New to Powersport Superstore? Try our Year-Make-Model search and find the right parts for your ride by clicking "My Garage" on the upper-right! ➡

Engine - Gaskets & Seals

6967 products
Seal the deal with precision-fit gaskets designed for leak-free power.
19% Off
Cometic Gasket C9104 EST Top End Gasket Kit
$61.13
$61.13
$75.55
H-D#17030-72AL. EST (Extreme Sealing Technology) gasket kits include embossed stainless steel head, base and rocker gaskets covered with a proprietary rubber material. Head gasket material allows ...
23% Off
Cometic Gasket C9133 EST Complete Gasket Kit - 3-13/16in. Bore with .040in Head Gasket
$156.50
$156.50
$202.60
Every gasket in these kits uses the best materials possible for its intended application. Multi-Layer Steel (MLS) head gaskets. Steel Viton-coated base gaskets. Blue Viton valve stem seals. Aluminu...
23% Off
Cometic Gasket C9154 EST Complete Gasket Kit - 3 5/8in.
$190.38
$190.38
$246.70
H-D #17029-70a. Every gasket in these kits uses the best materials possible for its intended application. Multi-Layer Steel (MLS) head gaskets. Steel Viton-coated base gaskets. Blue Viton valve st...
5% Off
Cometic Gasket C9207 Cylinder Base Gaskets - Front and Rear - Standard Bore(2pk)
$31.71
$31.71
$33.55
H-D# 16776-63. High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehicle Fitment:1966-1969 Harley Dav...
23% Off
Cometic Gasket C9186 EST Complete Gasket Kit - 103in. Big Bore
$221.13
$221.13
$287.65
Every gasket in these kits uses the best materials possible for its intended application. Multi-Layer Steel (MLS) head gaskets. Steel Viton-coated base gaskets. Blue Viton valve stem seals. Aluminu...
19% Off
Cometic Gasket C9767 EST Top End Gasket Kit - Big Bore - 3-5/8in. Bore
$142.49
$142.49
$176.35
H-D#17026-91A. EST (Extreme Sealing Technology) gasket kits include embossed stainless steel head, base and rocker gaskets covered with a proprietary rubber material. Head gasket material allows h...
Cometic Gasket C9394 Oil Pump Cover Gaskets (10pk)
$15.26
$15.26
H-D#26257-50A. Qty: 10. High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehicle Fitment:1950 Harley...
Cometic Gasket C9584 Pushrod Tube O-Ring Kit
$12.25
$12.25
High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehicle Fitment:1979-1981 Harley Davidson FLH Electr...
Cometic Gasket C9321 Generator Gaskets (10pk)
$12.81
$12.81
High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehicle Fitment:1958-1964 Harley Davidson FL 1958-19...
22% Off
Cometic Gasket C9768 EST Top End Gasket Kit - 3 13/16in. Bore
$134.25
$134.25
$173.20
EST (Extreme Sealing Technology) gasket kits include embossed stainless steel head, base and rocker gaskets covered with a proprietary rubber material. Head gasket material allows heat to be drawn ...
Cometic Gasket C9529 Countershaft O-Ring
$15.26
$15.26
Sold in packs of 10, priced each. H-D# 11115. High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehic...
Cometic Gasket C9354 Clutch Release Lever O-Ring
$10.47
$10.47
Sold each. OEM #37101-84. High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehicle Fitment:1986 Harl...
Cometic Gasket C9384 Oil Pump Cover Gaskets (10pk)
$16.37
$16.37
H-D#26276-92. Qty: 10. High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehicle Fitment:1994-1998 Ha...
Cometic Gasket C9392 Oil Pump Gasket And O-Ring (2)
$20.13
$20.13
H-D# 26258-68D. Sold each. Oil Pump Cover To Body. Qty 10.Vehicle Fitment:1968-1969 Harley Davidson FLFB Electra Glide 1970-1980 Harley Davidson FLH Electra Glide 1968-1969 Harley Davidson FLHB El...
Cometic Gasket C9521F Shifter Adapter Bases - AFM
$14.03
$14.03
10 pk, priced each. OEM# 34565-52. Aluminum Foamette Material (AFM) gaskets feature an aluminum core and a chemically blown, compounded nitrile synthetic rubber coating that is bonded to the outsid...
Cometic Gasket C9355 Double-Lip Points Seal
$17.87
$17.87
Sold in packs of 5, priced each. H-D# 11124-DL. High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Veh...
21% Off
Cometic Gasket C9896 Head Gasket - MLS - Standard Bore - .030in
$101.38
$101.38
$129.10
Multi-Layer Steel (MLS) gaskets feature two outer Viton-coated embossed spring steel layers with an inner steel layer to provide additional support. 2-pk. OEM #:17626-01K. High-quality products fo...
Cometic Gasket C9393 Cometic Oil Pump Body To Case (10)
$16.14
$16.14
41-67 OHV Big Twin. High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehicle Fitment:1948-1950 Harle...
Secure, Trusted, and Encrypted

Protected by industry-leading 256-bit SSL encryption and backed by Shopify’s PCI DSS–compliant infrastructure. Every page, click, and transaction is encrypted and monitored for threats — so you can shop with confidence knowing your data stays protected.

Parts for Every Machine

We stock aftermarket parts, gear and accessories for motorcycles, ATVs, UTVs, snowmobiles, personal watercraft, and even performance cars — all backed by expert support and live inventory.

Real-Time Fitment Accuracy

Search by Year, Make, and Model with confidence. Our proprietary vehicle fitment system ensures you’re only shown what fits — no guesswork, no returns — just parts that fit.

Fast, Trackable Shipping

We ship from over 20 U.S. warehouses — often same or next business day. Every order includes tracking and transparent fulfillment updates from start to finish, all processed through a secure, encrypted checkout.

Quick Links

Ride With Us. Stay Connected.

Follow us for real-time fitment updates, gear drops, and pro tips from the garage. No spam, just parts, tech, and news for riders like you.

Your Garage

Add a Vehicle