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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 Clutch Cover Gasket 816244

    MOOSE RACING Clutch Cover Gasket 816244

    MOOSE RACING

    $16.03
    MOOSE RACING Clutch Cover Gasket 816244Moose can now handle all your gasket and seal needs at a fraction of OEM cast, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmissions with total confidence as each...
    09342093
    SKU:
    09342093
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    RIDING STYLE:
    ATV
    TYPE:
    CLUTCH COVER
    UNITS:
    EACH
    PRODUCT NAME:
    GASKET
    $16.03
    Qty in Cart: 0
    Quantity:
    Price:
    $16.03
    Subtotal:
  • MOOSE RACING Clutch Cover Gasket 816678

    MOOSE RACING Clutch Cover Gasket 816678

    MOOSE RACING

    $12.73
    MOOSE RACING Clutch Cover Gasket 816678Moose can now handle all your gasket and seal needs at a fraction of OEM cast, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmissions with total confidence as each...
    09342094
    SKU:
    09342094
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    RIDING STYLE:
    ATV
    TYPE:
    CLUTCH COVER
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    $12.73
    Qty in Cart: 0
    Quantity:
    Price:
    $12.73
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - Can-Am 810954

    MOOSE RACING Top End Gasket Kit - Can-Am 810954

    MOOSE RACING

    $190.55
    MOOSE RACING Top End Gasket Kit Can-Am 810954Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as...
    09343016
    SKU:
    09343016
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET
    $190.55
    Qty in Cart: 0
    Quantity:
    Price:
    $190.55
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - Can-Am 810956

    MOOSE RACING Top End Gasket Kit - Can-Am 810956

    MOOSE RACING

    $168.78
    MOOSE RACING Top End Gasket Kit Can-Am 810956Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as...
    09343017
    SKU:
    09343017
    Availability:
    Ships Same Business Day
    Weight:
    0.48 LBS
    RIDING STYLE:
    ATV
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    UTV
    UNITS:
    KIT
    TYPE:
    TOP END
    $168.78
    Qty in Cart: 0
    Quantity:
    Price:
    $168.78
    Subtotal:
  • MOOSE RACING Motor Gasket Kit with Seal - Can-Am 811954

    MOOSE RACING Motor Gasket Kit with Seal - Can-Am 811954

    MOOSE RACING

    $256.14
    MOOSE RACING Motor Gasket Kit with Seal Can-Am 811954Moose can now handle all your gasket and seal needs at a fraction of OEM cost, Rebuild the engine and transmission with total confidence as each set is designed for durability and accurate fit, Oil...
    09343018
    SKU:
    09343018
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    RIDING STYLE:
    ATV
    TYPE:
    COMPLETE
    PRODUCT NAME:
    GASKET
    TYPE:
    ENGINE
    UNITS:
    KIT
    $256.14
    Qty in Cart: 0
    Quantity:
    Price:
    $256.14
    Subtotal:
  • MOOSE RACING Cylinder - Standard - Polaris MSE60002

    MOOSE RACING Cylinder - Standard - Polaris MSE60002

    MOOSE RACING

    $588.95
    MOOSE RACING Cylinder Standard Polaris MSE60002Replace your damaged or worn OEM cylinder, Made from cast aluminum; nickel silicon carbide plated, Precision-machined and honed to OEM stock bore sizes, Extremely durable low-friction bore surface allows for...
    09310630
    SKU:
    09310630
    Availability:
    Ships Same Business Day
    Weight:
    7.85 LBS
    MATERIAL:
    CAST
    PRODUCT NAME:
    CYLINDER
    RIDING STYLE:
    UTV
    RIDING STYLE:
    ATV
    CYLINDER BORE COATING:
    NICKEL-SILICON CARBIDE
    MATERIAL:
    ALUMINUM
    UNITS:
    EACH
    $588.95
    Qty in Cart: 0
    Quantity:
    Price:
    $588.95
    Subtotal:
  • MOOSE RACING Cylinder - Standard - RZR XP 1000 MSE60003

    MOOSE RACING Cylinder - Standard - RZR XP 1000 MSE60003

    MOOSE RACING

    $622.95
    MOOSE RACING Cylinder Standard RZR XP 1000 MSE60003Replace your damaged or worn OEM cylinder, Made from cast aluminum; nickel silicon carbide plated, Precision-machined and honed to OEM stock bore sizes, Extremely durable low-friction bore surface allows...
    09310631
    SKU:
    09310631
    Availability:
    Ships Same Business Day
    Weight:
    7.07 LBS
    MATERIAL:
    ALUMINUM
    RIDING STYLE:
    UTV
    CYLINDER BORE COATING:
    NICKEL-SILICON CARBIDE
    PRODUCT NAME:
    CYLINDER
    UNITS:
    EACH
    MATERIAL:
    CAST
    Qty in Cart: 0
    Quantity:
    Price:
    $622.95
    Subtotal:
  • MOOSE RACING Ring Set - For 96 mm Piston CPN2-3780

