0 0 2006 Cummins ISX Engine Control Module (ECM) for CM870 $750 USD (GOOD USED/ TESTED) OEM 2006 Cummins ISX Engine Control Module, ECM, ECU, for sale!!!!, P/N: 3684009, Service Model Name: CM870, Stock #: E2163 For more information about this listing,... ConditionUsedFits To Model(s)CM870Part Number3684009Stock NumberE2163 MLS Number10670308CategoryEngine Control Modules (ECM) Last Updated7/14/2025 LocationHialeah, FL, US Sold ByJJ Rebuilders Inc. (844) 385-___ SHOWNUMBERCall Seller Email Seller Save More Info