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1966-1996 Corvette C2-C4 Turn Signal or Hazard Flasher - Heavy Duty Metal 90491392

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Item ID: 622-036
GM Part #: 90491392
Availability: In Stock - Ships today if ordered by 3 PM CT
Only 2 Left, Order Soon!
Fits Years:
  • 1966-1967
  • 1968-1982
  • 1984-1996
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  • Description

1966-1996 C2-C4 Turn Signal or Hazard Flasher - Heavy Duty Metal 90491392 - OEM Number(s) (90491392)

Restore Flashing Functions with Confidence
If your turn signals, hazard lights, or alarm flashers have failed, this 1966–1996 Corvette Heavy Duty Flasher is the answer. Designed to match the OE-style two-terminal configuration, this unit restores rhythmic blink control in your C2, C3, or C4. It’s compatible with both factory incandescent bulbs and updated systems using proper load resistors. With a durable metal housing and direct-fit terminals, it installs in seconds and is built to last.

Features
• Fits 1966–1967 C2 Corvettes
• Fits 1968–1982 C3 Corvettes
• Fits 1984–1996 C4 Corvettes
• Replaces factory hazard, turn signal, or alarm flasher
• Heavy-duty design with durable metal canister
• Two-terminal plug-in connection
• Works with stock or upgraded lighting systems
• Supports 1968–1980 Corvette alarm system function

Dimensions and Weight
• Overall height: 1-1/2 inches
• Diameter: 1-3/4 inches
• Two-prong metal housing

Tech Notes
• Installs under dash or at fuse block depending on model year
• Compatible with LED bulbs when resistors are properly installed

Because Details Matter
This flasher relay restores more than just function—it restores safety and confidence in your signaling system. Whether you're running original bulbs or have upgraded lighting, this direct-fit metal can flasher ensures proper blink rate and reliability across C2, C3, and C4 generations.

Also known under these part numbers: (For reference only)

  • 00491391
  • 020637300229
  • 552
  • 90491392
  • SF552