C3 Corvette Headlight/Windshield Wiper Door Actuator Relay Valve

1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982

This part is a new, reproduction C3 Headlight/Windshield Wiper Door Actuator Relay Valve which can be installed on any of the following Corvette models:

Year	Body & Trim
1982	Base, Collector’s Edition
1981	Base
1980	Base
1979	Base
1978	Base, Indianapolis 500 Pace Car, Silver Anniversary Edition
1977	Base
1976	Stingray
1975	Stingray
1974	Base
1973	Base
1972	Base
1971	Base
1970	Base
1969	Base
1968	Base

 

This C3 Corvette Headlight/Windshield Wiper Door Actuator Relay Valve is perfectly compatible with all C3 Corvettes ranging from 1968 through to 1982. Each listing includes two top-tier vacuum relay actuators designed for headlight or wiper operation.

Each unit’s metal parts have undergone a specialized treatment to stave off corrosion, assuring long-term resilience and endurance.

It is crucial to keep your 1968 to 1982 headlamps and wiper door functioning optimally, and the vacuum relay forms a key component in these systems. Often, failures or malfunctions of your headlight bucket or 1968 to 1972 wiper door systems can be traced back to this crucial element. Replace your flawed units with our top-notch, faithfully reproduced Headlight/Windshield Wiper Door Actuator Relay Valve.

Kindly note that this item is a reproduction and is no longer available from GM. There are two known manufacturers of these valves, and we proudly carry the superior product. Our valves, in production for over 20 years, meet or exceed original factory specifications. The distinguishing feature is the beveled metal air tube connection, unlike the straightforward, unfinished cut of lower-quality valves.

Our Headlight Actuator Relay is designed for seamless integration between the headlight assemblies. It expertly controls the vacuum circuits, which enable the extension or retraction of the headlight actuator to open or close the headlights. This versatile Vacuum Relay Valve also regulates the operation of the 1968-1972 Windshield Wiper Door.

For those needing a single valve, please refer to our other listings. However, this listing offers a pair of C3 Headlight Relays for comprehensive coverage of both the left and right headlights or simultaneous use on one headlight and the windshield wiper door.

NOTE: 1968 to 1969 models utilized one relay for the headlights near the hood’s center and one for the right fender wipers. Between 1970 and 1972, two relays were used for the headlights and one on the firewall or fender well for the wiper door. The 1973 to 1982 models employed a total of 2 relays for the headlights, as the windshield wiper door had been phased out.

 

GM Part Number: 5638427

Weight	1.10 lbs
Dimensions	4.30 × 4.30 × 4.20 in
Generation	C3 (1968-1982)
Year	1968 ('68), 1969 ('69), 1970 ('70), 1971 ('71), 1972 ('72), 1973 ('73), 1974 ('74), 1975 ('75), 1976 ('76), 1977 ('77), 1978 ('78), 1979 ('79), 1980 ('80), 1981 ('81), 1982 ('82)
Body Type	Convertible (1YY67), Coupe (1YY07)
Product Condition	New (Reproduction)
Vehicle Side	Driver Side/Left Hand Side, Passenger Side/Right Hand Side