1.3820 0.280 45
25-1375-64 1.000
1.3820 0.280 45
20-1437-17 1.000
1.4420 1/4 45
25-Prefix Denotes Powdered Metal Material
Page 1
-N Suffix Denotes Nickel Based Alloy, S-Stellite

VALVE SEAT INSERT PROGRESSIVE LISTING BY I.D.
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
20-1437-15 1.000
1.4420 3/16 45
20-1437-18 1.000
1.4420 5/16 45
20-1500-19 1.000
1.5045 3/8 45
20-1500-33 1.000
1.5045 7/16 45
20-1562-21 1.000
1.5670 21/64 45
21-1375-52 1.000T 1.109 1.3820 0.410 45
21-1250-55 1.005T 1.100 1.2570 0.255 45
21-1250-54 1.010T 1.056 1.2570 0.257 45
21-1312-66 1.020T 1.127 1.3195 0.258 45
21-1375-54 1.022T 1.085 1.3820 0.230 45
21-1250-60 1.023T 1.110 1.2570 0.273 45
21-1250-53 1.024
1.2570 0.257 45
22-1339-2 1.024
1.3386 0.335 45
22-1339-2N 1.024
1.3386 0.335 45
25-1339-2 1.024
1.3386 0.335 45
22-1378-1N 1.024
1.3780 0.354 45
22-1378-1 1.024
1.3780 0.354 45
25-1378-1 1.024
1.3780 0.354 45
21-1250-65 1.030
1.2570 0.215 45
21-1312-67 1.042
1.3195 0.238 45
25-1312-67 1.042
1.3195 0.238 45
21-1312-59 1.044
1.3195 0.273 45
25-1312-59 1.044
1.3195 0.273 45
25-1312-64 1.045
1.3195 0.316 45
21-1312-64 1.045
1.3195 0.316 45
21-1375-59 1.050T 1.190 1.3820 0.275 45
21-1375-63 1.057T 1.110 1.3820 0.240 45
21-1312-57 1.060
1.3195 0.280 45
25-1312-57 1.060
1.3195 0.280 45
21-1312-65 1.060T 1.117 1.3195 0.230 45
21-1312-52 1.060T 1.087 1.3195 0.240 45
21-1312-61 1.060T 1.102 1.3195 0.275 45
21-1375-51 1.060T 1.150 1.3820 0.280 45
20-1312-6 1.063
1.3170 0.216 45
25-1312-10 1.063
1.3170 0.310 45
20-1312-10 1.063
1.3170 0.310 45
20-1312-9 1.063
1.3170 1/4 45
20-1312-1 1.063
1.3170 3/16 45
20-1312-0 1.063
1.3170 3/8 45
25-1312-6 1.063
1.3170 7/32 45
20-1375-7 1.063
1.3795 1/4 45
20-1375-3 1.063
1.3795 3/16 45
20-1375-3N 1.063
1.3795 3/16 45
20-1375-18 1.063
1.3795 5/16 45
20-1375-6 1.063
1.3795 7/32 45
25-1417-1 1.063
1.4173 0.354 45
22-1417-1 1.063
1.4173 0.354 45
22-1417-1N 1.063
1.4173 0.354 45
20-1437-9 1.063
1.4420 3/16 45
20-1437-22 1.063
1.4420 5/16 45
20-1500-23 1.063
1.5045 5/16 45
20-1562-24 1.063
1.5670 1/4 45
20-1562-22 1.063
1.5670 3/16 45
20-1562-26 1.063
1.5670 3/8 45
20-1562-25 1.063
1.5670 5/16 45
20-1562-44 1.063
1.5670 7/16 45
20-1562-23 1.063
1.5670 7/32 45
20-1875-35 1.063
1.8800 1/4 45
20-1875-37 1.063
1.8800 3/8 45
20-1875-36 1.063
1.8800 5/16 45
20-1875-20 1.063
1.8800 7/32 45
20-1937-1 1.063
1.9430 1/4 45
25-1937-1 1.063
1.9430 1/4 45
25-1937-23 1.063
1.9430 3/16 45
20-1937-23 1.063
1.9430 3/16 45
20-1937-31 1.063
1.9430 3/8 45
20-1937-30 1.063
1.9430 5/16 45
20-1937-32 1.063
1.9430 7/16 45
20-1937-17 1.063
1.9430 7/32 45
25-1937-17 1.063
1.9430 7/32 45
20-1937-34 1.063 1-3/4 1.9430 7/32 45
20-1937-15 1.063
1.9430 9/32 45
20-1937-1+010 1.063
1.953 1/4 45
22-2003-3N 1.063
2.0030 0.234 30
22-2003-1N 1.063
2.0030 9/32 30
22-2003-1 1.063
2.0030 9/32 30
22-2004-2 1.063 1.748 2.0035 7/16 30
20-2000-16 1.063
2.0055 1/4 45
20-2000-4 1.063
2.0055 3/8 45
20-2000-29 1.063
2.0055 5/16 45
22-2006-2 1.063 1.748 2.0055 7/16 30
20-2000-35 1.063
2.0055 7/16 45
20-2000-15 1.063
2.0055 7/32 45
25-2000-15 1.063
2.0055 7/32 45
20-2000-2 1.063
2.0055 9/32 45
22-2006-3N 1.063
2.0060 0.234 30
22-2006-1 1.063
2.0060 9/32 30
22-2006-1N 1.063
2.0060 9/32 30
22-2006-1+005 1.063
2.0110 9/32 30
22-2006-2+010 1.063 1.748 2.016 7/16 30
22-2006-1+010 1.063
2.0160 9/32 30
22-2006-2+020 1.063 1.748 2.026 7/16 30
22-2006-1+020 1.063
2.026 9/32 30
22-2006-2+030 1.063 1.748 2.0355 7/16 30
22-2006-1+030 1.063
2.0360 9/32 30
22-2006-2+040 1.063 1.748 2.0455 7/16 30
22-2006-1+040 1.063
2.0460 9/32 30
20-2062-4 1.063
2.0680 1/4 45
20-2062-23 1.063
2.0680 3/8 45
20-2062-5 1.063
2.0680 5/16 45
20-2062-24 1.063
2.0680 7/16 45
20-2062-22 1.063
2.0680 7/32 45
20-2062-8 1.063
2.0680 9/32 45
20-2125-16 1.063
2.1305 1/4 45
20-2125-28 1.063
2.1305 3/8 45
20-2125-15 1.063
2.1305 5/16 30
20-2125-29 1.063
2.1305 7/16 45
20-2125-9 1.063
2.1305 9/32 45
20-2187-5 1.063
2.1930 1/4 30
20-2187-31 1.063
2.1930 7/16 45
25-Prefix Denotes Powdered Metal Material
Page 2
-N Suffix Denotes Nickel Based Alloy, S-Stellite

VALVE SEAT INSERT PROGRESSIVE LISTING BY I.D.
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
20-2187-13 1.063
2.1930 9/32 45
20-2250-4 1.063
2.2555 1/4 45
20-2250-25 1.063
2.2555 3/8 45
20-2250-24 1.063
2.2555 5/16 45
20-2250-26 1.063
2.2555 7/16 45
20-2250-23 1.063
2.2555 7/32 45
22-2503-2 1.063 2.160 2.5030 1/2 45
22-2506-2 1.063 2.160 2.5060 1/2 45
22-2506-2+010 1.063 2.160 2.5160 1/2 45
22-2506-2+020 1.063 2.160 2.5260 1/2 45
22-2506-2+030 1.063 2.160 2.5360 1/2 45
21-1312-62 1.065T 1.120 1.3195 0.285 45
21-1312-60 1.070T 1.175 1.3195 0.257 45
21-1312-54 1.070T 1.133 1.3195 0.330 45
21-1312-56 1.086
1.3195 0.305 45
25-1312-56 1.086
1.3195 0.305 45
21-1312-50 1.086T 1.153 1.3195 0.305 45
22-1348-1N 1.087
1.3480 0.200 45
21-1437-53 1.090T 1.101 1.4445 0.354 45
20-1312-11 1.094
1.3170 7/32 45
20-1375-25 1.094
1.3795 0.203 45
21-1437-58 1.095T 1.262 1.4445 0.237 45
21-1375-62 1.100T 1.210 1.3820 0.300 45
25-1375-62 1.100T 1.210 1.3820 0.300 45
21-1437-64 1.100T 1.255 1.4445 0.227 45
21-1437-57 1.100T 1.26 1.4445 0.293 45
25-1500-57 1.100T 1.213 1.5070 0.316 45
21-1500-57 1.100T 1.213 1.5070 0.316 45
25-1375-56 1.102
1.3820 0.260 45
21-1375-56 1.102
1.3820 0.260 45
25-1457-2 1.102
1.4567 0.354 45
22-1457-2 1.102
1.4567 0.354 45
22-1457-2N 1.102
1.4567 0.354 45
21-1437-65 1.105
1.4445 0.322 45
25-1437-65 1.105
1.4445 0.322 45
21-1375-60 1.107T 1.217 1.3820 0.237 45
21-1375-50 1.109T 1.218 1.3820 0.255 45
21-1437-56 1.110T 1.215 1.4445 0.315 45
21-1375-55 1.120
1.3820 0.325 45
25-1375-55 1.120
1.3820 0.325 45
21-1437-66 1.120
1.4445 0.300 45
20-1312-7 1.125
1.3170 3/16 45
20-1312-13 1.125
1.3170 7/32 45
20-1375-1 1.125
1.3795 0.216 45
20-1375-2 1.125
1.3795 1/4 45
20-1375-5 1.125
1.3795 17/64 45
20-1375-5N 1.125
1.3795 17/64 45
20-1375-4 1.125
1.3795 3/16 45
25-1375-4 1.125
1.3795 3/16 45
20-1375-4N 1.125
1.3795 3/16 45
20-1375-0 1.125
1.3795 3/8 45
25-1375-1 1.125
1.3795 7/32 45
20-1375-1N 1.125
1.3795 7/32 45
20-1437-6 1.125
1.4420 0.310 45
25-1437-8 1.125
1.4420 1/4 45
20-1437-8 1.125
