Every Start.

Reliable, durable and the most fuel-efficient engine in the industry, Cummins ISB platform has been a mainstay of the RV industry for years.

We’ve kept what has made this engine so successful and enhanced it.  The ISB6.7 features a High Pressure Common Rail (HPCR) fuel injection system that enables multiple injection events per cycle for cleaner, quieter and more complete combustion.  The proprietary VGT™ Turbocharger has been improved as well for strong throttle response and dependability.

A 90% reduction in NOx has been achieved through the addition of SCR to the Cummins Aftertreatment System.  This has allowed us to reduce the amount of cooled EGR into the power cylinder and recalibrate the ISB6.7 for greater responsiveness while maintaining our fuel economy leadership.

And that’s just a few of the features the ISB6.7 has to offer.  It is designed to keep your maintenance to a minimum while delivering big performance results.

All backed by the best customer support in the business.

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.