2-Cummins_X15_Engines.pdf

The power to perform At Cummins, we’re not content with just building technologically advanced engines and integrated powertrains. We’re obsessed with identifying and delivering the exact power profile with the advanced features you need and the dependability you’ve come to trust.

A refreshed X15™ Performance Series is new to 2024 and designed to meet EPA and Greenhouse Gas Phase 2 requirements. Built with uptime, improved total cost of ownership and ease of operations in mind, the 2024 X15 Performance Series is the first choice for drivers who need the power to perform.

YOU GET IT ALL

The new improvements in the X15 lineup continue to focus on customers’ needs. It’s more than just providing the most efficient engine that is compliant with 2024 greenhouse gas standards. It’s about providing an engine that keeps working for you.

The 2024 X15 gives you the confidence needed to improve your business without sacrificing anything.

An unparalleled ability to look ahead Cummins customers can expect a digitally enriched experience over the life of their vehicles. Newly released features connect in-mission operations directly to maintenance and repair processes, giving customers an unparalleled ability to look ahead, optimize operations and minimize downtime.

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 3152 lb (1430 kg)

Engine weight (dry) 2961 lb (1343 kg)

Aftertreatment system 191 lb (87 kg)

X15 PERFORMANCE

SERIES SPECIFICATIONS

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Cummins Inc.

Box 3005 Columbus, IN 47202-3005 U.S.A.

cummins.com

Bulletin 6491585 Produced in U.S.A. Rev. 7/25 ©2025 Cummins Inc.

Providing up to a 2% fuel economy improvement can go a long way towards reducing the amount of money spent on fuel per year. Add in the strongest engine brakes in the industry and improved lug-back capabilities to keep drivers in top gear longer, the X15 Performance Series gives you the power you need, with the fuel economy you always wanted.

And with the longest service intervals in the industry, you’ll spend less money maintaining your equipment and get more out of it.

UPTIME. LOWER TOTAL COST OF OPTIMIZATION. EASE OF OPERATION.

The X15 Performance Series has been optimized with heavy-haul, premium linehaul and performance-oriented customers in mind. With three ratings designed for the traditional over-the-road customer, and up to 605 horsepower with the Productivity Series ratings, spec’ing the right rating for your operation has never been easier.

Maintenance item Severe <5.0 MPG Short haul <5.0-5.9 MPG Normal 6.0-6.9 MPG Light >7.0 MPG

Oil drain interval level 25,000 mi 50,000 mi 60,000 mi 75,000 mi

X15 oil drain with Valvoline Premium Blue*

30,000 mi 55,000 mi 65,000 mi 80,000 mi

X15 oil drain with Cummins OilGuard™**

Extensions available Up to 100,000 mi

Fuel filter* 25,000 mi 50,000 mi 60,000 mi 75,000 mi

Severe <5.5 MPG Normal 5.5-6.5 MPG Light >6.5 MPG

DPF ash maintenance*** 250,000-400,000 mi 400,000-600,000 mi 600,000-800,000 mi

ENGINE MAINTENANCE INTERVALS

AFTERTREATMENT MAINTENANCE INTERVALS

Valvetrain and Drive Belts maintenance intervals are set at 500,000 miles.

** Cummins OilGuard™ helps customers lower operating costs by precisely tailoring oil drain intervals for their engines. The program involves a three-phase process: a pre-test assessment to understand the fleet’s duty cycle, an on-test period where oil samples are analyzed and engine data captured to determine optimal intervals, and a post-test phase with annual reviews by Cummins engineers.

These engineers continuously monitor oil data for wear and contamination, ensuring extended drain intervals are safe and maintain engine performance and warranty coverage.

DEF filter maintenance interval is set at 300,000 miles.

If combined, percent idle time plus power takeoff (PTO) time is greater than 40% for Short-haul, Normal or Light intervals; use the next lower drain interval.

*For Premium Blue users, the Fuel Filter interval matches the ODI.

***Cummins recommends using Cummins genuine DPFs over cleaning of the DPF at the DPF ash maintenance interval. Users can experience extended DPF ash maintenance using the DPF maintenance fault lamp (FC5383).

READY TO PERFORM? START

YOUR X15 JOURNEY HERE.

For more information, please visit cummins.com.

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