ISM for Motorhome (EPA 07)

Power 450 - 500 hp
336 - 373 kW
Torque 1550 - 1550 lb-ft
2102 - 2102 N•m
Certification EPA 2007

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Overview:

When you start looking at motorhomes with a living room bigger than most condos, one thing is an absolute necessity: A Cummins ISM 500 or ISM 450, with all the power, smoothness and reliability to glide effortlessly up the peaks and through the valleys, even when towing a boat, car or trailer.

For years, the ISM has been a favorite among motorhome owners (and trucking fleets), for its reliable performance, excellent fuel economy, low maintenance and operating costs. In 2007, it's even better. There's a new crankcase ventilation system that's electronically managed for optimum efficiency.

The fully-integrated system includes our proven cooled-EGR subsystem, a high pressure fuel injection system, the patented VG Turbo and a crankcase ventilation system, all working together for optimum performance.

Every ISM is backed by the most extensive customer support network in the industry, with programs like Coach Care™ to meet your service needs as you travel across North America in your motorhome.

For Cummins-branded merchandise, electronic tools, literature and more, visit our PowerStore web site.

Advertised Horsepower 450-500 hp 336-373 kW
Peak Torque 1550 lb-ft 2102 N•m
Governed Speed 2100 rpm  
Clutch Engagement Torque 700 lb-ft 949 N•m
Number of Cylinders 6  
Oil System Capacity 10.2 U.S. gallons 38.6 liters
Engine (Dry) 2,206 lb 1,000 kg
Engine Model Advertised hp (kW) Peak Torque lb-ft (N•m) @ rpm Governed Speed
ISM 500 500 (373) 1550 (2102) @ 1200 2100
ISM 450 450 (336) 1550 (2102) @ 1200 2100
  Miles
Kilometers
Months
Oil and Filter 15,000 mi
24,000 km
12
Fuel Filter 15,000 mi
24,000 km
12
Coolant Filter 15,000 mi
24,000 km
12
Overhead Adjustment 120,000 mi
192,000 km
 
Coalescing Filter 150,000 mi
240,000 km
24

*Oil, fuel and water filters should be changed at every oil change.

See your Owner's Manual for every detail. And when it's time for maintenance, be sure to visit your authorized Cummins distributor or dealer.

Cummins ISM is fully compatible with long-life coolant/antifreeze formulas which allow changes out to 6 years. Follow maintenance guidelines recommended by the manufacturer for safe use with extended service intervals.

For complete maintenance information, please consult your Owner's Manual or Operations and Maintenance Manual.


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