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Replacement Hardware kit for 20-133 & 20-140

Replacement Hardware kit for 20-133 & 20-140

Part # 97-172 Be the first to write a review
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Kit contains the following replacement parts: Qty 1 - Spacer to Passenger's Side Head Bolt - M10 x 1.5 x 30 Qty 3 - A/C Compressor Bolts - M8 x 1.25 x 100 Qty 2 - Passenger's Side Bracket to Spacer Bolts - M8 x 1.25 x 30 Qty 1 - Tensioner Assy to Pass Side Bracket Bolt - M10 x 1.5 x 35 Qty 1 - Idler Pulley to Pass Side Bracket Bolt - M10 x 1.5 x 35


  • Genuine Holley Quality Parts

About Holley

Holley Performance Products has been the undisputed leader in fuel systems for over 100 years. Holley's products include carburetors, fuel pumps, fuel injection, intake manifolds, and much more. From start to finish, Holley has the parts to make your dream a reality.

Brand Holley
Emission Code5
EngineGM Small Block Gen III/IV (LS Based)
Product TypeHardware Kit
WarrantyLimited 90 Day
Part Number97-172

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.

Bolts that come with the spacer kits (21-1, 21-2, & 21-3) are not sold separately.
Limited 90 Day: See Details

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    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

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