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COMETIC

COMETIC

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!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • COMETIC Rocker Gasket - Evo C9866

    COMETIC Rocker Gasket - Evo C9866

    COMETIC

    $61.30
    Rocker cover gaskets endure extreme temperature swings and constant pressure cycles—failure here means oil seepage, contamination, and potential engine damage. The COMETIC Rocker Gasket C9866...
    09340751
    SKU:
    09340751
    Availability:
    Ships Same Business Day
    Weight:
    0.57 LBS
    MATERIAL:
    VITON
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    GASKET
    UNITS:
    10 PACK
    THICKNESS:
    0,51 MM (0,020')
    TYPE:
    ROCKER COVER BASE
    THICKNESS IMPERIAL:
    0,020'
    THICKNESS METRIC:
    0.51 MM
    $61.30
    Qty in Cart: 0
    Quantity:
    Price:
    $61.30
    Subtotal:
  • COMETIC Rocker Gasket Kit - XL C9954

    COMETIC Rocker Gasket Kit - XL C9954

    COMETIC

    $65.05
    Rocker box gasket failure compromises engine sealing and invites oil leakage that can damage surrounding components. The COMETIC Rocker Gasket Kit C9954 delivers a complete sealing solution with...
    09340752
    SKU:
    09340752
    Availability:
    Ships Same Business Day
    Weight:
    0.38 LBS
    MODEL:
    EST
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET KIT
    MATERIAL:
    STEEL
    RIDING STYLE:
    STREET
    TYPE:
    ROCKER BOX
    Qty in Cart: 0
    Quantity:
    Price:
    $65.05
    Subtotal:
  • COMETIC Rocker Gasket - .020" C9986

    COMETIC Rocker Gasket - .020" C9986

    COMETIC

    $30.40
    Rocker cover gaskets endure extreme temperature cycling and constant pressure—a failure here means oil leaks, contamination, and potential engine damage. The COMETIC C9986 delivers reliable sealing...
    09340753
    SKU:
    09340753
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,020'
    PRODUCT NAME:
    GASKET
    THICKNESS:
    0,51 MM (0,020')
    TYPE:
    ROCKER COVER BASE
    UNITS:
    PAIR
    MATERIAL:
    VITON
    THICKNESS METRIC:
    0.51 MM
    $30.40
    Qty in Cart: 0
    Quantity:
    Price:
    $30.40
    Subtotal:
  • COMETIC Lower Pushrod Tube Seal C9461

    COMETIC Lower Pushrod Tube Seal C9461

    COMETIC

    $7.40
    Pushrod tube seals are critical to preventing oil leakage and maintaining proper lubrication in high-performance engines—failure here can lead to catastrophic damage under racing conditions. The...
    09350259
    SKU:
    09350259
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    APPLICATION:
    PUSHROD COVER
    MATERIAL:
    RUBBER
    PRODUCT NAME:
    X-RING
    RIDING STYLE:
    STREET
    TYPE:
    QUAD SEAL
    UNITS:
    10 PACK
    $7.40
    Qty in Cart: 0
    Quantity:
    Price:
    $7.40
    Subtotal:
  • COMETIC Oil Pump Cover O-Ring C9684

    COMETIC Oil Pump Cover O-Ring C9684

    COMETIC

    $3.95
    Oil pump cover o-rings fail silently, leading to leaks that compromise lubrication and engine reliability. This COMETIC seal restores the critical barrier between your oil pump and engine block,...
    09350260
    SKU:
    09350260
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    STREET
    APPLICATION:
    OIL PUMP
    UNITS:
    10 PACK
    MATERIAL:
    VITON
    PRODUCT NAME:
    O-RING
    Qty in Cart: 0
    Quantity:
    Price:
    $3.95
    Subtotal:
  • COMETIC Inner Primary Bearing Seal C9518

    COMETIC Inner Primary Bearing Seal C9518

    COMETIC

    $11.60
    Bearing seal failure leads to oil leakage, contamination, and catastrophic internal engine damage—especially in high-rpm applications where pressure and heat push standard seals beyond their limits...
    09350262
    SKU:
    09350262
    Availability:
    Ships Same Business Day
    Weight:
    0.21 LBS
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    SEAL
    APPLICATION:
    INNER PRIMARY
    MATERIAL:
    VITON
    UNITS:
    5 PACK
    Qty in Cart: 0
    Quantity:
    Price:
    $11.60
    Subtotal:
  • COMETIC Outer Rocker O-Ring C9224