1.4420 1/4 45
20-1437-10 1.125
1.4420 3/16 45
25-1437-6 1.125
1.4420 5/16 45
20-1437-4 1.125
1.4420 7/32 45
25-1437-4 1.125
1.4420 7/32 45
21-1437-60 1.125
1.4445 0.257 45
25-1500-5 1.125
1.5045 3/16 45
20-1500-5 1.125
1.5045 3/16 45
25-1500-9 1.125
1.5045 5/16 45
20-1500-9 1.125
1.5045 5/16 45
20-1500-8 1.125
1.5045 7/32 45
20-1562-15 1.125
1.5670 1/4 45
20-1562-27 1.125
1.5670 3/16 45
20-1562-29 1.125
1.5670 3/8 45
20-1562-28 1.125
1.5670 5/16 45
20-1562-14 1.125
1.5670 7/32 45
20-1625-24 1.125
1.6300 11/32 45
20-1625-41 1.125
1.6300 7/16 45
21-1375-61 1.130T 1.272 1.3820 0.304 45
21-1437-51 1.130T 1.311 1.4420 0.250 45
21-1562-53 1.130T 1.267 1.5695 0.315 45
21-1437-68 1.135T 1.250 1.4445 0.316 45
25-1437-68 1.135T 1.250 1.4445 0.316 45
21-1437-69 1.140T 1.228 1.4445 0.237 45
21-1437-50 1.140T 1.241 1.4445 0.305 45
21-1500-65 1.140T 1.270 1.5070 0.325 45
21-1500-64 1.140T 1.362 1.5070 0.325 45
22-1442-1 1.141 1.200 1.4420 1/4 30
22-1442-1+040 1.141 1.200 1.482 1/4 30
22-1442-1+063 1.141 1.200 1.505 1/4 30
25-1496-1 1.142
1.4961 0.354 45
22-1496-1N 1.142
1.4961 0.354 45
22-1496-1 1.142
1.4961 0.354 45
21-1437-73 1.142T 1.265 1.4445 0.336 45
25-1437-73 1.142T 1.265 1.4445 0.336 45
21-1437-72 1.150T 1.243 1.4445 0.257 45
21-1437-52 1.150T 1.271 1.4445 0.410 45
22-1431-1 1.156
1.4305 0.160 30
21-1437-74 1.162
1.4445 0.230 45
25-1437-74 1.162
1.4445 0.230 45
21-1437-61 1.162
1.4445 0.310 45
21-1437-71 1.162T 1.210 1.4445 0.214 45
21-1375-65 1.165
1.3820 0.310 45
25-1375-65 1.165
1.3820 0.310 45
21-1562-77 1.170
1.5695 0.267 45
21-1437-75 1.175
1.4445 0.260 45
25-1437-75 1.175
1.4445 0.260 45
25-1500-77 1.175T 1.235 1.5070 0.236 45
21-1500-77 1.175T 1.235 1.5070 0.236 45
21-1500-68 1.179T 1.287 1.5070 0.293 45
25-1500-68 1.179T 1.287 1.5070 0.293 45
21-1500-75 1.180
1.5070 0.300 45
25-1500-75 1.180
1.5070 0.300 45
25-1562-72 1.180
1.5695 .316 45
21-1562-72 1.180
1.5695 0.316 45
25-Prefix Denotes Powdered Metal Material
Page 3
-N Suffix Denotes Nickel Based Alloy, S-Stellite

VALVE SEAT INSERT PROGRESSIVE LISTING BY I.D.
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
25-1437-67 1.180T 1.270 1.4445 0.255 45
21-1437-67 1.180T 1.270 1.4445 0.255 45
25-1437-59 1.180T 1.245 1.4445 0.305 45
21-1437-59 1.180T 1.245 1.4445 0.305 45
21-1500-74 1.180T 1.280 1.5070 0.214 45
25-1500-74 1.180T 1.280 1.5070 0.214 45
21-1500-54 1.180T 1.325 1.5070 0.307 45
25-1500-53 1.180T 1.241 1.5070 0.307 45
25-1500-54 1.180T 1.325 1.5070 0.307 45
21-1500-53 1.180T 1.241 1.5070 0.307 45
21-1562-70 1.180T 1.300 1.5695 0.305 45
21-1437-63 1.181 1.285 1.4445 0.280 45
22-1535-1 1.181
1.5354 0.354 45
22-1535-1N 1.181
1.5354 0.354 45
25-1535-1 1.181
1.5354 0.354 45
22-1575-3 1.181
1.5748 0.374 45
22-1575-3N 1.181
1.5748 0.374 45
25-1575-3 1.181
1.5748 0.374 45
25-1500-72 1.182T 1.260 1.5070 0.275 45
21-1500-72 1.182T 1.260 1.5070 0.275 45
20-1375-22 1.188
1.3795 7/32 45
20-1437-24 1.188
1.4420 0.1855 45
25-1437-24 1.188
1.4420 0.1855 45
25-1437-5 1.188
1.4420 1/4 45
20-1437-5 1.188
1.4420 1/4 45
20-1437-0 1.188
1.4420 3/8 45
20-1437-25 1.188
1.4420 5/16 45
20-1437-13 1.188
1.4420 5/32 45
20-1437-3N 1.188
1.4420 7/32 45
25-1437-3 1.188
1.4420 7/32 45
20-1437-3 1.188
1.4420 7/32 45
20-1500-6 1.188
1.5045 0.248 45
25-1500-6 1.188
1.5045 1/4 45
25-1500-2 1.188
1.5045 3/16 45
20-1500-26 1.188
1.5045 3/8 45
20-1500-10 1.188
1.5045 5/16 45
25-1500-10 1.188
1.5045 5/16 45
20-1500-2 1.188
1.5045 7/32 45
20-1562-0 1.188
1.5670 0.373 45
20-1562-31 1.188
1.5670 1/4 45
20-1562-30 1.188
1.5670 3/16 45
20-1562-11 1.188
1.5670 5/16 30
20-1562-34 1.188 1-1/4 1.5670 5/16 45
20-1562-13 1.188
1.5670 7/32 45
20-1562-42 1.188 1-3/8 1.5670 7/32 45
20-1625-25 1.188
1.6300 1/4 45
20-1625-8 1.188
1.6300 3/8 45
20-1625-19 1.188
1.6300 7/32 45
20-1687-42 1.188
1.6925 7/16 45
21-1562-52 1.190T 1.321 1.5670 0.315 45
21-1437-62 1.200
1.4445 0.297 45
25-1437-62 1.200
1.4445 0.297 45
25-1500-58 1.200T 1.220 1.5070 0.315 45
21-1500-58 1.200T 1.220 1.5070 0.315 45
21-1562-75 1.200T 1.253 1.5695 0.293 45
22-1441-1 1.203 1.245 1.4410 0.215 30
22-1441-1+010 1.203 1.245 1.4510 .215 30
22-1441-1+020 1.203 1.245 1.4610 .215 30
21-1500-70 1.203
1.5070 0.283 45
22-1681-1 1.203
1.6810 5/16 45
21-1500-50 1.203T 1.266 1.5070 0.280 45
25-1500-50 1.203T 1.266 1.5070 0.280 45
21-1500-59 1.210T 1.340 1.5070 0.325 45
21-1500-63 1.210T 1.248 1.5070 0.345 45
25-1500-63 1.210T 1.248 1.5070 0.345 45
21-1500-76 1.215T 1.340 1.5070 0.275 45
20-1437-14 1.219
1.4420 1/4 45
22-1442-2 1.219
1.4420 11/32 45
20-1437-2N 1.219
1.4420 7/32 45
25-1437-2 1.219
1.4420 7/32 45
20-1437-2 1.219
1.4420 7/32 45
22-1442-2+020 1.219
1.462 11/32 45
20-1500-11 1.219
1.5045 1/4 45
25-1500-11 1.219
1.5045 1/4 45
25-1500-4 1.219 1-11/32 1.5045 7/32 45
20-1500-4 1.219 1-11/32 1.5045 7/32 45
25-1562-69 1.219
1.5695 0.317 45
21-1562-69N 1.219
1.5695 0.317 45
21-1562-69 1.219
1.5695 0.317 45
25-1500-62 1.220 1.284 1.5070 0.310 45
25-1562-54 1.220 1.356 1.5695 0.344 45
21-1500-62 1.220T 1.284 1.5070 0.310 45
21-1500-61 1.220T 1.330 1.5070 0.315 45
21-1562-54 1.220T 1.356 1.5695 0.344 45
22-1614-1N 1.221
1.6142 0.374 45
22-1614-1 1.221
1.6142 0.374 45
25-1614-1 1.221
1.6142 0.374 45
25-1500-73 1.230
1.5070 0.278 45
21-1500-73 1.230
1.5070 0.278 45
21-1562-78 1.230
1.5695 0.278 45
21-1437-54 1.230T 1.299 1.4420 0.250 45
22-1460-2N 1.236
1.4605 0.236 45
25-1500-71 1.240
1.5070 0.317 45
21-1500-71 1.240
1.5070 0.317 45
21-1562-51 1.245T 1.268 1.5695 0.354 45
21-1562-57 1.246T 1.303 1.5695 0.230 45
20-1562-16N 1.250
1.2500 3/16 45
20-1437-28 1.250
1.4420 3/16 45
20-1437-30 1.250
1.4420 5/16 45
20-1437-1N 1.250
1.4420 7/32 45
20-1437-1 1.250
1.4420 7/32 45
25-1437-1 1.250
1.4420 7/32 45
20-1500-1 1.250
1.5045 0.216 45
20-1500-3 1.250
1.5045 1/4 45
25-1500-3 1.250
1.5045 1/4 45
22-1505-1 1.250
1.5045 11/32 45
25-1500-13 1.250
1.5045 3/16 45
20-1500-13 1.250
1.5045 3/16 45
20-1500-0 1.250
1.5045 3/8 45
20-1500-12 1.250
1.5045 5/16 45
25-Prefix Denotes Powdered Metal Material
Page 4
-N Suffix Denotes Nickel Based Alloy, S-Stellite

VALVE SEAT INSERT PROGRESSIVE LISTING BY I.D.
