Cummins CM870 | CM875 | ECM Repair Service. Your ECM will be returned fully reconditioned, tested, and ready to be installed back to the exact vehicle it came off, saving you the time & expense of having a new ECM programmed to your machine.

Cummins ISX CM870/875 part numbers:

P/N: 4963807 | S/N: 5000150 | D/C 11022007 |  ESN: 35211455 | E/C: AT2004312 3684275,  3684009, 3683289, 3682729, 368328R. The Cummins motors that use the ECM (Electronic Control Module) CM870 and CM875 include the ISX, QSX, ISL, ISC, and ISM engines. The CM 870 and CM 875 are mainly used in earlier-model engines, while they are also used in later-model engines—these ECMs control engine functions, such as fuel injection, timing, and emissions.

Warranty

A 1-year warranty even backs our ECM repair service. Our experts not only repair your ECM but also ensure that it’s built for reliability and long-lasting performance.

Common Problems

• Blowing fuses
• No communication
• Engine shutting down
• Fault codes in unit
• Intermittent faults
• Oil intrusion
• Water damaged
• Injector driver faults

Process

We first diagnose the unit; if it’s not repairable or no problems are found, it costs $200 plus shipping. In this case, we will process a partial refund for the difference. All you need to do is ship your unit to us and we will diagnose the faults and ship the fixed unit back to you free of shipping cost.

Why trust us

Our engineering team has over 15 years of experience, more than 10K repaired ECMs, and the latest simulation technology. we are always happy to assist you with any technical assistance we can. Feel free to contact us to discuss the faults you are experiencing before sending in your parts. ECM Engineering USA / ECM Repair USA   Cummins ISX, ECM, ECU Diesel, Engine Computer, Signature ISX