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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 Gasket Set - 96 mm - Yamaha C3066-EST

    COMETIC Gasket Set - 96 mm - Yamaha C3066-EST

    COMETIC

    $114.40
    A quality gasket set is the foundation of a reliable top-end rebuild—poor sealing leads to compression loss, oil leakage, and catastrophic engine failure. The COMETIC C3066-EST delivers the sealing...
    09340877
    SKU:
    09340877
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    BORE SIZE METRIC:
    96.00 MM
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    $114.40
    Qty in Cart: 0
    Quantity:
    Price:
    $114.40
    Subtotal:
  • COMETIC Top End Gasket Kit - 98 mm - Yamaha C3068-EST

    COMETIC Top End Gasket Kit - 98 mm - Yamaha C3068-EST

    COMETIC

    $115.45
    A factory gasket kit won't cut it when you're running high cylinder pressures and demanding boost levels. The COMETIC C3068-EST delivers the sealing reliability your top end needs with multi-layered...
    09340878
    SKU:
    09340878
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    RIDING STYLE:
    ATV
    PRODUCT NAME:
    GASKET KIT
    UNITS:
    KIT
    BORE SIZE METRIC:
    98.00 MM
    TYPE:
    TOP END
    $115.45
    Qty in Cart: 0
    Quantity:
    Price:
    $115.45
    Subtotal:
  • COMETIC O-Ring C10201

    COMETIC O-Ring C10201

    COMETIC

    $11.90
    Proper sealing is non-negotiable in high-performance engine builds, and a compromised O-ring can lead to costly leaks and catastrophic failures. The COMETIC C10201 delivers reliable, precision...
    09350990
    SKU:
    09350990
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    O-RING
    APPLICATION:
    CYLINDER
    RIDING STYLE:
    ATV
    UNITS:
    10 PACK
    Qty in Cart: 0
    Quantity:
    Price:
    $11.90
    Subtotal:
  • COMETIC Primary Seal Kit C10248

    COMETIC Primary Seal Kit C10248

    COMETIC

    $86.05
    A primary seal kit is the foundation of a leak-free, reliable engine—and Cometic's AFM gasket material sets the standard for high-performance applications. Whether you're running a street engine or a...
    09351031
    SKU:
    09351031
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    RIDING STYLE:
    STREET
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    SEAL
    UNITS:
    KIT
    TYPE:
    PRIMARY
    Qty in Cart: 0
    Quantity:
    Price:
    $86.05
    Subtotal:
  • COMETIC Clutch Gasket - Yamaha EC1151032AFM

    COMETIC Clutch Gasket - Yamaha EC1151032AFM

    COMETIC

    $21.95
    A reliable clutch gasket is essential for maintaining a solid seal on your engine case and preventing oil weepage that can compromise performance and create a mess in your engine bay. The COMETIC...
    09343994
    SKU:
    09343994
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MODEL:
    HI-PERFORMANCE
    TYPE:
    CLUTCH COVER
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $21.95
    Qty in Cart: 0
    Quantity:
    Price:
    $21.95
    Subtotal:
  • COMETIC Top End Gasket Twin Cam - EST C9976-030

    COMETIC Top End Gasket Twin Cam - EST C9976-030

    COMETIC

    $157.60
    A failed top-end gasket can sideline your engine and drain your wallet. The COMETIC EST C9976-030 eliminates guesswork by delivering a complete, purpose-built gasket kit engineered to handle...
    09341663
    SKU:
    09341663
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,020'
    THICKNESS IMPERIAL:
    0,030'
    TYPE:
    TOP END
    BORE SIZE:
    4,125'
    BORE SIZE IMPERIAL:
    4.125'
    THICKNESS METRIC:
    0.76 MM
    ENGINE TYPE:
    4-STROKE
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    GASKET KIT
    THICKNESS METRIC:
    0.51 MM
    MATERIAL:
    RUBBER
    UNITS:
    KIT
    $157.60
    Qty in Cart: 0
    Quantity:
    Price:
    $157.60
    Subtotal:
  • COMETIC Head Gasket - 4.000" x .030" C10084-030