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
25-1500-1 1.250
1.5045 7/32 45
20-1500-1N 1.250
1.5045 7/32 45
20-1500-28 1.250
1.5045 9/32 45
25-1500-80 1.250
1.507 0.230 45
21-1500-80 1.250
1.5070 0.230 45
20-1500-3+003 1.250
1.5075 1/4 45
22-1505-1+010 1.250
1.5145 11/32 45
22-1516-1 1.250
1.5160 1/4 45
22-1505-1+020 1.250
1.5245 11/32 45
22-1505-1+030 1.250
1.5345 11/32 45
20-1562-6 1.250
1.5670 0.216 45
20-1562-17 1.250
1.5670 0.310 45
20-1562-7 1.250
1.5670 1/4 45
25-1562-7 1.250
1.5670 1/4 45
20-1562-32 1.250
1.5670 11/32 45
25-1562-16 1.250
1.5670 3/16 45
20-1562-16 1.250
1.5670 3/16 45
25-1562-17 1.250
1.5670 5/16 45
25-1562-6 1.250
1.5670 7/32 45
20-1562-6N 1.250
1.5670 7/32 45
20-1562-35 1.250
1.5676 3/8 45
20-1562-46N 1.250
1.5680 9/32 45
20-1562-6+010 1.250
1.577 7/32 45
20-1625-6N 1.250
1.6300 1/4 45
20-1625-6 1.250
1.6300 1/4 45
20-1625-28 1.250
1.6300 11/32 45
20-1625-27 1.250
1.6300 3/16 45
20-1625-29 1.250
1.6300 3/8 45
20-1625-7 1.250
1.6300 5/16 45
25-1625-7 1.250
1.6300 5/16 45
25-1625-9 1.250
1.6300 7/32 45
20-1625-9 1.250
1.6300 7/32 45
21-1625-60 1.250 1.408 1.6320 0.293 45
22-1690-1 1.250
1.6900 3/8 45
20-1687-19 1.250
1.6925 1/4 45
20-1687-21 1.250
1.6925 3/16 45
20-1687-23 1.250
1.6925 5/16 45
20-1687-22 1.250
1.6925 7/32 45
20-1750-10 1.250
1.7550 1/4 45
20-1750-18 1.250
1.7550 3/16 45
20-1750-20 1.250
1.7550 5/16 45
20-1750-43 1.250
1.7550 7/16 45
20-1750-19 1.250
1.7550 7/32 45
25-1500-69 1.255
1.5070 0.318 45
21-1500-69 1.255
1.5070 0.318 45
25-1562-67 1.255 1.372 1.5695 0.319 45
22-1536-2N 1.255T 1.405 1.5365 0.359 45
22-1536-2N+015 1.255T 1.405 1.5515 0.359 45
21-1562-67 1.255T 1.307 1.5695 0.319 45
21-1625-53 1.255T 1.437 1.6320 0.300 45
22-1654-3 1.260
1.6535 0.374 45
25-1654-3 1.260
1.6535 0.374 45
22-1654-3N 1.260
1.6535 0.374 45
21-1500-52 1.260T 1.408 1.5070 0.240 45
21-1562-73 1.260T 1.375 1.5695 0.233 45
21-1562-50 1.260T 1.412 1.5695 0.280 45
21-1625-52 1.260T 1.427 1.6320 0.315 45
21-1562-66 1.265T 1.294 1.5695 0.280 45
25-1562-66 1.265T 1.294 1.5695 0.280 45
22-1486-1 1.270
1.4860 0.290 30
21-1500-56 1.275T 1.318 1.5070 0.250 45
21-1562-71 1.275T 1.365 1.5695 0.258 45
21-1625-58 1.280T 1.361 1.6300 0.315 45
25-1625-58 1.280T 1.361 1.6300 0.315 45
20-1562-20 1.281
1.5670 7/32 45
25-1562-74 1.290T 1.325 1.5695 0.324 45
21-1562-74 1.290T 1.325 1.5695 0.324 45
22-1539-1 1.294T 1.390 1.5395 0.277 45
25-1500-79 1.295
1.5070 0.262 45
21-1500-79 1.295
1.5070 0.262 45
22-1539-2 1.297T 1.390 1.5395 0.276 45
25-1625-56 1.298T 1.382 1.6320 0.317 45
21-1625-56 1.298T 1.382 1.6320 0.317 45
22-1693-4 1.299
1.6929 0.374 45
22-1693-4N 1.299
1.6929 0.374 45
25-1693-4 1.299
1.6929 0.374 45
21-1562-76 1.300
1.5695 0.257 45
21-1562-68 1.300T 1.370 1.5695 0.256 45
21-1562-65 1.300T 1.433 1.5695 0.315 45
21-1687-52 1.300T 1.420 1.6945 0.360 45
21-1625-61 1.305T 1.450 1.6320 0.227 45
22-1593-1 1.306T 1.425 1.5930 0.224 30
22-1657-1 1.312T 1.500 1.6570 0.395 45
20-1500-30 1.313
1.5045 0.216 45
20-1500-29 1.313
1.5045 3/16 45
25-1500-29 1.313
1.5045 3/16 45
25-1500-30 1.313
1.5045 7/32 45
20-1562-36N 1.313
1.5670 0.186 45
20-1562-36 1.313
1.5670 0.186 45
20-1562-1 1.313
1.5670 0.216 45
20-1562-9 1.313 1-3/8 1.5670 0.216 45
20-1562-1N 1.313
1.5670 0.216 45
20-1562-9N 1.313 1-3/8 1.5670 0.216 45
25-1562-9 1.313 1-3/8 1.5670 0.216 45
20-1562-2 1.313 1-3/8 1.5670 0.248 45
25-1562-4 1.313
1.5670 1/4 45
25-1562-2 1.313 1-3/8 1.5670 1/4 45
20-1562-4 1.313
1.5670 1/4 45
20-1562-2N 1.313 1-3/8 1.5670 1/4 45
20-1562-38 1.313
1.5670 11/32 45
25-1562-36 1.313
1.5670 3/16 45
20-1562-39 1.313
1.5670 3/8 45
25-1562-39 1.313
1.5670 3/8 45
20-1562-18 1.313
1.5670 5/16 45
25-1562-18 1.313
1.5670 5/16 45
25-1562-1 1.313
1.5670 7/32 45
20-1562-8 1.313
1.5670 7132 30
25-1562-8 1.313
1.5670 7132 30
20-1562-37 1.313
1.5670 9/32 45
20-1562-1+005 1.313
1.572 7/32 45
25-Prefix Denotes Powdered Metal Material
Page 5
-N Suffix Denotes Nickel Based Alloy, S-Stellite

VALVE SEAT INSERT PROGRESSIVE LISTING BY I.D.
