View 1 Photo View 0 Videos 2001 GMC T6 Engine Wiring Harness Recently Updated $1,500 USD Complete Engine Wiring Harness for CAT 3126 in Good Condition. Call DTI Trucks for More Information and Shipping Quote. ConditionUsedFits To Make(s)GMCFits To Model(s)T6Stock Number70073 MLS Number13359868CategoryEngine Wiring Harnesses Last Updated4/9/2026 LocationWheat Ridge, CO, US Sold ByDTI Truck Parts (833) 614-___ SHOWNUMBERCall Seller Email Seller Save More Info