    COMETIC Outer Rocker O-Ring C9224

    COMETIC

    $32.10
    Proper rocker cover sealing is critical to maintaining engine integrity and preventing oil leakage that can compromise performance and create costly cleanup issues. The COMETIC Outer Rocker O-Ring...
    09350264
    SKU:
    09350264
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    APPLICATION:
    LOWER ROCKER COVER
    PRODUCT NAME:
    SEAL
    MATERIAL:
    VITON
    RIDING STYLE:
    STREET
    UNITS:
    4 PACK
    Qty in Cart: 0
    Quantity:
    Price:
    $32.10
    Subtotal:
  • COMETIC Pushrod Tube O-Ring C9584

    COMETIC Pushrod Tube O-Ring C9584

    COMETIC

    $8.95
    Pushrod tube O-rings are critical wear items that prevent oil leakage at the cylinder head—a common failure point in high-revving engines. Using OEM-equivalent Viton® seals ensures you're maintaining...
    09350268
    SKU:
    09350268
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    APPLICATION:
    PUSHROD TUBE
    MATERIAL:
    VITON
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    SEAL
    UNITS:
    SET
    Qty in Cart: 0
    Quantity:
    Price:
    $8.95
    Subtotal:
  • COMETIC Pushrod Tube Seal Set C9585

    COMETIC Pushrod Tube Seal Set C9585

    COMETIC

    $8.95
    Pushrod tube seals are critical to maintaining oil pressure and preventing leakage in your engine's valvetrain. Over time, factory seals degrade and fail, resulting in oil weeping, reduced...
    09350269
    SKU:
    09350269
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    STREET
    UNITS:
    SET
    APPLICATION:
    PUSHROD TUBE
    MATERIAL:
    VITON
    PRODUCT NAME:
    SEAL
    $8.95
    Qty in Cart: 0
    Quantity:
    Price:
    $8.95
    Subtotal:
  • COMETIC Pushrod Tube O-Ring C9216

    COMETIC Pushrod Tube O-Ring C9216

    COMETIC

    $8.95
    Pushrod tube O-ring seals are critical for maintaining a leak-free valve train and preventing oil seepage that compromises engine reliability. COMETIC's Viton® seals deliver superior chemical...
    09350270
    SKU:
    09350270
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    SEAL
    RIDING STYLE:
    STREET
    UNITS:
    SET
    APPLICATION:
    PUSHROD TUBE
    MATERIAL:
    VITON
    Qty in Cart: 0
    Quantity:
    Price:
    $8.95
    Subtotal:
  • COMETIC Main Drive Gear Metal Seal C9493

    COMETIC Main Drive Gear Metal Seal C9493

    COMETIC

    $8.90
    The COMETIC Main Drive Gear Metal Seal C9493 is engineered to eliminate leakage at the main drive gear, a critical pressure point in high-performance engines where seal failure can compromise oil...
    09350194
    SKU:
    09350194
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    STREET
    UNITS:
    5 PACK
    APPLICATION:
    MAIN DRIVE GEAR
    MATERIAL:
    VITON
    PRODUCT NAME:
    SEAL
    $8.90
    Qty in Cart: 0
    Quantity:
    Price:
    $8.90
    Subtotal:
  • COMETIC Main Drive Gear Seal  Rubber C9372

    COMETIC Main Drive Gear Seal Rubber C9372

    COMETIC

    $8.40
    The COMETIC Main Drive Gear Seal (C9372) is engineered to prevent oil seepage and contamination at the main drive gear—a critical junction prone to leakage under high load and sustained RPM. A failed...
    09350195
    SKU:
    09350195
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    APPLICATION:
    MAIN DRIVE GEAR
    MATERIAL:
    VITON
    UNITS:
    5 PACK
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    SEAL
    $8.40
    Qty in Cart: 0
    Quantity:
    Price:
    $8.40
    Subtotal:
  • COMETIC Clutch Hub Nut Seal C9494

