2008 Envoy Trailblazer 4.2L Engine Computer Module Unit ECU ECM OEM 12618163
2008 Envoy Trailblazer 4.2L Engine Computer Module Unit ECU ECM OEM 12618163 Tested and working from running donor, will need to be programmed. Donor Vehicle – 2008 GMC ENVOY SLT 4.2L *Please make sure this is the part you need for before purchasing. Matching part numbers is the best way to ensure you are getting an identical replacement. All parts have been tested and removed from the donor vehicle in each listing. .