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ATV/UTV Engine

ATV/UTV Engine

ATV/UTV Engine

ATV/UTV Engine Parts at JJ Motorsports

Maximize your ATV or UTV's engine life with top-quality components from JJ Motorsports. Our selection includes gasket kits, connecting rods, water pump rebuild kits, and timing plugs designed for reliable sealing, strength, and easy installation in demanding off-road conditions. Compatible with Polaris, Can-Am, Honda, and more, these parts ensure peak power, reduced wear, and efficient operation for trail riding or utility work.

Shop trusted brands like Moose Racing for rebuild kits and Winderosa for gaskets. Explore related categories such as ATV/UTV air and fuel for intake upgrades or ATV/UTV drivetrain for transmission enhancements.

Top ATV/UTV Engine Products

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

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • MOOSE RACING Top End Gasket Kit - Polaris 810968

    MOOSE RACING Top End Gasket Kit - Polaris 810968

    MOOSE RACING

    $64.58
    A top-end rebuild demands precision gaskets and seals that won't compromise engine integrity or require constant re-torquing. The MOOSE RACING Top End Gasket Kit delivers OEM-quality components at a fraction of the cost, giving you the confidence to...
    09344831
    SKU:
    09344831
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    TYPE:
    TOP END
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    ATV
    $64.58
    Qty in Cart: 0
    Quantity:
    Price:
    $64.58
    Subtotal:
  • MOOSE RACING Complete Motor Gasket Kit - LT80/KFX80 808849

    MOOSE RACING Complete Motor Gasket Kit - LT80/KFX80 808849

    MOOSE RACING

    $25.69
    A complete engine and transmission rebuild demands precision-fit gaskets and seals—compromising here leads to oil leaks, performance loss, and costly downtime. The MOOSE RACING Complete Motor Gasket Kit gives you OEM-quality components at a fraction of...
    09340151
    SKU:
    09340151
    Availability:
    Ships Same Business Day
    Weight:
    0.18 LBS
    PRODUCT NAME:
    GASKET
    UNITS:
    KIT
    RIDING STYLE:
    ATV
    TYPE:
    ENGINE
    TYPE:
    COMPLETE
    $25.69
    Qty in Cart: 0
    Quantity:
    Price:
    $25.69
    Subtotal:
  • MOOSE RACING Clutch Cover Gasket 816132

    MOOSE RACING Clutch Cover Gasket 816132

    MOOSE RACING

    $17.06
    A failing clutch cover gasket compromises engine sealing and invites oil leakage that can damage critical components. The MOOSE RACING Clutch Cover Gasket 816132 delivers OEM-equivalent sealing performance at a fraction of OEM pricing, using high-tech...
    09341412
    SKU:
    09341412
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    RIDING STYLE:
    ATV
    TYPE:
    CLUTCH COVER
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    $17.06
    Qty in Cart: 0
    Quantity:
    Price:
    $17.06
    Subtotal:
  • MOOSE RACING Clutch Cover Gasket 816167

    MOOSE RACING Clutch Cover Gasket 816167

    MOOSE RACING

    $17.17
    A leaking clutch cover doesn't just waste oil—it compromises engine sealing integrity and creates a mess in your garage or on the track. The MOOSE RACING Clutch Cover Gasket 816167 is a precision-engineered OEM replacement that restores a factory-tight...
    09341415
    SKU:
    09341415
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    PRODUCT NAME:
    GASKET
    TYPE:
    CLUTCH COVER
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $17.17
    Subtotal:
  • MOOSE RACING Clutch Cover Gasket 816202

    MOOSE RACING Clutch Cover Gasket 816202

    MOOSE RACING

    $12.71
    A leaking clutch cover gasket compromises engine sealing and can lead to oil seepage that damages surrounding components. This MOOSE RACING gasket delivers OEM-equivalent fitment and reliability at a fraction of OEM pricing, making it the smart choice...
    09341417
    SKU:
    09341417
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    TYPE:
    CLUTCH COVER
    $12.71
    Qty in Cart: 0
    Quantity:
    Price:
    $12.71
    Subtotal:
  • MOOSE RACING Clutch Cover Gasket 816217

    MOOSE RACING Clutch Cover Gasket 816217

    MOOSE RACING

    $16.90
    A leaking clutch cover gasket compromises engine integrity and creates costly oil seepage that degrades performance. The MOOSE RACING Clutch Cover Gasket 816217 delivers OEM-equivalent sealing reliability at a fraction of OEM pricing, using high-tech...
    09341418
    SKU:
    09341418
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    PRODUCT NAME:
    GASKET
    TYPE:
    CLUTCH COVER
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    $16.90
    Qty in Cart: 0
    Quantity:
    Price:
    $16.90
    Subtotal:
  • MOOSE RACING Clutch Cover Gasket 817009