    COMETIC Clutch Hub Nut Seal C9494

    COMETIC

    $6.40
    A properly sealed clutch hub nut is critical to preventing fluid leakage and maintaining clutch system integrity under racing conditions. The COMETIC C9494 seals the interface where your clutch hub...
    09350196
    SKU:
    09350196
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    STREET
    MATERIAL:
    VITON
    UNITS:
    5 PACK
    STYLE:
    DUAL LIP
    APPLICATION:
    CLUTCH HUB
    PRODUCT NAME:
    SEAL
    $6.40
    Qty in Cart: 0
    Quantity:
    Price:
    $6.40
    Subtotal:
  • COMETIC Main Drive Gear Seal C9506

    COMETIC Main Drive Gear Seal C9506

    COMETIC

    $8.90
    A leaking main drive gear seal doesn't just waste oil—it risks catastrophic engine damage and costly downtime. The COMETIC C9506 delivers factory-grade sealing reliability without the factory wait...
    09350197
    SKU:
    09350197
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    APPLICATION:
    MAIN DRIVE GEAR
    UNITS:
    5 PACK
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    SEAL
    $8.90
    Qty in Cart: 0
    Quantity:
    Price:
    $8.90
    Subtotal:
  • COMETIC Inspection Cover Gasket - FX C9331F5

    COMETIC Inspection Cover Gasket - FX C9331F5

    COMETIC

    $18.40
    A leaking inspection cover gasket compromises engine seal integrity and can lead to oil seepage that damages surrounding components. The COMETIC C9331F5 delivers a precision-engineered seal that...
    20111495
    SKU:
    20111495
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    1.52 MM
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET
    THICKNESS IMPERIAL:
    0.060'
    UNITS:
    5 PACK
    TYPE:
    INSPECTION COVER
    THICKNESS:
    1,52 MM (0,060')
    $18.40
    Qty in Cart: 0
    Quantity:
    Price:
    $18.40
    Subtotal:
  • COMETIC O-Ring C10210

    COMETIC O-Ring C10210

    COMETIC

    $6.80
    A quality o-ring is the backbone of any sealed system—without proper sealing, you're looking at leaks, contamination, and catastrophic failure. The Cometic O-Ring C10210 delivers the precision fit...
    09350999
    SKU:
    09350999
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    PRODUCT NAME:
    O-RING
    RIDING STYLE:
    STREET
    APPLICATION:
    OIL PUMP
    UNITS:
    10 PACK
    $6.80
    Qty in Cart: 0
    Quantity:
    Price:
    $6.80
    Subtotal:
  • COMETIC Top End Gasket - Big Bore - Big Twin - EST C9767

    COMETIC Top End Gasket - Big Bore - Big Twin - EST C9767

    COMETIC

    $176.35
    A top-end rebuild demands precision sealing—any gasket failure means catastrophic engine damage and costly downtime. The COMETIC EST C9767 eliminates hot spots that cause premature gasket failure by...
    DS172079
    SKU:
    DS172079
    Availability:
    Ships Same Business Day
    Weight:
    0.69 LBS
    MATERIAL:
    STAINLESS STEEL
    BORE SIZE IMPERIAL:
    3.625'
    ENGINE TYPE:
    4-STROKE
    MATERIAL:
    RUBBER
    TYPE:
    TOP END
    UNITS:
    KIT
    BORE SIZE:
    3,625'
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    STREET
    $176.35
    Qty in Cart: 0
    Quantity:
    Price:
    $176.35
    Subtotal:
  • COMETIC Top End Gasket - Big Twin - EST C9635

    COMETIC Top End Gasket - Big Twin - EST C9635

    COMETIC

    $142.75
    A top-end rebuild demands gaskets engineered to survive extreme combustion temperatures and cylinder pressures—and Cometic's EST technology delivers exactly that. The embossed stainless steel...
    DS172080
    SKU:
    DS172080
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    BORE SIZE:
    3,500'
    BORE SIZE IMPERIAL:
    3.500'
    MATERIAL:
    RUBBER
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    ENGINE TYPE:
    4-STROKE
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    GASKET KIT
    TYPE:
    TOP END
    $142.75
    Qty in Cart: 0
    Quantity:
    Price:
    $142.75
    Subtotal:
  • COMETIC Top End Gasket - Big Twin - EST C9747