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
20-1562-1+010 1.313
1.577 7/32 45
20-1562-4+010 1.313
1.5770 1/4 45
20-1562-1+015 1.313
1.582 7/32 45
20-1562-1+020 1.313
1.587 7/32 45
20-1562-4+020 1.313
1.5870 1/4 45
20-1562-1+030 1.313
1.597 7/32 45
20-1562-4+030 1.313
1.5970 1/4 30
20-1625-3 1.313
1.6300 0.248 45
20-1625-3N 1.313
1.6300 0.248 45
20-1625-20 1.313
1.6300 0.395 45
25-1625-3 1.313
1.6300 1/4 45
25-1625-30 1.313
1.6300 3/16 45
20-1625-30 1.313
1.6300 3/16 45
20-1625-10 1.313
1.6300 5/16 45
25-1625-10 1.313
1.6300 5/16 45
25-1625-4 1.313
1.6300 7/32 45
20-1625-4 1.313
1.6300 7/32 45
20-1625-40 1.313 1-3/8 1.6300 7/32 45
20-1625-4N 1.313
1.6300 7/32 45
20-1625-18 1.313
1.6300 9/32 45
20-1625-3+010 1.313
1.6400 .248 45
20-1625-4N+020 1.313
1.650 7/32 45
25-1687-6 1.313
1.6925 1/4 45
20-1687-6 1.313
1.6925 1/4 45
20-1687-24 1.313
1.6925 3/16 45
20-1687-0 1.313
1.6925 3/8 45
25-1687-0 1.313
1.6925 3/8 45
20-1687-11 1.313
1.6925 5/16 45
25-1687-11 1.313
1.6925 5/16 45
20-1687-9N 1.313
1.6925 7/32 45
20-1687-9 1.313
1.6925 7/32 45
25-1687-9 1.313
1.6925 7/32 45
20-1750-6 1.313
1.7550 1/4 45
20-1750-22 1.313
1.7550 3/16 45
20-1750-24 1.313
1.7550 3/8 45
20-1750-17 1.313
1.7550 5/16 45
25-1750-17 1.313
1.7550 5/16 45
20-1750-25 1.313
1.7550 7/16 45
20-1750-23 1.313
1.7550 7/32 45
20-1812-25 1.313
1.8175 3/8 45
20-1812-24 1.313
1.8175 5/16 45
20-1812-26 1.313
1.8175 7/16 45
21-1625-62 1.320
1.6320 0.300 45
25-1625-62 1.320
1.6320 0.300 45
21-1750-62 1.323T 1.527 1.7570 0.276 45
25-1750-62 1.323T 1.527 1.7570 0.276 45
22-1624-1N 1.328
1.6245 3/8 45
22-1624-1N 1.328
1.6245 3/8 45
21-1625-54 1.329
1.6320 0.280 45
25-1625-54 1.329
1.6320 0.280 45
21-1625-55 1.333T 1.495 1.6320 0.237 45
25-1630-1 1.335
1.6300 0.312 45
22-1630-1 1.335
1.6300 0.312 45
22-1630-1N 1.335
1.6300 0.312 45
22-1630-1N+010 1.335
1.640 .312 45
22-1630-1+010 1.335
1.640 .312 45
22-1630-1N+020 1.335
1.650 .312 45
22-1630-1N+030 1.335
1.660 .312 45
21-1625-64 1.335T 1.387 1.6320 0.420 45
25-1687-57 1.335T 1.487 1.6945 0.275 45
21-1687-57 1.335T 1.487 1.6945 0.275 45
21-1687-53 1.338T 1.436 1.6945 0.309 45
22-1732-1N 1.339
1.7323 0.374 45
22-1732-1 1.339
1.7323 0.374 45
25-1732-1 1.339
1.7323 0.374 45
22-1600-1 1.340
1.6000 0.300 45
21-1687-55 1.340
1.6945 0.315 45
21-1625-50 1.340T 1.426 1.6320 0.307 45
22-1735-4 1.340T 1.550 1.7350 0.353 45
20-1562-3 1.344
1.5670 7/32 45
22-1628-2 1.344 1.380 1.6280 1/4 30
20-1625-5 1.344
1.6300 1/4 45
20-1625-31 1.344
1.6300 3/16 45
20-1625-32 1.344
1.6300 3/8 45
20-1625-11 1.344
1.6300 7/32 45
20-1625-11+006 1.344
1.6360 7/32 45
22-1628-2+010 1.344 1.380 1.638 1/4 30
22-1628-2+020 1.344 1.380 1.648 1/4 30
22-1628-2+030 1.344 1.380 1.658 1/4 30
20-1687-28 1.344
1.6925 1/4 45
20-1687-26 1.344
1.6925 3/16 45
25-1687-4 1.344
1.6925 5/16 45
20-1687-4 1.344
1.6925 5/16 45
20-1687-4N 1.344
1.6925 5/16 45
20-1687-27 1.344
1.6925 7/32 45
21-1625-63 1.345T 1.380 1.6320 0.290 45
21-1687-50 1.345T 1.522 1.6945 0.325 45
22-1695-1 1.345T
1.6950 0.242 45
22-1626-1N 1.348T 1.406 1.6260 0.365 45
22-1628-1N 1.348T 1.524 1.6285 0.365 45
22-1628-1N+010 1.348T 1.524 1.6385 .365 45
22-1628-1N+013 1.348T 1.524 1.641 .365 45
22-1628-1N+020 1.348T 1.524 1.648 .365 45
22-1628-1N+030 1.348T 1.524 1.6585 .365 45
22-1628-3 1.357T 1.414 1.6285 0.269 30
22-1628-3+010 1.357T 1.414 1.6385 .269 30
22-1628-3+020 1.357T 1.414 1.6485 .269 30
22-1628-3+030 1.357T 1.414 1.6585
30
22-1722-1 1.357T 1.574 1.7220 0.265 45
22-1772-2 1.358
1.7717 0.394 45
22-1772-2N 1.358
1.7717 0.394 45
25-1772-2 1.358
1.7717 0.394 45
21-1750-58 1.360T 1.540 1.7550 0.315 45
21-1750-59 1.360T 1.503 1.7570 0.315 45
25-1750-59 1.360T 1.503 1.7570 0.315 45
22-1654-1N 1.367
1.6544 0.312 45
22-1671-1N 1.367
1.6710 0.311 45
22-1669-1 1.372T 1.429 1.6690 0.272 37
22-1669-1+030 1.372T 1.429 1.699 .272 37
22-1669-1+050 1.372T 1.429 1.719 .272 37
25-Prefix Denotes Powdered Metal Material
Page 6
-N Suffix Denotes Nickel Based Alloy, S-Stellite

VALVE SEAT INSERT PROGRESSIVE LISTING BY I.D.
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
20-1562-5 1.375
1.5670 1/4 45
20-1562-40 1.375
1.5670 3/16 45
20-1562-41 1.375
1.5670 3/8 45
20-1562-19 1.375
1.5670 5/16 45
20-1562-12 1.375
1.5670 7/32 45
20-1625-1 1.375
1.6300 0.216 45
20-1625-2 1.375
1.6300 0.248 45
20-1625-2N 1.375
1.6300 1/4 45
25-1625-2 1.375
1.6300 1/4 45
20-1625-34 1.375
1.6300 11/32 45
20-1625-15 1.375
1.6300 17/64 45
20-1625-33 1.375
1.6300 3/16 45
20-1625-0 1.375
1.6300 3/8 45
20-1625-14 1.375
1.6300 5/16 45
20-1625-16 1.375
1.6300 5/32 45
20-1625-1N 1.375
1.6300 7/32 45
25-1625-1 1.375
1.6300 7132 45
20-1625-1+005 1.375
1.635 7/32 45
20-1625-1+010 1.375
1.640 45 45
22-1640-1 1.375
1.6400 1/4 45
20-1625-1+015 1.375
1.645 7/32 45
20-1625-1+020 1.375
1.650 7/32 45
20-1625-1+030 1.375
1.660 7/32 45
20-1687-18 1.375
1.6925 0.279 45
20-1687-12 1.375
1.6925 0.373 45
20-1687-7 1.375
1.6925 1/4 45
25-1687-7 1.375
1.6925 1/4 45
20-1687-30 1.375
1.6925 11/32 45
20-1687-20 1.375
1.6925 13/32 45
20-1687-29 1.375
1.6925 3/16 45
25-1687-10 1.375 1-7/16 1.6925 5/16 45
20-1687-8 1.375
1.6925 5/16 45
25-1687-8 1.375
1.6925 5/16 45
20-1687-10 1.375 1-7/16 1.6925 5/16 45
20-1687-10N 1.375 1-7/16 1.6925 5/16 45
20-1687-34 1.375 1-7/16 1.6925 7/32 45
25-1687-5 1.375
1.6925 7/32 45
20-1687-5 1.375
1.6925 7/32 45
20-1687-5N 1.375
1.6925 7/32 45
25-1687-18 1.375
1.6925 9/32 45
20-1687-7+005 1.375
1.6975 1/4 45
20-1750-8 1.375
1.7550 1/4 45
25-1750-8 1.375
1.7550 1/4 45
20-1750-8N 1.375
1.7550 1/4 45
20-1750-14 1.375
1.7550 23/64 45
20-1750-29 1.375
1.7550 3/16 45
20-1750-0 1.375
1.7550 3/8 45
20-1750-9 1.375
1.7550 5/16 45
25-1750-9 1.375
1.7550 5/16 45
20-1750-7 1.375
1.7550 7/32 45
20-1750-30 1.375 1-9/16 1.7550 7/32 45
25-1750-7 1.375
1.7550 7/32 45
20-1750-15 1.375
1.7550 9/32 45
20-1812-14 1.375
1.8175 1/4 45
20-1812-32 1.375
1.8175 3/16 45
20-1812-16 1.375
1.8175 3/8 45
20-1812-15 1.375
1.8175 5/16 45
20-1812-13 1.375
1.8175 7/32 45
20-1875-5 1.375
1.8800 1/4 45
20-1875-39 1.375
1.8800 7/16 45
21-1687-56 1.375T 1.475 1.6945 0.295 45
25-1687-56 1.375T 1.475 1.6945 0.295 45
21-1625-59 1.380
1.6320 0.257 45
21-1750-67 1.380T 1.538 1.7570 0.382 45
25-1687-51 1.390T 1.452 1.6945 0.305 45
21-1687-51 1.390T 1.452 1.6945 0.305 45
21-1750-53 1.390T 1.535 1.7570 0.250 45
21-1687-58 1.397T 1.469 1.6945 0.257 45
22-1811-1 1.398
1.8110 0.394 45
22-1811-1N 1.398
1.8110 0.394 45
25-1811-1 1.398
1.8110 0.394 45
22-1609-1 1.400
1.6090 1/4 45
22-1687-3N 1.400
1.6870 0.365 30
22-1620-1 1.404
1.6200 0.240 45
25-1812-54 1.405T 1.592 1.8195 0.315 45
21-1812-54 1.405T 1.592 1.8195 0.315 45
20-1625-39 1.406
1.6300 1/4 45
22-1687-1N 1.406 1.546 1.6870 0.365 45
20-1687-1N 1.406
1.6925 0.248 45
20-1687-1 1.406
1.6925 0.248 45
25-1687-1 1.406
1.6925 1/4 45
20-1687-40 1.406
1.6925 5/16 45
22-1880-1 1.406
1.8800 7/32 45
22-1687-4N 1.410
1.6875 0.365 20
25-1750-51 1.410T 1.600 1.7570 0.280 45
21-1750-51 1.410T 1.600 1.7570 0.280 45
21-1750-63 1.410T 1.540 1.7570 0.315 45
22-1638-1N 1.412
1.6380 0.218 45
21-1750-68 1.415
1.7570 0.316 45
25-1750-68 1.415
1.7570 0.316 45
21-1750-69 1.415T 1.535 1.7570 0.300 45
22-1711-1S 1.416T 1.525 1.7111 0.3780 45
22-1784-1N 1.417T
1.7845 0.292 45
22-1670-1 1.420
1.6700 0.302 30
21-1812-53 1.420T 1.620 1.8195 0.315 45
22-1692-1N 1.430
1.6925 0.248 30
22-1692-1N+005 1.430
1.6975 .248 30
22-1692-1N+015 1.430
1.7075 .248 30
22-1692-1N+030 1.430
1.7225 .248 30
21-1750-57 1.430T 1.615 1.7550 0.215 45
21-1812-57 1.436T 1.578 1.8195 0.295 45
25-1812-57 1.436T 1.578 1.8195 0.295 45
25-1850-2 1.437
1.8504 0.394 45
22-1850-2N 1.437
1.8504 0.394 45
22-1850-2 1.437
1.8504 0.394 45
21-1750-60 1.437T 1.555 1.7570 0.302 45
25-1750-60 1.437T 1.555 1.7570 0.302 45
21-1750-60+010 1.437T 1.555 1.7580 .302 45
22-1796-2 1.437T 1.475 1.7967 0.318 45
22-1796-1 1.437T 1.525 1.7967 0.387 45
25-Prefix Denotes Powdered Metal Material
Page 7
-N Suffix Denotes Nickel Based Alloy, S-Stellite

VALVE SEAT INSERT PROGRESSIVE LISTING BY I.D.
