COMETIC
Cometic Gaskets, Head Gaskets, and Seal Kits at JJ Motorsports
Cometic Gasket, founded in 1989 by Bob Gorman in the USA, is a leading manufacturer in the powersports and automotive industries, specializing in high-performance gaskets and sealing solutions. Starting from a small facility dedicated to powersports, Cometic has grown to provide innovative products that withstand extreme pressures and temperatures, catering to engine builders, racers, and enthusiasts worldwide.
At JJ Motorsports, we offer a wide range of Cometic products designed for reliable engine maintenance and upgrades. Harley-Davidson riders can enhance their setups with the durable Derby Seal Cover C10306F5 or the precise Head Gasket 3.937" x 0.036" for M8 models. For exhaust systems, the Muffler Gasket for M8/FXST/XL ensures a tight seal. We also carry options for other brands, such as the Top End Gasket Kit 68 mm for Honda and the comprehensive Top End Gasket Kit for Yamaha. Whether you're rebuilding an engine or preventing leaks, Cometic delivers compatible solutions for various vehicles. Explore our inventory to find the perfect fit for your needs.
Key features of Cometic products include Multi-Layer Steel (MLS) technology for superior durability, custom bore sizes and thicknesses for precise applications, high-temperature resistance to handle demanding conditions, and advanced materials that maintain compression and prevent failures. Shop now and secure your ride with Cometic's trusted quality!
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- Qty in Cart
- Quantity
- Price
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COMETIC Derby Seal Cover C10306F5
COMETIC
$23.20Derby Seal Cover High-quality products for long-term reliability, Made in the USA09347177- SKU:
- 09347177
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
$23.20 -
COMETIC Head Gasket - 3.937" x 0.036" - M8 C10345-036
COMETIC
$86.05Head Gasket - 3.937" x 0.036" - M8 MLX Gasket (Multi-Layer-Xtreme) features an extra *stopper* fold-over layer providing a torque limiting surface that prevents yielding of the combustion seal,...09347528- SKU:
- 09347528
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
$86.05Qty in Cart: 0Quantity:Price:$86.05Subtotal: -
COMETIC Head Gasket - 4.250" x 0.036" - M8 C10346-036
COMETIC
$86.05Head Gasket - 4.250" x 0.036" - M8 MLX Gasket (Multi-Layer-Xtreme) features an extra *stopper* fold-over layer providing a torque limiting surface that prevents yielding of the combustion seal,...09347529- SKU:
- 09347529
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
$86.05 -
COMETIC Head Gasket - 4.320" x 0.032" - M8 C10336-032
COMETIC
$86.05Head Gasket - 4.320" x 0.032" - M8 MLX Gasket (Multi-Layer-Xtreme) features an extra *stopper* fold-over layer providing a torque limiting surface that prevents yielding of the combustion seal,...09347530- SKU:
- 09347530
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
$86.05 -
COMETIC Head Gasket - 4.320" x 0.036" - M8 C10336-036
COMETIC
$86.05Head Gasket - 4.320" x 0.036" - M8 MLX Gasket (Multi-Layer-Xtreme) features an extra *stopper* fold-over layer providing a torque limiting surface that prevents yielding of the combustion seal,...09347531- SKU:
- 09347531
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$86.05 -
COMETIC Head Gasket - 4.320" x 0.040" - M8 C10336-040
COMETIC
$86.05Head Gasket - 4.320" x 0.040" - M8 MLX Gasket (Multi-Layer-Xtreme) features an extra *stopper* fold-over layer providing a torque limiting surface that prevents yielding of the combustion seal,...09347532- SKU:
- 09347532
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
$86.05Qty in Cart: 0Quantity:Price:$86.05Subtotal: -
COMETIC Head Gasket - 4.430" x 0.036" - M8 C10347-036
COMETIC
$86.05Head Gasket - 4.430" x 0.036" - M8 MLX Gasket (Multi-Layer-Xtreme) features an extra *stopper* fold-over layer providing a torque limiting surface that prevents yielding of the combustion seal,...09347533- SKU:
- 09347533
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
$86.05 -
COMETIC Head Gasket - 4.500" x 0.036" - M8 C10348-036
COMETIC
$86.05Head Gasket - 4.500" x 0.036" - M8 MLX Gasket (Multi-Layer-Xtreme) features an extra *stopper* fold-over layer providing a torque limiting surface that prevents yielding of the combustion seal,...09347534- SKU:
- 09347534
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
$86.05 -
COMETIC Muffler Gasket - M8/FXST/XL C10232
COMETIC
$41.95Muffler Gasket - M8/FXST/XL High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, GraFoil? gaskets provide...09347810- SKU:
- 09347810
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$41.95Qty in Cart: 0Quantity:Price:$41.95Subtotal: -
COMETIC Muffler Gasket - Right - Grafoil? - M8 C10351
COMETIC
$30.40Muffler Gasket - Right - Grafoil? - M8 High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, GraFoil?...09347811- SKU:
- 09347811
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$30.40 -
COMETIC Exhaust Header Gasket C10352
COMETIC
$20.95Exhaust Header Gasket High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the USA09347812- SKU:
- 09347812
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$20.95Qty in Cart: 0Quantity:Price:$20.95Subtotal: -
COMETIC Exhaust Header Gasket - Indian C10353
COMETIC
$41.95Exhaust Header Gasket - Indian High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the USA09347813- SKU:
- 09347813
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$41.95Qty in Cart: 0Quantity:Price:$41.95Subtotal: -
COMETIC Head Gasket - 4.125" - .032" - MLX - Twin Cam C10358-032
COMETIC
$86.05Head Gasket - 4.125" - .032" - MLX - Twin Cam Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, 4.125" big bore is a popular big bore for...09347814- SKU:
- 09347814
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$86.05 -
COMETIC Head Gasket - 4.125" - .036" - MLX - Twin Cam C10358-036
COMETIC
$86.05Head Gasket - 4.125" - .036" - MLX - Twin Cam Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, 4.125" big bore is a popular big bore for...09347815- SKU:
- 09347815
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$86.05Qty in Cart: 0Quantity:Price:$86.05Subtotal: -
COMETIC Rocker Box Rebuild Gasket 88"/96"/103" with O-Rings and Tappet Gaskets - Twin Cam C10359
COMETIC
$61.90Rocker Box Rebuild Gasket 88"/96"/103" with O-Rings and Tappet Gaskets - Twin Cam Premium materials used for specific applications to provide a long, service free life, Kit includes all gaskets and...09347817- SKU:
- 09347817
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
$61.90Qty in Cart: 0Quantity:Price:$61.90Subtotal: -
COMETIC Top End Gasket/O-Ring Cylinder Head Gasket Kit - Yamaha C3694
COMETIC
$39.95Top End Gasket/O-Ring Cylinder Head Gasket Kit - Yamaha All top-end gasket kit includes everything needed to rebuild your top end09351299- SKU:
- 09351299
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$39.95 -
COMETIC Crankcase Oil Seal Kit - Honda C3139OS
COMETIC
$48.95Crankcase Oil Seal Kit - Honda High-quality seals allow for proper sealing of common leaks09351300- SKU:
- 09351300
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$48.95 -
COMETIC Top End Gasket Kit - 68 mm - Honda C3171-EST
COMETIC
$63.95Top End Gasket Kit - 68 mm - Honda Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347824- SKU:
- 09347824
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$63.95 -
COMETIC Top End Gasket Kit - Yamaha C3215
COMETIC
$44.95Top End Gasket Kit - Yamaha Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head...09347826- SKU:
- 09347826
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$44.95 -
COMETIC Top End Gasket Kit - 97 mm - Suzuki C3233-EST
COMETIC
$89.95Top End Gasket Kit - 97 mm - Suzuki Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347827- SKU:
- 09347827
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$89.95 -
COMETIC Top End Gasket Kit - 99 mm - Suzuki C3234-EST
COMETIC
$89.95Top End Gasket Kit - 99 mm - Suzuki Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347828- SKU:
- 09347828
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$89.95 -
COMETIC Top End Gasket Kit - 101 mm - Suzuki C3235-EST
COMETIC
$89.95Top End Gasket Kit - 101 mm - Suzuki Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347831- SKU:
- 09347831
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$89.95 -
COMETIC Top End Gasket Kit - 77 mm - Suzuki C3406-EST
COMETIC
$69.95Top End Gasket Kit - 77 mm - Suzuki Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347832- SKU:
- 09347832
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$69.95 -
