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X15 Powering an ever-changing world.
You can have it all with the X15 powertrain line-up from Cummins that meets Euro VI emission standards. With a focus of uptime, fuel economy, performance and minimising maintenance cost, the Cummins X15 lineup is the best it’s ever been..

The power to save.
Optimised for linehaul and regional haul applications, the X15 Efficiency Series sets the standards when it comes to over-the-road powertrain efficiency with ratings  from 550-580 hp.

  • EGR-free design: meeting Euro VI emission standards
  • XPI Fuel System – High pressure enables multiple injection events per cycle for industry-leading fuel economy and quieter operation
  • ADEPT – a suite of advanced electronic engine-control features that interact with automated manual transmissions to enhance fuel efficiency by up to 6%. 
  • Single Module™ Aftertreatment System – A compact and lightweight system that offers increased ash capacity for industry-leading Diesel Particulate Filter maintenance intervals and improved serviceability compared to modular systems
  • HCA (Hill Climb Assist): A feature that detects when the vehicle is on a grade and delivers an alternate transmission shifting strategy and access to increased engine power (only available for 580 hp/2050 lb ft.).
  • Fleetguard Fuel and Lube Filters – Superior holding capacity provides better protection and enables longer service intervals
  • High-Capacity Electronic Control Module – This allows full integration of data inputs from all subsystems, optimizing performance

The power of versatility. 
The X15 Performance Series gives you the ultimate flexibility suitable for both manual and automated transmissions, vocational, heavy-haul and line-haul applications with ratings from 525-625 hp.

  • EGR-free design: meeting Euro VI emission standards
  • ADEPT – a suite of advanced electronic engine-control features that interact with automated manual transmissions to enhance fuel efficiency by up to 6%. 
  • Single Module™ Aftertreatment System – A compact and lightweight system that offers increased ash capacity for industry-leading Diesel Particulate Filter maintenance intervals improved serviceability compared to modular systems
  • Fleetguard Fuel and Lube Filters – Superior holding capacity provides better protection and enables longer service intervals
  • High-Capacity Electronic Control Module – This allows full integration of data inputs from all subsystems, optimizing performance
  X15 efficiency series X15 performance series
Horsepower 550-580 HP 525-625 HP
Peak torque 2050 lb-ft 1850-2050 lb-ft
Peak torque RPM 1000 1000
Governed speed (RPM)  1800 2000
Applications Line haul/regional haul truck, single trailer/b-double Heavy haul/vocational truck, single trailer/b-double
Engine weight (dry) 1327kg 1327kg

Cummins base warranty – confidence in writing. 
Cummins base engine warranty is 2 years/402,336 km/6259 hours, whichever comes first. Cummins will cover reasonable travel and towing when an engine is disabled by a warrantable failure.  
Cummins major component warranty is 5 years/804,672 km. 
During the base engine and the extended major components warranties, Cummins will pay for all parts and labour needed to repair the damage to the engine resulting from a warrantable failure. 
Extended coverage (Warranty Plus) is also available.
Contact your local Cummins branch or authorised dealer for details