    COMETIC Top End Gasket - Big Twin - EST C9747

    COMETIC

    $142.75
    Gasket failure compromises cylinder sealing and leads to combustion pressure loss, oil leakage, and costly downtime. COMETIC's EST gaskets eliminate hot spots through advanced heat dissipation,...
    DS172081
    SKU:
    DS172081
    Availability:
    Ships Same Business Day
    Weight:
    0.69 LBS
    TYPE:
    TOP END
    RIDING STYLE:
    STREET
    BORE SIZE:
    3,500'
    BORE SIZE IMPERIAL:
    3.500'
    MATERIAL:
    RUBBER
    UNITS:
    KIT
    ENGINE TYPE:
    4-STROKE
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    GASKET KIT
    $142.75
    Qty in Cart: 0
    Quantity:
    Price:
    $142.75
    Subtotal:
  • COMETIC Top End Gasket Kit - Twin Cam 88 - EST C9779

    COMETIC Top End Gasket Kit - Twin Cam 88 - EST C9779

    COMETIC

    $183.70
    A top-end gasket failure can sideline your Twin Cam 88 when you can least afford it. COMETIC's EST (Extreme Sealing Technology) kits eliminate the guesswork with precision-engineered gaskets designed...
    DS172084
    SKU:
    DS172084
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    MATERIAL:
    RUBBER
    MATERIAL:
    STAINLESS STEEL
    BORE SIZE IMPERIAL:
    3.750'
    UNITS:
    KIT
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    STREET
    TYPE:
    TOP END
    BORE SIZE:
    3,750'
    THICKNESS IMPERIAL:
    0,040'
    THICKNESS METRIC:
    1.02 MM
    $183.70
    Qty in Cart: 0
    Quantity:
    Price:
    $183.70
    Subtotal:
  • COMETIC Engine Gasket Kit - 110" C10157

    COMETIC Engine Gasket Kit - 110" C10157

    COMETIC

    $287.65
    A complete gasket failure can sideline your engine and derail your season. The COMETIC C10157 110" gasket kit uses purpose-engineered materials for each sealing application, ensuring reliable...
    09345074
    SKU:
    09345074
    Availability:
    Ships Same Business Day
    Weight:
    1.91 LBS
    RIDING STYLE:
    STREET
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    MATERIAL:
    STEEL
    TYPE:
    COMPLETE
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET KIT
    THICKNESS IMPERIAL:
    0,040'
    THICKNESS METRIC:
    1.02 MM
    $287.65
    Qty in Cart: 0
    Quantity:
    Price:
    $287.65
    Subtotal:
  • COMETIC Engine Gasket Kit - 110" C10157-030

    COMETIC Engine Gasket Kit - 110" C10157-030

    COMETIC

    $287.65
    A complete engine gasket failure can leave you stranded—or worse, damage an otherwise solid build. The COMETIC C10157-030 gasket kit eliminates guesswork by providing OEM-quality sealing across your...
    09345075
    SKU:
    09345075
    Availability:
    Ships Same Business Day
    Weight:
    1.70 LBS
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,030'
    THICKNESS METRIC:
    0.76 MM
    MATERIAL:
    STEEL
    TYPE:
    COMPLETE
    UNITS:
    KIT
    $287.65
    Qty in Cart: 0
    Quantity:
    Price:
    $287.65
    Subtotal:
  • COMETIC Top End Gasket Kit - 883 C9194

    COMETIC Top End Gasket Kit - 883 C9194

    COMETIC

    $229.90
    A failing top-end gasket can compromise combustion chamber integrity and lead to costly coolant leaks or compression loss. The COMETIC C9194 eliminates guesswork by supplying every gasket, seal, and...
    09344805
    SKU:
    09344805
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    BORE SIZE IMPERIAL:
    3.000'
    MATERIAL:
    VITON
    RIDING STYLE:
    STREET
    BORE SIZE:
    3,000'
    PRODUCT NAME:
    GASKET KIT
    UNITS:
    KIT
    ENGINE TYPE:
    4-STROKE
    MATERIAL:
    RUBBER
    MATERIAL:
    STEEL
    TYPE:
    TOP END
    DISPLACEMENT:
    883 CC
    THICKNESS IMPERIAL:
    0,030'
    THICKNESS METRIC:
    0.76 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $229.90
    Subtotal:
  • COMETIC Primary Gasket Kit C9210

