What material are these base gaskets made from?

These S&S Cycle base gaskets are made from graphite. Graphite is a common material for engine gaskets because it can withstand high temperatures and maintain a good seal under pressure.

What does the .018in measurement refer to?

The .018in measurement refers to the thickness of the gasket. This specific thickness is important for achieving the correct cylinder head squish and compression ratio when rebuilding your engine.

Does this gasket kit include everything needed for installation?

This kit includes two base gaskets. It is recommended to consult the service manual for your specific Harley-Davidson model to ensure you have all other necessary components and fluids for the installation.

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Est. 1957

S&S Cycle 84-99 BT .018in Base Gasket - 2 Pack

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Specifications

Brand: S&S Cycle
Part #: 930-0099
UPC: 930-0099

S&S Cycle 84-99 BT .018in Base Gasket - 2 Pack

Name: S&S Cycle 84-99 BT .018in Base Gasket - 2 Pack
Brand: S&S Cycle
Price: 18.14 USD
Availability: InStock

$18.14

On Backorder — Expected to ship by May 7, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

S&S Cycle .018 inch base gasket kit for 1984-1999 Big Twin Harley-Davidson models. Direct fit.

Key Features

Fits 1984-1999 Big Twin Harley-Davidson models.
Gasket thickness is 0.018 inches.
Constructed from graphite for good sealing performance.
Comes as a 2-pack for your convenience.

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Will this fit your vehicle?

Product Details

This is a 2-pack of S&S Cycle base gaskets, specifically designed for 1984-1999 Big Twin Harley-Davidson engines. These gaskets are 0.018 inches thick and made from graphite, a material known for its ability to handle heat and provide a good seal in engine applications.

When you're rebuilding the top end of your engine or replacing the base gaskets, using the right thickness is crucial for proper cylinder head sealing and compression. These S&S Cycle gaskets are well-built and fit right, ensuring a solid seal for your Big Twin.