    COMETIC Head Gasket - 4.000" x .030" C10084-030

    COMETIC

    $62.79
    A properly sealed combustion chamber is non-negotiable for consistent power delivery and engine longevity. COMETIC's MLS head gasket design minimizes bore distortion through load-control embossments,...
    09343147
    SKU:
    09343147
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    BORE SIZE:
    4,000'
    MATERIAL:
    VITON
    BORE SIZE IMPERIAL:
    4.000'
    THICKNESS:
    0,76 MM (0,030')
    THICKNESS IMPERIAL:
    0,030'
    THICKNESS METRIC:
    0.76 MM
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    UNITS:
    PAIR
    TYPE:
    CYLINDER HEAD
    Qty in Cart: 0
    Quantity:
    Price:
    $62.79
    Subtotal:
  • COMETIC Head Gasket - 4.060" x .030" C10085-030

    COMETIC Head Gasket - 4.060" x .030" C10085-030

    COMETIC

    $62.79
    A head gasket failure can cost you thousands in engine damage and lost track time. COMETIC's MLS design distributes clamping force evenly across the sealing surface, reducing bore distortion and...
    09343149
    SKU:
    09343149
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    BORE SIZE:
    4,060'
    MATERIAL:
    VITON
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    THICKNESS:
    0,76 MM (0,030')
    THICKNESS METRIC:
    0.76 MM
    TYPE:
    CYLINDER HEAD
    UNITS:
    PAIR
    BORE SIZE IMPERIAL:
    4.060'
    THICKNESS IMPERIAL:
    0,030'
    $62.79
    Qty in Cart: 0
    Quantity:
    Price:
    $62.79
    Subtotal:
  • COMETIC Head Gasket - 4.125" x .040" C10086-040

    COMETIC Head Gasket - 4.125" x .040" C10086-040

    COMETIC

    $62.79
    A quality head gasket is the foundation of reliable cylinder sealing and consistent compression. The COMETIC C10086-040 delivers precision engineering with its multi-layer steel construction,...
    09343152
    SKU:
    09343152
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    THICKNESS IMPERIAL:
    0,040'
    THICKNESS METRIC:
    1.02 MM
    MATERIAL:
    VITON
    BORE SIZE IMPERIAL:
    4.125'
    TYPE:
    CYLINDER HEAD
    BORE SIZE:
    4,125'
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    THICKNESS:
    1,02 MM (0,040')
    UNITS:
    PAIR
    $62.79
    Qty in Cart: 0
    Quantity:
    Price:
    $62.79
    Subtotal:
  • COMETIC Clutch Gasket - Yamaha C7800

    COMETIC Clutch Gasket - Yamaha C7800

    COMETIC

    $25.15
    A quality clutch gasket is critical to maintaining a reliable seal on your Yamaha C7800 engine—any weeping or failure here compromises your entire drivetrain. The COMETIC Clutch Gasket eliminates the...
    09344333
    SKU:
    09344333
    Availability:
    Ships Same Business Day
    Weight:
    0.21 LBS
    TYPE:
    CLUTCH COVER
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    ATV
    THICKNESS IMPERIAL:
    0.060'
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $25.15
    Subtotal:
  • COMETIC Clutch Gasket - Kawasaki EC1030032AFM

    COMETIC Clutch Gasket - Kawasaki EC1030032AFM

    COMETIC

    $26.20
    Clutch cover gasket failures lead to costly oil seepage and engine case damage—especially in high-performance or frequently serviced engines. The COMETIC EC1030032AFM eliminates these problems with a...
    09344364
    SKU:
    09344364
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    THICKNESS IMPERIAL:
    0,032'
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    TYPE:
    CLUTCH COVER
    $26.20
    Qty in Cart: 0
    Quantity:
    Price:
    $26.20
    Subtotal:
  • COMETIC Clutch Gasket - Yamaha EC314032AFM

    COMETIC Clutch Gasket - Yamaha EC314032AFM

    COMETIC

    $25.15
    A worn or failing clutch cover gasket leads to oil seepage, contamination, and potential clutch performance degradation. The COMETIC Clutch Gasket eliminates these issues with a chemically bonded AFM...
    09344436
    SKU:
    09344436
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    TYPE:
    CLUTCH COVER
    Qty in Cart: 0
    Quantity:
    Price:
    $25.15
    Subtotal:
  • COMETIC Clutch Gasket - Yamaha EC318032AFM

