Cummins and Detroit DD13 engines are best-in-class for diesel motorcoach chassis. Integrated with the latest technology and boasting horsepower ratings up to 600 hp, these engines will deliver the performance you expect when you need it most and provide a lifetime of no-hassle maintenance. And all of the latest engines are proven to meet emissions standards required for the 2010 legislation.
Favored for the largest, most luxurious diesel motorhomes, Cummins ISX12, ISX15 and L9 engines function as a completely integrated system.
| Cummins L9 | 450HP | 1250 lb-ft Torque |
| Cummins X12 | 500HP | 1695 lb-ft Torque |
| Cummins X15 | 605HP | 1950 lb-ft Torque |
To review specs and information on particular Cummins engines, visit their website.
With billions of dollars invested, the work of the world’s top engineers, and millions of miles of real-world experience, the DetroitTM DD13® engine has proven reliable when it really counts. The same powerful engine featured in many Freightliner trucks, the DD13 gives your motorhome a balance of acceleration, climbing power and speed. Its flat torque curve delivers responsiveness on demand that will conquer the steepest grades, even with a boat or vehicle in tow.
| DD13 | 12.8L | 500HP | 1,650 lb.-ft. torque |
Smart, fuel-efficient design makes the most of every gallon.
Lower your cost of ownership with easier serviceability
Our factory-installed Virtual Technician™ onboard diagnostic system takes the guesswork out of engine repair. When the check engine light illuminates, data is immediately collected, providing a technical snapshot of the engine’s status before, during and after a fault code event. This information is sent to you and the Detroit Customer Support Center (CSC), where a trained representative can diagnose the issue, recommend service and even contact the nearest authorized locations with parts in stock. The CSC can tell you if you need to pull over so you don’t cause further damage or if you can stay on the road. Put simply, it’s like having a technician in every coach.
Exhaust brakes offer increased brake and tire life as well as greater vehicle control by slowing the vehicle under stress conditions quickly and safely. Use in slippery conditions is not recommended. As they are an additional braking system, brake lights are activated when exhaust brakes are applied.
Available on select Cummins models, our engine brakes work in conjunction with Allison electronic transmissions, using engine exhaust backpressure to increase stopping power. This reduces the chance of overheating service brakes while improving control on steep grades.
Rear-engine diesels provide a host of benefits, including more floor plan options, quieter interior environments, more comfortable rides, lower fuel costs and effortless hill climbing. You'll also appreciate the enhanced reliability of a diesel engine and the fewer maintenance stops.
Side-mounted radiators are available on our raised-rail designs with Cummins engines. Like our rear-mounted radiators, this design features a variable-speed fan that automatically increases and decreases fan speed as needed to reduce noise and decrease power loss.
Conveniently positioned near the diesel tank for quicker fill-ups, the DEF tank also features stamped brackets rather than formed sheet metal.
Your driving range will be increased by a 150-gallon fuel tank, meaning more drive time to get you to your destination faster.
