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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 Head Gasket - 3.875" x .030" C10081-030

    COMETIC Head Gasket - 3.875" x .030" C10081-030

    COMETIC

    $62.79
    A quality head gasket is non-negotiable for engine reliability and performance—it's the critical seal that prevents combustion blow-by and coolant leaks under extreme pressure and temperature. The...
    09343143
    SKU:
    09343143
    Availability:
    Ships Same Business Day
    Weight:
    0.21 LBS
    THICKNESS:
    0,76 MM (0,030')
    THICKNESS IMPERIAL:
    0,030'
    BORE SIZE:
    3,875'
    MATERIAL:
    VITON
    BORE SIZE IMPERIAL:
    3.875'
    TYPE:
    CYLINDER HEAD
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    0.76 MM
    UNITS:
    PAIR
    $62.79
    Qty in Cart: 0
    Quantity:
    Price:
    $62.79
    Subtotal:
  • COMETIC Head Gasket - 3.875" x .040" C10081-040

    COMETIC Head Gasket - 3.875" x .040" C10081-040

    COMETIC

    $62.79
    A quality head gasket is the foundation of a reliable engine seal—one leak can compromise compression, efficiency, and power output. The COMETIC C10081-040 uses Multi-Layer Steel (MLS) construction...
    09343144
    SKU:
    09343144
    Availability:
    Ships Same Business Day
    Weight:
    0.36 LBS
    BORE SIZE IMPERIAL:
    3.875'
    MATERIAL:
    VITON
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    1.02 MM
    UNITS:
    PAIR
    THICKNESS IMPERIAL:
    0,040'
    BORE SIZE:
    3,875'
    THICKNESS:
    1,02 MM (0,040')
    TYPE:
    CYLINDER HEAD
    $62.79
    Qty in Cart: 0
    Quantity:
    Price:
    $62.79
    Subtotal:
  • COMETIC Head Gasket - 3.937"x .040" C10083-040

    COMETIC Head Gasket - 3.937"x .040" C10083-040

    COMETIC

    $62.79
    A head gasket is your engine's first line of defense against combustion pressure, coolant leaks, and oil seepage—and choosing the right one directly impacts reliability and performance. The COMETIC...
    09343146
    SKU:
    09343146
    Availability:
    Ships Same Business Day
    Weight:
    0.26 LBS
    BORE SIZE:
    3,937'
    BORE SIZE IMPERIAL:
    3.937'
    MATERIAL:
    VITON
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    GASKET
    THICKNESS METRIC:
    1.02 MM
    UNITS:
    PAIR
    THICKNESS:
    1,02 MM (0,040')
    THICKNESS IMPERIAL:
    0,040'
    TYPE:
    CYLINDER HEAD
    $62.79
    Qty in Cart: 0
    Quantity:
    Price:
    $62.79
    Subtotal:
  • COMETIC Head Gasket - 4.060" x .040" C10085-040

    COMETIC Head Gasket - 4.060" x .040" C10085-040

    COMETIC

    $62.79
    A head gasket failure can cost you an engine, and a poor seal costs you power—neither option is acceptable on the track or in your build. The COMETIC C10085-040 uses advanced MLS construction with...
    09343150
    SKU:
    09343150
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    THICKNESS IMPERIAL:
    0,040'
    THICKNESS METRIC:
    1.02 MM
    BORE SIZE IMPERIAL:
    4.060'
    MATERIAL:
    VITON
    BORE SIZE:
    4,060'
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    THICKNESS:
    1,02 MM (0,040')
    TYPE:
    CYLINDER HEAD
    UNITS:
    PAIR
    $62.79
    Qty in Cart: 0
    Quantity:
    Price:
    $62.79
    Subtotal:
  • COMETIC Head Gasket - 4.160" x .030" C10087-030

    COMETIC Head Gasket - 4.160" x .030" C10087-030

    COMETIC

    $62.79
    A head gasket is your engine's critical seal against combustion pressure, coolant leaks, and oil contamination—failure here means catastrophic engine damage. The COMETIC C10087-030 uses multi-layer...
    09343153
    SKU:
    09343153
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    BORE SIZE IMPERIAL:
    4.160'
    THICKNESS:
    0,76 MM (0,030')
    THICKNESS IMPERIAL:
    0,030'
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    BORE SIZE:
    4,160'
    MATERIAL:
    VITON
    THICKNESS METRIC:
    0.76 MM
    TYPE:
    CYLINDER HEAD
    UNITS:
    PAIR
    $62.79
    Qty in Cart: 0
    Quantity:
    Price:
    $62.79
    Subtotal:
  • COMETIC Head Gasket - 4.250" x .030" C10088-030

