The Cummins ISX is one of the most demanding on-highway engines in North American trucking, and its injectors take a beating. When it’s time for an ISX injector replacement, HD Injectors delivers remanufactured Cummins ISX fuel injectors built on genuine OEM cores, rebuilt with precision-engineered components, and flow-tested to factory output. Our ISX injectors are a cost-effective alternative to new Cummins units without sacrificing durability, timing accuracy, or fuel atomization.
Cummins ISX Injector Applications
Our catalog covers the full ISX family, CM870, CM871, CM2250, and CM2350 ECM platforms, including Signature, ISX, and ISX15 on-highway variants used in Freightliner, Kenworth, Peterbilt, International, and Volvo trucks.
Why Fleet Managers Choose HD Injectors for Cummins ISX Fuel Injectors
- Lower cost per truck, remanufactured ISX injectors deliver OEM performance at a fraction of new part pricing
- Eliminate engine knocking, hard starts, and cylinder misfires caused by worn ISX injector nozzles
- Reduce exhaust smoke and DPF regen frequency with clean, calibrated spray patterns
- Regain lost fuel economy, critical for per-mile margins on long-haul and regional routes
- Flow-matched sets available to minimize balance-rate variation across cylinders
Cummins ISX Injector Rebuild Process
Each ISX injector is fully disassembled, ultrasonically cleaned, and inspected for nozzle wear, needle lift, and spill-valve integrity. Worn components are replaced with OEM-spec parts, and every unit is flow-tested and high-pressure leak-tested before leaving the facility.
Order Cummins ISX Injectors with Confidence
Browse our in-stock Cummins ISX injectors and get your truck back on the road without paying new-OEM prices. Running a CM870, CM871, CM2250, or CM2350 and not sure which ISX injector is the right match? Fill out our Make Sure It Fits form, we’ll cross-reference your VIN/engine serial and ECM (Electronic Control Module) and confirm the correct injector for your truck before your order ships.
Cummins ISX Injector Frequently Asked Questions
How do I know when my Cummins ISX injectors need replacement?
Common symptoms include hard starting, excessive white or black smoke, rough idle, fuel in the oil, cylinder-specific fault codes (such as spill valve codes on the ISX), drops in fuel economy, and elevated crankcase pressure. A contaminated or diluted oil sample is often the earliest warning sign.
What's the price of a remanufactured Cummins ISX injector compared to new?
Remanufactured Cummins ISX fuel injectors from HD Injectors typically run significantly less than new OEM units while delivering comparable performance and service life. Exact pricing depends on the CM platform and core availability, contact us or check individual product listings for current pricing.
Do your ISX injectors work on both CM870 and CM2250 engines?
We stock application-specific ISX injectors for each CM platform. It’s critical to order the correct part number for your ECM, because injectors from different CM generations are not always interchangeable even though the engines look similar. Fill out our Make Sure It Fits form to order the right part number.
Can I install Cummins ISX injectors myself?
ISX injector replacement is a technical job requiring proper torque sequences, new injector hold-down hardware, and in many cases ECM programming to load new injector trim codes. We recommend installation by a qualified diesel technician.
Do you offer a warranty on remanufactured ISX injectors?
Yes. All HD Injectors’ remanufactured Cummins ISX injectors carry a warranty against defects in workmanship and materials. See individual product pages for full warranty terms.
Contact Us!
We’ll be happy to answer all of your questions. Our expertise in turbo engines and combined 20 years of experience plus modern, top quality equipment is all you need.
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