Cometic
Cometic is a leading manufacturer of high-performance motorcycle gaskets trusted by engine builders, tuners and everyday riders. Known for precision fitment and race-proven sealing technology, Cometic produces premium head gaskets, top-end kits, bottom-end kits and complete engine gasket sets for Harley-Davidson, metric bikes, ATVs and UTVs. Whether restoring a Twin Cam, upgrading an M8 or rebuilding Yamaha, Honda, Polaris or Suzuki engines, Cometic delivers the reliability and durability riders demand.
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Cometic - C9765 - Rocker Gasket - EST - XL
Cometic
$65.05Cometic - C9765 - Rocker Gasket - EST - XLFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality bolt seals...$65.05 -
Out of stock
Cometic - C9764 - Rocker Gasket - EST - XL
Cometic
$65.05Cometic - C9764 - Rocker Gasket - EST - XLFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality bolt seals...$65.05 -
Cometic - C9763 - Top End Gasket Kit - XL1200 - EST
Cometic
$142.75Cometic - C9763 - Top End Gasket Kit - XL1200 - ESTFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary...$142.75 -
Cometic - C9752 - Rocker Gasket - EST - Big Twin
Cometic
$65.05Cometic - C9752 - Rocker Gasket - EST - Big TwinFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality bolt...$65.05 -
Out of stock
Cometic - C9761 - Top End Gasket Kit - XL1100 - EST
Cometic
$142.75Cometic - C9761 - Top End Gasket Kit - XL1100 - ESTFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary...$142.75 -
Cometic - C9753 - Rocker Gasket - EST - Big Twin
Cometic
$65.05Cometic - C9753 - Rocker Gasket - EST - Big TwinFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality bolt...$65.05 -
Out of stock
Cometic - C9066 - Rocker Box Gasket - SLS - XL
Cometic
$47.20Cometic - C9066 - Rocker Box Gasket - SLS - XLFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality bolt...$47.20 -
Out of stock
Cometic - C9760 - Top End Gasket Kit - XL883 - EST
Cometic
$142.75Cometic - C9760 - Top End Gasket Kit - XL883 - ESTFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary...$142.75 -
Cometic - C9078 - Rocker Box Gasket
Cometic
$47.20Cometic - C9078 - Rocker Box GasketFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality bolt seals needed...$47.20 -
Cometic - C9553 - Cylinder Base Gasket - .020" - XL
Cometic
$33.55Cometic - C9553 - Cylinder Base Gasket - .020" - XLFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become...$33.55 -
Cometic - C9029 - Cylinder Base Copper Gasket - .016" - EVO
Cometic
$28.30Cometic - C9029 - Cylinder Base Copper Gasket - .016" - EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$28.30 -
Cometic - C9555 - Cylinder Base Gasket - 3.625" - .020" - XL
Cometic
$33.55Cometic - C9555 - Cylinder Base Gasket - 3.625" - .020" - XLFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$33.55 -
Cometic - C9552 - Cylinder Base Gasket - 3.625" - .020" - EVO
Cometic
$33.55Cometic - C9552 - Cylinder Base Gasket - 3.625" - .020" - EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$33.55 -
Cometic - C9551 - Cylinder Base Gasket - 3.500" - .020" - EVO
Cometic
$33.55Cometic - C9551 - Cylinder Base Gasket - 3.500" - .020" - EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$33.55 -
Cometic - C9025 - Copper Base Gasket - XL
Cometic
$17.80Cometic - C9025 - Copper Base Gasket - XLFeaturesCenter or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirementsOuter layers are embossed and...$17.80 -
Cometic - C9442 - Derby O-Ring
Cometic
$5.20Cometic - C9442 - Derby O-RingFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleMade in the U.S.A...$5.20 -
Cometic - C9588 - Rocker Box Gasket Kit - Twin Cam
Cometic
$46.15Cometic - C9588 - Rocker Box Gasket Kit - Twin CamFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality...$46.15 -
Out of stock
Cometic - C9745 - Head Gasket - 3.750" x .040" - 88"/96" - '99-'13 Twin Cam
Cometic
$61.90Cometic - C9745 - Head Gasket - 3.750" x .040" - 88"/96" - '99-'13 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not...$61.90 -
Out of stock
Cometic - C9721 - Head Gasket - 3.875" x .030" - 95"/103" - '99-'16 Twin Cam
Cometic
$61.90Cometic - C9721 - Head Gasket - 3.875" x .030" - 95"/103" - '99-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not...$61.90 -
Cometic - C9722 - Head Gasket - 3.875" x .040" - 95"/103" - '99-'16 Twin Cam
Cometic
$61.90Cometic - C9722 - Head Gasket - 3.875" x .040" - 95"/103" - '99-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not...$61.90 -
Cometic - C9790 - Head Gasket - 3.750" x .030" - 88"/96" - '99-'13 Twin Cam
Cometic
$61.90Cometic - C9790 - Head Gasket - 3.750" x .030" - 88"/96" - '99-'13 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not...$61.90 -
Cometic - C9690 - Head Gasket - 3.625" x .030" - '84-'99 EVO
Cometic
$61.90Cometic - C9690 - Head Gasket - 3.625" x .030" - '84-'99 EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$61.90 -
Cometic - C9689 - Head Gasket - Standard - 3.500" x .040" - '84-'99 EVO/'88-'22 XL 1200
Cometic
$61.90Cometic - C9689 - Head Gasket - Standard - 3.500" x .040" - '84-'99 EVO/'88-'22 XL 1200FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that...$61.90 -
Cometic - C9688 - Head Gasket - Standard - 3.500" x .030" - '84-'99 EVO/'88-'22 XL 1200
Cometic
