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Cummins ISB6.7. Better Adds Up. Reduced operating costs. Lower greenhouse gas emissions. The fact that you get both in an engine that meets 2014 GHG and fuel efficiency standards a year ahead of schedule with near-zero emissions is a bonus. The ISB6.7 is available exclusively for transit bus hybrid diesel-electric propulsion systems. Cummins ISB6.7 already provides best-in-class fuel economy, and it gets up to 2 percent better fuel economy versus the 2010 model, so you get lower operating costs. There is no compromise in performance, either. The ISB6.7 used in hybrid dieselelectric power plants is rated at 280 hp (209 kW) with 660 lb-ft (896 N•m) of torque. ISB6.7 Maintenance Intervals Maintenance Item Miles/Kilometers Hours Months Oil and Filter 15,000 mi 500 6 24,000 km Fuel Filter 15,000 mi 500 6 24,000 km Coolant Filter 15,000 mi 500 6 24,000 km Overhead Adjustment 150,000 mi 5,000 48 241,500 km Standard Coolant Change 60,000 mi 2,000 24 96,000 km Coalescing Filter Every 3rd to 4th Oil Change Interval DEF Filter 200,000 mi 320,000 km Particulate Filter Cleaning 200,000 mi 320,000 km Consult your Operation and Maintenance Manual for more information. ISB6.7 Specifications Advertised Horsepower 280 hp 209 kW Peak Torque 660 lb-ft 896 N•m Governed Speed 2600 rpm Clutch Engagement Torque 400 lb-ft 542 N•m Number of Cylinders 6 System Weight 1,357 lb 616 kg Engine (Dry) 1,150 lb 522 kg Aftertreatment System* 207 lb 94 kg *Increase over standard muffler; does not include chassis OEM-supplied components.
A Better Route To Better Performance. Cummins ISL9 clean diesel engine combines proven reliability with exceptional durability. Years of bus duty in tough urban routes provide ample evidence that its high power-to-weight ratio, replaceable wet liner design, roller followers, bypass oil filtration, targeted piston cooling and other heavy duty engine features set the standard for others to follow. It uses the XPI fuel system, and shares the same high capacity Electronic Control Module (ECM) with all other Cummins on-highway diesel engines, for powerful, smooth, quiet performance. ISL9 Maintenance Intervals Maintenance Item Miles/Kilometers Hours Months Oil and Filter 15,000 mi 500 6 24,000 km Fuel Filter 15,000 mi 500 6 24,000 km Coolant Filter 15,000 mi 500 6 24,000 km Overhead Adjustment 150,000 mi 5,000 48 241,500 km Standard Coolant Change 60,000 mi 2,000 24 96,000 km Coalescing Filter Every 3rd to 4th Oil Change Interval DEF Filter 200,000 mi 6,500 320,000 km Particulate Filter Cleaning 200,000 mi 6,500 320,000 km Consult your Operation and Maintenance Manual for more information. Plus, because cleaner is better, the ISL9 already meets 2014 GHG and fuel economy standards, getting 2 percent better fuel economy versus the previous model. Clean diesel ratings are available at 280 hp (209 kW) and 330 hp (246 kW) with up to 1100 lb-ft (1493 N•m) of peak torque. A diesel-electric hybrid rating is available at 330 hp (246 kW) with a peak torque of 1100 lb-ft (1493 N•m). The ISL9 has the street smarts to make every urban transit operation run better. Every bus. And every route. ISL9 Specifications Advertised Horsepower 280-330 hp 209-246 kW Peak Torque 900-1100 lb-ft 1221-1493 N•m Governed Speed 2200 rpm Clutch Engagement Torque 550 lb-ft 746 N•m Number of Cylinders 6 System Weight 1,914 lb 868 kg Engine (Dry) 1,697 lb 770 kg Aftertreatment System* 217 lb 98 kg *Increase over standard muffler; does not include chassis OEM-supplied components.
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