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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 UTILITY Clutch Cover Gasket Seal 100-3001-PU

    MOOSE UTILITY Clutch Cover Gasket Seal 100-3001-PU

    MOOSE UTILITY

    $17.95
    MOOSE UTILITY Clutch Cover Gasket Seal
    09351188
    SKU:
    09351188
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    RIDING STYLE:
    UTV
    APPLICATION:
    CLUTCH COVER
    PRODUCT NAME:
    SEAL
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    $17.95
    Qty in Cart: 0
    Quantity:
    Price:
    $17.95
    Subtotal:
  • WINDEROSA Standard Bore Gasket Kit 810585

    WINDEROSA Standard Bore Gasket Kit 810585

    WINDEROSA

    $53.82
    Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noise, Nickel Silicon Carbide plated for...
    09341940
    SKU:
    09341940
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    STYLE:
    STANDARD
    TYPE:
    TOP END
    PRODUCT NAME:
    GASKET KIT
    ENGINE TYPE:
    4-STROKE
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    MATERIAL:
    NICKEL SILICON CARBIDE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $53.82
    Qty in Cart: 0
    Quantity:
    Price:
    $53.82
    Subtotal:
  • WINDEROSA Standard Bore Gasket Kit 810868

    WINDEROSA Standard Bore Gasket Kit 810868

    WINDEROSA

    $78.18
    Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noise, Nickel Silicon Carbide plated for...
    09341941
    SKU:
    09341941
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    TYPE:
    TOP END
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    ATV
    MATERIAL:
    NICKEL SILICON CARBIDE
    STYLE:
    STANDARD
    $78.18
    Qty in Cart: 0
    Quantity:
    Price:
    $78.18
    Subtotal:
  • WINDEROSA Standard Bore Gasket Kit 810881

    WINDEROSA Standard Bore Gasket Kit 810881

    WINDEROSA

    $119.05
    Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noise, Nickel Silicon Carbide plated for...
    09343136
    SKU:
    09343136
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    TYPE:
    TOP END
    UNITS:
    KIT
    MATERIAL:
    NICKEL SILICON CARBIDE
    STYLE:
    STANDARD
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    ATV
    $119.05
    Qty in Cart: 0
    Quantity:
    Price:
    $119.05
    Subtotal:
  • WINDEROSA Standard Bore Gasket Kit 810969

    WINDEROSA Standard Bore Gasket Kit 810969

    WINDEROSA

    $90.15
    Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noise, Nickel Silicon Carbide plated for...
    09344059
    SKU:
    09344059
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    PRODUCT NAME:
    GASKET KIT
    TYPE:
    TOP END
    MATERIAL:
    NICKEL SILICON CARBIDE
    RIDING STYLE:
    UTV
    UNITS:
    KIT
    STYLE:
    STANDARD
    Qty in Cart: 0
    Quantity:
    Price:
    $90.15
    Subtotal:
  • WINDEROSA Standard Bore Gasket Kit 810970

    WINDEROSA Standard Bore Gasket Kit 810970

    WINDEROSA

    $77.98
    Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noise, Nickel Silicon Carbide plated for...
    09344756
    SKU:
    09344756
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    TYPE:
    TOP END
    UNITS:
    KIT
    MATERIAL:
    NICKEL SILICON CARBIDE
    RIDING STYLE:
    UTV
    STYLE:
    STANDARD
    PRODUCT NAME:
    GASKET KIT
    $77.98
    Qty in Cart: 0
    Quantity:
    Price:
    $77.98
    Subtotal:
  • WORKS CONNECTION Engine Timing Plug 24-590

    WORKS CONNECTION Engine Timing Plug 24-590

    WORKS CONNECTION

    $49.95
    Precision-machined from 6061 T-6 aluminum, Simple positive installation with an Allen wrench, Set of two plugs replaces the stock plugs, Polished to a mirror finish prior to anodizing, resulting in a brilliant look, Anodized finish, Made in the U.S.A.
    09500261
    SKU:
    09500261
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    TYPE:
    ENGINE
    UNITS:
    SET
    MATERIAL:
    6061 T-6 ALUMINUM
    COLOR/FINISH:
    ANODIZED
    COLOR/FINISH:
    BLUE
    PRODUCT NAME:
    PLUG
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    $49.95
    Qty in Cart: 0
    Quantity:
    Price:
    $49.95
    Subtotal:
  • MOOSE RACING Ring Set - For 94 mm Piston CPN2-3701

    MOOSE RACING Ring Set - For 94 mm Piston CPN2-3701

    MOOSE RACING

    $35.95
    Made in the U.S.A., Be sure to use race fuel with some applications
    09120246
    SKU:
    09120246
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    PISTON SIZE METRIC:
    STANDARD
    PRODUCT NAME:
    PISTON RING
    UNITS:
    SET
    RIDING STYLE:
    ATV
    $35.95
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • MOOSE RACING Connecting Rod MR5026

    MOOSE RACING Connecting Rod MR5026

    MOOSE RACING

    $474.95
    Moose 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 process, Made from proprietary material...
    09230302
    SKU:
    09230302
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    MATERIAL:
    PROPRIETARY ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    STYLE:
    HIGH PERFORMANCE
    PRODUCT NAME:
    CONNECTING ROD
    $474.95
    Qty in Cart: 0
    Quantity:
    Price:
    $474.95
    Subtotal:
  • MOOSE RACING Connecting Rod MR8820

