OER Parts offers a wide selection of Cooling System Components for your 1978 Pontiac Firebird. OER Parts offers 1978 Pontiac Firebird Molded Radiator Hoses, 1978 Pontiac Firebird Upper Radiator Hoses, 1978 Pontiac Firebird Lower Radiator Hose, 1978 Pontiac Firebird Water Pump Bypass Hose, 1978 Pontiac Firebird Oil Cooler to Radiator Hose, 1978 Pontiac Firebird Throttle Body to Radiator Coolant Hose, and 1978 Pontiac Firebird Universal Engine Coolant Plumbing Set.