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
20-1625-36 1.438
1.6300 1/4 45
20-1625-35 1.438
1.6300 3/16 45
20-1625-38 1.438
1.6300 3/8 45
20-1625-37 1.438
1.6300 5/16 45
20-1625-17 1.438
1.6300 7/32 45
22-1687-2 1.438 1.546 1.6870 318 45
22-1691-1 1.438
1.6905 0.181 30
22-1691-2 1.438
1.6905 0.200 30
20-1687-2 1.438
1.6925 0.216 45
25-1687-3 1.438
1.6925 1/4 45
20-1687-3 1.438
1.6925 1/4 45
20-1687-3N 1.438
1.6925 1/4 45
25-1687-16 1.438
1.6925 3/16 45
20-1687-16 1.438
1.6925 3/16 45
20-1687-14 1.438
1.6925 3/8 45
20-1687-13 1.438
1.6925 5/16 45
25-1687-13 1.438
1.6925 5/16 45
20-1687-15 1.438
1.6925 5/32 45
25-1687-15 1.438
1.6925 5/32 45
20-1687-2N 1.438
1.6925 7/32 45
25-1687-2 1.438
1.6925 7/32 45
22-1693-1N 1.438 1.546 1.6930 0.365 45
22-1693-2 1.438 1.546 1.6930 3/8 45
22-1691-1+005 1.438
1.6955 .181 30
22-1691-2+005 1.438
1.6955 .200 30
22-1693-1N+005 1.438 1.546 1.698 .365 45
22-1691-1+010 1.438
1.7005 .181 30
22-1691-2+010 1.438
1.7005 .200 30
22-1693-1N+010 1.438 1.546 1.703 .365 45
22-1691-1+020 1.438
1.7105 .181 30
22-1691-2+020 1.438
1.7105 .200 30
22-1693-1N+020 1.438 1.546 1.713 .365 45
22-1691-1+030 1.438
1.7205 .181 30
22-1691-2+030 1.438
1.7205 .200 30
22-1693-1N+030 1.438 1.546 1.723 .365 45
22-1693-1N+040 1.438 1.546 1.733 .365 45
20-1750-4 1.438
1.7550 1/4 45
25-1750-4 1.438
1.7550 1/4 45
20-1750-4N 1.438
1.7550 1/4 45
20-1750-11 1.438
1.7550 3/16 45
20-1750-32 1.438
1.7550 3/8 45
20-1750-5 1.438
1.7550 5/16 45
25-1750-5 1.438
1.7550 5/16 45
20-1750-33 1.438
1.7550 7/16 45
20-1750-3 1.438
1.7550 7/32 45
20-1750-3N 1.438
1.7550 7/32 45
25-1750-3 1.438
1.7550 7/32 45
20-1750-3+010 1.438
1.765 7/32 45
20-1750-3+020 1.438
1.775 7/32 45
20-1812-7 1.438
1.8175 1/4 45
20-1812-0 1.438
1.8175 3/8 45
20-1812-11 1.438
1.8175 5/16 45
20-1812-22 1.438
1.8175 7/16 45
20-1812-17 1.438
1.8175 7/32 45
22-1828-1 1.438
1.8280 3/8 45
20-1875-12 1.438
1.8800 1/4 45
20-1875-30 1.438
1.8800 3/16 45
20-1875-33 1.438
1.8800 3/8 45
20-1875-32 1.438
1.8800 5/16 45
20-1875-34 1.438
1.8800 7/16 45
20-1875-31 1.438
1.8800 7/32 45
20-1937-39 1.438
1.9425 7/16 45
20-2000-8 1.438
2.0055 1/4 45
20-1750-12 1.438T 1.610 1.7550 0.203 45
25-1812-52 1.440T 1.490 1.8195 0.315 45
21-1812-52 1.440T 1.490 1.8195 0.315 45
22-1744-1N 1.445
1.7440 0.312 45
25-1750-61 1.445T 1.617 1.7570 0.310 45
21-1750-61 1.445T 1.617 1.7570 0.310 45
22-1678-1 1.446
1.6785 0.312 45
21-1687-54 1.450
1.6945 0.297 45
25-1687-54 1.450
1.6945 0.297 45
21-1750-64 1.454
1.7570 0.277 45
22-1933-2 1.454T 1.778 1.9330 0.241 30
22-1933-2+010 1.454T 1.778 1.9430 .241 30
22-1933-2+020 1.454T 1.778 1.9530 .241 30
22-1733-2N 1.455T 1.597 1.7330 0.365 45
21-1750-52 1.455T 1.595 1.7570 0.307 45
22-1693-8N 1.458
1.6935 0.234 45
22-1775-1 1.458T 1.680 1.7750 0.300 45
22-1775-1+015 1.458T 1.680 1.7900 .300 45
22-1775-1+030 1.458T 1.680 1.8050 .300 45
22-1725-2N 1.460
1.7255 0.2510 30
21-1750-66 1.460T 1.530 1.7570 0.275 45
25-1750-54 1.460T 1.582 1.7570 0.316 45
21-1750-54 1.460T 1.582 1.7570 0.316 45
21-1750-65 1.468
1.7570 0.276 45
25-1750-65 1.468
1.7570 0.276 45
20-1812-6 1.469
1.8175 1/4 45
20-1812-21N 1.469
1.8175 5/16 45
22-1781-1N 1.476
1.7810 0.311 45
22-1890-2N 1.476
1.8898 0.394 45
25-1890-2 1.476
1.8898 0.394 45
22-1890-2 1.476
1.8898 0.394 45
22-1782-1 1.490T 1.623 1.7825 0.340 30
22-1782-1+015 1.490T 1.623 1.7975 0.340 30
25-1812-50 1.490T 1.588 1.8195 0.307 45
21-1812-50 1.490T 1.588 1.8195 0.307 45
22-1853-1 1.498T 1.700 1.8530 0.273 30
20-1687-33 1.500
1.6925 1/4 45
20-1687-32 1.500
1.6925 3/16 45
20-1687-35 1.500
1.6925 3/8 45
20-1687-41 1.500
1.6925 5/16 45
20-1687-17 1.500
1.6925 7/32 45
20-1750-1 1.500
1.7550 1/4 45
25-1750-1 1.500
1.7550 1/4 45
20-1750-1N 1.500
1.7550 1/4 45
20-1750-34 1.500
1.7550 3/16 45
20-1750-36 1.500
1.7550 3/8 45
25-1750-13 1.500
1.7550 5/16 45
25-Prefix Denotes Powdered Metal Material
Page 8
-N Suffix Denotes Nickel Based Alloy, S-Stellite

VALVE SEAT INSERT PROGRESSIVE LISTING BY I.D.
