Description
Review this item in the context of the repair, installation access, nearby parts, and the result the completed job is intended to achieve.
OLIMPOCICLI – C3 68-82 Corvette Headlight Vacuum Actuator and Wiper Door Vacuum Actuator Relay Fits: All 1968-1982 Corvettes
Compatibility: Fits for all 1968-1982 Chevrolet C3 Corvette
Original GM #: 5638427
Package Includes:1* Headlight Vacuum Actuator
Installation Instructions:
1. Find the location for the headlight relay under the hood between the headlights. The wiper door vacuum relay location is under the rear right-hand fender well or the left side of the firewall
2. Mark the placement of the hoses so they can be re-connected later. The original hoses had striping to match the color coded dots on the original relay. The replacement valve is initialed and color-coded for ease of hose re-installation
3. Unbolt the old relay and replace it with the new one. Re-connect the hoses in their proper positions. An extra filter has been provided as a spare. These filters can also be cleaned by using soap and water only
Car years: 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982
Note: 1968 Corvettes need 1 for the Wiper Door and 1 for Headlights. 1968 – 1972 Corvettes need 1 for the Wiper Door and 2 for Headlights. 1973 – 1982 Corvettes need 2 for the Headlights
Vehicle information
Available fitment details
Listing compatibility notes
- About this item 【Compatibility】Fits for all C3 1968 through 1982 Corvettes 【Replacement OE Number】5638427 【Function】Replace the faulty old actuators and restore functionality to your headlights.
Fitment data is provided as a buying aid. Verify the listing against your vehicle and existing part before ordering.
Repair scenarios, installation, companion parts, and use outcomes
Buying guidance
Quick decision
Review this headlamp in the context of the repair and the surrounding components.
Repair scenario
- Identify the symptom and confirm that this is the component required by the repair.
- Inspect nearby connectors, fasteners, and mating surfaces before installation.
Installation notes
- Use the listing instructions when present and follow the vehicle service procedure.
- Professional installation may be appropriate when the repair requires special tools or calibration.
Companion parts
- Inspect nearby fasteners, connectors, seals, fluids, and wear items before starting the repair.
- Use the service procedure and the visible package contents to identify any additional parts or tools required.
Before you buy
- Compare the listing title, photos, package contents, and specifications with the part being replaced.
- Confirm vehicle compatibility and installation requirements before ordering.
Customer feedback
Ratings and written reviews
4.2 / 5
36 source ratings
Source: Amazon. Imported marketplace feedback is shown for product research and is not a review of a purchase made on this website.
Moises Camacho –
Liked It A Lot
chevy –
Works slower than the original and it has no filter but it does not leak.
Harold Caldwell –
Nice quality. One arrived with a faulty internal diaphragm so it won’t work the headlight. Hoping it’s just a one time issue!
Collin Martin –
Ended up ordering four to find two that actually worked. Sent the other two back.
Fernando –
1 out of 2 worked, had to send one back due to malfunction; would not hold vacuum; since replaced it appears to be working properly; reason for giving it a 3-star; vette 74
Shadow Puppet –
Rebuilding headlight mechanisms on a 76 stingray. I rebuilt the actuators and replaced the actuator control valves. After that work, headlights work perfect. I purchased both the rebuild kit and the actuator valves from this company and everything arrived and worked great!
Jason Neelands –
Excellent They looks exactly like the factory part looked when new. Works flawlessly headlight raise and lower smoothly.
Steven scrivener –
Part fit and worked
Maarten Martens –
Very well packaged. Did a complete vacuum test, ordered 2, both worked correctly. Ordered a lot from other vendors, those were all broken.This vendor is recommended.