This listing is for a 1965 Impala AC recirculation door control valve. This valve mounts to the top of the inside heater box and is actuated by Air conditioning control cable. This valve will need to be rebuilt or cleaned to be operational. The piston moves freely, but the port is blocked and will not allow air flow. This is a original GM part and it is a core for rebuild. It may fit other GM Cars, but it was discontinued and removed from our 1972 GM parts books.