Cummins Every Time - School Bus

The 2007 ISC is the newest generation of the C Series family - a family that has proven itself reliable and efficient in many years of service in the bus industry. Ratings for the ISC range from 240-300 hp.

Cummins ISC for 2007 reduces emissions by more than 90% while maintaining the traditional values of dependability and efficiency. We achieve this balanced performance with a totally integrated emissions control system that includes a High Pressure Common Rail fuel injection system, our proven cooled-EGR subsystem, the patented Cummins Variable Geometry Turbo (VG Turbo) and a Cummins Particulate Filter.

Maintenance has been kept to an absolute minimum, to keep your operating costs low. The base warranty plan for the ISC is among the best in the industry.

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View and print a PDF file of our ISC brochure for school bus applications.

Engine Model	Advertised hp (kW)	Peak Torquelb-ft (N•m) @ rpm	Governed Speed
ISC 300	300 (224)	860 (1166) @ 1300	2200
ISC 285	285 (213)	800 (1085) @ 1300	2200
ISC 260	260 (194)	800 (1085) @ 1300	2200
ISC 260	260 (194)	660 (895) @ 1300	2400
ISC 240	240 (179)	660 (895) @ 1300	2400

High pressure fuel injection and revised gear designs combine to make the ISC the quietest engine in its class, reducing driver fatigue and improving safety.

A high-strength block and cylinder head, roller followers, a combination full-flow and bypass oil filter and mid-stop cylinder liners all contribute to enhanced reliability and long engine life.

Specifications.

Advertised Horsepower 240-300 hp 179-224 kW
Peak Torque 660-860 lb-ft 895-1166 N•m
Governed Speed 2200-2400 rpm
Clutch Engagement Torque 500 lb-ft 678 N•m
Number of Cylinders 6
Oil System Capacity 6.3 U.S. gallons 23.8 liters
System Weight 1,680 lb 762 kg
Engine Weight 1,630 lb 739 kg
Aftertreatment* 50 lb 23 kg

*Increase over standard muffler.

Maintenance intervals will not change for 2007. The only additional maintenance required is replacement of the coalescing filter in the crankcase ventilation system and the periodic cleaning of the Cummins Particulate Filter.

ISC Maintenance Intervals.

Miles / Kilometers Hours Months
Oil and Filter 15,000 / 24,000 500 6
Primary Fuel Filter 15,000 / 24,000 500 6
Secondary Fuel Filter 30,000 / 48,000 1,000 12
Coolant Filter None* None* None*
Overhead Adjustment 150,000 / 241,500 5,000 48
Std. Coolant Change 240,000 / 385,000 N/A 24
Coalescing Filter Every 3rd to 4th oil change
Particulate Filter Cleaning 200,000-400,000 mi. (320,000-640,000 km)

*If engine is equipped with an optional coolant filter, it will need to be replaced on the same intervals as the oil filter.
The Cummins Particulate Filter is designed to last the life of your engine. Regeneration is fully automated and controlled by the ECM. See Owners Manual for complete details.

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

Cummins base engine coverage is designed to give school bus owners every confidence. Cummins also offers extended coverage options on the ISC engine that are among the best in the school bus industry. For specific details, contact your local distributor.