What specific gaskets are included in this kit?

This S&S Cycle kit includes the necessary gaskets for your cylinder heads, the base of the cylinders, and the exhaust system. It's a comprehensive set for the top end of your engine.

What is the thickness of these gaskets?

The manufacturer specifies these gaskets at a thickness of .045 inches, which is a common size for many Big Twin applications.

What makes graphite a good material for head gaskets?

Graphite is a popular material for head gaskets because it can withstand high temperatures and pressures found in an engine. It also has a natural ability to seal well, even on surfaces that aren't perfectly smooth.

FEATURED BRAND = COVERKING CHECK OUT COVERKING NOW →

Questions? Call Us:631-982-0042

M-F 8AM-4PM ET

Trusted Since 1957

Est. 1957

1 / 2

Specifications

Brand: S&S Cycle
Part #: 90-1905
UPC: 90-1905

S&S Cycle 84-99 BT 3-1/2in Cylinder Head Gasket Kit

Name: S&S Cycle 84-99 BT 3-1/2in Cylinder Head Gasket Kit
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-84-99-bt-3-1-2in-cylinder-head-gasket-kit-t14-619321
Price: 76.75 USD
Availability: BackOrder

$76.75

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 84-99 BT 3-1/2in Cylinder Head Gasket Kit. Graphite gaskets for a solid seal.

Key Features

Fits 1984-1999 Harley-Davidson Big Twin models.
Includes head, base, and exhaust gaskets.
Gaskets are 3-1/2 inches in diameter.
Constructed from graphite for reliable sealing.
Direct fit for a range of Big Twin applications.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

About this part

Product Details

If you're working on the top end of your 1984-1999 Big Twin Harley-Davidson, this S&S Cycle 3-1/2 inch cylinder head gasket kit is what you'll need. This kit includes the essential gaskets for your cylinder heads, base, and exhaust, ensuring a proper seal when you reassemble your engine. The graphite material is known for its ability to handle heat and pressure, making it a reliable choice for these applications.

This kit is designed to fit a wide range of Big Twin models from 1984 through 1999, including popular bikes like the Electra Glide Classic, Heritage Softail, and Dyna Super Glide. The gaskets are precisely sized at 3-1/2 inches to match the bore of your engine, and the graphite construction offers a good balance of sealing performance and durability for everyday riding and performance use. Having the right gaskets on hand makes the rebuild process much smoother.