This Fits Your 2012 GMC Sierra 1500 4.8L Vortec V8 FLEX A/T 4WD SLE Extended Cab Pickup
Full size assembly image of PICK UP BOX. EXTERIOR TRIM. (1/1)

PICK UP BOX. EXTERIOR TRIM.

6. 5 ft box side panel. "4X4". "Z71 4X4". "Z71 plus 4X4". "Z71 plus". "Z71". Chevrolet. Front. GMC. Rear.