    MOOSE RACING Ring Set - For 96 mm Piston CPN2-3780

    MOOSE RACING

    $35.95
    MOOSE RACING Ring Set For 96 mm Piston CPN2-3780Made in the U.S.A., Be sure to use race fuel with some applications
    09120247
    SKU:
    09120247
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PISTON SIZE METRIC:
    STANDARD
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    PISTON RING
    UNITS:
    SET
    RIDING STYLE:
    ATV
    $35.95
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • MOOSE RACING Ring Set - For 97 mm Piston CPN2-3819

    MOOSE RACING Ring Set - For 97 mm Piston CPN2-3819

    MOOSE RACING

    $35.95
    MOOSE RACING Ring Set For 97 mm Piston CPN2-3819Made in the U.S.A., Be sure to use race fuel with some applications
    09120254
    SKU:
    09120254
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    PRODUCT NAME:
    PISTON RING
    PISTON SIZE METRIC:
    STANDARD
    RIDING STYLE:
    ATV
    UNITS:
    SET
    $35.95
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • MOOSE RACING Ring Set - For 93 mm Piston CPN-3661

    MOOSE RACING Ring Set - For 93 mm Piston CPN-3661

    MOOSE RACING

    $35.95
    MOOSE RACING Ring Set For 93 mm Piston CPN-3661Made in the U.S.A., Be sure to use race fuel with some applications
    09120373
    SKU:
    09120373
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PISTON SIZE METRIC:
    STANDARD
    RIDING STYLE:
    UTV
    PRODUCT NAME:
    PISTON RING
    UNITS:
    SET
    $35.95
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • MOOSE RACING Connecting Rod MR5025

    MOOSE RACING Connecting Rod MR5025

    MOOSE RACING

    $474.95
    MOOSE RACING Connecting Rod MR5025Moose Racing has teamed up with CP-Carrillo to bring you the highest quality, professional connecting rod, 100% machined from an oversized forging ensures proper grain flow and consistency through the manufacturing...
    09230301
    SKU:
    09230301
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    STYLE:
    HIGH PERFORMANCE
    MATERIAL:
    PROPRIETARY ALLOY
    UNITS:
    EACH
    PRODUCT NAME:
    CONNECTING ROD
    RIDING STYLE:
    OFF-ROAD
    $474.95
    Qty in Cart: 0
    Quantity:
    Price:
    $474.95
    Subtotal:
  • MOOSE RACING Cylinder - Standard - Polaris MSE60006

    MOOSE RACING Cylinder - Standard - Polaris MSE60006

    MOOSE RACING

    $605.95
    MOOSE RACING Cylinder Standard Polaris MSE60006Replace your damaged or worn OEM cylinder, Made from cast aluminum; nickel silicon carbide plated, Precision-machined and honed to OEM stock bore sizes, Extremely durable low-friction bore surface allows for...
    09310964
    SKU:
    09310964
    Availability:
    Ships Same Business Day
    Weight:
    7.30 LBS
    COLOR/FINISH:
    GRAY
    CYLINDER DIAMETER METRIC:
    93.00 MM
    BORE SIZE METRIC:
    STANDARD
    CYLINDER BORE COATING:
    NICKEL-SILICON CARBIDE
    MATERIAL:
    ALUMINUM
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    CYLINDER DIAMETER:
    93,00 MM
    ENGINE TYPE:
    4-CYCLE
    MATERIAL:
    CAST
    PRODUCT NAME:
    CYLINDER
    DISPLACEMENT:
    1000 CC
    RIDING STYLE:
    UTV
    Qty in Cart: 0
    Quantity:
    Price:
    $605.95
    Subtotal:
  • MOOSE RACING Cylinder - Standard - Polaris MSECW60007

    MOOSE RACING Cylinder - Standard - Polaris MSECW60007

    MOOSE RACING

    $644.95
    MOOSE RACING Cylinder Standard Polaris MSECW60007Replace your damaged or worn OEM cylinder, Made from cast aluminum; nickel silicon carbide plated, Precision-machined and honed to OEM stock bore sizes, Extremely durable low-friction bore surface allows...
    09310965
    SKU:
    09310965
    Availability:
    Ships Same Business Day
    Weight:
    7.25 LBS
    COLOR/FINISH:
    GRAY
    DISPLACEMENT:
    1000 CC
    RIDING STYLE:
    ATV
    CYLINDER DIAMETER METRIC:
    93.00 MM
    BORE SIZE METRIC:
    STANDARD
    CYLINDER DIAMETER:
    93,00 MM
    ENGINE TYPE:
    4-CYCLE
    MATERIAL:
    CAST
    PRODUCT NAME:
    CYLINDER
    RIDING STYLE:
    UTV
    CYLINDER BORE COATING:
    NICKEL-SILICON CARBIDE
    MATERIAL:
    ALUMINUM
    UNITS:
    EACH
    $644.95
    Qty in Cart: 0
    Quantity:
    Price:
    $644.95
    Subtotal:
  • MOOSE RACING Cylinder - Standard MSE20004

