Equipment and specifications shown on this page have been republished from manufacturer website and are subject to change without notice. Consult your Inland dealer at time of ordering for standard and optional equipment.
The Power to Perform.
A refreshed X15 Performance Series is new to 2021 and designed to meet EPA and Greenhouse Gas Phase 2 requirements. While the X15 Performance Series is being updated from the 2017 version, many hardware changes have been in production since 2020 with the X15 Efficiency Series. Built with Uptime, improved Total Cost of Ownership and Ease of Operations in mind, the 2021 X15 Performance Series is the first choice for drivers that need the power to perform.
The 2021 X15 Performance Series incorporated key product improvements launched with the 2020 X15 Efficiency Series and builds off the most successful product launch in Cummins history. With the best “Percent Zero Touch” and lowest “Touches Per Thousand” metrics to date, Cummins expects the trend to continue with the 2021 X15 product lineup.
Cummins offers the longest service intervals in the industry – keeping you on the road and out of the service bay.
New to the 2021 X15 Performance Series engine is limited ratings optimized for heavy-haul and premium linehaul customers. Peak torque is available at 1,000 rpm, with governed engine speeds at 1,900 rpm for Performance Series ratings.
|Engine Model||Power – hp (kW)||Peak Torque – lb-ft (N•m) @ rpm|
|X15 525||525 (391)||1850 (2508)|
|X15 565||465 (421)||1850 (2508)|
|X15 565||465 (421)||2050 (2779)|
|Advertised Horsepower||525-565 hp||391-421 kW|
|Peak Torque||1850-2050 lb-ft||2508-2779 N•m|
|Governed Speed||1900 RPM|
|Clutch Engagement Torque||1000 lb-ft||1356 N•m|
|Number of Cylinders||6|
|System Weight||3,152 lb||1,430 kg|
|Engine (Dry)||2,961 lb||1,343 kg|
|Aftertreatment System||191 lb||87 kg|
Don’t sweat the numbers. This engine doesn’t need to be babied. With longer maintenance intervals, the less time your trucks spend in the shop, and the more loads you can carry. So instead of bleeding your wallet dry, you’re stuffing it instead. It gives new meaning to “win/win.”
|Item||Severe < 5.0 mpg||Shorthaul < 5.0 – 5.9 mpg||Normal 6.0 – 6.9 mpg||Light >7.0 mpg|
|Oil Drain Interval||25,000 Mi||50,000 Mi||60,000 Mi||75,000 Mi|
|X15 Oil Drain with Valvoline PB||30,000 Mi||45,000 Mi||55,000 Mi|
|X15 Oil Drain with Cummins OilGuardTM1||Extensions available||Extensions available||Extensions available||Up to 100,000 mi|
|Fuel Filter*||25,000 Mi||50,000 Mi||60,000 Mi||75,000 Mi|
*For Premium Blue users, the Fuel Filter interval matches the ODI.
< 5.5 mpg
5.5 – 6.5 mpg
< 6.5 mpg
|DPF Ash Maintenance***||250,000 – 400,000 m||400,000 – 600,000 mi||600,000-800,000 Mi|
|DEF Filter||300,000 mi / 6,750 hours|
|Valve Adjustment||500,000 mi / 10,000 hours / 60 months|
|Drive Belts||500,000 mi / 10,000 hours / 60 months|