    COMETIC Clutch Gasket - Yamaha EC318032AFM

    COMETIC

    $14.95
    Clutch cover gasket failure costs you downtime and money—the COMETIC EC318032AFM eliminates both with a purpose-built AFM gasket that seals reliably without sealants or re-torquing. The...
    09344439
    SKU:
    09344439
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    TYPE:
    CLUTCH COVER
    RIDING STYLE:
    ATV
    $14.95
    Qty in Cart: 0
    Quantity:
    Price:
    $14.95
    Subtotal:
  • COMETIC Top End Gasket Kit - Buell C10111

    COMETIC Top End Gasket Kit - Buell C10111

    COMETIC

    $149.89
    A top-end rebuild demands precision gaskets that can withstand extreme combustion pressures and thermal cycling without failure. The COMETIC C10111 kit eliminates the guesswork by delivering...
    09344732
    SKU:
    09344732
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    MATERIAL:
    VITON
    RIDING STYLE:
    STREET
    BORE SIZE:
    3,500'
    BORE SIZE IMPERIAL:
    3.500'
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    GASKET KIT
    ENGINE TYPE:
    4-STROKE
    MATERIAL:
    RUBBER
    MATERIAL:
    STEEL
    TYPE:
    TOP END
    UNITS:
    KIT
    $149.89
    Qty in Cart: 0
    Quantity:
    Price:
    $149.89
    Subtotal:
  • COMETIC Bottom End Gasket Set - Gas Gas C3310

    COMETIC Bottom End Gasket Set - Gas Gas C3310

    COMETIC

    $68.20
    A complete bottom end gasket set is essential when you're doing a full engine rebuild—it ensures all sealing surfaces are fresh and properly engineered for your Gas Gas C3310, eliminating the risk of...
    09344140
    SKU:
    09344140
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    BOTTOM END
    ENGINE TYPE:
    2-STROKE
    MODEL:
    HI-PERFORMANCE
    UNITS:
    KIT
    $68.20
    Qty in Cart: 0
    Quantity:
    Price:
    $68.20
    Subtotal:
  • COMETIC Primary Gasket C9309F5

    COMETIC Primary Gasket C9309F5

    COMETIC

    $120.50
    A primary gasket is critical to maintaining a sealed, leak-free crankcase in high-performance engines where internal pressures and temperature fluctuations demand absolute reliability. The COMETIC...
    20111488
    SKU:
    20111488
    Availability:
    Ships Same Business Day
    Weight:
    0.44 LBS
    THICKNESS METRIC:
    1.52 MM
    UNITS:
    5 PACK
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    RIDING STYLE:
    STREET
    THICKNESS:
    1,52 MM (0,060')
    MOUNTING POSITION:
    OUTER
    PRODUCT NAME:
    GASKET
    THICKNESS IMPERIAL:
    0.060'
    TYPE:
    PRIMARY COVER
    $120.50
    Qty in Cart: 0
    Quantity:
    Price:
    $120.50
    Subtotal:
  • COMETIC Primary Gasket C9145F1

    COMETIC Primary Gasket C9145F1

    COMETIC

    $48.46
    Primary gasket failures compromise engine sealing and lead to costly leaks and performance loss. Cometic's AFM gasket technology delivers superior heat resistance and shape recovery, ensuring...
    09341205
    SKU:
    09341205
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    THICKNESS IMPERIAL:
    0.060'
    TYPE:
    PRIMARY
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    MOUNTING POSITION:
    OUTER
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    1.52 MM
    THICKNESS:
    1,52 MM (0,060')
    $48.46
    Qty in Cart: 0
    Quantity:
    Price:
    $48.46
    Subtotal:
  • COMETIC Exhaust Gasket - Tapered C9288