    COMETIC Head Gasket - 4.250" x .030" C10088-030

    COMETIC

    $62.79
    A head gasket failure can derail your entire engine build, costing you time and money on the track or in the shop. The COMETIC C10088-030 MLS head gasket delivers reliable sealing across demanding...
    09343155
    SKU:
    09343155
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    BORE SIZE:
    4,250'
    BORE SIZE IMPERIAL:
    4.250'
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    0.76 MM
    UNITS:
    PAIR
    MATERIAL:
    VITON
    THICKNESS:
    0,76 MM (0,030')
    TYPE:
    CYLINDER HEAD
    THICKNESS IMPERIAL:
    0,030'
    $62.79
    Qty in Cart: 0
    Quantity:
    Price:
    $62.79
    Subtotal:
  • COMETIC Engine Gasket Kit - Big Twin C10091

    COMETIC Engine Gasket Kit - Big Twin C10091

    COMETIC

    $141.70
    A complete gasket kit failure can leave your engine leaking, contaminated, or completely sidelined. The COMETIC C10091 Big Twin Engine Gasket Kit uses purpose-engineered materials—from Multi-Layer...
    09344068
    SKU:
    09344068
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    MATERIAL:
    STEEL
    TYPE:
    MOTOR
    UNITS:
    KIT
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    GASKET KIT
    $141.70
    Qty in Cart: 0
    Quantity:
    Price:
    $141.70
    Subtotal:
  • COMETIC Complete Gasket Kit - Softail C9221

    COMETIC Complete Gasket Kit - Softail C9221

    COMETIC

    $220.45
    A complete gasket failure can sideline your Softail and cost you thousands in engine damage. The COMETIC Complete Gasket Kit C9221 eliminates guesswork by delivering OEM-quality sealing across your...
    09341657
    SKU:
    09341657
    Availability:
    Ships Same Business Day
    Weight:
    1.95 LBS
    MATERIAL:
    STEEL
    UNITS:
    KIT
    MATERIAL:
    VITON
    TYPE:
    COMPLETE
    BORE SIZE:
    4,125'
    BORE SIZE IMPERIAL:
    4.125'
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,040'
    THICKNESS METRIC:
    1.02 MM
    $220.45
    Qty in Cart: 0
    Quantity:
    Price:
    $220.45
    Subtotal:
  • COMETIC Complete Gasket Kit - FXD C9221-030

    COMETIC Complete Gasket Kit - FXD C9221-030

    COMETIC

    $220.45
    A complete gasket kit eliminates the guesswork when rebuilding or refreshing your FXD engine—you get every seal you need in one purchase, eliminating multiple orders and potential fitment mismatches...
    09341658
    SKU:
    09341658
    Availability:
    Ships Same Business Day
    Weight:
    1.81 LBS
    MATERIAL:
    STEEL
    TYPE:
    COMPLETE
    UNITS:
    KIT
    BORE SIZE:
    4,125'
    BORE SIZE IMPERIAL:
    4.125'
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET KIT
    MATERIAL:
    VITON
    THICKNESS IMPERIAL:
    0,030'
    THICKNESS METRIC:
    0.76 MM
    RIDING STYLE:
    STREET
    $220.45
    Qty in Cart: 0
    Quantity:
    Price:
    $220.45
    Subtotal:
  • COMETIC Complete Gasket Kit - FL C9222-030

