Relays are usually the first part to go bad in a Corvette's C3 headlight / wiper door vacuum system. Our relays are reproduced to factory specifications.
1968 Corvettes used 1 for the wiper door and 1 for the headlights.
1968 - 1972 Corvettes used 1 for the wiper door and 2 for the headlights.
1973 - 1982 Corvettes used 2 for the headlights.
NOTE: Before returning, please be sure to check all areas of the vacuum system. Actuators, hoses, hose connectors, valves
and reservoir tanks.
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I bought this for a diffrent vehicle for a selectable vacuum source. It works exactly how I wanted it to work. Quality looks great. Operation is great with no vacuum leaks, and product shipping was on time
Probably the most significant problem one will have with C3 Corvettes is the questionable vacuum headlights. And although the industry is flooded with aftermarket units to fix these gremlins it all comes down to the basics "Price" and Derby has had the best prices on the required parts!
item sent on time, company very responsive, will buy from them again, pleasant to work with