    COMETIC Exhaust Gasket - Tapered C9288

    COMETIC

    $38.00
    A failing exhaust gasket compromises both performance and reliability, allowing heat and pressure to escape where they shouldn't. The COMETIC C9288 tapered design seals precisely at the flange...
    09341337
    SKU:
    09341337
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    GASKET
    MATERIAL:
    GRAPHITE
    RIDING STYLE:
    STREET
    MATERIAL:
    STAINLESS STEEL
    TYPE:
    EXHAUST
    UNITS:
    10 PACK
    Qty in Cart: 0
    Quantity:
    Price:
    $38.00
    Subtotal:
  • COMETIC Shift Shaft Seal OS227

    COMETIC Shift Shaft Seal OS227

    COMETIC

    $4.95
    Countershaft seal leaks are a common maintenance issue that can compromise your transmission's integrity and lead to costly damage if left unchecked. The COMETIC Shift Shaft Seal OS227 is engineered...
    09350874
    SKU:
    09350874
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    SEAL
    UNITS:
    EACH
    APPLICATION:
    SHIFTER SHAFT
    RIDING STYLE:
    STREET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    Qty in Cart: 0
    Quantity:
    Price:
    $4.95
    Subtotal:
  • COMETIC Shift Shaft Seal OS420

    COMETIC Shift Shaft Seal OS420

    COMETIC

    $5.95
    Countershaft seal leaks are a common source of oil loss that compromises your transmission's reliability and performance. The COMETIC Shift Shaft Seal OS420 is a precision-engineered replacement seal...
    09350934
    SKU:
    09350934
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    SEAL
    RIDING STYLE:
    STREET
    APPLICATION:
    SHIFTER SHAFT
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $5.95
    Subtotal:
  • COMETIC Countershaft Seal OS425

    COMETIC Countershaft Seal OS425

    COMETIC

    $11.95
    Countershaft seal leaks compromise engine oil integrity and create messy, unreliable conditions in the garage or on the track. The COMETIC OS425 delivers precision sealing where it matters most,...
    09350939
    SKU:
    09350939
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    PRODUCT NAME:
    SEAL
    RIDING STYLE:
    STREET
    APPLICATION:
    COUNTERSHAFT
    UNITS:
    EACH
    $11.95
    Qty in Cart: 0
    Quantity:
    Price:
    $11.95
    Subtotal:
  • COMETIC Stator Gasket - Kawasaki EC1339032AFM

    COMETIC Stator Gasket - Kawasaki EC1339032AFM

    COMETIC

    $16.95
    Stator cover gasket failures are costly downtime culprits—they weep, crawl, and demand tedious scraping during replacement. The COMETIC Stator Gasket eliminates these headaches with its AFM composite...
    09344392
    SKU:
    09344392
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    TYPE:
    STATOR COVER
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • COMETIC Primary Gasket Kit C9889

    COMETIC Primary Gasket Kit C9889

    COMETIC

    $106.89
    A primary gasket kit failure means oil leaks, performance loss, and costly downtime. The COMETIC C9889 eliminates these risks with AFM gaskets engineered for extreme heat and pressure, delivering...
    09340744
    SKU:
    09340744
    Availability:
    Ships Same Business Day
    Weight:
    0.96 LBS
    PRODUCT NAME:
    GASKET KIT
    UNITS:
    KIT
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    RIDING STYLE:
    STREET
    TYPE:
    PRIMARY
    $106.89
    Qty in Cart: 0
    Quantity:
    Price:
    $106.89
    Subtotal:
  • COMETIC Head Gasket - 4"- .040" C9880

    COMETIC Head Gasket - 4"- .040" C9880

    COMETIC

    $64.99
    A head gasket failure can sideline your engine and drain your wallet—this is where precision engineering becomes non-negotiable. The COMETIC C9880 uses Multi-Layer Steel (MLS) construction with Load...
    09340010
    SKU:
    09340010
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    BORE SIZE:
    4,000'
    MATERIAL:
    VITON
    PRODUCT NAME:
    GASKET
    THICKNESS METRIC:
    1.02 MM
    UNITS:
    PAIR
    BORE SIZE IMPERIAL:
    4.000'
    RIDING STYLE:
    STREET
    THICKNESS:
    1,02 MM (0,040')
    THICKNESS IMPERIAL:
    0,040'
    TYPE:
    CYLINDER HEAD
    MATERIAL:
    LAYERED STEEL
    $64.99
    Qty in Cart: 0
    Quantity:
    Price:
    $64.99
    Subtotal:
  • COMETIC Head Gasket - SSW - +4.125" - .027" C9930

