OER Parts offers a wide selection of Oil System & Parts for your 1989 Chevrolet Truck. OER Parts offers 1989 Chevrolet Truck Bypass Valves, 1989 Chevrolet Truck Dipsticks and Tubes, 1989 Chevrolet Truck Filter Adapters, 1989 Chevrolet Truck Oil Coolers, 1989 Chevrolet Truck Oil Filters, 1989 Chevrolet Truck Oil Pan Baffles, 1989 Chevrolet Truck Oil Pans, 1989 Chevrolet Truck Oil Pickup Tubes, 1989 Chevrolet Truck Oil Pumps, and 1989 Chevrolet Truck Oil Senders.