Used 2008 GMC SIERRA 2500 PICKUP 7420 Back Search by Part Home Search GMC SIERRA_2500_PICKUP 7420 Used 2008 GMC SIERRA 2500 PICKUP 7420 No parts found. Please click the inquire button for order assistance or change filter selection. Part Description Select LEFT Inquire$50.00Part Type: EXHAUST MANIFOLDPart Numbers: 12637647Details: 6.6,LHStock: 7420Mileage: 88000Tag: 0000028786VIN: 1GTHK29678E128721SKU: WY01135235Part Grade: A VIEW DETAILS Warranty Options:Choose Warranty1 Year Parts & Labor - $15.00 Add To Cart