COMETIC Top End Gasket Kit - 79 mm - Suzuki C3407-EST
COMETIC
$69.95Top End Gasket Kit - 79 mm - Suzuki Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347833- SKU:
- 09347833
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$69.95 -
COMETIC Top End Gasket Kit - 80 mm - Suzuki C3408-EST
COMETIC
$69.95Top End Gasket Kit - 80 mm - Suzuki Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347834- SKU:
- 09347834
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$69.95 -
COMETIC Top End Gasket Kit - 82 mm - Suzuki C3409-EST
COMETIC
$69.95Top End Gasket Kit - 82 mm - Suzuki Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347836- SKU:
- 09347836
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$69.95 -
COMETIC Top End Gasket Kit - 84 mm - Suzuki C3410-EST
COMETIC
$69.95Top End Gasket Kit - 84 mm - Suzuki Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347837- SKU:
- 09347837
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$69.95 -
COMETIC Top End Gasket Kit - 97 mm - Yamaha C3540-EST
COMETIC
$68.95Top End Gasket Kit - 97 mm - Yamaha Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347839- SKU:
- 09347839
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$68.95 -
COMETIC Top End Gasket Kit - 52.5 mm - Kawasaki C3542
COMETIC
$31.95Top End Gasket Kit - 52.5 mm - Kawasaki Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end,...09347840- SKU:
- 09347840
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$31.95 -
COMETIC Top End Gasket Kit - 88 mm - KTM C3605-EST
COMETIC
$74.95Top End Gasket Kit - 88 mm - KTM Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head...09347843- SKU:
- 09347843
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$74.95 -
COMETIC Top End Gasket Kit - 96 mm - Honda C3621
COMETIC
$85.95Top End Gasket Kit - 96 mm - Honda Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347844- SKU:
- 09347844
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$85.95 -
COMETIC Top End Gasket Kit - 97 mm - Yamaha C3630
COMETIC
$53.95Top End Gasket Kit - 97 mm - Yamaha Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347845- SKU:
- 09347845
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$53.95 -
COMETIC Top End Gasket Kit - 77 mm - Yamaha C3695
COMETIC
$79.95Top End Gasket Kit - 77 mm - Yamaha Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347847- SKU:
- 09347847
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$79.95 -
COMETIC Top End Gasket Kit/O-Ring Cylinder Head Gasket - Yamaha C3731
COMETIC
$39.95Top End Gasket Kit/O-Ring Cylinder Head Gasket - Yamaha Top-end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top-end specific O-rings or seals needed for...09347849- SKU:
- 09347849
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$39.95 -
COMETIC Top End Gasket Kit - 82 mm - Honda C3735
COMETIC
$67.95Top End Gasket Kit - 82 mm - Honda Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347851- SKU:
- 09347851
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$67.95 -
COMETIC Top End Gasket Kit - KTM/Husqvarna C3808
COMETIC
$92.95Top End Gasket Kit - KTM/Husqvarna Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS...09347802- SKU:
- 09347802
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$92.95 -
COMETIC Top End Gasket Kit - 90 mm - KTM C3779-EST
COMETIC
$74.95Top End Gasket Kit - 90 mm - KTM Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head...09347853- SKU:
- 09347853
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$74.95 -
COMETIC Top End Gasket Kit - KTM/Husqvarna/Gas Gas C3623
COMETIC
$46.95Top End Gasket Kit - KTM/Husqvarna/Gas Gas Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end,...09347804- SKU:
- 09347804
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$46.95 -
COMETIC Top End Gasket Kit - 79 mm - KTM/Husqvarna/Gas Gas C3595-EST
COMETIC
$87.95Top End Gasket Kit - 79 mm - KTM/Husqvarna/Gas Gas Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of...09347806- SKU:
- 09347806
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$87.95 -
COMETIC Top End Gasket Kit - 90 mm - KTM/Husqvarna/Gas Gas C3790
COMETIC
$97.95Top End Gasket Kit - 90 mm - KTM/Husqvarna/Gas Gas Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of...09347857- SKU:
- 09347857
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$97.95
