The ISL9 for EPA 2010 delivers more of what you need from an urban transit bus engine.
Reliability of the ISL9 is enhanced with our proprietary XPI fuel system, designed and manufactured by Cummins with fewer moving parts than competitive units. The XPI fuel system is capable of the highest injection pressures in the industry. Fuel pressure is consistent at every rpm for stronger performance. This fuel system, together with a more robust Electronic Control Module (ECM), enables multiple injection events for cleaner, quieter and more complete combustion.
Maintenance intervals and costs remain virtually the same as in previous years with the only additional item being the replacement of the Diesel Exhaust Fluid (DEF) filter.
Ratings include our special hybrid diesel/electric engine.
All backed by the best customer support in the business.
Cummins PowerSpec is an electronic tool that makes it possible to tailor the operation of Cummins engines in every on-highway application.
See ISL PowerSpec Engine Features
|Oil and Filter*
|Primary Fuel Filter**
|Secondary Fuel Filter
|Standard Coolant Change****
|Particulate Filter Cleaning
*Assuming normal duty cycle **OEM-Supplied; intervals may vary ***If engine is equipped with an optional coolant filter, it will need to be replaced at the same intervals as the oil filter, SCA/DCA additive levels must be checked according to the interval listed in the Owners Manual ****Extended coolant drain/flush/fill intervals may be followed when certain requirements are met. For more information on these requirements, refer to the Cummins Coolant Requirements and Maintenance Service, Bulletin 3666132
For complete maintenance information, please consult your Owner’s Manual or Operations and Maintenance Manual, available on QuickServe Online.