    MOOSE RACING Clutch Cover Gasket 817009

    MOOSE RACING

    $17.79
    A leaking clutch cover gasket compromises engine sealing and can lead to oil loss and contamination. The MOOSE RACING Clutch Cover Gasket 817009 delivers OEM-equivalent sealing performance at a fraction of OEM pricing, using high-tech materials...
    09341419
    SKU:
    09341419
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    RIDING STYLE:
    ATV
    TYPE:
    CLUTCH COVER
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    $17.79
    Qty in Cart: 0
    Quantity:
    Price:
    $17.79
    Subtotal:
  • MOOSE RACING Clutch Cover Gasket 817032

    MOOSE RACING Clutch Cover Gasket 817032

    MOOSE RACING

    $17.49
    A leaking clutch cover gasket compromises engine integrity and creates a mess in your engine bay. The MOOSE RACING Clutch Cover Gasket delivers OEM-equivalent sealing performance at a fraction of OEM pricing, using high-tech materials engineered for...
    09341420
    SKU:
    09341420
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    RIDING STYLE:
    ATV
    TYPE:
    CLUTCH COVER
    UNITS:
    EACH
    PRODUCT NAME:
    GASKET
    $17.49
    Qty in Cart: 0
    Quantity:
    Price:
    $17.49
    Subtotal:
  • MOOSE RACING Clutch Cover Gasket 817202

    MOOSE RACING Clutch Cover Gasket 817202

    MOOSE RACING

    $18.03
    A leaking clutch cover gasket compromises engine sealing and invites oil seepage that can damage surrounding components. The MOOSE RACING Clutch Cover Gasket 817202 delivers OEM-equivalent sealing performance at a fraction of OEM pricing, using high-tech...
    09341421
    SKU:
    09341421
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    RIDING STYLE:
    ATV
    TYPE:
    CLUTCH COVER
    UNITS:
    EACH
    PRODUCT NAME:
    GASKET
    $18.03
    Qty in Cart: 0
    Quantity:
    Price:
    $18.03
    Subtotal:
  • PARTS UNLIMITED Pull Handle 110010

    PARTS UNLIMITED Pull Handle 110010

    PARTS UNLIMITED

    $8.43
    A reliable pull handle is essential for any racing operation or high-performance build—whether you're managing engine covers, fuel cell access panels, or custom fabrication work. The PARTS UNLIMITED 110010 delivers straightforward functionality with a...
    110010
    SKU:
    110010
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    BASE COLOR:
    BLACK
    MATERIAL:
    RUBBER
    TYPE:
    STARTER
    STYLE:
    T-SHAPE
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    HANDLE
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    $8.43
    Qty in Cart: 0
    Quantity:
    Price:
    $8.43
    Subtotal:
  • MOOSE RACING Complete Motor Gasket Kit - RZR 800 808962

    MOOSE RACING Complete Motor Gasket Kit - RZR 800 808962

    MOOSE RACING

    $139.77
    A complete engine and transmission rebuild demands precision gaskets and seals that won't compromise performance or reliability. The MOOSE RACING Complete Motor Gasket Kit delivers OEM-quality components at a fraction of dealership pricing, letting you...
    09346516
    SKU:
    09346516
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    PRODUCT NAME:
    GASKET
    TYPE:
    ENGINE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $139.77
    Subtotal:
  • MOOSE RACING Valve Seal Kit M30-30980

    MOOSE RACING Valve Seal Kit M30-30980

    MOOSE RACING

    $15.95
    Valve seal degradation is one of the most common causes of oil consumption and performance loss in high-mileage engines. The MOOSE RACING Valve Seal Kit M30-30980 replaces worn OEM seals with precision-engineered components that restore proper oil...
    09262842
    SKU:
    09262842
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    COLOR/FINISH:
    RED
    MATERIAL:
    VITON
    TYPE:
    VALVE STEM
    APPLICATION:
    INTAKE
    BASE COLOR:
    RED
    RIDING STYLE:
    ATV
    PRODUCT NAME:
    SEAL KIT
    UNITS:
    KIT
    APPLICATION:
    EXHAUST
    $15.95
    Qty in Cart: 0
    Quantity:
    Price:
    $15.95
    Subtotal:
  • MOOSE RACING Valve Seal Kit M40-40840

    MOOSE RACING Valve Seal Kit M40-40840

    MOOSE RACING

    $15.95
    Valve seal degradation is one of the most common culprits behind oil consumption, rough idle, and power loss—especially in high-heat racing environments. The MOOSE RACING Valve Seal Kit M40-40840 replaces worn factory seals with precision-engineered...
    09262843
    SKU:
    09262843
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    COLOR/FINISH:
    RED
    MATERIAL:
    VITON
    APPLICATION:
    INTAKE
    BASE COLOR:
    RED
    RIDING STYLE:
    ATV
    APPLICATION:
    EXHAUST
    TYPE:
    VALVE STEM
    PRODUCT NAME:
    SEAL KIT
    UNITS:
    KIT
    $15.95
    Qty in Cart: 0
    Quantity:
    Price:
    $15.95
    Subtotal:
  • MOOSE RACING Cylinder - Standard MSE40002

