1977-1978 C3 Headlight Dimmer Switch - OEM Number(s) (07829781)
Light the Way with Confidence: 1977–1978 Corvette Headlight Dimmer Switch
If your low beams aren’t flipping to high beams—or staying there—it might be time to replace your Corvette’s headlight dimmer switch. This 1977–1978 Corvette Headlight Dimmer Switch is a direct-fit solution that restores smooth, responsive lighting control, just like the day your C3 rolled off the line.
Why Your Corvette Needs This Dimmer Switch
Your Corvette’s headlight dimmer switch isn’t just a convenience—it’s essential for nighttime safety. Located on the steering column, this switch toggles between high and low beams. Over time, electrical contacts wear out, causing flickering, dimming, or total headlight failure. This high-quality replacement restores reliable functionality to your lighting system, ensuring visibility on every evening cruise or country road blast.
Product Highlights
-
Model-Specific Fit: Designed exclusively for 1977–1978 Corvette C3 models
-
OEM-Correct Performance: Restores full functionality to your high/low beam toggle
-
Plug-and-Play Installation: No splicing or guesswork—connects directly to factory wiring harness
-
Reliable Contacts: Internal electrical terminals are built for durability and consistent performance
-
Exact Replacement: Replaces GM part number 07829781 for authentic fit and function
Specifications
-
Fits: Chevrolet Corvette C3 (1977–1978)
-
OEM Part Number: GM #07829781
-
Manufacturer Part Number: PYU270
-
Material: Molded polymer body with metal contacts
Installation Made Easy
No special tools required—simply unplug the old switch, plug in the new one, and restore your high/low beam functionality in minutes. Ideal for DIYers or weekend garage warriors.
Drive Into the Night With Confidence
Don’t leave your visibility to chance. A faulty dimmer switch is more than an inconvenience—it’s a hazard. This OEM-style replacement puts control back at your fingertips, right where it belongs.
Also known under these part numbers: (For reference only)
- 07829781
- 25-120657-1
- 30031
- 593065
- 840144702022
- D816
- PYU270