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Street Bike Gaskets and Kits

Street Bike Gaskets and Kits

Street Bike Engine Gaskets & Kits at JJ Motorsports

Rebuild and seal your street bike's engine with premium gaskets and kits from JJ Motorsports. Our selection includes complete gasket sets, top-end kits, clutch gaskets, and valve stem seals designed for superior sealing, high-temperature resistance, and easy installation during overhauls or maintenance on the road or track. Compatible with Honda, Suzuki, Yamaha, Kawasaki, and more, these components feature advanced materials like rubber-coated spring steel, nitrile synthetic rubber on aluminum cores, and silicone beading to prevent leaks, ensure torque retention, and extend engine life for sportbikes, cruisers, or daily commuters. Ideal for pro riders freshening engines midseason or DIY mechanics tackling full rebuilds, they provide reliable performance without needing sealants or re-torquing.

Shop trusted brands like Vesrah for complete sets, Athena for top-end and full kits, and Cometic for specialized clutch gaskets. Explore related categories such as street bike engine for more components or street bike oils & fluids for maintenance essentials.

Top Street Bike Engine Gaskets & Kits Products

Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • On Sale
    ATHENA Top End Gasket Kit - Honda P400210600949

    ATHENA Top End Gasket Kit - Honda P400210600949

    ATHENA

    MSRP: $116.95
    Now: $105.00
    Was: $116.95
    Whether you're prepping for race day or executing a midseason engine refresh, the ATHENA Top End Gasket Kit delivers the reliability you need when tolerances matter most. This kit gives you the flexibility to run your Honda on pump gas with stock...
    09340987
    SKU:
    09340987
    Availability:
    Ships Same Business Day
    Weight:
    0.63 LBS
    PRODUCT NAME:
    GASKET KIT
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    TYPE:
    TOP END
    MATERIAL:
    SPRING STEEL
    MSRP: $116.95
    Now: $105.00
    Was: $116.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $116.95
    Now: $105.00
    Was: $116.95
    Subtotal:
  • COMETIC Street Gasket C8468

    COMETIC Street Gasket C8468

    COMETIC

    $24.95
    A leaking valve cover gasket compromises engine cleanliness and can damage surrounding components—this is a maintenance item you shouldn't ignore or cheap out on. The COMETIC Street Gasket C8468 delivers OEM-level sealing performance at a fraction of the...
    C8468
    SKU:
    C8468
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,039'
    UNITS:
    EACH
    MATERIAL:
    FIBER
    TYPE:
    VALVE COVER
    THICKNESS METRIC:
    0.99 MM
    $24.95
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • COMETIC Street Gasket C8585

    COMETIC Street Gasket C8585

    COMETIC

    $36.95
    A head gasket is only as good as its ability to maintain a consistent seal under extreme combustion pressures and thermal cycling. The COMETIC Street Gasket C8585 uses multi-layer steel construction with load control embossments to distribute clamping...
    C8585X
    SKU:
    C8585X
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    STREET
    MATERIAL:
    RUBBER
    MODEL:
    HI-PERFORMANCE
    THICKNESS IMPERIAL:
    0,010'
    THICKNESS METRIC:
    0.25 MM
    TYPE:
    CYLINDER BASE
    BORE SIZE IMPERIAL:
    3.661'
    DISPLACEMENT:
    1299 CC - 1428 CC
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $36.95
    Subtotal:
  • COMETIC Street Gasket Kit C8587

    COMETIC Street Gasket Kit C8587

    COMETIC

    $88.95
    A complete gasket kit is foundational to any engine rebuild or overhaul—sealing surfaces properly prevents oil leaks, coolant weeping, and combustion blow-by that compromises performance and reliability. The COMETIC Street Gasket Kit C8587 gives you all...
    C8587X
    SKU:
    C8587X
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    GASKET KIT
    UNITS:
    KIT
    MODEL:
    HI-PERFORMANCE
    TYPE:
    ENGINE CASE REBUILD
    MATERIAL:
    ARAMID FIBER
    RIDING STYLE:
    STREET
    Qty in Cart: 0
    Quantity:
    Price:
    $88.95
    Subtotal:
  • COMETIC Street Gasket Kit C8588

    COMETIC Street Gasket Kit C8588

    COMETIC

    $36.95
    A complete gasket and seal kit is essential for engine reliability—whether you're rebuilding after a performance upgrade or restoring factory integrity. The COMETIC Street Gasket Kit C8588 eliminates the guesswork of sourcing individual gaskets by...
    C8588X
    SKU:
    C8588X
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MODEL:
    HI-PERFORMANCE
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET KIT
    TYPE:
    ENGINE CASE REBUILD
    Qty in Cart: 0
    Quantity:
    Price:
    $36.95
    Subtotal:
  • COMETIC Head Gasket -GSX/GSF 600 C8025

