Remanufactured Cummins X15 Injectors — Efficiency & Performance Series

The Cummins X15 is the current-generation flagship of the on-highway Cummins lineup, evolved from the ISX15 platform and available in Efficiency Series and Performance Series configurations. HD Injectors’ remanufactured Cummins X15 injectors are built on genuine OEM cores and rebuilt to factory spec, a smart alternative when replacing worn units that are dumping fuel, losing atomization, or triggering cylinder balance codes.

Cummins X15 Injector Applications

Our remanufactured X15 injectors fit Efficiency Series (2017+) and Performance Series engines used in Kenworth, Peterbilt, Freightliner, International, and Western Star Class 8 tractors. We also cross-reference ISX15 applications for fleets running mixed legacy and current equipment.

Benefits of Remanufactured X15 Injectors

• Budget-friendly replacement vs. new Cummins OEM X15 injector pricing
• Eliminate engine knocking and cylinder misfire from worn nozzles
• Reduce exhaust smoke and cut unscheduled DPF regens
• Regain lost fuel economy critical to Class 8 per-mile operating costs
• Flow-tested and calibrated to OEM balance-rate standards

Our X15 Injector Rebuild Standard

Every Cummins X15 injector is fully disassembled, ultrasonically cleaned, and inspected. Critical wear components like nozzle assemblies, springs, and seals are replaced with OEM-spec parts. Each unit is then flow-tested across the full pressure range and high-pressure leak-tested before packaging.

Shop Cummins X15 Injectors — Built for Class 8 Duty

Get remanufactured Cummins X15 injectors built on genuine OEM cores, flow-tested, and ready to install. If you’re not sure whether your engine calls for an Efficiency Series, Performance Series, or legacy ISX15 injector, send us your VIN or Engine Serial Number through our Make Sure It Fits form. We’ll match the right part number to your engine serial before you check out.

Cummins X15 Injector Frequently Asked Questions