Serpentine Belt. This part generally fits GMC vehicles and includes models such as Astro with the trims of D9K042 Tractor Truck - High Tilt,D9K042 Tractor Truck - Low Tilt,D9K064 Straight Truck - High Tilt,D9K064 Straight Truck - Low Tilt,D9K064 Tractor Truck - High Tilt,D9K06 4 Tractor Truck - Low Tilt,D9L042 Straight Truck - Low Tilt,D9L042 Tractor Truck - High Tilt,D9L042 Tractor Truck - Low Tilt,D9L06 4 Tractor Truck - High Tilt,D9L064 Tractor Truck - Low Tilt.