    COMETIC Head Gasket -GSX/GSF 600 C8025

    COMETIC

    $64.95
    A head gasket is your engine's first line of defense against combustion pressure, coolant mixing, and oil contamination—failure means catastrophic engine damage. The COMETIC C8025 is engineered specifically for GSX/GSF 600 applications with a multi-layer...
    09343498
    SKU:
    09343498
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    BORE SIZE:
    66,50 MM
    FEATURES:
    WITH NO DOWEL PINS
    TYPE:
    CYLINDER HEAD
    UNITS:
    EACH
    MATERIAL:
    GALVANIZED STEEL
    THICKNESS METRIC:
    1.09 MM
    BORE SIZE METRIC:
    66.50 MM
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,043'
    $64.95
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
  • COMETIC Gasket Kit - Suzuki C8081AFM

    COMETIC Gasket Kit - Suzuki C8081AFM

    COMETIC

    $37.95
    Engine gasket failure can lead to catastrophic compression loss and fluid contamination—two problems that will sideline your build and drain your wallet. The COMETIC Gasket Kit C8081AFM provides a complete, OEM-equivalent seal solution engineered to...
    09343507
    SKU:
    09343507
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    GASKET KIT
    TYPE:
    ENGINE CASE REBUILD
    MODEL:
    HI-PERFORMANCE
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • COMETIC Gasket Kit - Suzuki C8206

    COMETIC Gasket Kit - Suzuki C8206

    COMETIC

    $68.95
    A complete gasket and seal kit ensures a leak-free engine assembly and maintains proper compression across all critical sealing points. OEM gaskets degrade over time, leading to oil weeps, coolant loss, and compromised performance—this Cometic kit...
    09343576
    SKU:
    09343576
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    TYPE:
    ENGINE CASE REBUILD
    BORE SIZE METRIC:
    70.00 MM
    MODEL:
    HI-PERFORMANCE
    BORE SIZE:
    70,00 MM
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $68.95
    Subtotal:
  • COMETIC Valve Cover Gasket - Suzuki C8310

    COMETIC Valve Cover Gasket - Suzuki C8310

    COMETIC

    $24.95
    A leaking valve cover gasket compromises engine sealing, invites contamination, and creates a mess under the hood. COMETIC's application-specific design eliminates these problems with a precision fit that holds its seal through countless heat cycles. At...
    09343625
    SKU:
    09343625
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    MATERIAL:
    FIBER
    THICKNESS IMPERIAL:
    0,047'
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    1.19 MM
    TYPE:
    VALVE COVER
    UNITS:
    EACH
    $24.95
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • COMETIC Head Gasket - Kawasaki C8324

    COMETIC Head Gasket - Kawasaki C8324

    COMETIC

    $64.95
    A head gasket failure can mean catastrophic engine damage—and the COMETIC C8324 is engineered to prevent exactly that. This gasket combines precision materials with proven sealing technology to handle extreme pressure, temperature fluctuations, and...
    09343631
    SKU:
    09343631
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    THICKNESS IMPERIAL:
    0,043'
    BORE SIZE:
    72,00 MM
    FEATURES:
    TWO PIECE
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    MATERIAL:
    FIBER
    BORE SIZE METRIC:
    72.00 MM
    THICKNESS METRIC:
    1.09 MM
    TYPE:
    CYLINDER HEAD
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
  • COMETIC Head Gasket - GSXR 750/1000 C8602

    COMETIC Head Gasket - GSXR 750/1000 C8602

    COMETIC

    $108.95
    A head gasket is the critical seal between your engine block and cylinder head—any compromise here means combustion leak, performance loss, and potential engine damage. The COMETIC C8602 for GSXR 750/1000 combines precision engineering with materials...
    09343756
    SKU:
    09343756
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    BORE SIZE:
    76,00 MM
    FEATURES:
    WITH NO DOWEL PINS
    MATERIAL:
    STEEL
    TYPE:
    CYLINDER HEAD
    BORE SIZE METRIC:
    76.00 MM
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    THICKNESS IMPERIAL:
    0,030'
    THICKNESS METRIC:
    0.76 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $108.95
    Subtotal:
  • COMETIC Gasket Kit - Yamaha C8612AFM

    COMETIC Gasket Kit - Yamaha C8612AFM

    COMETIC

    $24.95
    A complete gasket and seal kit eliminates the guesswork when rebuilding or servicing your engine—every component you need is included, engineered to factory specifications, and ready to install. COMETIC's U.S.A.-manufactured gaskets deliver reliable...
    09343761
    SKU:
    09343761
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    MODEL:
    HI-PERFORMANCE
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    GASKET KIT
    THICKNESS IMPERIAL:
    0,030'
    THICKNESS:
    0,76 MM (0,030')
    THICKNESS METRIC:
    0.76 MM
    BORE SIZE:
    68,00 MM
    BORE SIZE METRIC:
    68.00 MM
    TYPE:
    ENGINE CASE REBUILD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • COMETIC Gasket Kit - Kawasaki C8846

