1978-1982 Corvette C3 Spare Tire Lock Bolt Assembly

1978-1982 C3 Spare Tire Lock Bolt Assembly

Secure Your Spare Tire the Right Way – Complete Lock Bolt Assembly for Reliable Retention

Keep your Corvette safe and road-ready with this OE-style Spare Tire Lock Bolt Assembly. Designed to replace worn or missing hardware, this complete kit ensures your spare tire is properly secured to the carrier for confidence on every drive.

Fits the Following Corvette Models

• 1978–1982 C3 Coupes and Convertibles

Material/Finish

• Hardened steel construction

• Zinc-plated finish for corrosion resistance

• OE-style hardware for authentic restoration fit

Dimensions

• Overall length: 8 13/16" (224 mm)

• Lower threaded section: 4 15/16" (125 mm)

• Upper shaft length: 4 13/16" (122 mm)

• Thread size: 7/16"-14

Features and Benefits

• Complete kit includes lock bolt, nut, spacer, bracket, split pin, and hardware

• Direct replacement design restores original factory fitment

• Prevents tire movement, vibration, or loss during driving

• Corrosion-resistant finish provides long-lasting durability

• GM reference part number not provided

Because Details Matter

Even the smallest components make the difference between a correct restoration and a compromise. This lock bolt assembly secures your spare exactly as GM intended — keeping your Corvette both authentic and dependable.

Parts We Recommend

• 

  1969-1982 Spare Tire Lock Large Cap Large Hole B Late Keys

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

• 553051
• 686420073987
• SP09C