Replacement vacuum actuator relay used on 1968-1982 headlight vacuum systems. This relay mounts between the headlight assemblies. Controls vacuum going to actuator canister to raise & lower headlight doors.
Note: Vacuum hoses attach to the relay from the outboard ports to the inside. The center port is longer and original hose installed on the center port was not installed as deep as the outboard ports.
|Model Year||1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982|
- OE GM PART #: 5638427
*GM part # provided for lookup purposes only.