600 Braking Horsepower From An Engine. Believe It.

The X15 is optimized to deliver the power to get you past traffic and over the next hill with 505 to 600 hp and 1850 lb-ft of peak torque. That is more than enough to get you out of the station, down the road, and up the steepest hill. But what’s really impressive is what happens when you crest the hill and take your foot off the accelerator. That’s when the most powerful engine brake in the industry kicks in, and you just ease on down the road.
 

NOTE: For all engines and options available, horsepower may be limited by the truck OEM

REPTO – Only available through certain OEMs due to clearance issues, uses a SAE C 14 tooth spline – Torque limit of 750 lb-ft, rotation is the same as the crankshaft

FEPTO – Available – Torque limit up to 975 lb-ft

_{* Depending on Configuration}

Cummins has been powering the fire service since 1937. Our new X15 Performance Series is designed specifically for fire service, with maximum performance.

Designed For The Fire Service.

• Better Pump Control – Specific calibrations, for the best engine rpm or discharge pressure control when pumping.
• No Derates – Regeneration or emissions related faults do not affect power output when you need it.
• One Source for Service – Your local distributor supports both Cummins engines and Onan® generators.

Performance.

• The Most Powerful Engine in Fire Service – The X15, with up to 600 hp, now gets even better performance with improved transient response, for faster acceleration.
• Stay in Control – The most powerful engine brake in the industry, for high-traffic situations and better service brake life.
• Better Acceleration, Faster Warmup and Stronger Engine Braking – The proven Cummins VGT® Turbo incorporates 15 years of technological improvements.

Reliability.

• Optimized Emissions Control – Cummins Single Module™ aftertreatment has exceptional thermal efficiency, resulting in fewer regenerations, and meets OBD16 and GHG17 requirements.
• Improved Oil Control – Up to 40 percent reduction in oil consumption through power cylinder improvements.