    COMETIC Primary Gasket Kit C9210

    COMETIC

    $56.65
    A primary gasket kit is fundamental to any high-performance engine build—seal failure leads to oil weeping, contamination, and power loss. Cometic's AFM material delivers the reliability you need for...
    09344806
    SKU:
    09344806
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    RIDING STYLE:
    STREET
    TYPE:
    PRIMARY
    UNITS:
    KIT
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET KIT
    $56.65
    Qty in Cart: 0
    Quantity:
    Price:
    $56.65
    Subtotal:
  • COMETIC Primary Gasket C9309F1

    COMETIC Primary Gasket C9309F1

    COMETIC

    $45.10
    A properly sealed primary cover is critical to maintaining oil pressure, preventing leakage, and extending engine life—especially in high-performance applications where thermal cycling and vibration...
    09344808
    SKU:
    09344808
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    1.52 MM
    TYPE:
    PRIMARY
    THICKNESS:
    1,52 MM (0,060')
    UNITS:
    EACH
    THICKNESS IMPERIAL:
    0.060'
    Qty in Cart: 0
    Quantity:
    Price:
    $45.10
    Subtotal:
  • COMETIC Primary Gasket - Softail C9607F1

    COMETIC Primary Gasket - Softail C9607F1

    COMETIC

    $45.10
    A properly sealed primary case is non-negotiable for reliable Softail performance—leaks compromise your engine's integrity and create maintenance headaches. The COMETIC Primary Gasket C9607F1...
    09344809
    SKU:
    09344809
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    PRODUCT NAME:
    GASKET
    TYPE:
    PRIMARY
    RIDING STYLE:
    STREET
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    UNITS:
    EACH
    $45.10
    Qty in Cart: 0
    Quantity:
    Price:
    $45.10
    Subtotal:
  • COMETIC Engine Gasket Kit - EVO/XL C9755F

    COMETIC Engine Gasket Kit - EVO/XL C9755F

    COMETIC

    $257.20
    A quality gasket kit is the foundation of reliable engine sealing—leaks, compression loss, and coolant mixing can cascade into catastrophic engine failure. The COMETIC C9755F delivers multi-layer...
    09344812
    SKU:
    09344812
    Availability:
    Ships Same Business Day
    Weight:
    1.81 LBS
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    BORE SIZE IMPERIAL:
    3.000'
    RIDING STYLE:
    STREET
    BORE SIZE:
    3,000'
    UNITS:
    KIT
    MATERIAL:
    RUBBER
    MATERIAL:
    STEEL
    PRODUCT NAME:
    GASKET KIT
    TYPE:
    COMPLETE
    $257.20
    Qty in Cart: 0
    Quantity:
    Price:
    $257.20
    Subtotal:
  • COMETIC Complete Gasket Kit - Big Twin C10112

    COMETIC Complete Gasket Kit - Big Twin C10112

    COMETIC

    $209.95
    A complete gasket failure can leave you stranded mid-season or cost you a race. COMETIC's Big Twin C10112 kit eliminates the guesswork by providing OEM-quality gaskets for every critical seal on your...
    09344733
    SKU:
    09344733
    Availability:
    Ships Same Business Day
    Weight:
    1.90 LBS
    MATERIAL:
    STEEL
    TYPE:
    COMPLETE
    UNITS:
    KIT
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET KIT
    THICKNESS IMPERIAL:
    0,030'
    THICKNESS METRIC:
    0.76 MM
    BORE SIZE:
    3,937'
    BORE SIZE IMPERIAL:
    3.937'
    MATERIAL:
    VITON
    RIDING STYLE:
    STREET
    Qty in Cart: 0
    Quantity:
    Price:
    $209.95
    Subtotal:
  • COMETIC Complete Gasket Kit - Big Twin C10113

