View 0 Photos View 0 Videos 2001 GMC C6500 Cab Wiring Harness $750 USD (USED) GMC C6500 Engine Model: CAT 3126 From: CAB Transmission Type: FS5406A To: ENIGNE ConditionUsedFits To Make(s)GMCFits To Model(s)C6500Stock Number26040207 MLS Number14515586CategoryCab Wiring Harnesses Last Updated7/31/2026 LocationDes Moines, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info