    MOOSE RACING Connecting Rod MR8820

    MOOSE RACING

    $474.95
    Moose 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 process, Made from proprietary material...
    09230303
    SKU:
    09230303
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    MATERIAL:
    PROPRIETARY ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    PRODUCT NAME:
    CONNECTING ROD
    STYLE:
    HIGH PERFORMANCE
    $474.95
    Qty in Cart: 0
    Quantity:
    Price:
    $474.95
    Subtotal:
  • MOOSE RACING Connecting Rod MR5496

    MOOSE RACING Connecting Rod MR5496

    MOOSE RACING

    $474.95
    Moose 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 process, Made from proprietary material...
    09230310
    SKU:
    09230310
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    RIDING STYLE:
    ATV
    MATERIAL:
    PROPRIETARY ALLOY
    UNITS:
    EACH
    PRODUCT NAME:
    CONNECTING ROD
    STYLE:
    HIGH PERFORMANCE
    $474.95
    Qty in Cart: 0
    Quantity:
    Price:
    $474.95
    Subtotal:
  • MOOSE RACING Motor Gasket Kit with Seal - TRX400EX 811829

    MOOSE RACING Motor Gasket Kit with Seal - TRX400EX 811829

    MOOSE RACING

    $95.68
    Moose 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 seals are genuine OEM replacement seals, Sets include...
    M811829
    SKU:
    M811829
    Availability:
    Ships Same Business Day
    Weight:
    0.32 LBS
    TYPE:
    ENGINE
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    ATV
    TYPE:
    COMPLETE
    $95.68
    Qty in Cart: 0
    Quantity:
    Price:
    $95.68
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821865

    MOOSE RACING Water Pump Rebuild Kit 821865

    MOOSE RACING

    $55.22
    Include 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 cover gasket; water pump gasket; snap rings...
    09344846
    SKU:
    09344846
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    ATV
    PRODUCT NAME:
    REPAIR KIT
    UNITS:
    KIT
    TYPE:
    WATER PUMP
    $55.22
    Qty in Cart: 0
    Quantity:
    Price:
    $55.22
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821868

    MOOSE RACING Water Pump Rebuild Kit 821868

    MOOSE RACING

    $66.86
    Include 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 cover gasket; water pump gasket; snap rings...
    09344847
    SKU:
    09344847
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    RIDING STYLE:
    ATV
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    WATER PUMP
    UNITS:
    KIT
    $66.86
    Qty in Cart: 0
    Quantity:
    Price:
    $66.86
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821869

    MOOSE RACING Water Pump Rebuild Kit 821869

    MOOSE RACING

    $42.67
    Include 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 cover gasket; water pump gasket; snap rings...
    09344848
    SKU:
    09344848
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    RIDING STYLE:
    ATV
    TYPE:
    WATER PUMP
    UNITS:
    KIT
    PRODUCT NAME:
    REPAIR KIT
    $42.67
    Qty in Cart: 0
    Quantity:
    Price:
    $42.67
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821962

    MOOSE RACING Water Pump Rebuild Kit 821962

    MOOSE RACING

    $101.22
    Include 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 cover gasket; water pump gasket; snap rings...
    09344863
    SKU:
    09344863
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    RIDING STYLE:
    UTV
    RIDING STYLE:
    ATV
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    WATER PUMP
    UNITS:
    KIT
    $101.22
    Qty in Cart: 0
    Quantity:
    Price:
    $101.22
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - Polaris 810970

    MOOSE RACING Top End Gasket Kit - Polaris 810970

    MOOSE RACING

    $78.76
    Moose 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 each set is designed for durability and...
    09344833
    SKU:
    09344833
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    RIDING STYLE:
    UTV
    TYPE:
    TOP END
    PRODUCT NAME:
    GASKET
    UNITS:
    KIT
    $78.76
    Qty in Cart: 0
    Quantity:
    Price:
    $78.76
    Subtotal:
  • MOOSE RACING Complete Motor Gasket Kit - Polaris 808907

    MOOSE RACING Complete Motor Gasket Kit - Polaris 808907

    MOOSE RACING

    $138.81
    Moose 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 each set is designed for durability and...
    09341011
    SKU:
    09341011
    Availability:
    Ships Same Business Day
    Weight:
    0.33 LBS
    PRODUCT NAME:
    GASKET
    UNITS:
    KIT
    RIDING STYLE:
    ATV
    TYPE:
    COMPLETE
    TYPE:
    ENGINE
    $138.81
    Qty in Cart: 0
    Quantity:
    Price:
    $138.81
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - Kawasaki 810920

    MOOSE RACING Top End Gasket Kit - Kawasaki 810920

    MOOSE RACING

    $83.11
    Moose 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 each set is designed for durability and...
    09341432
    SKU:
    09341432
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    RIDING STYLE:
    ATV
    PRODUCT NAME:
    GASKET
    UNITS:
    KIT
    TYPE:
    TOP END
    $83.11
    Qty in Cart: 0
    Quantity:
    Price:
    $83.11
    Subtotal:
  • MOOSE RACING Motor Gasket Kit with Seal - Can-Am 811956

    MOOSE RACING Motor Gasket Kit with Seal - Can-Am 811956

    MOOSE RACING

    $256.14
    Moose 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 seals are genuine OEM replacement seals, Sets include...
    09343019
    SKU:
    09343019
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    PRODUCT NAME:
    GASKET
    UNITS:
    KIT
    TYPE:
    COMPLETE
    RIDING STYLE:
    ATV
    TYPE:
    ENGINE
    $256.14
    Qty in Cart: 0
    Quantity:
    Price:
    $256.14
    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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