EVERY dESTInaTIon. - Cummins Engines

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For MotorhoMes.The Cummins ISB XT combines the performance of350 horsepower with the industry-leading fuel economyand low cost of ownership of the legendary ISB to set anew standard for 350-horsepower motorhomes. The “XT”in its name refers to extra displacement (new 6.7 liter), extrapower for acceleration and climbing hills, and extra stoppingpower from the electrically actuated Variable GeometryTurbocharger (VGT Turbocharger) that acts like anintegrated exhaust brake.The ISB XT was developed to optimize every aspect ofthe engine’s operation, utilizing Cummins comprehensivein-house design approach to every engine system from theair intake to the exhaust system. Integration of Cumminsadvanced electronic controls, VGT Turbocharger,high-pressure fuel system, combustion technology andexhaust aftertreatment is how the ISB XT delivers on theperformance and value expectations of the motorhomeowner. And the ISB XT does it while being certified andcompliant to the toughest standards, the 2007 EPAemissions regulations.specifications350 hP/750 @ 1800 Fr 91662-rVPower (hp) torque (lb-ft)(kW) (N•m)Advertised Horsepower 350 Hp 261 kwpeAk torque 750 lb-ft 1017 N•mGoverNed speed2600 rpmClutCH eNGAGemeNt torque 400 lb-ft 542 N•mNumber of CyliNders 6oil system CApACity 4 u.s. GAlloNs 15.1 literssystem weiGHt 1,190 lb 540 kGeNGiNe (dry) 1,150 lb 522 kGAftertreAtmeNt* 40 lb 18 kG*Increase over standard muffler.Cummins is a pioneer in product improvement. Thus specifications may changewithout notice. Illustrations may include optional equipment.
Features And Benefits.The High Pressure Common Rail (HPCR) fuel system andVGT Turbocharger combine to deliver enhanceddriveability and improved fuel economy.Benefits include:■ Outstanding performance with fully integrated design– Enhanced High Pressure Common Rail fuel systemdelivers optimum balance of performance, emissionscontrol and fuel economy across the entireoperating rangeequipment that Makes A Difference.■ Cummins 15.2-cfm air compressor is standard■ Water-in-fuel sensor alerts drivers of contamination thatcould cause performance and durability problems■ RoadRelay 4 is an onboard monitoring system thatprovides the driver with trip information such as mpg,engine fault details and optional anti-theft protection– Patented VGT Turbocharger has enhanced responseand control with electric actuation for infiniteadjustment– Cummins Particulate Filter is fully integrated foruncompromising performance, reliability. Reducesparticulate matter more than 90%enhanced reliability And Durability.The Cummins ISB XT is designed for years of dependableuse in many different applications, including motorhomes.■ Directed piston cooling– Lowers piston and oil ring temperatures– Heavy-Duty engine feature– Crankcase ventilation system is electronicallymanaged for optimum efficiency and eliminatesoil carryover■ Industry-leading fuel economy– 24-valve cylinder head provides superior “breathing”– Vertical-centered injector position optimizescombustion– Cooled Exhaust Gas Recirculation lowerscombustion temperatures for reduced emissionsand optimized mpg■ Low cost of ownership– 15,000-mile (24,000 km) or 1-year oil changeintervals– “No-adjust” 150,000-mile (240,000 km)engine overhead■ Vertical-centered fuel injection– Results in uniform piston ring temperatures– Improves oil consumption control■ The VGT Turbocharger– Enhances reliability because it has only one movingpart in the hot exhaust flow■ Integrated combustion air heater– Proven durability– Eliminates the need for glow plugs or add-onstarting aids■ Combination full-flow/bypass lube oil filter– Delivers better filtration for longer component life
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EVERY dESTInaTIon. - Cummins Engines

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