OER Parts offers a wide selection of Cooling System Components for your Chevrolet K20 Pickup. OER Parts offers Chevrolet K20 Pickup Molded Radiator Hoses, Chevrolet K20 Pickup Upper Radiator Hoses, Chevrolet K20 Pickup Lower Radiator Hose, Chevrolet K20 Pickup Water Pump Bypass Hose, Chevrolet K20 Pickup Oil Cooler to Radiator Hose, Chevrolet K20 Pickup Throttle Body to Radiator Coolant Hose, and Chevrolet K20 Pickup Universal Engine Coolant Plumbing Set.