1978 GMC K25 Extended Cab Pickup Parts & Accessories

Our catalog lists 7 parts for the 1978 GMC K25 Extended Cab Pickup, sorted into 4 categories. This car comes in 4 versions: 4.8L–7.4L petrol engines from 121 to 208 hp, pickup body, all-wheel drive.

The largest categories are Engine (4), Accessories (1) and Axle Mounting/ Steering/ Wheels (1). Every part below is matched to the 1978 GMC K25 Extended Cab Pickup by vehicle ID, so the fitment shown on each card applies to this car specifically.