    COMETIC Complete Gasket Kit - FL C9222-030

    COMETIC

    $220.45
    A complete gasket kit eliminates the guesswork of sourcing individual sealing components—and prevents costly leaks that compromise engine reliability and performance. COMETIC's FL C9222-030 delivers...
    09341660
    SKU:
    09341660
    Availability:
    Ships Same Business Day
    Weight:
    1.71 LBS
    MATERIAL:
    STEEL
    TYPE:
    COMPLETE
    UNITS:
    KIT
    MATERIAL:
    VITON
    THICKNESS IMPERIAL:
    0,030'
    THICKNESS METRIC:
    0.76 MM
    BORE SIZE:
    4,125'
    BORE SIZE IMPERIAL:
    4.125'
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    STREET
    $220.45
    Qty in Cart: 0
    Quantity:
    Price:
    $220.45
    Subtotal:
  • COMETIC Top End Gasket - Twin Cam - 4-1/8" C9976

    COMETIC Top End Gasket - Twin Cam - 4-1/8" C9976

    COMETIC

    $157.60
    If you're rebuilding a Twin Cam top end, a failed gasket can cost you serious downtime and money. The COMETIC C9976 eliminates guesswork by delivering a complete, precision-engineered gasket kit with...
    09341662
    SKU:
    09341662
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    MATERIAL:
    RUBBER
    THICKNESS METRIC:
    1.02 MM
    UNITS:
    KIT
    BORE SIZE:
    4,125'
    BORE SIZE IMPERIAL:
    4.125'
    TYPE:
    TOP END
    ENGINE TYPE:
    4-STROKE
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    GASKET KIT
    THICKNESS METRIC:
    0.51 MM
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,020'
    THICKNESS IMPERIAL:
    0,040'
    $157.60
    Qty in Cart: 0
    Quantity:
    Price:
    $157.60
    Subtotal:
  • COMETIC Carb Back Plate Gasket C9626F

    COMETIC Carb Back Plate Gasket C9626F

    COMETIC

    $13.50
    A carburetor back plate gasket is a critical seal that prevents fuel and air leaks between your carb and intake manifold—leaks that kill performance and create safety hazards. The COMETIC C9626F...
    09341342
    SKU:
    09341342
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    1.52 MM
    TYPE:
    CARBURETOR BACKING PLATE
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET
    THICKNESS IMPERIAL:
    0.060'
    UNITS:
    10 PACK
    THICKNESS:
    1,52 MM (0,060')
    $13.50
    Qty in Cart: 0
    Quantity:
    Price:
    $13.50
    Subtotal:
  • COMETIC Filter Mount Gasket C9634F

    COMETIC Filter Mount Gasket C9634F

    COMETIC

    $13.90
    A reliable filter mount gasket is critical to maintaining a sealed intake system and preventing vacuum leaks that degrade performance and fuel economy. The COMETIC C9634F uses a proven aluminum...
    09341343
    SKU:
    09341343
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    1.52 MM
    THICKNESS:
    1,52 MM (0,060')
    THICKNESS IMPERIAL:
    0.060'
    TYPE:
    AIR FILTER
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET
    TYPE:
    BACKPLATE
    UNITS:
    10 PACK
    Qty in Cart: 0
    Quantity:
    Price:
    $13.90
    Subtotal:
  • COMETIC Rear Tapped Gasket - Big Twin C9297F

    COMETIC Rear Tapped Gasket - Big Twin C9297F

    COMETIC

    $5.30
    A properly sealed engine is the foundation of reliable performance, and Cometic's rear tapped gasket eliminates the weak point where your Big Twin crankcase meets the transmission. This...
    09341351
    SKU:
    09341351
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    THICKNESS:
    0,81 MM (0,032')
    UNITS:
    10 PACK
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET
    TYPE:
    TAPPET GUIDE
    MOUNTING POSITION:
    REAR
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,032'
    THICKNESS METRIC:
    0.81 MM
    $5.30
    Qty in Cart: 0
    Quantity:
    Price:
    $5.30
    Subtotal:
  • COMETIC Front Tappet Gasket - Big Twin C9298F

    COMETIC Front Tappet Gasket - Big Twin C9298F

    COMETIC

    $6.40
    The COMETIC Front Tappet Gasket is engineered to eliminate oil seepage at the tappet cover, a common failure point on Big Twin engines. A compromised gasket leads to messy leaks, potential oil...
    09341352
    SKU:
    09341352
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET
    THICKNESS:
    0,81 MM (0,032')
    TYPE:
    TAPPET GUIDE
    UNITS:
    10 PACK
    THICKNESS METRIC:
    0.81 MM
    RIDING STYLE:
    STREET
    MOUNTING POSITION:
    FRONT
    THICKNESS IMPERIAL:
    0,032'
    $6.40
    Qty in Cart: 0
    Quantity:
    Price:
    $6.40
    Subtotal:
  • COMETIC Head Gasket - .03" - Evo - 3.75" C9694 COMETIC Head Gasket - .03" - Evo - 3.75" C9694

