4 0 2004 Used GMC ECM $216 USD Used GMC ECM, Engine Model: 8.1L MFI OHV 496 CID gas at 325hp ConditionUsedEngine Model8.1L MFI OHV 496 CID gas at 325hpFits To Make(s)GMCFits To Model(s)Topkick C4500Will Fit Year(s)2004Part Number12586243Stock Number509-15962 MLS Number11291974CategoryEngine Control Modules (ECM) Last Updated4/19/2023 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info