3 0 Isuzu 6HK1X Engine Control Module (ECM) for a 2008 GMC C8500 Contact for price ISUZU 6HK1X Engine ECM for sale. P/N: 25841077 / 8258410770 / 275800-6690, Used (see photos). Please give us a call, send an email, or text us. We ship everywhere., Serial#: N/A, Core... ConditionUsedFits To Make(s)GMCFits To Model(s)C8500Will Fit Year(s)2008Part Number25841077Stock NumberGM-0749-20 MLS Number13725061CategoryEngine Control Modules (ECM) Last Updated7/29/2025 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info