    COMETIC Head Gasket - .03" - Evo - 3.75" C9694

    COMETIC

    $61.90
    A quality head gasket is critical to maintaining cylinder pressure, preventing coolant and oil leakage, and preserving engine reliability under boost or high RPM conditions. The COMETIC .03" MLS...
    09341353
    SKU:
    09341353
    Availability:
    Ships Same Business Day
    Weight:
    0.18 LBS
    MATERIAL:
    VITON
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    0.76 MM
    PRODUCT NAME:
    GASKET
    UNITS:
    PAIR
    BORE SIZE IMPERIAL:
    3.750'
    THICKNESS IMPERIAL:
    0,030'
    BORE SIZE:
    3,750'
    MATERIAL:
    LAYERED STEEL
    THICKNESS:
    0,76 MM (0,030')
    TYPE:
    CYLINDER HEAD
    Qty in Cart: 0
    Quantity:
    Price:
    $61.90
    Subtotal:
  • COMETIC Head Gasket -  .04" - 3 13/16" C9693

    COMETIC Head Gasket - .04" - 3 13/16" C9693

    COMETIC

    $64.99
    A head gasket failure will cost you far more in downtime and engine damage than the price of a quality replacement. The Cometic C9693 uses multi-layer steel construction with load control embossments...
    09341356
    SKU:
    09341356
    Availability:
    Ships Same Business Day
    Weight:
    0.23 LBS
    PRODUCT NAME:
    GASKET
    THICKNESS:
    1,02 MM (0,040')
    BORE SIZE:
    3,8125'
    BORE SIZE IMPERIAL:
    3.8125'
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,040'
    TYPE:
    CYLINDER HEAD
    MATERIAL:
    LAYERED STEEL
    UNITS:
    PAIR
    THICKNESS METRIC:
    1.02 MM
    $64.99
    Qty in Cart: 0
    Quantity:
    Price:
    $64.99
    Subtotal:
  • COMETIC Shift Sleeve O-Ring C9484

    COMETIC Shift Sleeve O-Ring C9484

    COMETIC

    $9.50
    Shift sleeve o-rings endure extreme heat, pressure, and fuel exposure during performance driving—and failure means transmission fluid leakage, loss of shift precision, and costly downtime. The...
    09341372
    SKU:
    09341372
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MATERIAL:
    VITON
    RIDING STYLE:
    STREET
    UNITS:
    25 PACK
    PRODUCT NAME:
    O-RING
    APPLICATION:
    SHIFTER LEVER
    Qty in Cart: 0
    Quantity:
    Price:
    $9.50
    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...
    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...
    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...
    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...
    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 Top End Gasket Set - Suzuki C7778

    COMETIC Top End Gasket Set - Suzuki C7778

    COMETIC

    $40.95
    If you're rebuilding your top end or pushing higher horsepower through forced induction, a quality gasket set is non-negotiable—factory gaskets often fail under sustained boost or aggressive tuning...
    C7778
    SKU:
    C7778
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    GASKET KIT
    UNITS:
    KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    Qty in Cart: 0
    Quantity:
    Price:
    $40.95
    Subtotal:
  • COMETIC Top End Hi-Performance Gasket Set C7798

    COMETIC Top End Hi-Performance Gasket Set C7798

    COMETIC

    $82.95
    A quality gasket set is non-negotiable when rebuilding a top end—failure here means wasted machine work and lost track time. The COMETIC C7798 combines multi-layered MLS technology with Extreme...
    C7798
    SKU:
    C7798
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    TYPE:
    TOP END
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    ATV
    BORE SIZE METRIC:
    102.00 MM
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $82.95
    Subtotal:
  • COMETIC Shift Shaft Seal OS236

