Power To Tow, Power To Go.

Making the journey as enjoyable as your destination is what the Cummins ISL9 is designed to deliver. The highest power-to-weight ratio in its class means strong towing capability. Enhancements to the turbocharger and control systems deliver better fuel economy and reduced emissions over those of prior models. The ISL9 is designed with heavy-duty features that include replaceable wet liners, roller followers, bypass oil filtration and targeted-piston cooling, for extended life, which is one reason that ISL9-powered motorhomes deliver traditionally higher resale value.

A Cummins-designed and manufactured aftertreatment system is fully integrated, and includes On-Board Diagnostics that continuously monitor engine and aftertreatment performance to ensure near-zero emissions.

Customizing the performance of your engine is possible through the use of Cummins PowerSpec, an online tool that lets you adjust operating parameters to match your need for enhanced fuel economy, higher performance or a balance between the two. 

All of this is backed by unmatched support from the largest service network in North America, including the exclusive Coach Care™ program and 24/7/365 assistance from Cummins Care representatives at 1-800-DIESELS™ (1-800-343-7357).

For Cummins-branded merchandise, electronic tools, literature and more, visit the PowerStore.

Features & Benefits

XPI Fuel System – Delivers superior performance at every speed. Multiple injection events per cycle improve fuel efficiency and enable smoother, quieter operation.

VGT™ Turbocharger From Cummins Turbo Technologies – This patented design is widely recognized as the industry leader for performance. Electric actuation provides quick throttle response and increased braking horsepower.

Cooled Exhaust Gas Recirculation (EGR) – The next-generation system lowers combustion temperatures, for reduced emissions and optimized fuel economy.

High-Capacity Electronic Control Module (ECM) – A single ECM manages the entire engine and aftertreatment system, for optimum performance and fuel economy. This ECM is used across the board for Cummins on-highway engines, to simplify servicing.

Cummins Aftertreatment System From Cummins Emission Solutions – This proprietary system consists of a Diesel Particulate Filter (DPF) and Selective Catalytic Reduction (SCR) technology, for near-zero emissions.

Fleetguard®Fuel Filters, Lube Filters And Diesel Exhaust Fluid (DEF) From Cummins Filtration – Fleetguard filters protect against corrosion and contaminants that can cause performance issues. High-quality DEF is readily available at all Cummins distributors, within Cummins Filtration’s vast North American distribution network and at major service stations and truck stops.