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 - Base Gaskets

111 products
Seal the deal with precision-fit gaskets designed for leak-free power.
Brand Show all Brand
Vehicle Type Show all Vehicle Type
Price
  • -
Show all Price
Vehicle Fitment Combos Show all Vehicle Fitment Combos
26% Off
Cometic Gasket C8505 Base Gasket - 77mm Bore
$32.04
$32.04
$43.27
Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct and engineered for specified application...
Vertex 817651 Ignition Cover Gasket
$18.31
$18.31
Vertex gaskets are hand-selected to outperform OEM materials on imperfect surfaces. High-performance Interface MicroPore gasket material is utilized where applicable. Made in USA.Vehicle Fitment:19...
Wiseco W5496 Base Gasket - Fiber - 66.00-74.00mm
$20.01
$20.01
Premium materials. Produces the best sealing technology available. Exceeding OEM standards.Vehicle Fitment:1983 Kawasaki KZ1000A/J 1983-1984 Kawasaki KZ1000C/P Police 1983 Kawasaki KZ1000R Lawson R...
Vertex 817523 Ignition Cover Gasket
$18.31
$18.31
Vertex gaskets are hand-selected to outperform OEM materials on imperfect surfaces. High-performance Interface MicroPore gasket material is utilized where applicable. Made in USA.Vehicle Fitment:19...
Cometic Gasket C10194 Base Gasket - .014in. - 4.320in. Big Bore
$40.31
$40.31
2 pack. Material - Viton-Coated Steel. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct ...
Cometic Gasket C10177-010 Base Gasket - .010in.
$41.74
$41.74
2 pack. Material - Viton-Coated Steel. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct ...
Cometic Gasket C10195 Base Gasket - .014in. - 4.500in. Big Bore
$40.31
$40.31
2 pack. Material - Viton-Coated Steel. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct ...
Cometic Gasket C9893 Cylinder Base Gasket - Fiber - Standard Bore - .031in.
$36.94
$36.94
H-D #16776-48. 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 Harley Dav...
Cometic Gasket C9553 Base Gasket
$40.31
$40.31
Sold in packs of 2. Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide. Materials may vary depending on what is correct and engineered for ...
James Gasket 16776-63-X1 Cylinder Base Gasket - Metal with Rubber Bead - .020in.
$55.19
$55.19
63-65 Shovelhead with outside oilers cylinder base gaskets (front and rear). Genuine James gaskets, seals and O-rings are made to last. Made in the USA.Vehicle Fitment:1963-1964 Harley Davidson FL
James Gasket 16777-66-X Metal Base Gasket - 3 5/8in. Big Bore - .032in.
$51.44
$51.44
U.S. Patent #5,615,898 and #363,979. Genuine James base gaskets feature a steel base with silicone beading on both sides. Will not become brittle or split during assembly. Requires no gasket seale...
James Gasket 16770-66-S Head/Base Gasket Kit - 3 5/8in. Big Bore - .032in. Blue Teflon Head Gaskets
$46.81
$46.81
Genuine James kit includes matching head and base gaskets and O-rings where applicable. Made in the USA.Vehicle Fitment:1966-1969 Harley Davidson FLFB Electra Glide 1970-1984 Harley Davidson FLH El...
James Gasket 16777-66-SX Metal Base Gasket - 3 5/8in. Big Bore - .020in.
$51.44
$51.44
U.S. Patent #5,615,898 and #363,979. Genuine James base gaskets feature a steel base with silicone beading on both sides. Will not become brittle or split during assembly. Requires no gasket seale...
James Gasket 16776-63-XF Foamet Base Gasket
$53.28
$53.28
Genuine James Foamet product line features an aluminum core coated on two sides with expanded nitrile rubber, then coated with a silicone release coating to ensure a positive seal with excellent re...
James Gasket 16776-48-XF Foamet Base Gasket
$53.28
$53.28
Genuine James Foamet product line features an aluminum core coated on two sides with expanded nitrile rubber, then coated with a silicone release coating to ensure a positive seal with excellent re...
James Gasket 16774-96 Metal Base Gasket - Standard Bore
$55.19
$55.19
Sold in pairs. U.S. Patent #5,615,898 and #363,979. Genuine James base gaskets feature a steel base with silicone beading on both sides. Will not become brittle or split during assembly. Requires ...
James Gasket 16774-96-XT1 Cylinder Base Gasket - .016in. Rubber Coated Metal with Bead
$55.19
$55.19
Sold in pairs. Genuine James gaskets, seals and O-rings are made to last. Made in the USA.Vehicle Fitment:1996-2019 Harley Davidson XL1200C Sportster 1200 Custom 2016-2020 Harley Davidson XL1200CX...
James Gasket 16774-96-XT2 Cylinder Base Gasket - .010in. - Rubber Coated Metal with Bead
$51.44
$51.44
Sold in pairs. Genuine James gaskets, seals and O-rings are made to last. Made in the USA.Vehicle Fitment:1996-2019 Harley Davidson XL1200C Sportster 1200 Custom 2016-2020 Harley Davidson XL1200CX...
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