    MOOSE RACING Cylinder - Standard MSE20004

    MOOSE RACING

    $500.95
    MOOSE RACING Cylinder Standard MSE20004Replace your damaged or worn OEM cylinder, Made from cast aluminum; nickel silicon carbide plated, Precision-machined and honed to OEM stock bore sizes, Extremely durable low-friction bore surface allows for greater...
    09310453
    SKU:
    09310453
    Availability:
    Ships Same Business Day
    Weight:
    6.73 LBS
    MATERIAL:
    CAST
    PRODUCT NAME:
    CYLINDER
    MATERIAL:
    ALUMINUM
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    CYLINDER BORE COATING:
    NICKEL-SILICON CARBIDE
    $500.95
    Qty in Cart: 0
    Quantity:
    Price:
    $500.95
    Subtotal:
  • MOOSE RACING Ring Set - For 102 mm Piston CPN-4016

    MOOSE RACING Ring Set - For 102 mm Piston CPN-4016

    MOOSE RACING

    $35.95
    MOOSE RACING Ring Set For 102 mm Piston CPN-4016Made in the U.S.A., Be sure to use race fuel with some applications
    09120581
    SKU:
    09120581
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    ATV
    PISTON SIZE METRIC:
    +2.00 MM
    PRODUCT NAME:
    PISTON RING
    UNITS:
    SET
    RIDING STYLE:
    UTV
    $35.95
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • MOOSE RACING Cylinder - Standard - Polaris MSE60004

    MOOSE RACING Cylinder - Standard - Polaris MSE60004

    MOOSE RACING

    $622.95
    MOOSE RACING Cylinder Standard Polaris MSE60004Replace your damaged or worn OEM cylinder, Made from cast aluminum; nickel silicon carbide plated, Precision-machined and honed to OEM stock bore sizes, Extremely durable low-friction bore surface allows for...
    09310963
    SKU:
    09310963
    Availability:
    Ships Same Business Day
    Weight:
    7.30 LBS
    COLOR/FINISH:
    GRAY
    CYLINDER BORE COATING:
    NICKEL-SILICON CARBIDE
    CYLINDER DIAMETER METRIC:
    93.00 MM
    DISPLACEMENT:
    875 CC
    RIDING STYLE:
    UTV
    CYLINDER DIAMETER:
    93,00 MM
    ENGINE TYPE:
    4-CYCLE
    MATERIAL:
    CAST
    PRODUCT NAME:
    CYLINDER
    BORE SIZE METRIC:
    STANDARD
    MATERIAL:
    ALUMINUM
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $622.95
    Subtotal:
  • MOOSE RACING Motor Gasket Kit with Seal - Brute Force 811881

    MOOSE RACING Motor Gasket Kit with Seal - Brute Force 811881

    MOOSE RACING

    $180.13
    MOOSE RACING Motor Gasket Kit with Seal Brute Force 811881Moose can now handle all your gasket and seal needs at a fraction of OEM cost, Rebuild the engine and transmission with total confidence as each set is designed for durability and accurate fit,...
    09340428
    SKU:
    09340428
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    TYPE:
    COMPLETE
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    ATV
    TYPE:
    ENGINE
    RIDING STYLE:
    UTV
    $180.13
    Qty in Cart: 0
    Quantity:
    Price:
    $180.13
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821875

    MOOSE RACING Water Pump Rebuild Kit 821875

    MOOSE RACING

    $56.64
    MOOSE RACING Water Pump Rebuild Kit 821875Include every gasket, O-ring, bearing and seal required to rebuild a water pump, Typical kit includes the following: bearings where applicable; rubber seals; mechanical water pump seal where applicable; side...
    09344849
    SKU:
    09344849
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    TYPE:
    WATER PUMP
    UNITS:
    KIT
    RIDING STYLE:
    ATV
    PRODUCT NAME:
    REPAIR KIT
    RIDING STYLE:
    UTV
    $56.64
    Qty in Cart: 0
    Quantity:
    Price:
    $56.64
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821879

    MOOSE RACING Water Pump Rebuild Kit 821879

    MOOSE RACING

    $65.45
    MOOSE RACING Water Pump Rebuild Kit 821879Include every gasket, O-ring, bearing and seal required to rebuild a water pump, Typical kit includes the following: bearings where applicable; rubber seals; mechanical water pump seal where applicable; side...
    09344850
    SKU:
    09344850
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    RIDING STYLE:
    ATV
    TYPE:
    WATER PUMP
    UNITS:
    KIT
    PRODUCT NAME:
    REPAIR KIT
    RIDING STYLE:
    UTV
    $65.45
    Qty in Cart: 0
    Quantity:
    Price:
    $65.45
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821903

    MOOSE RACING Water Pump Rebuild Kit 821903

    MOOSE RACING

    $82.01
    MOOSE RACING Water Pump Rebuild Kit 821903Include every gasket, O-ring, bearing and seal required to rebuild a water pump, Typical kit includes the following: bearings where applicable; rubber seals; mechanical water pump seal where applicable; side...
    09344851
    SKU:
    09344851
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    WATER PUMP
    UNITS:
    KIT
    RIDING STYLE:
    ATV
    $82.01
    Qty in Cart: 0
    Quantity:
    Price:
    $82.01
    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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