2 0 2005 GMC 8.1 Transmission Control Module (TCM) for a GMC C5500 $100 USD Engine Control Module for GM LS Motors. Fits 8.1, 6.0, 5.3, 4.8, 5.7, with Blue/Green Harness Plugs. Service No. 12589462, Hardware No. 12589161. Guaranteed Reprogrammable, Call DTI Trucks... ConditionUsedFits To Make(s)GMCFits To Model(s)C5500Stock Number66630 MLS Number13163155CategoryTransmission Control Modules (TCM) Last Updated2/6/2025 LocationWheat Ridge, CO, US Sold ByDTI Truck Parts (833) 614-___ SHOWNUMBERCall Seller Email Seller Save More Info