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Base Insulator

For Model 4165โ„ข and Model 4175โ„ข and Quadra-Jet Phenolic

Part # 108-37 Be the first to write a review

Base Insulator

Estimated Ship Date: 04/25/2025
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MSRP $78.95
$62.54
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5

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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Base Gasket

Features:

  • 2 3/8" Secondary
  • 1 3/8" Primary
  • Includes Carb Studs
  • Phenolic
  • Fits Holley Model 4165™, Model 4175™ and Quadra-Jet
  • 11/16" Thick

About Holley

Holley Performance Brands is the undisputed leader in carburetors, fuel pumps, fuel injection, intake manifolds, fuel injection, and fuel systems.

Brand Holley
Carburetor TypePerformance
CategoryAir and Fuel Delivery
Emission Code5
Grade TypePerformance
MaterialFiber
Model4165/4175
Mounting Hole Quantity4
Part TypeCarburetor Spacer
Product TypeBase Gasket
Spacer FinishBlack Phenolic
Sub CategoryHardware, Fasteners and Fittings
Thickness11/16 IN
WarrantyLimited 90 Day
UPC090127015933
Part Number108-37
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Limited 90 Day: See Details
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    *Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.