    COMETIC Head Gasket - SSW - +4.125" - .027" C9930

    COMETIC

    $64.99
    A head gasket is your engine's first line of defense against combustion blow-by and coolant leakage—and compromising on quality here invites catastrophic failure. The COMETIC SSW Head Gasket is...
    09340031
    SKU:
    09340031
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    BORE SIZE IMPERIAL:
    4.125'
    MATERIAL:
    VITON
    THICKNESS METRIC:
    0.69 MM
    RIDING STYLE:
    STREET
    TYPE:
    CYLINDER HEAD
    MATERIAL:
    LAYERED STEEL
    BORE SIZE:
    4,125'
    PRODUCT NAME:
    GASKET
    THICKNESS:
    0,69 MM (0,027')
    THICKNESS IMPERIAL:
    0,027'
    UNITS:
    PAIR
    $64.99
    Qty in Cart: 0
    Quantity:
    Price:
    $64.99
    Subtotal:
  • COMETIC Head Gasket SSW+4.125.030 C9931

    COMETIC Head Gasket SSW+4.125.030 C9931

    COMETIC

    $64.99
    A head gasket failure can cost you race time and credibility on the track. The COMETIC SSW+4.125.030 delivers the seal integrity and thermal stability you need to keep combustion pressure where it...
    09340032
    SKU:
    09340032
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BORE SIZE:
    4,125'
    BORE SIZE IMPERIAL:
    4.125'
    PRODUCT NAME:
    GASKET
    THICKNESS METRIC:
    0.76 MM
    UNITS:
    PAIR
    MATERIAL:
    LAYERED STEEL
    THICKNESS:
    0,76 MM (0,030')
    THICKNESS IMPERIAL:
    0,030'
    RIDING STYLE:
    STREET
    TYPE:
    CYLINDER HEAD
    $64.99
    Qty in Cart: 0
    Quantity:
    Price:
    $64.99
    Subtotal:
  • COMETIC Head Gasket - SSW - +4.125" - .036" C9932

    COMETIC Head Gasket - SSW - +4.125" - .036" C9932

    COMETIC

    $64.99
    A head gasket is the critical seal between your engine block and cylinder head—any compromise in material quality directly impacts combustion efficiency, coolant integrity, and overall engine...
    09340033
    SKU:
    09340033
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    BORE SIZE IMPERIAL:
    4.125'
    PRODUCT NAME:
    GASKET
    THICKNESS METRIC:
    0.91 MM
    UNITS:
    PAIR
    RIDING STYLE:
    STREET
    THICKNESS:
    0,91 MM (0,036')
    TYPE:
    CYLINDER HEAD
    BORE SIZE:
    4,125'
    MATERIAL:
    LAYERED STEEL
    THICKNESS IMPERIAL:
    0,036'
    $64.99
    Qty in Cart: 0
    Quantity:
    Price:
    $64.99
    Subtotal:
  • COMETIC Head Gasket - SSW - +4.125" - .040" C9933

    COMETIC Head Gasket - SSW - +4.125" - .040" C9933

    COMETIC

    $64.99
    A head gasket failure can end your race day or sideline your project build indefinitely. The COMETIC SSW Head Gasket delivers the sealing reliability required for high-boost and high-rpm...
    09340034
    SKU:
    09340034
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    BORE SIZE:
    4,125'
    THICKNESS:
    1,02 MM (0,040')
    TYPE:
    CYLINDER HEAD
    UNITS:
    PAIR
    MATERIAL:
    LAYERED STEEL
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,040'
    THICKNESS METRIC:
    1.02 MM
    BORE SIZE IMPERIAL:
    4.125'
    PRODUCT NAME:
    GASKET
    Qty in Cart: 0
    Quantity:
    Price:
    $64.99
    Subtotal:
  • COMETIC Base Gasket - +4.125" - .020" C9936

