Engine Gaskets, Seals & More

Offenhauser Upper to Lower Intake Gaskets

Offenhauser's upper to lower intake manifold gaskets seal your 2-piece manifolds. Their Turbo-Thrust manifolds and competition manifolds will require these gaskets to create a leak-free connection between the bottom and top casings. These replacements are made from factory-style materials and specs in a variety of configurations for precise fitment. Are your gaskets cracked or leaking? Or maybe you need to do some work that requires you to remove the base manifold. Whatever the reason, keep some upper to lower intake manifold gaskets on hand for perfect performance!

5.0 out of 5 stars ( 2 )

$32.99

On Sale

Mr. Gasket Carburetor Base Gaskets

Mr. Gasket carburetor base gaskets are made from a highly durable cellulose/nitrile/rubber composites. These synthetic high-tensile strength, high-temperature gaskets have excellent sealing properties for oil, fuel, and coolant material. Carburetor base gaskets seal using low clamping pressure, conforming to and sealing imperfections. They're also precision die-cut to ensure a proper fit. The gaskets are available in a variety of styles and thicknesses for specific carburetor flange applications.

4.64 out of 5 stars ( 136 )

$12.44

$5.44

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$22.72

Cometic Gasket Valve Stem Seals

Whether rebuilding your engine or replacing worn-out seals on your HD® or V-Twin motorcycle, Cometic offers reliable sealing solutions. These valve stem seals are produced from premium grade materials, and are made to OEM specs and tolerances, offering low friction in combination with superior seal for excellent durability. Select the seals designed for your application.

Not Yet Reviewed

$26.19

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$61.34

Mr. Gasket Ultra-Seal III Valve Cover Gaskets

Mr. Gasket offers many gasket sets for specialty racing, muscle car, and nostalgia engines. Mr. Gasket Ultra-Seal III valve cover gaskets feature a premium composite material that is a high-density, multi-polymer developed for steam, oil, and chemical resistance in high performance and industrial applications. It is perfect for sealing with low flange load, has a high-crush resistance, exceptional torque retention properties, and unrivaled resistance to blowout. Available in pairs or master packs of 10, Mr. Gasket Ultra-Seal III valve cover gaskets are for applications with intermittent operating temperatures up to 650 degrees F.

Not Yet Reviewed

$117.95

Engine Works PTFE Valve Stem Seals

Engine Works PTFE valve stem seals feature a positive fit spring to ensure a proper fit on the valve guide and prevent unwanted oil contamination of the cylinder. PTFE valve stem seals offer many benefits, including excellent chemical resistance, low friction, a wide operating temperature range, and long-lasting performance, making them ideal for demanding applications.

Not Yet Reviewed

$24.96

Pro-X Racing Parts Valve Stem Seals

Pro-X Racing Parts offers a wide range of valve stem seals for the MX, dirt bike, road bike and ATV segment. The seals are manufactured by the leading OEM factories in Japan, such as NOK and ARS. Pro-X seals are produced from premium grade materials and are made to OEM specs and tolerances, offering low friction in combination with a superior seal for excellent durability. Choose the valve stem seals designed for your powersports ride.

Not Yet Reviewed

$3.99

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$8.99

Sierra Marine Shift Rod Gaskets

Sierra supplies a wide range of OEM-equivalent parts to maintain and/or repair your watercraft, including shift rod gaskets. These gaskets are designed to meet marine-grade standards for outstanding performance, resulting in a durable, high-strength material appropriate for sealing against unwanted leaks, and minimized vibration, low distortion, and conformability over uneven surfaces. For over 50 years, Sierra has supplied the best aftermarket parts in the marine industry—so boaters can enjoy the best of times on the water. Upgrade your boat with Sierra Marine shift rod gaskets.

