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1957-1979 Corvette C1-C3 Spark Plug Boot Heat Shields 3817657 3917664

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Item ID: 609-417
GM Part #: 3817657
3917664
Availability: In Stock - Ships today if ordered by 3 PM CT
Fits Years:
  • 1957-1962
  • 1963-1967
  • 1968-1979
$39.99
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  • Description

1957-1979 C1-C3 Spark Plug Boot Heat Shields 3817657 3917664 - OEM Number(s) (3817657,3917664)

Missing heat shields are the leading cause of burnt spark plug wires. Restore proper protection and appearance to your Corvette with this set of four spark plug boot heat shields. Designed to deflect excessive exhaust manifold heat, these factory-style shields prevent plug wire damage and ensure long-term ignition reliability. Whether you're preserving a survivor or completing a concours restoration, these shields are essential for both performance and authenticity.

Features
• Set of 4 spark plug boot heat shields
• Direct replacements for missing or damaged shields
• Prevents heat damage to plug wires
• Restores OE appearance and routing function
• Durable stamped metal construction (18 gauge)
• Polished finish for long-lasting looks
• Shields can be removed for service access as original
• Fits stock and aftermarket spark plug wires

Fits Classic Corvette Models as Follows
• 1957–1962 C1 Corvettes
• 1963–1967 C2 Corvettes
• 1968–1979 C3 Corvettes

Dimensions and Weight
• Length: 5-1/2 inches (140 mm)
• Height: 2 inches (51 mm)
• Shield panel height: 1-3/4 inches (44 mm)
• Material thickness: 0.048 inch (1.2 mm)

Because Details Matter
These shields aren’t just heat protection—they’re a vital part of correct plug wire routing and original underhood appearance. Replace your missing or rusted originals to restore factory detail and prevent costly plug wire failures.

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

  • 3817657
  • 3917664
  • 57-8300
  • 578300
  • 686420019732
  • X2582
Prop 65