    COMETIC Base Gasket - +4.125" - .020" C9936

    COMETIC

    $35.23
    A precision base gasket is critical to maintaining boost pressure integrity and preventing coolant/oil seepage in high-performance applications. The COMETIC C9936 combines a stainless steel core with...
    09340036
    SKU:
    09340036
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MATERIAL:
    RUBBER
    MATERIAL:
    STEEL
    THICKNESS:
    0,51 MM (0,020')
    TYPE:
    CYLINDER BASE
    THICKNESS IMPERIAL:
    0,020'
    THICKNESS METRIC:
    0.51 MM
    RIDING STYLE:
    STREET
    BORE SIZE:
    4,125'
    BORE SIZE IMPERIAL:
    4.125'
    PRODUCT NAME:
    GASKET
    UNITS:
    PAIR
    $35.23
    Qty in Cart: 0
    Quantity:
    Price:
    $35.23
    Subtotal:
  • COMETIC Oil Pan Gasket - M8 C10243

    COMETIC Oil Pan Gasket - M8 C10243

    COMETIC

    $23.10
    A leaking oil pan gasket compromises engine lubrication and creates mess under your bay—neither acceptable for serious racers or meticulous builders. The COMETIC M8 C10243 delivers a complete gasket...
    09346335
    SKU:
    09346335
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    GASKET
    TYPE:
    OIL PAN
    $23.10
    Qty in Cart: 0
    Quantity:
    Price:
    $23.10
    Subtotal:
  • COMETIC Trans Top Cover Gasket - M8 C10246

    COMETIC Trans Top Cover Gasket - M8 C10246

    COMETIC

    $26.41
    A leaking transmission top cover gasket compromises hydraulic integrity and invites contamination into your gearbox—exactly what you don't need mid-race or mid-project. The COMETIC Trans Top Cover...
    09346336
    SKU:
    09346336
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    GASKET
    TYPE:
    TRANSMISSION TOP COVER
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $26.41
    Subtotal:
  • COMETIC Breather Gasket Kit - Twin Cam C10161

    COMETIC Breather Gasket Kit - Twin Cam C10161

    COMETIC

    $22.00
    A breather system that weeps oil or allows blow-by gases to escape is a sign of worn gaskets and seals—problems that compound quickly under boost or high RPM operation. The COMETIC Breather Gasket...
    09346002
    SKU:
    09346002
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    TYPE:
    BREATHER
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $22.00
    Subtotal:
  • COMETIC Primary Gasket C10211

    COMETIC Primary Gasket C10211

    COMETIC

    $35.23
    A primary gasket kit is the foundation of a reliable engine seal—critical for preventing oil leaks, maintaining proper combustion pressure, and avoiding costly internal damage. The Cometic C10211...
    09345980
    SKU:
    09345980
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    TYPE:
    PRIMARY
    UNITS:
    EACH
    $35.23
    Qty in Cart: 0
    Quantity:
    Price:
    $35.23
    Subtotal:
  • COMETIC Transmission Lid Gasket C10216

    COMETIC Transmission Lid Gasket C10216

    COMETIC

    $9.40
    Transmission fluid leaks compromise both performance and engine longevity, and a worn gasket is often the culprit. The COMETIC C10216 transmission lid gasket eliminates seepage with a proven aluminum...
    09345983
    SKU:
    09345983
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    THICKNESS:
    1,52 MM (0,060')
    TYPE:
    TRANSMISSION TOP COVER
    UNITS:
    EACH
    THICKNESS METRIC:
    1.52 MM
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0.060'
    $9.40
    Qty in Cart: 0
    Quantity:
    Price:
    $9.40
    Subtotal:
  • COMETIC Cylinder Head Gasket C10167-030

    COMETIC Cylinder Head Gasket C10167-030

    COMETIC

    $64.99
    A cylinder head gasket failure can sideline your engine, but the COMETIC C10167-030 is engineered to handle extreme pressures, temperatures, and surface variations without compromise. Built with a...
    09345924
    SKU:
    09345924
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    BORE SIZE:
    4,145'
    MATERIAL:
    LAYERED STEEL
    TYPE:
    CYLINDER HEAD
    BORE SIZE IMPERIAL:
    4.145'
    MATERIAL:
    VITON
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    UNITS:
    2 PACK
    THICKNESS IMPERIAL:
    0,030'
    THICKNESS METRIC:
    0.76 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $64.99
    Subtotal:
  • COMETIC Dip Stick O-Ring - Sportster C9961