Not Yet Reviewed

$2.99

Cometic Gasket Rocker Cover Base Gaskets

Cometic Gasket rocker cover base gaskets are expertly crafted from advanced materials combined with the most current manufacturing processes to deliver quality sealing solutions. For Harley-Davidson® motorcycles, rocker cover base gaskets play a crucial role in preventing oil leaks, ensuring proper engine lubrication, and protecting the cylinder head, ultimately contributing to engine longevity and performance. By sealing the engine, these rocker cover base gaskets ensure oil stays where it's needed, lubricating the critical components of the engine and preventing premature wear. Select the gaskets specifically designed for your make and model.

Not Yet Reviewed

$20.33

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$104.48

Cometic Gasket Rocker Box Gasket Kits

Cometic rocker box gasket kits utilize advanced engineering and manufacturing techniques to bring you the very best seals for your bike. Their design engineers analyze the environment that your gasket will perform in, select the proper materials, and apply the appropriate technology to provide the highest performing gaskets available on the market. Why not rely on the perfect blend of technology and testing to give you the best components for your Harley®? Install a Cometic Gasket rocker box gasket kit—and spend your precious time planning where to ride.

Not Yet Reviewed

$43.89

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$73.17

Cometic Gasket Camshaft Service Kits

Cometic Gasket camshaft service kits are made from precision-cut, premium materials for a better fit and leak-free performance. These time-saving kits provide you with all the gaskets and seals you need for a cam change.

Not Yet Reviewed

$24.54

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$71.65

Cometic Gasket Top End EST Gasket Kits

Cometic Gasket top end EST gasket kits utilize their Extreme Sealing Technology. They are proven through state-of-the-art research and development processes and validated on the street and track. Their top end gasket kits include the necessary gaskets, seals, and O-rings to rebuild your top end, including embossed stainless steel head and base gaskets covered with proprietary rubber material. Kits are available without head and base gaskets.

5.0 out of 5 stars ( 1 )

$107.72

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$238.10

Cometic Gasket Head Gaskets

Cometic Gasket has engineered premium head gaskets to withstand today's high performance standards. These head gaskets are ideal for aluminum heads, aluminum blocks, and cast iron blocks. They form their gaskets out of high-strength materials such as multi-layer stainless steel and copper, which creates the ability to rebound and resist corrosion. They are designed to meet the demands of harsh sealing environments, load conditions, and various surface finishes.

5.0 out of 5 stars ( 1 )

$59.50

Cometic Gasket Tappet Cover Gaskets

Known for their quality, Cometic Gasket tappet cover gaskets for Harley-Davidson® motorcycles are a good, economical option. The primary purpose of tappet cover gaskets, also known as valve cover gaskets, is to prevent oil leaks by creating a tight seal between the engine and the valve cover to ensure proper lubrication and help prevent damage to engine components. A tight seal helps to ensure that the engine's moving parts, like valves, push rods, and rocker arms, receive the necessary lubrication, reducing wear and tear. These tappet cover gaskets also help keep out dirt and debris, protecting the engine's internal components. Select the gaskets designed for your Harley® motorcycle to keep your bike well maintained.

Not Yet Reviewed

$8.70

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$10.52

HardDrive Intake Manifold Gasket Kits

Intake manifold gaskets are some of the most important gaskets found on your engine. HardDrive intake manifold gasket kits will solve those problems of overheating, engine misfires, and decreases in power, acceleration, or fuel economy that your Harley® may be having. Quality, perfect-fit rubber gaskets from HardDrive ensure a leak-free seal.

Not Yet Reviewed

$10.76

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$17.06

Cometic Gasket Complete EST Gasket Kits

Cometic Gasket complete EST gasket kits utilize their Extreme Sealing Technology. They are proven through state-of-the-art research and development processes and validated on the street and track. Their complete gasket kits include the necessary gaskets, seals, and O-rings to rebuild your engine. Kits are available with or without head and base gaskets. Select the complete EST gasket kit designed for your application.