    COMETIC Shift Shaft Seal OS236

    COMETIC

    $5.95
    Countershaft seal leaks are a common failure point that can compromise your transmission fluid integrity and lead to costly damage if left unaddressed. The COMETIC OS236 Shift Shaft Seal delivers...
    09350875
    SKU:
    09350875
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    APPLICATION:
    SHIFTER SHAFT
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    SEAL
    UNITS:
    EACH
    $5.95
    Qty in Cart: 0
    Quantity:
    Price:
    $5.95
    Subtotal:
  • COMETIC Shift Shaft Seal OS197

    COMETIC Shift Shaft Seal OS197

    COMETIC

    $4.95
    Countershaft seal failure is one of the most common sources of transmission fluid loss in high-performance engines, leading to costly internal damage if left unaddressed. The COMETIC Shift Shaft Seal...
    09350899
    SKU:
    09350899
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    SEAL
    UNITS:
    EACH
    APPLICATION:
    SHIFTER SHAFT
    RIDING STYLE:
    STREET
    Qty in Cart: 0
    Quantity:
    Price:
    $4.95
    Subtotal:
  • COMETIC Shift Shaft Seal OS305

    COMETIC Shift Shaft Seal OS305

    COMETIC

    $8.95
    Countershaft seal leaks are a common failure point in high-performance applications, leading to oil contamination and premature wear on critical drivetrain components. The COMETIC Shift Shaft Seal...
    09350904
    SKU:
    09350904
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    PRODUCT NAME:
    SEAL
    UNITS:
    EACH
    APPLICATION:
    SHIFTER SHAFT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    $8.95
    Qty in Cart: 0
    Quantity:
    Price:
    $8.95
    Subtotal:
  • COMETIC Shift Shaft Seal OS331

    COMETIC Shift Shaft Seal OS331

    COMETIC

    $6.95
    Countershaft sprocket seals are critical to preventing gear oil leaks that compromise engine performance and create costly maintenance headaches. The COMETIC OS331 is engineered to maintain precise...
    09350906
    SKU:
    09350906
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    PRODUCT NAME:
    SEAL
    UNITS:
    EACH
    APPLICATION:
    SHIFTER SHAFT
    RIDING STYLE:
    STREET
    $6.95
    Qty in Cart: 0
    Quantity:
    Price:
    $6.95
    Subtotal:
  • COMETIC Countershaft Seal OS415

    COMETIC Countershaft Seal OS415

    COMETIC

    $16.95
    A compromised countershaft seal doesn't just leak oil—it invites contamination into your transmission and risks catastrophic drivetrain failure. The COMETIC Countershaft Seal OS415 restores proper...
    09350929
    SKU:
    09350929
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    APPLICATION:
    COUNTERSHAFT
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    SEAL
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • COMETIC Countershaft Seal OS416

    COMETIC Countershaft Seal OS416

    COMETIC

    $35.95
    Countershaft seal leaks are a common maintenance issue that can compromise your transmission's integrity and lead to costly damage if left unaddressed. The COMETIC Countershaft Seal OS416 is...
    09350930
    SKU:
    09350930
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    PRODUCT NAME:
    SEAL
    APPLICATION:
    COUNTERSHAFT
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • COMETIC Crank Seal Kit C2070CS

    COMETIC Crank Seal Kit C2070CS

    COMETIC

    $12.95
    Crank seal failure leads to oil leakage, contamination, and catastrophic engine damage—especially under high RPM stress. The COMETIC Crank Seal Kit C2070CS delivers OE-quality sealing performance...
    09350664
    SKU:
    09350664
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    APPLICATION:
    CRANKSHAFT
    RIDING STYLE:
    SNOW
    TYPE:
    OIL
    UNITS:
    KIT
    PRODUCT NAME:
    SEAL
    Qty in Cart: 0
    Quantity:
    Price:
    $12.95
    Subtotal:
  • COMETIC Top End Gaskets - KTM C3606

    COMETIC Top End Gaskets - KTM C3606

    COMETIC

    $78.70
    A failed top end gasket can cost you race time, engine damage, and hundreds in repairs. COMETIC's C3606 gasket kit gives you OE-spec sealing with the durability trusted by professional racers...
    09345414
    SKU:
    09345414
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    PRODUCT NAME:
    GASKET SET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    SET
    $78.70
    Qty in Cart: 0
    Quantity:
    Price:
    $78.70
    Subtotal:
  • COMETIC Lower End Gaskets - KTM C3606BE

