Cummins CM871 ECM Repair

Is your ISX down with a no-start, no-communication, injector-circuit, or derate fault on a CM871? This is the bench repair for Cummins ISX EPA07 modules — the yellow Bosch dual-connector ECM used on 2007–2010 ISX engines, not Celect and not later CM2250 / CM2350 boxes.

We repair failed injector drivers, power-supply faults, processor and memory issues, and water-damaged boards, then function-test the unit before it ships. Typical applications are Cummins ISX 15L EPA07 (DPF + EGR) with CM871 hardware. Repairs include a 1 year warranty on workmanship.

Send your core or start the repair below — include engine model, ECM part number, and symptom notes so we match the correct CM871 hardware.