    COMETIC Gasket Kit - Kawasaki C8846

    COMETIC

    $68.95
    A quality gasket kit is the foundation of engine reliability—preventing fluid leaks and maintaining compression integrity across all critical sealing points. The COMETIC C8846 provides OEM-equivalent sealing performance without the OEM price tag, making...
    09343934
    SKU:
    09343934
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BORE SIZE METRIC:
    79.00 MM
    MATERIAL:
    STEEL
    THICKNESS IMPERIAL:
    0,018'
    TYPE:
    ENGINE CASE REBUILD
    UNITS:
    KIT
    BORE SIZE:
    79,00 MM
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    STREET
    MODEL:
    HI-PERFORMANCE
    THICKNESS:
    0,46 MM (0,018')
    THICKNESS METRIC:
    0.46 MM
    $68.95
    Qty in Cart: 0
    Quantity:
    Price:
    $68.95
    Subtotal:
  • COMETIC Gasket Kit - Honda C8863

    COMETIC Gasket Kit - Honda C8863

    COMETIC

    $56.95
    A quality gasket kit is the foundation of a reliable engine assembly—it's what keeps combustion sealed and prevents fluid leaks that can compromise performance or cause catastrophic failure. The COMETIC Gasket Kit C8863 provides complete gasket and seal...
    09343947
    SKU:
    09343947
    Availability:
    Ships Same Business Day
    Weight:
    0.21 LBS
    TYPE:
    ENGINE CASE REBUILD
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    STREET
    MODEL:
    HI-PERFORMANCE
    Qty in Cart: 0
    Quantity:
    Price:
    $56.95
    Subtotal:
  • COMETIC Exhaust Gasket C8873

    COMETIC Exhaust Gasket C8873

    COMETIC

    $44.95
    A failed exhaust gasket means leaks, lost performance, and potential engine damage—so you need a solution that won't fail under extreme heat and pressure. The COMETIC C8873 is engineered to handle the unforgiving conditions of high-performance and racing...
    09343956
    SKU:
    09343956
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    TYPE:
    EXHAUST
    UNITS:
    SET
    Qty in Cart: 0
    Quantity:
    Price:
    $44.95
    Subtotal:
  • COMETIC Exhaust Gasket C8876

    COMETIC Exhaust Gasket C8876

    COMETIC

    $27.95
    A blown exhaust gasket means lost power, increased emissions, and potential engine damage—none of which you can afford on track or street. The COMETIC C8876 delivers reliable, high-temperature sealing that holds up under extreme conditions and...
    09343959
    SKU:
    09343959
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    MODEL:
    HI-PERFORMANCE
    TYPE:
    EXHAUST
    UNITS:
    SET
    $27.95
    Qty in Cart: 0
    Quantity:
    Price:
    $27.95
    Subtotal:
  • COMETIC Exhaust Gasket - Suzuki C8886

    COMETIC Exhaust Gasket - Suzuki C8886

    COMETIC

    $44.95
    A failed exhaust gasket will compromise your engine's performance and create costly air leaks that degrade horsepower and fuel efficiency. The COMETIC C8886 is engineered to withstand extreme exhaust temperatures and prevent blow-outs, even under...
    09343969
    SKU:
    09343969
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    TYPE:
    EXHAUST
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    UNITS:
    SET
    Qty in Cart: 0
    Quantity:
    Price:
    $44.95
    Subtotal:
  • COMETIC Clutch Gasket - Kawasaki EC002020F

    COMETIC Clutch Gasket - Kawasaki EC002020F

    COMETIC

    $7.95
    Clutch cover gasket failures lead to oil seepage, reduced engine efficiency, and costly downtime. COMETIC's EC002020F eliminates these issues with a purpose-engineered AFM material that seals reliably without sealants, saving you installation time and...
    09343970
    SKU:
    09343970
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    UNITS:
    EACH
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    TYPE:
    CLUTCH COVER
    THICKNESS IMPERIAL:
    0,020'
    $7.95
    Qty in Cart: 0
    Quantity:
    Price:
    $7.95
    Subtotal:
  • COMETIC Stator Gasket - Kawasaki EC003020F

    COMETIC Stator Gasket - Kawasaki EC003020F

    COMETIC

    $7.95
    A compromised stator gasket means oil weeping, extended downtime, and risk of catastrophic engine damage. The COMETIC Stator Gasket eliminates these problems with an AFM material core that resists sticking, requires zero sealants, and delivers a superior...
    09343971
    SKU:
    09343971
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    TYPE:
    STATOR COVER
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $7.95
    Qty in Cart: 0
    Quantity:
    Price:
    $7.95
    Subtotal:
  • COMETIC Clutch Gasket - Suzuki EC008020F

    COMETIC Clutch Gasket - Suzuki EC008020F

    COMETIC

    $7.95
    A reliable clutch gasket is critical to maintaining pressure integrity and preventing oil weeping that compromises engine performance and cleanliness. The COMETIC Clutch Gasket for Suzuki uses an advanced AFM material—a nitrile synthetic rubber bonded to...
    09343972
    SKU:
    09343972
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    TYPE:
    CLUTCH COVER
    UNITS:
    EACH
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    MODEL:
    HI-PERFORMANCE
    THICKNESS IMPERIAL:
    0,020'
    $7.95
    Qty in Cart: 0
    Quantity:
    Price:
    $7.95
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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