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Your engine has to respond instantly, every time you fire it up and step on the throttle. Cummins ISC delivers that kind of high-pressure performance. A new High-Pressure Common-Rail (HPCR) fuel system, coupled with a proven Holset turbo, delivers outstanding performance at ratings from 260 to 330 hp.

We know that you keep your equipment a long time. That's why every ISC comes with replaceable mid-stop wet cylinder liners, plus robust features that include heavy-duty roller followers, targeted piston cooling and 30% more efficient oil cooling for improved reliability and durability, every day of every year. Plus, heavy-duty design features also give the ISC stronger engine braking capacity.

Because every dollar counts, maintenance has been simplified for an industry-leading cost of ownership with reduced downtime.

Every ISC is covered by a full 5-year/100,000-mile (160,935 km) standard warranty. Cummins ISC engines are backed by the most extensive customer support network in the industry.

Need rugged, reliable auxiliary power? There's no better choice than an Onan® genset. Cummins engines and Onan gensets are backed by the same worldwide network of distributors/dealers, so we're able to offer design, manufacturing and customer support synergies not found in any other company supporting the fire/emergency industry.

With superior performance from engines like the ISC and strong support from our local distributor/dealer network, it's no wonder Cummins is fast becoming the #1 choice for fire apparatus everywhere in North America.

For more information on this engine, download the ISC Fire And Emergency Applications Brochure. For details on the full lineup of Cummins engines for fire and emergency vehicles, download the Fire and Emergency Vehicle Engines Brochure.

 
Engine ModelAdvertised hpPeak TorqueGoverned Speed
ISC 330330950 @ 13002200
ISC 315315950 @ 13002200
ISC 300300860 @ 13002200
ISC 285285800 @ 13002200
ISC 260260800 @ 13002200

The High-Pressure Common-Rail (HPCR) fuel system maintains high injection pressures at every engine speed for optimum performance. A Holset wastegated turbo delivers exceptional low-end torque. Plus, the new fuel system and other design changes combine to make the ISC 50% quieter, so it's easier for the driver to hear the dispatcher.
Specifications.
Advertised Horsepower260-330 hp195-246 kW
Peak Torque800-950 lb-ft1085-1288 N•m
Governed Speed 2200
Clutch Engagement Torque 500 lb-ft678 N•m
Number of Cylinders 6
Oil System Capacity 6.3 U.S. gallons23.8 liters
Net Weight (dry) 1,530 lb694 kg

Every heavy-duty Cummins ISC is designed for years of dependable use, with many design features found in every ISX and ISM engine. These include replaceable mid-stop cylinder liners for ease of rebuilding and longer engine life and roller camshaft followers for extended camshaft life. Plus, a robust crankcase breather that virtually eliminates oil carryover.

But that's not all. These additional design features add long-term reliability with significant benefits:
  • Direct piston-cooling nozzles lower piston temperatures for longer life.
  • Self-tensioning belt drive system drives both fan and alternator for reduced maintenance and increased belt life.
  • Combination full-flow/bypass lube oil filter delivers better filtration for longer component life.
  • High-efficiency lube cooler lowers oil temperatures and improves lubrication.

The result is an engine your fire department can count on, every day for years to come.

 

The E Brake by Jacobs®* is an exhaust brake designed specifically for the ISC. Drivers get extra control on every steep downhill grade, and the E Brake by Jacobs also helps reduce wear on service brakes, so they last significantly longer. Because it is a robust design, the optional E Brake by Jacobs delivers up to 205 braking horsepower, for increased driver control.
*Jacobs is a registered trademark of Jacobs Vehicle Systems.

Oil and oil filter changes for the ISC are set at 500-hour, 6-month or 15,000-mile (24,000 km) intervals. The overhead doesn't need to be checked for 5,000 hours, 48 months or 150,000 miles (240,150 km).

The primary fuel filter changes are set at 500-hour, 6-month or 15,000-mile (24,000 km) intervals. Secondary fuel filter changes can go longer, at 1,000-hour, 12-month or 30,000-mile (48,000 km) intervals.

The standard coolant change interval is 240,000 miles (385,000 km). However, Cummins ISC is fully compatible with long-life coolant/antifreeze formulas which allow changes out to every 600,000 miles (960,000 km) or 6 years. If the engine is equipped with a coolant filter, it will need to be replaced on the same intervals as the oil filter. Follow maintenance guidelines recommended by the manufacturer for safe use with extended service intervals.

See Owner's Manual for every detail. And when it's time for maintenance, be sure to visit your Cummins distributor for fast, accurate service. At Cummins, we make every minute count.

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

Every Cummins ISC fire apparatus engine is backed by a base warranty of 5 years or 100,000 miles (160,935 km), whichever comes first, including parts, labor and towing.

For more information, see the Fire Apparatus Warranty Certificate, Bulletin 3381161.

There is no deductible for covered repairs during the first 2 years of the base warranty. A deductible of $100 (U.S. dollars) per repair applies during the 3rd, 4th and 5th years of the base engine warranty.
Extended Coverage.

Our extended coverage plans include 100% parts and labor with a $100 deductible per repair event after the base warranty expires. Plan 1 gives you complete engine coverage for 5 years and your choice of 150,000 miles (241,402 km) or 200,000 miles (321,869 km). Plan 2 lets you choose between major engine component coverage for a choice of 7 years/150,000 miles (241,402 km) or 10 years/200,000 miles (321,869 km).

Extended coverage is available to be purchased in the first 6 months after the in-service date.

For complete coverage details, see Bulletins 3381368 and 3381367.

 

Our customer care programs are unmatched by anyone else in the industry. Every Cummins customer is supported by:

  • The largest parts and service network in the industry with over 3,500 authorized repair locations everywhere throughout the U.S. and Canada
  • Accelerated problem diagnosis at every Cummins QuickServe® location
  • 24/7 access to Cummins
  • 1-800-DIESELS (1-800-343-7357)

For your nearest authorized Cummins service provider, see our service locator.

 

Cummins Inc. is parent company to Cummins Power Generation - which manufactures Onan brand gensets. These gensets are made specifically for the rugged fire/emergency market where reliability, uptime and performance are crucial. We offer a complete line of mobile gensets to power every fire or emergency application, including hydraulic, diesel, natural gas, LPG and gasoline fuel-powered models ranging from 2-40 kW, plus portable gensets in 4 and 6 kW.

Cummins engines and Onan gensets are backed by the same worldwide network of distributor/dealers. We offer design, manufacturing and customer support synergies not found in any other company supplying the fire/emergency industry. Contact your nearest Cummins Onan distributor by calling 1-800-888-ONAN or 763-574-5000, or visit www.onan.com.

 



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