    MOOSE RACING Cylinder - Standard MSE40002

    MOOSE RACING

    $402.95
    A worn or damaged cylinder compromises compression, power delivery, and engine reliability—especially under sustained racing conditions. The MOOSE RACING Standard MSE40002 restores your engine to OEM specifications with a precision-honed bore and...
    09310461
    SKU:
    09310461
    Availability:
    Ships Same Business Day
    Weight:
    3.23 LBS
    MATERIAL:
    CAST
    PRODUCT NAME:
    CYLINDER
    CYLINDER BORE COATING:
    NICKEL-SILICON CARBIDE
    MATERIAL:
    ALUMINUM
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    $402.95
    Qty in Cart: 0
    Quantity:
    Price:
    $402.95
    Subtotal:
  • MOOSE RACING Cylinder - Standard - Brute Force MSE30007

    MOOSE RACING Cylinder - Standard - Brute Force MSE30007

    MOOSE RACING

    $462.95
    A worn or damaged cylinder compromises compression, efficiency, and overall engine reliability—costing you performance and consistency on the track or trail. The MOOSE RACING Cylinder restores OEM specifications with precision engineering and superior...
    09310512
    SKU:
    09310512
    Availability:
    Ships Same Business Day
    Weight:
    3.80 LBS
    CYLINDER BORE COATING:
    NICKEL-SILICON CARBIDE
    MATERIAL:
    ALUMINUM
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    MATERIAL:
    CAST
    PRODUCT NAME:
    CYLINDER
    RIDING STYLE:
    UTV
    $462.95
    Qty in Cart: 0
    Quantity:
    Price:
    $462.95
    Subtotal:
  • MOOSE RACING Cylinder - Standard - Teryx MSE30008

    MOOSE RACING Cylinder - Standard - Teryx MSE30008

    MOOSE RACING

    $462.95
    A worn or damaged cylinder compromises compression, power delivery, and engine reliability. The MOOSE RACING Cylinder restores OEM performance with precision engineering and a superior low-friction bore surface that runs cooler and lasts longer. This U.S...
    09310513
    SKU:
    09310513
    Availability:
    Ships Same Business Day
    Weight:
    3.75 LBS
    MATERIAL:
    ALUMINUM
    RIDING STYLE:
    UTV
    CYLINDER BORE COATING:
    NICKEL-SILICON CARBIDE
    PRODUCT NAME:
    CYLINDER
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    MATERIAL:
    CAST
    $462.95
    Qty in Cart: 0
    Quantity:
    Price:
    $462.95
    Subtotal:
  • MOOSE RACING Wrist Pin 905-2250-15CP1C

    MOOSE RACING Wrist Pin 905-2250-15CP1C

    MOOSE RACING

    $16.95
    A wrist pin failure mid-race can cost you everything—time, money, and credibility on the track. The MOOSE RACING Wrist Pin 905-2250-15CP1C delivers the durability you need with a nitride-coated bearing surface that resists wear and maintains consistent...
    09130294
    SKU:
    09130294
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    PRODUCT NAME:
    WRIST PIN
    APPLICATION:
    PISTON
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    $16.95
    Qty in Cart: 0
    Quantity:
    Price:
    $16.95
    Subtotal:
  • MOOSE RACING Motor Gasket Kit with Seal - Polaris 811945

    MOOSE RACING Motor Gasket Kit with Seal - Polaris 811945

    MOOSE RACING

    $240.12
    Engine and transmission rebuilds demand precision-fit gaskets and seals that won't compromise your work or wallet. The MOOSE RACING Motor Gasket Kit delivers OEM-equivalent performance at a fraction of dealership pricing, letting you rebuild with...
    09342091
    SKU:
    09342091
    Availability:
    Ships Same Business Day
    Weight:
    0.62 LBS
    $240.12
    Qty in Cart: 0
    Quantity:
    Price:
    $240.12
    Subtotal:
  • MOOSE RACING Clutch Cover Gasket 817680

    MOOSE RACING Clutch Cover Gasket 817680

    MOOSE RACING

    $16.60
    A leaking clutch cover gasket compromises engine sealing integrity and creates messy oil seepage that accelerates component wear. The MOOSE RACING Clutch Cover Gasket 817680 delivers OEM-equivalent sealing performance at a fraction of OEM pricing, using...
    09341427
    SKU:
    09341427
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    TYPE:
    CLUTCH COVER
    $16.60
    Qty in Cart: 0
    Quantity:
    Price:
    $16.60
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - Yamaha 810944

    MOOSE RACING Top End Gasket Kit - Yamaha 810944

    MOOSE RACING

    $78.88
    A top-end rebuild demands precision gaskets and seals that won't compromise engine integrity or performance. The MOOSE RACING Top End Gasket Kit eliminates the guesswork with OEM-quality seals and a complete set of gaskets designed specifically for...
    09342079
    SKU:
    09342079
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    PRODUCT NAME:
    GASKET
    UNITS:
    KIT
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    $78.88
    Qty in Cart: 0
    Quantity:
    Price:
    $78.88
    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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