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1988-1999 Corvette C4-C5 Headlight Motor Adjustment Knob - Override Function

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Item ID: 671-616
Availability: In Stock - Ships today if ordered by 3 PM CT
Fits Years:
  • 1988-1996
  • 1997-1999
$10.99
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1988-1999 C4-C5 Headlight Motor Adjustment Knob - Override Function

Restore Headlamp Override Function with New Replacement Knob
Missing or worn knobs can leave your C4 or C5 headlight motors without manual override capability. Our 1988–1999 Headlight Motor Adjustment Knob restores factory-style appearance and function, allowing you to manually raise or lower the headlamp doors when necessary. Designed to fit the splined shaft of original headlight motors, this black plastic knob installs easily—preserving operation without electrical input.

Fits the Following Corvette Models:
1988–1996 All Models
1997–1999 All Models

Features
• Restores manual override function to headlight motors
• Reproduction of original black plastic knob
• Fits 1/4" (6mm) splined motor shaft
• 1-7/32" (31mm) OD large side for easy grip
• 1" (25mm) taper end diameter
• 5/8" (16mm) knob width
• Allows manual raising/lowering of headlights
• Sold individually—two required per Corvette
• Simple push-fit installation on splined shaft

Dimensions and Weight
• Large side diameter: 1-7/32" (31mm)
• Taper end diameter: 1" (25mm)
• Width: 5/8" (16mm)
• Fits 1/4" (6mm) splined shaft
• Weight: 0.5 oz (14g) per knob

Tech Notes
• Provides manual headlight door operation during motor failure
• Matches factory override knob appearance and fit
• Essential for restoring full manual override function
• Two knobs required for complete car set

Because Details Matter
Restoring your Corvette’s headlight system includes manual override readiness. Our reproduction headlight motor knobs ensure you’re never stranded with stuck headlamps—preserving proper form and function.



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

  • HM1005 KNOB
Prop 65