    COMETIC Dip Stick O-Ring - Sportster C9961

    COMETIC

    $3.20
    Oil level monitoring depends on a reliable seal, and a degraded dip stick O-ring compromises both accuracy and engine cleanliness. COMETIC's fuel-resistant O-ring maintains its integrity under...
    09340740
    SKU:
    09340740
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    APPLICATION:
    DIPSTICK
    MATERIAL:
    BUNA
    PRODUCT NAME:
    O-RING
    UNITS:
    5 PACK
    RIDING STYLE:
    STREET
    Qty in Cart: 0
    Quantity:
    Price:
    $3.20
    Subtotal:
  • COMETIC Primary Gasket Kit C9886

    COMETIC Primary Gasket Kit C9886

    COMETIC

    $145.48
    A primary gasket failure can leave you stranded and cost thousands in engine damage. The COMETIC C9886 Primary Gasket Kit eliminates guesswork with precision-engineered AFM gaskets that handle...
    09340742
    SKU:
    09340742
    Availability:
    Ships Same Business Day
    Weight:
    0.86 LBS
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    RIDING STYLE:
    STREET
    TYPE:
    PRIMARY
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET KIT
    $145.48
    Qty in Cart: 0
    Quantity:
    Price:
    $145.48
    Subtotal:
  • COMETIC Primary Gasket Kit C9885

    COMETIC Primary Gasket Kit C9885

    COMETIC

    $145.48
    A primary gasket failure can sideline your build and cost you race time. The COMETIC C9885 Primary Gasket Kit eliminates guesswork with precision-engineered AFM gaskets that handle extreme heat...
    09340743
    SKU:
    09340743
    Availability:
    Ships Same Business Day
    Weight:
    1.11 LBS
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    STREET
    TYPE:
    PRIMARY
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $145.48
    Subtotal:
  • COMETIC Rocker Gasket - .020" C9563

    COMETIC Rocker Gasket - .020" C9563

    COMETIC

    $20.10
    Rocker cover gaskets are critical sealing components that prevent oil weepage and contamination in your engine's valve train. A failed or deteriorating gasket compromises engine cleanliness and can...
    09340748
    SKU:
    09340748
    Availability:
    Ships Same Business Day
    Weight:
    0.18 LBS
    MATERIAL:
    RUBBER
    PRODUCT NAME:
    GASKET
    TYPE:
    ROCKER COVER BASE
    THICKNESS:
    0,51 MM (0,020')
    MOUNTING POSITION:
    LOWER
    RIDING STYLE:
    STREET
    THICKNESS IMPERIAL:
    0,020'
    MATERIAL:
    STEEL
    THICKNESS METRIC:
    0.51 MM
    UNITS:
    5 PACK
    $20.10
    Qty in Cart: 0
    Quantity:
    Price:
    $20.10
    Subtotal:
  • COMETIC Rocker Gasket - .020" C9561

    COMETIC Rocker Gasket - .020" C9561

    COMETIC

    $16.90
    Rocker cover gaskets are critical sealing components that prevent oil leakage at high RPM and under sustained boost pressure. A degraded or worn gasket compromises engine bay cleanliness and can lead...
    09340749
    SKU:
    09340749
    Availability:
    Ships Same Business Day
    Weight:
    0.18 LBS
    MATERIAL:
    RUBBER
    MATERIAL:
    STEEL
    THICKNESS:
    0,51 MM (0,020')
    THICKNESS IMPERIAL:
    0,020'
    THICKNESS METRIC:
    0.51 MM
    UNITS:
    5 PACK
    RIDING STYLE:
    STREET
    MOUNTING POSITION:
    LOWER
    PRODUCT NAME:
    GASKET
    TYPE:
    ROCKER COVER BASE
    $16.90
    Qty in Cart: 0
    Quantity:
    Price:
    $16.90
    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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