    COMETIC Complete Gasket Kit - Big Twin C10113

    COMETIC

    $209.95
    A complete gasket failure can cost you days in the shop and thousands in lost racing time. The COMETIC Complete Gasket Kit for Big Twin engines eliminates guesswork by pairing the right material to...
    09344734
    SKU:
    09344734
    Availability:
    Ships Same Business Day
    Weight:
    1.85 LBS
    BORE SIZE IMPERIAL:
    4.060'
    MATERIAL:
    STEEL
    PRODUCT NAME:
    GASKET KIT
    TYPE:
    COMPLETE
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,040'
    THICKNESS METRIC:
    1.02 MM
    UNITS:
    KIT
    BORE SIZE:
    4,060'
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    MATERIAL:
    VITON
    $209.95
    Qty in Cart: 0
    Quantity:
    Price:
    $209.95
    Subtotal:
  • COMETIC Primary Filler O-Ring C9446

    COMETIC Primary Filler O-Ring C9446

    COMETIC

    $5.30
    A leaking primary cover gasket can compromise your engine's performance and longevity by allowing fuel and oil to escape where they shouldn't. The COMETIC Primary Filler O-Ring C9446 seals your...
    09344704
    SKU:
    09344704
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    APPLICATION:
    FILLER
    MATERIAL:
    NITRILE RUBBER
    UNITS:
    10 PACK
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    O-RING
    Qty in Cart: 0
    Quantity:
    Price:
    $5.30
    Subtotal:
  • COMETIC Head Gasket C9564-2

    COMETIC Head Gasket C9564-2

    COMETIC

    $23.05
    A head gasket failure can compromise your engine's integrity and cost you significant downtime and money. The COMETIC C9564-2 delivers reliable sealing across demanding racing and high-performance...
    09344708
    SKU:
    09344708
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    STREET
    MATERIAL:
    COPPER
    PRODUCT NAME:
    GASKET
    THICKNESS:
    0,81 MM (0,032')
    THICKNESS METRIC:
    0.81 MM
    UNITS:
    PAIR
    THICKNESS IMPERIAL:
    0,032'
    TYPE:
    CYLINDER HEAD
    $23.05
    Qty in Cart: 0
    Quantity:
    Price:
    $23.05
    Subtotal:
  • COMETIC Head Gasket C9565-2

    COMETIC Head Gasket C9565-2

    COMETIC

    $23.05
    A head gasket is your engine's first line of defense against combustion pressure, coolant leaks, and oil bypass—and it demands precision engineering to perform under extreme conditions. The COMETIC...
    09344709
    SKU:
    09344709
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,032'
    MATERIAL:
    COPPER
    PRODUCT NAME:
    GASKET
    THICKNESS:
    0,81 MM (0,032')
    UNITS:
    PAIR
    THICKNESS METRIC:
    0.81 MM
    TYPE:
    CYLINDER HEAD
    $23.05
    Qty in Cart: 0
    Quantity:
    Price:
    $23.05
    Subtotal:
  • COMETIC Head Gasket C9566-2

    COMETIC Head Gasket C9566-2

    COMETIC

    $23.05
    A head gasket is your engine's critical seal against combustion pressure, coolant leakage, and oil seepage. The COMETIC C9566-2 uses multi-layer steel construction with load-control embossments to...
    09344710
    SKU:
    09344710
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,043'
    MATERIAL:
    COPPER
    PRODUCT NAME:
    GASKET
    THICKNESS METRIC:
    1.09 MM
    THICKNESS:
    1,09 MM (0,043')
    TYPE:
    CYLINDER HEAD
    UNITS:
    PAIR
    $23.05
    Qty in Cart: 0
    Quantity:
    Price:
    $23.05
    Subtotal:
  • COMETIC Cylinder Base Gasket C9603-2

    COMETIC Cylinder Base Gasket C9603-2

    COMETIC

    $6.95
    A properly sealed cylinder base is critical to maintaining compression and preventing oil leakage on your Sportster. The COMETIC Cylinder Base Gasket C9603-2 is engineered to withstand the thermal...
    09344715
    SKU:
    09344715
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    GASKET
    THICKNESS:
    0,79 MM (0,031')
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    0.79 MM
    MATERIAL:
    FIBER
    TYPE:
    CYLINDER BASE
    UNITS:
    PAIR
    BORE SIZE IMPERIAL:
    STANDARD
    THICKNESS IMPERIAL:
    0,031'
    $6.95
    Qty in Cart: 0
    Quantity:
    Price:
    $6.95
    Subtotal:
  • COMETIC Pushrod Cover Seals C9606

