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Gaskets and Gasket Kits

When installing new parts or servicing an engine, reliable gaskets, seals, and o-rings can be one of the most important elements on any job. Gaskets which seal and perform reliably are essential; no one wants to suffer avoidable leaks and performance loss. Zipper’s Performance Products sells gaskets and gasket kits from notable manufacturers like Cometic®, James®, and S&S® for all Haley-Davidson® engine types. Zipper’s Performance stocks most all gaskets, seals, and o-rings individually for 1966-up Big Twins and 1957-up Sportster® engines. (Individual parts are available by phone or email only.)
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  1. Be the first to review this product

    As low as: $15.50

    Cometic® "EST" Gasket Sets for EVO Sportster® Engines - EST gaskets are used in critical sealing surfaces such as rocker box and cylinder base gaskets. Head gaskets included with these kits are Cometic’s ‘MLS’ ("Multi-Layer Steel’) gaskets. The balance of components included with these kits are made from the highest quality materials to ensure that your engine stays leak-free.
  2. Be the first to review this product

    As low as: $7.99

    James® Pushrod Cover Re-Sealing Kits are perfect for re-sealing telescoping pushrod covers. Zipper's Performance stocks most all gaskets, seals and o-rings individually. Contact Us with your specific needs!
  3. Be the first to review this product

    As low as: $42.49

    Choose a full top end gasket kit if you’re doing headwork along with your cam installation or a cam-change-only kit for bolt-in cam installations that don’t require head removal (includes cam, tappet, rocker lid gaskets and pushrod o-rings). Quality gaskets from James® Gaskets.
  4. Be the first to review this product

    As low as: $23.25

    AFM (Aluminum Foamet Material) Gaskets have a chemically blown, compounded nitrile synthetic foam-like rubber bonded to an aluminum core. AFM material does not require gasket sealers or silicone bead.
  5. Be the first to review this product

    As low as: $3.00

    In many hi-compression or big inch engines, head gaskets don’t do an adequate job of sealing combustion at cylinder and head. The solution is machine the cylinder to accept an O-ring in place of the gasket. Special Viton O-rings are used in this case. Sold Each. Zipper's Performance stocks most all gaskets, seals and o-rings individually. Contact Us with your specific needs!
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