
PRODUCT Detail
Beyond Every Expectation.
Cummins ISX15 is for the customer wanting the ultimate in driving performance – the kind you expect in a premium motorhome. Plus, it achieves near-zero emissions levels without sacrificing the reliability or durability that you expect from a Cummins engine.
Plus, you get exclusive Cummins programs like Coach Care™ to meet your service needs as you travel across North America in your motorhome. All backed by the most extensive customer support network in North America.
For Cummins-branded merchandise, electronic tools, literature and more, visit our PowerStore web site.
Advertised Horsepower | 600 hp | 447 kW |
Peak Torque | 1950 lb-ft | 2644 N•m |
Governed Speed | 2100 rpm | |
Clutch Engagement Torque | 1000 lb-ft | 1356 N•m |
Number of Cylinders | 6 | |
Oil System Capacity | 14 U.S. gallons | 52.9 liters |
System Weight | 3,186 lb | 1,445 kg |
Engine (Dry) | 2,964 lb | 1,344 kg |
Aftertreatment System* | 222 lb | 101 kg |
*Increase over standard muffler and does not include chassis OEM-supplied components
XPI Fuel System – Delivers a precise quantity of fuel at ultra-high pressures. This, together with more robust electronic engine controls, enables multiple injection events per cycle.
Single Overhead Cam – Improved XPI fuel system eliminates the need for a second camshaft. This provides weight savings and simplifies operation.
VGT™ Turbocharger – Enhanced response and control with electric actuation for infinite adjustment, providing exact boost at any rpm. Sliding-nozzle design increases reliability and durability.
Cooled EGR – Next-generation system lowers combustion temperatures for reduced emissions and optimized fuel economy.
Fully Integrated Electronic Controls – A single, higher-capacity Electronic Control Module (ECM) controls everything from air intake to exhaust aftertreatment for peak performance and near-zero emissions.
Intebrake – Even with one overhead cam, the ISX15 still has best-in-class braking horsepower (up to 600 bhp) for greater vehicle control with reduced service brake wear.
Cummins Aftertreatment System – The proven Cummins Particulate Filter reduces particulate matter by over 90%. In 2010 it is combined with Cummins Selective Catalytic Reduction (SCR) to meet emission standards while maintaining best-in-class performance, reliability and durability.

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