ISX15 for Fire & Emergency (EPA 2010)

Power 455 - 600 hp
339 - 447 kW
Torque 1750 - 1850 lb-ft
2373 - 2508 N•m
Certification EPA 2010

Select an Application


Big Power. Every Call. ISX15 for EPA 2010.

Cummins ISX15 EPA 2010 delivers quicker throttle response than ever before, with a higher power density than any other engine in its class. Plus, it achieves near-zero emissions levels without sacrificing the reliability or durability that you expect from a Cummins engine. The ISX15 is more than capable of powering the largest and heaviest fire equipment you use.

Every major component and system is designed and built by Cummins for total quality control, building on a proven engine with fully integrated electronics. An improved, more precise air-handling system has reduced restriction, which helps optimize performance.

In addition, maintenance intervals are unchanged from previous years. So the ISX15 will deliver the lowest operating costs of any engine in its class.

With strong performance, long-range durability, exceptional dependability plus superior fuel economy, you’ve got every reason to spec an ISX15.

More information about the performance, standard features, and maintenance intervals for this engine is available online or from your Cummins representative.

Advertised Horsepower  455-600 hp  339-448 kW 
Peak Torque  1750-1850 lb-ft 2373-2508 N•m 
Governed Speed  2100 rpm  
Clutch Engagement Torque  1000 lb-ft 1356 N•m 
Number of Cylinders  6  
Oil System Capacity  13 U.S. gallons 49.2 liters
System Weight  3,122 lb  1,416 kg 
Engine (Dry) 2,965 lb 1,345 kg 
Aftertreatment System*  222 lb  101 kg 

*Increase over standard muffler and does not include chassis OEM-supplied components.

Engine Model  Advertised HP  Peak Torque  Governed Speed 
ISX15 455 


1750 @ 1200 


ISX15 500


1850 @ 1200 


ISX15 550


1850 @ 1200


ISX15 600


1850 @ 1200 


XPI Fuel System – The proven technology of the XPI common-rail fuel system delivers a precise quantity of fuel at ultra-high pressures. This, together with more robust electronic engine controls, enables multiple injection events per cycle. Flexibility in injection timing increases fuel economy and performance while decreasing exhaust emissions.

Single Overhead Cam - Our XPI fuel system eliminates the need for a second camshaft.  This provides weight savings.

VGT™ Turbocharger – The Cummins VGT Turbocharger is both simple and precise. Electric actuation allows infinite adjustment, providing the exact amount of boost necessary for superior response. The proven sliding-nozzle design has best-in-class reliability and durability.

Cooled EGR – This next-generation system lowers combustion temperatures for reduced emissions and optimized fuel economy.

Fully Integrated Electronic Controls – A single higher-capacity Electronic Control Module (ECM) controls everything from air intake to exhaust aftertreatment for peak performance and near-zero emissions.

Intebrake™ – Even with one overhead cam, the ISX15 still has best-in-class braking horsepower (up to 600 bhp) for greater vehicle control with reduced service brake wear.

Cummins Aftertreatment System – The proven Cummins Particulate Filter reduces particulate matter by over 90%. In 2010 it is combined with Cummins Selective Catalytic Reduction (SCR) to meet emissions standards while maintaining best-in-class performance, reliability and durability. Cummins SCR technology has been proven in over 200,000 European vehicles and uses Diesel Exhaust Fluid (DEF) to achieve NOx emissions at near-zero levels. DEF will be readily available; reference Cummins Filtration flyer LT15618 for more information.

Maintenance Item  Miles/Kilometers  Hours  Months 
Oil and Filter*  15,000 mi
24,000 km 


Fuel Filter  25,000 mi
40,000 km 



Coolant Filter** 50,000 mi
80,000 km 



Valve Adjustment  500,000 mi 
800,000 km 



Coalescing Filter***  125,000 mi 
200,000 km



DEF Filter   200,000 mi 320,000 km     
Particulate Filter
200,000-400,000 mi
320,000-640,000 km

*Assuming normal duty cycle for fire/emergency vehicle applications.
**With appropriate filter.
*** For Blowby <12 in. H2O

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