1968-1982 C3 Headlight and Wiper Door Vacuum Override Switch 5638317 - OEM Number(s) (5638317)
Regain reliable vacuum control of your headlight and wiper door systems with this direct-fit Headlight and Wiper Door Vacuum Override Switch for 1968–1982 C3 models. This high-quality reproduction restores manual override functionality, helping ensure your vacuum-actuated components operate properly when you need them most.
Because Details Matter
• Fits all 1968–1982 C3 models with vacuum-operated headlights and wiper doors
• Provides manual override for headlight and wiper door vacuum system
• Direct replacement for GM part number 5638317
• Installs easily using original mounting provisions
• Durable construction ensures lasting underhood performance
Dimensions and Weight
• Length: 2.5 inches
• Weight: 2 oz
Tech Notes
• GM Part Number: 5638317
• Material: Molded plastic body with internal actuator
• Country of Origin: Imported
If your headlight or wiper door system isn’t responding properly, this switch may be the missing piece. Install a fresh replacement and keep your C3 operating smoothly.
Also known under these part numbers: (For reference only)
- 25-120784-1
- 29526
- 443055
- 48236W
- 5638317
- 686420074243
- HE77