CUMMINS CM850 - CM876 MAIN HARNESS caterpillar AMP Research Side Steps

AMP Research Side Steps

**2018 RAMs require a bypass cable

and powersports

No EGR/VGT-related fault codes

Mechanically damaged device and/or device connector

CUMMINS CM850 - CM876 MAIN HARNESS caterpillar AMP Research Side StepsCUMMINS CM850 CM876 Description: This Is The Cummins CM850 CM876 Main Harness, You Will Need Our "Cummins HD Base Harness" In Order To Power Up And Connect With Your J1939 Device. With The CM850 CM876 Main Harness You Can Connect Direct To The Engine Or Just On The Bench And Start Diagnosing Or Even Flash The ECM. Connect With Cummins Insite, Jpro, And Etc. This One Will Hook To The Following Engine ECM's: CM850 ISB, ISC, ISL, QSK19 MCRS CM870