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
20-1750-13 1.500
1.7550 5/16 45
20-1750-2N 1.500
1.7550 7/32 45
20-1750-2 1.500
1.7550 7/32 45
25-1750-2 1.500
1.7550 7/32 45
20-1750-2+010 1.500
1.765 7/32 45
20-1750-2+010 1.500
1.7650 7/32 45
20-1750-2N+020 1.500
1.775 7/32 45
20-1812-5N 1.500
1.8175 1/4 45
20-1812-5 1.500
1.8175 1/4 45
25-1812-5 1.500
1.8175 1/4 45
20-1812-35 1.500
1.8175 11/32 45
20-1812-34 1.500
1.8175 3/16 45
25-1812-34 1.500
1.8175 3/16 45
25-1812-18 1.500
1.8175 3/8 45
20-1812-18 1.500
1.8175 3/8 45
20-1812-9N 1.500
1.8175 5/16 45
25-1812-9 1.500
1.8175 5/16 45
20-1812-9 1.500
1.8175 5/16 45
20-1812-20 1.500
1.8175 7/16 45
20-1812-2 1.500
1.8175 7/32 45
20-1812-8 1.500 1-9/16 1.8175 7/32 45
25-1812-2 1.500
1.8175 7/32 45
25-1812-55 1.500 1.555 1.8195 0.278 45
21-1812-55 1.500 1.555 1.8195 0.278 45
20-1812-1+020 1.500
1.8375 7/32 45
20-1875-9 1.500
1.8800 1/4 45
20-1875-0 1.500
1.8800 3/8 45
25-1875-14 1.500
1.8800 5/16 45
20-1875-14 1.500
1.8800 5/16 45
20-1875-21 1.500
1.8800 7/16 45
25-1875-13 1.500
1.8800 7/32 45
20-1875-8 1.500 1-5/8 1.8800 7/32 45
20-1875-13 1.500
1.8800 7/32 45
20-1937-9 1.500
1.9430 1/4 45
20-1937-10 1.500
1.9430 3/8 45
20-1937-20 1.500
1.9430 5/16 45
20-1937-26 1.500
1.9430 7/16 45
20-2000-9 1.500
2.0055 3/8 45
20-2000-32 1.500
2.0055 5/16 45
20-2000-24 1.500
2.0055 7/16 45
21-1750-50 1.500T 1.614 1.7570 0.255 45
21-1875-57 1.505T 1.630 1.8820 0.280 45
21-1875-53 1.505T 1.689 1.8820 0.380 45
21-1750-56 1.510T 1.575 1.7550 0.250 45
25-1929-1 1.516
1.9291 0.394 45
22-1929-1N 1.516
1.9291 0.394 45
22-1929-1 1.516
1.9291 0.394 45
22-1834-1 1.516T 1.618 1.8349 0.301 30
22-1812-4 1.520
1.8120 0.197 30
22-1812-5 1.520
1.8120 0.225 30
22-1812-4+005 1.520
1.817 .197 30
22-1812-4+020 1.520
1.822 .197 30
22-1812-5+010 1.520
1.822 .225 30
22-1812-4+010 1.520
1.8220 .197 30
22-1812-5+020 1.520
1.832 .225 30
22-1812-5+030 1.520
1.842 .225 30
22-1812-4+030 1.520
1.8420 .197 30
22-1812-5+040 1.520
1.852 .225 30
22-1812-5+040 1.520
1.852 .225 30
22-1812-4+040 1.520
1.8520 .197 30
21-1812-51 1.530T 1.670 1.8195 0.307 45
25-1812-51 1.530T 1.670 1.8195 0.307 45
22-1899-1 1.531 1.600 1.8985 0.275 30
22-1812-7 1.535
1.8120 0.365 45
22-1812-7+005 1.535
1.817 .365 0
25-1812-56 1.535
1.8195 0.293 45
21-1812-56 1.535
1.8195 0.293 45
22-1812-7+010 1.535
1.822 .365 0
22-1812-7+020 1.535
1.832 .365 0
22-1812-7+030 1.535
1.842 .365 0
22-1969-2 1.535
1.9685 0.413 45
25-1969-2 1.535
1.9685 0.413 45
22-1969-2N 1.535
1.9685 0.413 45
22-1812-6N 1.540
1.8125 0.365 20
22-1812-3 1.540T 1.610 1.8120 0.365 30
22-1812-3 1.540T 1.610 1.8120 0.3650 30
22-1817-3 1.540T 1.610 1.8170 0.365 30
25-1812-3 1.540T 1-5/8 1.8175 7/32 45
20-1812-3 1.540T 1-5/8 1.8175 7/32 45
21-1812-59 1.540T 1.635 1.8195 0.250 45
22-1817-3+010 1.540T 1.610 1.827 .365 30
22-1817-3+020 1.540T 1.610 1.837 .365 30
22-1817-3+030 1.540T 1.610 1.847 .365 30
22-1817-3+040 1.540T 1.610 1.857 .365 30
25-1937-51 1.540T 1.718 1.9420 0.315 45
21-1937-51 1.540T 1.718 1.9420 0.315 45
22-1811-2N 1.548T 1.650 1.8110 0.334 45
22-1856-1 1.550T
1.8560 0.257 45
22-1831-1 1.555
1.8315 0.280 30
22-1831-1+005 1.555
1.8365 .280 30
22-1831-1+015 1.555
1.8465 .280 30
22-1831-1+030 1.555
1.8615 .280 30
22-1841-1 1.560
1.8415 0.2510 20
22-1823-1 1.560T 1.569 1.8230 0.273 30
20-1750-39 1.563
1.7550 1/4 45
20-1750-42 1.563
1.7550 3/16 45
20-1750-41 1.563
1.7550 3/8 45
20-1750-40 1.563
1.7550 5/16 45
20-1750-38 1.563
1.7550 7/32 45
22-1812-1 1.563 1.662 1.8120 0.365 45
22-1812-2 1.563 1.662 1.8120 3/8 45
20-1812-1 1.563
1.8175 1/4 45
20-1812-1N 1.563
1.8175 1/4 45
25-1812-1 1.563
1.8175 1/4 45
25-1812-36 1.563
1.8175 3/16 45
20-1812-36 1.563
1.8175 3/16 45
20-1812-19 1.563
1.8175 3/8 45
20-1812-10 1.563
1.8175 5/16 45
20-1812-37 1.563
1.8175 7/16 45
20-1812-4N 1.563
1.8175 7/32 45
25-Prefix Denotes Powdered Metal Material
Page 9
-N Suffix Denotes Nickel Based Alloy, S-Stellite

VALVE SEAT INSERT PROGRESSIVE LISTING BY I.D.
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
20-1812-4 1.563
1.8175 7/32 45
25-1812-4 1.563
1.8175 7/32 45
22-1818-1 1.563 1.662 1.8180 0.365 45
22-1818-2 1.563 1.662 1.8180 3/8 45
22-1818-1+020 1.563 1.662 1.838 .365 45
22-1847-1 1.563
1.8465 9/32 30
22-1818-1+030 1.563 1.662 1.848 .365 45
20-1875-2 1.563
1.8800 1/4 45
25-1875-2 1.563
1.8800 1/4 45
20-1875-16 1.563
1.8800 3/8 45
25-1875-11 1.563
1.8800 5/16 45
20-1875-11 1.563
1.8800 5/16 45
20-1875-28 1.563
1.8800 5/32 45
22-1880-2 1.563 1.625 1.8800 7/16 30
20-1875-29 1.563
1.8800 7/16 45
20-1875-19 1.563
1.8800 7/32 45
25-1875-19 1.563
1.8800 7/32 45
22-1880-2+020 1.563 1.625 1.900 7/16 30
22-1880-2+030 1.563 1.625 1.910 7/16 30
25-1937-4 1.563
1.9430 1/4 45
20-1937-4 1.563
1.9430 1/4 45
20-1937-4N 1.563
1.9430 1/4 45
20-1937-0 1.563
1.9430 3/8 45
20-1937-3 1.563
1.9430 5/16 45
20-1937-27 1.563
1.9430 7/32 45
20-2000-10 1.563
2.0055 1/4 45
20-2000-34 1.563
2.0055 3/8 45
20-2000-11 1.563
2.0055 5/16 45
20-2000-33 1.563
2.0055 7/32 45
20-2062-14 1.563
2.0680 1/2 45
20-2062-6 1.563
2.0680 1/4 45
20-2062-13 1.563
2.0680 3/8 45
20-2062-19 1.563
2.0680 5/16 45
20-2062-20 1.563
2.0680 7/16 45
20-2062-18 1.563
2.0680 7/32 45
20-2125-19 1.563
2.1305 1/4 45
20-2125-21 1.563
2.1305 3/8 45
20-2125-20 1.563
2.1305 5/16 45
20-2125-22 1.563
2.1305 7/16 45
20-2125-18 1.563
2.1305 7/32 45
22-1957-1 1.563T 1.658 1.9570 0.313 30
22-1803-1 1.571
1.8035 0.312 45
22-1819-1 1.571T 1.616 1.8195 0.303 30
22-1819-1+005 1.571T 1.616 1.8245 .303 30
22-1819-1+010 1.571T 1.616 1.8295 .303 30
22-1819-1+020 1.571T 1.616 1.8395 .303 30
25-1937-52 1.573T 1.699 1.9445 0.379 45
21-1937-52 1.573T 1.620 1.9445 0.379 45
22-1946-1N 1.574
1.9465 7/32 45
22-1946-1N+010 1.574
1.9565 .315 45
22-1946-1N+020 1.574
1.9665 .315 45
22-1946-1N+030 1.574
1.9765 .315 45
22-1885-1 1.575
1.8850 0.333 30
25-2008-2 1.575
2.0079 0.413 45
22-2008-2 1.575
2.0079 0.413 45
22-2008-2N 1.575
2.0079 0.413 45
22-1857-1 1.575T 1.660 1.8570 0.229 45
25-1875-54 1.575T 1.672 1.8820 0.290 45
21-1875-54 1.575T 1.672 1.8820 0.290 45
25-1875-51 1.575T 1.692 1.8820 0.317 45
21-1875-51 1.575T 1.692 1.8820 0.317 45
22-1894-2 1.575T 1.705 1.8940 0.256 45
22-1894-3 1.575T 1.692 1.8940 0.375 45
20-1937-12 1.578T 1.720 1.9430 0.203 30
21-1812-60 1.590T 1.622 1.8195 0.450 45
20-1875-7 1.594
1.8800 1/4 45
20-1875-7+005 1.594
1.885 1/4 45
22-2018-1 1.594
2.0180 9/32 45
22-1815-1 1.595
1.8150 1/4 45
22-1962-1N 1.595T 1.730 1.9620 0.365 30
22-1814-1 1.600
1.8140 0.315 45
20-2000-25 1.600
2.0055 9/32 45
25-1875-56 1.600T 1.673 1.8820 0.252 45
21-1875-56 1.600T 1.673 1.8820 0.252 45
22-1858-1N 1.608
1.8580 0.209 30
22-1854-2 1.609T 1.705 1.8545 0.277 45
22-1854-1 1.610T 1.680 1.8545 0.277 45
25-2047-1 1.614
2.0472 0.413 45
22-2047-1 1.614
2.0472 0.413 45
22-2047-1N 1.614
2.0472 0.413 45
21-1875-52 1.615T 1.747 1.8820 0.290 45
22-2051-1 1.615T 1.710 2.0510 0.359 30
22-1991-1N 1.616
1.9910 0.309 45
20-1812-38 1.625
1.8175 1/4 45
20-1812-40 1.625
1.8175 3/8 45
20-1812-39 1.625
1.8175 5/16 45
20-1812-12 1.625
1.8175 7/32 45
25-1812-12 1.625
1.8175 7/32 45
20-1875-1N 1.625
1.8800 1/4 45
25-1875-1 1.625
1.8800 1/4 45
20-1875-1 1.625
1.8800 1/4 45
25-1875-38 1.625
1.8800 3/16 45
20-1875-38 1.625
1.8800 3/16 45
20-1875-18 1.625
1.8800 3/8 45
20-1875-17 1.625
1.8800 5/16 45
25-1875-6 1.625
1.8800 7/32 45
20-1875-6 1.625
1.8800 7/32 45
20-1875-4 1.625
1.8800 9/32 45
20-1875-1+020 1.625
1.9000 1/4 45
22-1912-1 1.625
1.9120 9/32 45
20-1937-18 1.625 1-25/32 1.9430 0.238 45
25-1937-2 1.625
1.9430 1/4 45
20-1937-2 1.625
1.9430 1/4 45
20-1937-8 1.625
1.9430 3/8 45
25-1937-8 1.625
1.9430 3/8 45
25-1937-6 1.625
1.9430 5/16 45
20-1937-7 1.625
1.9430 5/16 45
20-1937-22 1.625
1.9430 7/16 45
20-1937-6 1.625
1.9430 7/32 45
20-1937-5 1.625
1.9430 9/32 45
25-Prefix Denotes Powdered Metal Material
Page 10
-N Suffix Denotes Nickel Based Alloy, S-Stellite

VALVE SEAT INSERT PROGRESSIVE LISTING BY I.D.
