This 1957 Chevrolet Bel Air Heater Underdash Defrost Duct is an original used GM part. The duct attaches to the underside of the dash and is used for defrosting the windshields. The part has been media blasted and given a black primer.
Fits: Belair, Bel Air, 210, 150
Fits: Hardtop, Sedan, Convertible, Wagon