Not Yet Reviewed

$140.45

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$353.56

Cometic Gasket Cylinder Base O-Rings

Today's lightweight engines are producing more horsepower, higher cylinder pressures, clamp loads, and extreme temperatures. Cometic's commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance. Cometic Gasket cylinder base O-rings seal the junction between the cylinder and engine case, preventing leaks and ensuring optimal engine operation. They combine advanced materials with the latest manufacturing processes to produce cylinder base sealing solutions with the perfect fit for your motorcycle. Select the O-ring designed for your bike.

Not Yet Reviewed

$22.02

Cometic Gasket Complete Transmission Gasket Kits

Cometic is committed to providing innovative, quality gaskets while maximizing your motorcycle engine's power and performance. Their gaskets and seals have been tested on both the street and the track, as well as vigorous Dyno shakedowns, and are made from premium materials best suited to each application. Cometic Gasket complete transmission gasket kits package the proper gaskets, seals, and O-rings to service and/or rebuild your motorcycle transmission. Select the kit designed for your bike.

Not Yet Reviewed

$45.59

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$99.53

Summit Bucks

S&S Cycle V-Series Engine Gasket Kits

Whether you are rebuilding a classic or attempting to eliminate a mysterious leak, S&S Cycle V-series engine gasket kits will help you get that new-seal feel that your ride deserves. Their kits are available in various sets, allowing you to do as much or as little as you desire. No matter the project, you can find the gaskets for the job in S&S kits. They are available for various models and in varying engine level kits to fit any cycle application you wish to tackle.

Not Yet Reviewed

$116.95

Cometic Gasket Cylinder Base Gaskets

Today's lightweight engines are producing more horsepower, higher cylinder pressures, clamp loads, and extreme temperatures. Cometic's commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance. Cometic Gasket cylinder base gaskets create a tight seal between the cylinder and engine case, preventing leaks and ensuring optimal engine operation. They combine advanced materials with the latest manufacturing processes to produce cylinder base sealing solutions with the perfect fit for your motorcycle. Select the gasket designed for your bike.

Not Yet Reviewed

$5.92

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$31.55

Cometic Gasket Cam Cover Gaskets

Cometic Gasket cam cover gaskets are made from advanced materials combined with the most current manufacturing processes to deliver quality sealing solutions for your Harley®.

Not Yet Reviewed

$8.94

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$72.19

Cometic Gasket Powersports Head Gaskets

Cometic Gasket has developed some of the highest performing gaskets available. Their gaskets have a proven history under the most demanding conditions. Cometic powersports head gaskets are constructed from a variety of high-quality materials to perfectly fit your application. Why not let Cometic Gasket's experience work for you?

5.0 out of 5 stars ( 1 )

$50.60

Summit Bucks

S&S Cycle Manifold O-Rings

S&S Cycle offers several options of manifold O-rings for your motorcycle. They are made of special materials that resist destruction from the additives in today's fuel. Select the ones needed for your bike.

Not Yet Reviewed

$10.95

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$59.95

Summit Bucks

S&S Cycle Head Gaskets

S&S Cycle head gaskets are constructed from premium materials, such as micropore and copper, for quality sealing performance. Sold in convenient multi-packs, the gaskets are available in a variety of thicknesses and bore configurations for fitment on Harley-Davidson® models. Match up your bike with the correct S&S head gaskets to ensure leak-proof operation.

Not Yet Reviewed

$35.95

Cometic Gasket Starter Motor Gaskets

Known for their quality, Cometic Gasket starter motor gaskets for Harley-Davidson® motorcycles are a good, economical option. These gaskets are designed to prevent leaks and ensure a proper seal between the starter motor and engine cover, maintaining airtight compartments and preventing fluid mixing. By maintaining airtight compartments, starter motor gaskets contribute to the overall proper functioning of your bike's engine. These Cometic gaskets are designed to be easily installed and replaced, making them a convenient sealing solution for maintaining your HD® motorcycle.

Not Yet Reviewed

$10.13