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
22-2003-6N 1.625
2.003 0.2795 45
20-2000-13 1.625
2.0055 1/4 45
20-2000-13N 1.625
2.0055 1/4 45
20-2000-23 1.625 1-13/16 2.0055 1/4 45
20-2000-21 1.625
2.0055 11/32 45
20-2000-3 1.625
2.0055 19/64 45
20-2000-3S 1.625
2.0055 19/64 45
20-2000-3N 1.625
2.0055 19/64 45
20-2000-0 1.625
2.0055 3/8 45
20-2000-14 1.625
2.0055 5/16 45
20-2000-27 1.625
2.0055 7/16 45
20-2000-12 1.625
2.0055 7/32 45
20-2000-6 1.625
2.0055 9/32 45
20-2062-11 1.625
2.0680 1/4 45
20-2062-15 1.625
2.0680 3/8 45
20-2062-21 1.625
2.0680 5/16 45
20-2062-9 1.625
2.0680 7/16 45
20-2062-7 1.625
2.0680 9/32 45
20-2125-24 1.625
2.1305 1/4 45
20-2125-26 1.625
2.1305 3/8 45
20-2125-12 1.625
2.1305 7/16 45
20-2125-6 1.625
2.1305 9/32 45
20-2250-16 1.625
2.2555 3/8 45
20-2250-21 1.625
2.2555 5/16 45
20-2250-22 1.625
2.2555 7/16 45
21-1875-55 1.625T 1.715 1.8820 0.352 45
21-2000-50 1.625T 1.800 2.0070 0.368 45
22-2006-6S 1.630
2.0060 0.280 45
22-2051-2 1.632T 1.737 2.0510 0.299 30
25-1875-50 1.640
1.8820 0.280 45
21-1875-50 1.640
1.8820 0.280 45
22-1953-3 1.640T 1.828 1.9535 0.1950 20
22-1953-2S 1.640T 1.670 1.9535 0.215 45
22-1900-2 1.645
1.9000 0.250 45
22-1900-2+010 1.645
1.910 .250 45
22-1900-2+020 1.645
1.920 .250 45
22-1900-2+030 1.645
1.930 .250 45
22-1900-3 1.650
1.9000 0.220 30
22-1900-1 1.650
1.9000 0.300 45
22-1900-3+010 1.650
1.910 .220 30
22-1900-3+020 1.650
1.920 .220 30
22-1900-3+030 1.650
1.930 .220 30
21-1937-54 1.650T 1.770 1.9445 0.314 45
25-2087-2 1.654
2.0866 0.413 45
22-2087-2N 1.654
2.0866 0.413 45
22-2087-2 1.654
2.0866 0.413 45
22-1973-1 1.658T 1.875 1.9730 0.300 45
22-1973-1+015 1.658T 1.875 1.988 .300 45
22-1973-1+030 1.658T 1.875 2.003 .300 45
22-1952-1 1.660
1.9520 0.345 45
22-1919-1N 1.665
1.9195 0.250 45
25-1937-53 1.674T 1.734 1.9445 0.276 45
21-1937-53 1.674T 1.734 1.9445 0.276 45
22-2004-3N+010 1.685 1.735 2.014 .317 30
22-2004-3N 1.685T 1.735 2.0040 0.317 30
22-2004-3N+020 1.685T 1.735 2.024 .317 30
22-2004-4N 1.688
2.0040 0.438 30
22-2006-5 1.690
2.0060 0.214 30
22-2006-7S 1.690
2.0060 0.215 30
22-2006-5+005 1.690
2.011 .214 30
22-2006-5+010 1.690
2.016 .214 30
22-2006-5+020 1.690
2.026 .214 30
22-2006-5+030 1.690
2.036 .214 30
22-2006-5+040 1.690
2.046 .214 30
22-2010-2 1.692
2.0100 0.294 45
22-2088-1 1.692
2.0880 0.299 30
22-2088-1+005 1.692
2.093 .299 30
22-2088-1+010 1.692
2.098 .299 30
22-2088-1+015 1.692
2.103 .299 30
22-2088-1+020 1.692
2.1080 .299 30
22-2088-1+030 1.692
2.118 .299 30
22-2088-1+043 1.692
2.131 .299 30
22-2088-1+062 1.692
2.1500 .299 30
22-1973-3 1.692T 1.820 1.9730 0.394 45
22-2126-1 1.693
2.1260 0.413 45
22-2126-1N 1.693
2.1260 0.413 45
25-2126-1 1.693
2.1260 0.413 45
22-2010-1 1.694
2.0105 0.396 45
22-1969-3 1.704
1.9690 0.234 30
22-2136-1N 1.705T 1.785 2.1360 0.319 45
22-1999-1 1.712T 1.767 1.9990 0.386 30
22-2001-1 1.712T 1.870 2.0010 0.385 30
22-2001-1+010 1.712T 1.870 2.011 .385 30
22-2001-1+013 1.712T 1.870 2.014 .385 30
22-2001-1+020 1.712T 1.870 2.021 .385 30
22-2001-1+030 1.712T 1.870 2.031 .385 30
22-2004-1 1.718
2.0040 0.345 45
22-2049-1 1.719 1.827 2.0485 11/32 30
22-2049-1+010 1.719 1.827 2.0595 11/32 30
22-2049-1+020 1.719 1.827 2.0685 11/32 30
22-2049-1+030 1.719 1.827 2.0785 11/32 30
20-2125-17 1.719
2.1305 9/32 30
20-2250-14 1.719
2.2555 1/4 45
22-1969-4N 1.726
1.9690 0.2340 30
22-1973-2 1.730
1.9730 0.256 45
22-2051-3 1.731
2.0510 0.360 45
22-2165-1 1.732
2.1654 0.433 45
22-2165-1N 1.732
2.1654 0.433 45
25-2165-1 1.732
2.1654 0.433 45
22-2051-4 1.744T 1.957 2.0510 0.241 30
22-2051-4+010 1.744T 1.957 2.0610 .241 30
22-2051-4+020 1.744T 1.957 2.0710 .241 30
20-1937-33 1.750
1.9430 1/4 45
20-1937-36 1.750
1.9430 3/8 45
20-1937-35 1.750
1.9430 5/16 45
25-1937-37 1.750
1.9430 7/16 45
20-1937-37 1.750
1.9430 7/16 45
20-1937-19 1.750
1.9430 7/32 45
20-2000-17 1.750
2.0055 1/4 45
25-2000-17 1.750
2.0055 1/4 45
25-Prefix Denotes Powdered Metal Material
Page 11
-N Suffix Denotes Nickel Based Alloy, S-Stellite

VALVE SEAT INSERT PROGRESSIVE LISTING BY I.D.
