What is the thickness of this head gasket?

This S&S Cycle head gasket is .045 inches thick. This is the stock dimension and is designed to work with your existing cylinder head and piston setup.

What does 'Twincooled' mean for this gasket?

The 'Twincooled' designation means this gasket is designed to work with engines that utilize liquid cooling in conjunction with air cooling. It ensures a proper seal for the cooling passages.

Does this gasket come with any hardware?

This product listing is for the head gasket only. Any necessary mounting hardware or additional sealing components would need to be purchased separately.

S&S Cycle Head Gasket .045in Layered Steel 900-0862

Name: S&S Cycle 1999+ BT .045in Stock Bolt Pattern Head Gasket
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-1999-bt-045in-stock-bolt-pattern-head-gasket-t14-661869
Price: 92.92 USD
Availability: BackOrder

S&S Cycle 1999+ BT .045in Stock Bolt Pattern Head Gasket

$92.92

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.

Fits 1999+ Big Twin models. This .045in layered steel head gasket is a direct replacement for your stock gasket.

Key Features

Fits 1999 and later Big Twin Harley-Davidson models.
Layered steel construction for reliable sealing.
Measures .045 inches thick, matching stock dimensions.
Uses the stock bolt pattern for a direct fit.
Designed for Twincooled engine applications.

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Will this fit your vehicle?

Product Details

When you're rebuilding the top end of your 1999 and later Big Twin motorcycle, you need a head gasket that's built to seal properly. This gasket from S&S Cycle is a layered steel design, measuring .045 inches thick, and it uses the stock bolt pattern for a direct fit. It's designed to work with Twincooled engines, ensuring a solid seal for your cylinder heads.

Layered steel construction offers good sealing performance and durability for the high pressures found in an engine's combustion chamber. The .045 inch thickness is the stock dimension, meaning it's designed to work with your existing cylinder head and piston configurations without changing compression ratios. This makes it a straightforward replacement part for your engine build or repair.

This gasket fits a range of Harley-Davidson models, including the FLHR Road King, FLHTCU Electra Glide Ultra Classic, and FLHX Street Glide from 2014-2016. Make sure to check the full fitment list to confirm it's the right part for your specific bike.