    COMETIC Lower End Gaskets - KTM C3606BE

    COMETIC

    $121.75
    Maintaining proper compression and preventing fluid leakage is critical to reliable engine performance, especially in high-stress racing applications. COMETIC lower end gaskets are engineered to OEM...
    09345415
    SKU:
    09345415
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    PRODUCT NAME:
    GASKET SET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    BOTTOM END
    UNITS:
    SET
    $121.75
    Qty in Cart: 0
    Quantity:
    Price:
    $121.75
    Subtotal:
  • COMETIC Top End Gasket Set - Husqvarna C7734

    COMETIC Top End Gasket Set - Husqvarna C7734

    COMETIC

    $29.95
    A top-end gasket failure can sideline your build and compromise engine integrity. COMETIC's multi-layered steel construction with Viton rubber coating is engineered to handle the extreme pressures of...
    C7734
    SKU:
    C7734
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    BORE SIZE METRIC:
    54.00 MM
    THICKNESS IMPERIAL:
    0,012'
    THICKNESS METRIC:
    0.31 MM
    TYPE:
    TOP END
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    OFF-ROAD
    $29.95
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
  • COMETIC Top End Gasket Set - Honda C7757

    COMETIC Top End Gasket Set - Honda C7757

    COMETIC

    $47.95
    A quality top-end gasket set is non-negotiable for engine longevity and performance consistency. The COMETIC C7757 delivers multi-layered steel construction with Viton rubber coating designed to...
    C7757
    SKU:
    C7757
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BORE SIZE METRIC:
    54.00 MM
    THICKNESS IMPERIAL:
    0,012'
    THICKNESS METRIC:
    0.31 MM
    TYPE:
    TOP END
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $47.95
    Subtotal:
  • COMETIC Top End Gasket Set C7726

    COMETIC Top End Gasket Set C7726

    COMETIC

    $35.95
    A quality gasket set is non-negotiable when rebuilding or refreshing your top end—poor sealing compromises power, reliability, and longevity. The COMETIC C7726 uses multi-layered steel construction...
    09341037
    SKU:
    09341037
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    BORE SIZE METRIC:
    75.00 MM
    PRODUCT NAME:
    GASKET KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • COMETIC Gasket Set -  96 mm - Honda C3139-EST

    COMETIC Gasket Set - 96 mm - Honda C3139-EST

    COMETIC

    $103.90
    High-output 4-stroke engines demand gasket sets engineered for extreme pressure and heat—and the COMETIC C3139-EST delivers exactly that. The multi-layered steel construction with Viton rubber...
    09340881
    SKU:
    09340881
    Availability:
    Ships Same Business Day
    Weight:
    0.17 LBS
    PRODUCT NAME:
    GASKET KIT
    UNITS:
    KIT
    TYPE:
    TOP END
    BORE SIZE METRIC:
    96.00 MM
    RIDING STYLE:
    ATV
    $103.90
    Qty in Cart: 0
    Quantity:
    Price:
    $103.90
    Subtotal:
  • COMETIC Exhaust Gasket - Polaris C2000EX

    COMETIC Exhaust Gasket - Polaris C2000EX

    COMETIC

    $21.95
    Exhaust gasket failure leads to leaks, performance loss, and costly engine damage—but the COMETIC C2000EX eliminates these risks with military-grade materials and precision engineering. Built for the...
    09343270
    SKU:
    09343270
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    GASKET
    MATERIAL:
    STAINLESS STEEL
    MODEL:
    HI-PERFORMANCE
    RIDING STYLE:
    SNOW
    TYPE:
    EXHAUST
    UNITS:
    SET
    Qty in Cart: 0
    Quantity:
    Price:
    $21.95
    Subtotal:
  • COMETIC Head Gasket -GSX/GSF 600 C8025

    COMETIC Head Gasket -GSX/GSF 600 C8025

    COMETIC

    $68.20
    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...
    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'
    $68.20
    Qty in Cart: 0
    Quantity:
    Price:
    $68.20
    Subtotal:
  • COMETIC Gasket Kit - Suzuki C8081AFM

    COMETIC Gasket Kit - Suzuki C8081AFM

    COMETIC

    $39.85
    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...
    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:
    $39.85
    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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