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
20-2000-36 1.750
2.0055 3/16 45
20-2000-19 1.750
2.0055 3/8 45
20-2000-18 1.750
2.0055 5/16 45
20-2000-22 1.750
2.0055 5/32 45
25-2000-22 1.750
2.0055 5/32 45
20-2000-37 1.750
2.0055 7/16 45
20-2000-1N 1.750
2.0055 7/32 45
25-2000-1 1.750
2.0055 7/32 45
20-2000-1 1.750
2.0055 7/32 45
20-2000-20 1.750
2.0055 9/32 45
20-2000-1+020 1.750
2.0255 7/32 45
20-2062-28 1.750
2.0680 11/32 45
20-2062-2 1.750
2.0680 5/16 45
20-2062-27 1.750
2.0680 5/16 45
20-2062-25 1.750
2.0680 7/32 45
20-2125-7 1.750
2.1305 1/4 45
20-2125-5 1.750 1-13/16 2.1305 1/4 45
20-2125-0 1.750
2.1305 3/8 45
20-2125-8 1.750
2.1305 5/16 45
20-2125-30 1.750
2.1305 7/16 45
20-2125-11 1.750
2.1305 7/32 45
20-2125-10 1.750
2.1305 9/32 45
20-2187-16 1.750
2.1930 1/4 45
20-2187-8 1.750
2.1930 3/8 45
20-2187-17 1.750
2.1930 5/16 45
20-2187-7 1.750
2.1930 7/16 45
20-2187-15 1.750
2.1930 7/32 45
20-2187-3 1.750
2.1930 9/32 45
20-2250-27 1.750
2.2555 1/4 45
20-2250-7 1.750
2.2555 3/8 45
20-2250-28 1.750
2.2555 5/16 45
20-2250-17 1.750
2.2555 7/16 45
20-2250-5 1.750
2.2555 7/32 45
20-2250-6 1.750
2.2555 9/32 45
20-2312-6 1.750
2.3180 1/4 30
20-2312-7 1.750
2.3180 7/16 45
22-2129-2 1.752T 1.868 2.1290 0.306 30
22-2205-2 1.772
2.2047 0.433 45
25-2205-2 1.772
2.2047 0.433 45
22-2205-2N 1.772
2.2047 0.433 45
22-2169-1 1.777T 1.995 2.1695 0.350 45
22-2100-1 1.782
2.1000 0.267 30
22-2100-1+010 1.782
2.110 .267 30
22-2100-1+020 1.782
2.120 .267 30
22-2100-1+030 1.782
2.130 .267 30
20-2187-6 1.800
2.1930 3/8 45
22-2052-1 1.809
2.0520 0.256 45
25-2244-1 1.811
2.2441 0.433 45
22-2244-1 1.811
2.2441 0.433 45
22-2244-1N 1.811
2.2441 0.433 45
20-2000-38 1.813
2.0055 1/4 45
25-2000-7 1.813
2.0055 7/32 45
20-2000-7 1.813
2.0055 7/32 45
25-2062-3 1.813
2.0680 1/4 45
25-2062-1 1.813 1-7/8 2.0680 1/4 45
20-2062-1 1.813 1-7/8 2.0680 1/4 45
20-2062-3 1.813
2.0680 1/4 45
20-2062-30 1.813
2.0680 3/16 45
20-2062-31 1.813
2.0680 5/16 45
20-2062-29 1.813
2.0680 7/32 45
20-2062-10 1.813
2.0680 9/32 45
22-2129-1 1.813 1.863 2.1290 7/16 30
25-2125-1 1.813
2.1305 1/4 45
20-2125-1 1.813
2.1305 1/4 45
20-2125-38 1.813
2.1305 3/16 45
20-2125-33 1.813
2.1305 3/8 45
20-2125-32 1.813
2.1305 5/16 45
20-2125-13 1.813
2.1305 7/16 45
20-2125-31 1.813
2.1305 7/32 45
22-2131-1 1.813 1.863 2.1310 7/16 30
22-2131-1+010 1.813 1.863 2.1410 7/16 30
22-2131-1+020 1.813 1.863 2.1510 7/16 30
22-2131-1+030 1.813 1.863 2.1610 7/16 30
22-2131-1+040 1.813 1.863 2.171 7/16 30
20-2187-10 1.813
2.1930 1/2 45
20-2187-1 1.813
2.1930 1/4 45
20-2187-1S 1.813
2.1930 1/4 45
20-2187-20 1.813
2.1930 11/32 45
20-2187-9 1.813
2.1930 3/8 45
20-2187-19 1.813
2.1930 5/16 45
20-2187-21 1.813
2.1930 7/16 45
20-2187-18 1.813
2.1930 7/32 45
20-2187-2 1.813
2.1930 9/32 45
20-2250-8 1.813
2.2555 1/4 45
20-2250-32 1.813
2.2555 11/32 45
20-2250-29 1.813
2.2555 3/16 45
20-2250-19 1.813
2.2555 3/8 45
20-2250-31 1.813
2.2555 5/16 45
20-2250-18 1.813
2.2555 7/16 45
20-2250-11 1.813
2.2555 9/32 45
20-2312-11 1.813
2.3180 3/8 45
20-2312-8 1.813
2.3180 7/16 45
20-2312-3 1.813
2.3180 9/32 45
22-2015-1 1.828
2.0150 3/16 45
22-2220-1 1.843
2.2200 0.312 45
22-2284-2N 1.850
2.2835 0.433 45
25-2284-2 1.850
2.2835 0.433 45
22-2284-2 1.850
2.2835 0.433 45
22-2150-1 1.859
2.1500 0.292 30
22-2150-1+010 1.859
2.1600 .292 30
22-2150-1+020 1.859
2.1700 .292 30
22-2150-1+030 1.859
2.1800 .292 30
22-2150-1+040 1.859
2.190 .292 30
22-2368-3N 1.870
2.3680 0.460 20
20-2125-2 1.875
2.1305 1/4 45
25-2125-2 1.875
2.1305 1/4 45
20-2125-34 1.875
2.1305 7/32 45
20-2125-2+020 1.875
2.1505 1/4 45
20-2187-12 1.875
2.1930 1/4 45
20-2187-11 1.875
2.1930 3/16 45
25-Prefix Denotes Powdered Metal Material
Page 12
-N Suffix Denotes Nickel Based Alloy, S-Stellite

VALVE SEAT INSERT PROGRESSIVE LISTING BY I.D.
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
QC #
I.D.
I.D. Top
Taper
Exact
O.D.
Depth
Seat
Angle
20-2187-24 1.875
2.1930 3/8 45
20-2187-23 1.875
2.1930 5/16 45
20-2187-25 1.875
2.1930 7/16 45
20-2187-4 1.875
2.1930 9/32 45
20-2250-9 1.875
2.2555 1/4 45
20-2250-13 1.875
2.2555 3/8 45
20-2250-20 1.875
2.2555 5/16 45
20-2250-34 1.875
2.2555 7/16 45
20-2250-2 1.875
2.2555 9/32 45
20-2312-14 1.875
2.3180 1/4 45
20-2312-5 1.875
2.3180 3/8 45
20-2312-10 1.875
2.3180 7/16 45
20-2312-1 1.875
2.3180 9/32 45
20-2375-15 1.875
2.3805 7/16 45
22-2208-1 1.889T 1.980 2.2080 0.361 30
22-2323-2N 1.890
2.3228 0.433 45
25-2323-2 1.890
2.3228 0.433 45
22-2323-2 1.890
2.3228 0.433 45
22-2362-1N 1.890
2.3622 0.453 45
25-2362-1 1.890
2.3622 0.453 45
22-2362-1 1.890
2.3622 0.453 45
22-2368-2N 1.890
2.3680 0.460 20
22-2387-2 1.890
2.3875 0.361 20
22-2247-1 1.895
2.2475 0.353 45
20-2125-4 1.906
2.1305 1/4 45
22-2402-1 1.929
2.4016 0.453 45
22-2402-1N 1.929
2.4016 0.453 45
25-2402-1 1.929
2.4016 0.453 45
22-2381-1 1.930
2.3810 0.323 30
22-2381-1S 1.930
2.3810 0.323 30
22-2381-1+020 1.930
2.4010 .3225 30
20-2125-36 1.938
2.1305 1/4 45
20-2125-3 1.938
2.1305 3/16 45
20-2125-37 1.938
2.1305 5/16 45
20-2125-39 1.938
2.1305 7/32 45
20-2187-27 1.938
2.1930 1/4 45
20-2187-29 1.938
2.1930 3/8 45
20-2187-28 1.938
2.1930 5/16 45
20-2187-30 1.938
2.1930 7/16 45
20-2187-26 1.938
2.1930 7/32 45
20-2250-15 1.938
2.2555 1/4 45
25-2250-1 1.938
2.2555 3/16 45
20-2250-1 1.938
2.2555 3/16 45
20-2250-35 1.938
2.2555 7/32 45
20-2250-12 1.938
2.2555 9/32 45
20-2250-1+010 1.938
2.2655 3/16 45
20-2312-16 1.938
2.3180 1/4 45
20-2312-17 1.938
2.3180 5/16 45
20-2312-2 1.938
2.3180 9/32 45
22-2212-1N 1.960
2.2125 0.250 45
22-2441-1 1.969
2.4409 0.453 45
22-2441-1N 1.969
2.4409 0.453 45
25-2441-1 1.969
2.4409 0.453 45
22-2387-1 1.970
2.3870 0.382 30
22-2405-1 1.973T 2.080 2.4050 0.390 30
22-2366-2N 1.977
2.3665 0.392 45
20-2250-37 2.000
2.2555 1/4 45
20-2250-36 2.000
2.2555 7/32 45
20-2250-10 2.000
2.2555 9/32 45
20-2312-9 2.000
2.3180 1/4 45
20-2312-19 2.000
2.3180 3/8 45
20-2312-4 2.000
2.3180 9/32 45
20-2375-1 2.000
2.3805 3/16 45
20-2375-2N 2.000
2.3805 9/32 45
20-2375-2 2.000
2.3805 9/32 45
20-2437-1 2.000
2.4430 9/32 45
22-2503-1 2.000
2.5030 1/2 45
22-2506-1 2.000
2.5060 1/2 45
20-2500-1 2.000
2.5060 9/32 45
22-2506-1+010 2.000
2.5160 1/2 45
22-2506-1+020 2.000
2.526 1/2 45
22-2506-1+030 2.000
2.5360 1/2 45
22-2480-1 2.008
2.4803 0.453 45
22-2480-1N 2.008
2.4803 0.453 45
25-2480-1 2.008
2.4803 0.453 45
22-2366-1 2.010
2.3665 0.353 30
22-2305-1 2.012T 2.103 2.3055 0.2685 45
22-2306-1 2.020T 2.088 2.3060 0.269 30
22-2381-2S 2.030
2.3810 0.323 30
22-2381-2 2.030
2.3810 0.323 30
22-2381-2+010 2.030
2.3910 .3225 30
22-2381-2+020 2.030
2.4010 .3225 30
22-2367-1 2.045
2.3670 0.382 30
22-2305-2 2.045T 2.080 2.3050 0.190 30
22-2444-1 2.046
2.4440 0.299 30
22-2444-1+005 2.046
2.449 .299 30
22-2444-1+010 2.046
2.454 .299 30
22-2444-1+020 2.046
2.464 .299 30
22-2444-1+043 2.046
2.487 .299 30
22-2444-1+062 2.046
2.506 .299 30
22-2520-1N 2.047
2.5197 0.453 45
22-2520-1 2.047
2.5197 0.453 45
22-2304-1 2.057T 2.115 2.3045 0.191 45
22-2559-1 2.087
2.5591 0.453 45
22-2559-1N 2.087
2.5591 0.453 45
22-2435-2N 2.125
2.4350 0.625 30
22-2435-1 2.125 2.207 2.4350 5/8 30
22-2677-1 2.165
2.6772 0.472 45
22-2677-1N 2.165
2.6772 0.472 45
20-2562-1 2.188
2.5685 1/4 30
22-2756-1N 2.244
2.7559 0.472 45
22-2756-1 2.244
2.7559 0.472 45
22-2590-1 2.281 2.360 2.5900 5/8 30
20-2937-1 2.375
2.9435 9/16 45
20-3125-20 2.438
3.1310 9/16 30
20-3125-7 2.500
3.1310 9/32 45
25-Prefix Denotes Powdered Metal Material
Page 13
-N Suffix Denotes Nickel Based Alloy, S-Stellite