$61.90Cometic - C9688 - Head Gasket - Standard - 3.500" x .030" - '84-'99 EVO/'88-'22 XL 1200FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that...$61.90 -
Cometic - C9691 - Head Gasket - 3.625" x .040" - '84-'99 EVO
Cometic
$61.90Cometic - C9691 - Head Gasket - 3.625" x .040" - '84-'99 EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$61.90 -
Cometic - C9780 - Top End Gasket Kit - 95" - Twin Cam - EST
Cometic
$181.60Cometic - C9780 - Top End Gasket Kit - 95" - Twin Cam - ESTFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a...$181.60 -
Cometic - C9779 - Top End Gasket Kit - Twin Cam 88 - EST
Cometic
$183.70Cometic - C9779 - Top End Gasket Kit - Twin Cam 88 - ESTFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary...$183.70 -
Out of stock
Cometic - C9747 - Top End Gasket - Big Twin - EST
Cometic
$142.75Cometic - C9747 - Top End Gasket - Big Twin - ESTFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber...$142.75 -
Cometic - C9635 - Top End Gasket - Big Twin - EST
Cometic
$142.75Cometic - C9635 - Top End Gasket - Big Twin - ESTFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber...$142.75 -
Cometic - C9302F5 - Cam Cover Gasket - Big Twin
Cometic
$9.40Cometic - C9302F5 - Cam Cover Gasket - Big TwinFeaturesHigh-quality products for long-term reliabilityGaskets available in multiple types to best suit the intended applicationManufactured from...$9.40 -
Cometic - C9305F5 - Inspection Cover Gasket
Cometic
$9.40Cometic - C9305F5 - Inspection Cover GasketFeaturesMade in the U.S.A.Replacement Part for OEM Number(s): 3490685ASpecsThickness Imperial0.060''MaterialAFM (Aluminum Foam Material)Units5...$9.40 -
Cometic - C9328F5 - Cam Cover Gasket - Big Twin
Cometic
$11.50Cometic - C9328F5 - Cam Cover Gasket - Big TwinFeaturesHigh-quality products for long-term reliabilityGaskets available in multiple types to best suit the intended applicationManufactured from...$11.50 -
Out of stock
Cometic - C9314F5 - Primary Gasket
Cometic
$29.35Cometic - C9314F5 - Primary GasketFeaturesCometic's proprietary AFM (Aluminum Foamette Material) gaskets feature an aluminum core with a chemically blown, compounded nitrile synthetic rubber bonded...$29.35 -
Out of stock
Cometic - C9307F5 - Primary Gasket
Cometic
$45.10Cometic - C9307F5 - Primary GasketFeaturesCometic's proprietary AFM (Aluminum Foamette Material) gaskets feature an aluminum core with a chemically blown, compounded nitrile synthetic rubber bonded...$45.10 -
Cometic - C10305 - Oil Pump Seal
Cometic
MSRP: $10.95$8.03Cometic - C10305 - Oil Pump SealFeaturesReplacement Oil Pump SealReplacement Part for OEM Number(s): 62400205SpecsRiding StyleStreetMaterialVitonTypeOil PumpProduct NameSealUnitsEachFitment2017-2021...MSRP: $10.95$8.03 -
Out of stock
Cometic - C9586-M8 - Pushrod O-Ring with Tappet Gaskets - M8
Cometic
$15.70Cometic - C9586-M8 - Pushrod O-Ring with Tappet Gaskets - M8 Features Viton® rubber O-ring seals Include proper quantity for one engine Made in the U.S.A...$15.70 -
Cometic - C10200 - Induction Module O-Ring Kit - M8
Cometic
$8.35Cometic - C10200 - Induction Module O-Ring Kit - M8FeaturesManufactured from premium fuel-resistant materials that will not creep, crack or become brittleMade in the USAReplacement Part for OEM...$8.35 -
Cometic - C10189 - Breather Assembly O-Ring
Cometic
$3.10Cometic - C10189 - Breather Assembly O-RingFeaturesManufactured from premium fuel-resistant materials that will not creep, crack or become brittleMade in the U.S.A.Replacement Part for OEM Number(s):...$3.10 -
Out of stock
Cometic - C9433F1 - Starter Housing O-Ring - Big Twin
Cometic
$4.95Cometic - C9433F1 - Starter Housing O-Ring - Big TwinFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become...$4.95 -
Out of stock
Cometic - C9201F1 - Starter Seal O-Ring - Twin Cam
Cometic
$4.95Cometic - C9201F1 - Starter Seal O-Ring - Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become...$4.95
Cometic Gaskets – High-Performance Engine, Primary and Top-End Gasket Kits
Cometic has built its reputation on manufacturing advanced gasket solutions engineered for long-term strength, thermal stability and consistent sealing under high-stress conditions. Their gaskets are developed using premium materials including MLS, EST and fiber options to meet the demands of stock engines, high-compression builds and performance upgrades. Riders and engine builders trust Cometic head gaskets and top-end gasket kits for their ability to maintain a secure seal even under extreme heat, pressure and vibration.
Supporting a wide range of platforms, Cometic offers complete gasket solutions for Harley-Davidson engines such as Evolution, Twin Cam and Milwaukee-Eight, along with extensive coverage for Yamaha, Honda, Kawasaki, Suzuki, KTM, Polaris and Arctic Cat machines. Their catalog includes primary gasket kits, rocker box gaskets, cylinder base gaskets, cam change kits and complete engine rebuild sets designed for precise fit and dependable performance.
Whether you’re performing routine maintenance, completing an engine rebuild or pushing a high-output setup, Cometic provides the sealing technology needed to keep your motorcycle or powersports engine performing at its best. Every gasket is engineered to OEM-level precision or better, delivering a combination of durability, accuracy and performance that has made Cometic a top choice in the racing and engine-building community.