    COMETIC Pushrod Cover Seals C9606

    COMETIC

    $6.40
    Pushrod cover leaks are a silent killer of engine cleanliness and long-term reliability. The COMETIC C9606 Pushrod Cover Seals kit contains OEM-equivalent seals and O-rings engineered to eliminate...
    09344716
    SKU:
    09344716
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    RIDING STYLE:
    STREET
    TYPE:
    PUSHROD COVER
    UNITS:
    25 PACK
    PRODUCT NAME:
    GASKET
    Qty in Cart: 0
    Quantity:
    Price:
    $6.40
    Subtotal:
  • COMETIC Cylinder Base Gasket C9618

    COMETIC Cylinder Base Gasket C9618

    COMETIC

    $11.95
    A compromised cylinder base gasket will rob your Sportster of compression and invite oil seepage into your cases—two problems that compound quickly into expensive downtime. The COMETIC C9618 cylinder...
    09344718
    SKU:
    09344718
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BORE SIZE IMPERIAL:
    3.625'
    TYPE:
    CYLINDER BASE
    UNITS:
    PAIR
    THICKNESS:
    0,79 MM (0,031')
    THICKNESS IMPERIAL:
    0,031'
    PRODUCT NAME:
    GASKET
    MATERIAL:
    FIBER
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    0.79 MM
    $11.95
    Qty in Cart: 0
    Quantity:
    Price:
    $11.95
    Subtotal:
  • COMETIC Head Gasket C9698-2

    COMETIC Head Gasket C9698-2

    COMETIC

    $34.60
    A reliable head gasket is critical to maintaining combustion chamber integrity, oil containment, and coolant sealing under extreme pressure and temperature cycles. The COMETIC C9698-2 delivers...
    09344719
    SKU:
    09344719
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    TYPE:
    CYLINDER HEAD
    UNITS:
    PAIR
    MATERIAL:
    COPPER
    PRODUCT NAME:
    GASKET
    THICKNESS:
    0,51 MM (0,020')
    THICKNESS METRIC:
    0.51 MM
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,020'
    Qty in Cart: 0
    Quantity:
    Price:
    $34.60
    Subtotal:
  • COMETIC Cam Service Gasket Kit C9624F

    COMETIC Cam Service Gasket Kit C9624F

    COMETIC

    $26.20
    A cam change demands precision—and that starts with the right gasket kit. The COMETIC C9624F eliminates guesswork by bundling every seal, gasket, and O-ring you need for a complete, leak-free cam...
    09341358
    SKU:
    09341358
    Availability:
    Ships Same Business Day
    Weight:
    0.29 LBS
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    TYPE:
    CAM CHANGE
    PRODUCT NAME:
    GASKET KIT
    $26.20
    Qty in Cart: 0
    Quantity:
    Price:
    $26.20
    Subtotal:
  • COMETIC Oil Pump Paper Gasket C9383

    COMETIC Oil Pump Paper Gasket C9383

    COMETIC

    $7.40
    A failing oil pump gasket compromises engine lubrication and can lead to catastrophic bearing wear or complete engine failure. The COMETIC Oil Pump Paper Gasket C9383 provides a reliable OEM-quality...
    09341361
    SKU:
    09341361
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    THICKNESS METRIC:
    0.25 MM
    MATERIAL:
    VULCANIZED FIBER
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    THICKNESS:
    0,25 MM (0,010')
    THICKNESS IMPERIAL:
    0,010'
    TYPE:
    OIL PUMP
    UNITS:
    10 PACK
    MATERIAL:
    PAPER
    Qty in Cart: 0
    Quantity:
    Price:
    $7.40
    Subtotal:
  • COMETIC Oil Pump Paper Gasket C9381

    COMETIC Oil Pump Paper Gasket C9381

    COMETIC

    $7.40
    A failing oil pump gasket compromises engine lubrication and invites catastrophic bearing damage—this is non-negotiable for any serious build. The COMETIC C9381 delivers OEM-equivalent sealing...
    09341362
    SKU:
    09341362
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MATERIAL:
    PAPER
    RIDING STYLE:
    STREET
    MATERIAL:
    VULCANIZED FIBER
    PRODUCT NAME:
    GASKET
    TYPE:
    OIL PUMP
    UNITS:
    10 PACK
    $7.40
    Qty in Cart: 0
    Quantity:
    Price:
    $7.40
    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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