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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 816230

    MOOSE RACING Clutch Cover Gasket 816230

    MOOSE RACING

    $12.71
    A leaking clutch cover gasket compromises engine sealing and invites oil contamination into critical drivetrain components. The MOOSE RACING Clutch Cover Gasket 816230 delivers OEM-equivalent sealing performance at a fraction of OEM costs, using...
    09341709
    SKU:
    09341709
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH COVER
    RIDING STYLE:
    STREET
    $12.71
    Qty in Cart: 0
    Quantity:
    Price:
    $12.71
    Subtotal:
  • MOOSE RACING Head Cover Gasket - Honda 817851

    MOOSE RACING Head Cover Gasket - Honda 817851

    MOOSE RACING

    $14.78
    A leaking valve cover gasket compromises engine performance and invites oil contamination into your combustion chamber. MOOSE RACING's OEM-equivalent head cover gasket restores a factory seal at a fraction of OEM pricing, so you can rebuild with...
    09341710
    SKU:
    09341710
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    PRODUCT NAME:
    GASKET
    MATERIAL:
    RUBBER
    TYPE:
    HEAD COVER
    $14.78
    Qty in Cart: 0
    Quantity:
    Price:
    $14.78
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - Polaris 810926

    MOOSE RACING Top End Gasket Kit - Polaris 810926

    MOOSE RACING

    $52.54
    A complete top-end rebuild demands precision gaskets and seals that won't compromise your engine's integrity or your wallet. This Moose Racing kit delivers OEM-quality components at a fraction of the cost, so you can confidently refresh your engine with...
    09341670
    SKU:
    09341670
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET
    TYPE:
    TOP END
    $52.54
    Qty in Cart: 0
    Quantity:
    Price:
    $52.54
    Subtotal:
  • MOOSE RACING Motor Gasket Kit with Seal - DVX/LTZ/KFX 811847

    MOOSE RACING Motor Gasket Kit with Seal - DVX/LTZ/KFX 811847

    MOOSE RACING

    $165.51
    A complete engine and transmission rebuild demands precision-fit gaskets and seals—any leak or misalignment undermines performance and reliability. This Moose Racing Motor Gasket Kit eliminates the hassle of sourcing individual components by bundling...
    09341676
    SKU:
    09341676
    Availability:
    Ships Same Business Day
    Weight:
    0.46 LBS
    $165.51
    Qty in Cart: 0
    Quantity:
    Price:
    $165.51
    Subtotal:
  • MOOSE RACING Motor Gasket Kit with Seal - TRX450R 811868

    MOOSE RACING Motor Gasket Kit with Seal - TRX450R 811868

    MOOSE RACING

    $211.44
    A complete engine and transmission rebuild requires precision-fit gaskets and seals that won't compromise your work or your budget. The MOOSE RACING Motor Gasket Kit delivers OEM-quality components at a fraction of dealership pricing, letting you rebuild...
    09341677
    SKU:
    09341677
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    $211.44
    Qty in Cart: 0
    Quantity:
    Price:
    $211.44
    Subtotal:
  • MOOSE RACING Motor Gasket Kit with Seal - YFZ450 811869

    MOOSE RACING Motor Gasket Kit with Seal - YFZ450 811869

    MOOSE RACING

    $164.13
    Engine and transmission rebuilds demand precision gaskets and seals—any leak or poor fit compromises performance and reliability. The MOOSE RACING Motor Gasket Kit delivers OEM-quality components at a fraction of the cost, giving you the confidence to...
    09341678
    SKU:
    09341678
    Availability:
    Ships Same Business Day
    Weight:
    0.42 LBS
    $164.13
    Qty in Cart: 0
    Quantity:
    Price:
    $164.13
    Subtotal:
  • MOOSE RACING Motor Gasket Kit with Seal - Honda 811904

    MOOSE RACING Motor Gasket Kit with Seal - Honda 811904

    MOOSE RACING

    $222.44
    A complete engine and transmission rebuild demands precision seals and gaskets that won't compromise your work or drain your budget. MOOSE Racing delivers OEM-equivalent quality at a fraction of the cost, giving you the confidence to rebuild without...
    09341679
    SKU:
    09341679
    Availability:
    Ships Same Business Day
    Weight:
    0.46 LBS
    $222.44
    Qty in Cart: 0
    Quantity:
    Price:
    $222.44
    Subtotal:
  • MOOSE RACING Motor Gasket Kit with Seal - Suzuki 811916

    MOOSE RACING Motor Gasket Kit with Seal - Suzuki 811916

    MOOSE RACING

    $164.45
    A complete engine and transmission rebuild demands precision-fit gaskets and seals that won't compromise your work or your budget. This MOOSE RACING kit delivers genuine OEM-quality oil seals and gaskets at a fraction of OEM pricing, so you can rebuild...
    09341680
    SKU:
    09341680
    Availability:
    Ships Same Business Day
    Weight:
    0.44 LBS
    $164.45
    Qty in Cart: 0
    Quantity:
    Price:
    $164.45
    Subtotal:
  • MOOSE RACING Motor Gasket Kit with Seal - Kawasaki 811920

    MOOSE RACING Motor Gasket Kit with Seal - Kawasaki 811920

    MOOSE RACING

    $207.29
    A complete engine and transmission rebuild demands precision gaskets and seals that fit right the first time—and OEM replacements can drain your budget fast. This Moose Racing gasket kit delivers genuine OEM-quality seals at a fraction of the cost,...
    09341681
    SKU:
    09341681
    Availability:
    Ships Same Business Day
    Weight:
    0.43 LBS
    $207.29
    Qty in Cart: 0
    Quantity:
    Price:
    $207.29
    Subtotal:
  • VESRAH Complete Gasket Kit - Polaris VG-P002C

    VESRAH Complete Gasket Kit - Polaris VG-P002C

    VESRAH

    $44.12
    A complete engine rebuild demands precision-fit gaskets and seals—any compromise risks compression loss, coolant leaks, and catastrophic engine failure. The VESRAH VG-P002C delivers OEM-quality gasket sets engineered to exact specifications, ensuring...
    09340253
    SKU:
    09340253
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    TYPE:
    COMPLETE
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    ATV
    UNITS:
    SET
    $44.12
    Qty in Cart: 0
    Quantity:
    Price:
    $44.12
    Subtotal:
  • On Sale
    VESRAH Connecting Rod Kit VA-3009

    VESRAH Connecting Rod Kit VA-3009

    VESRAH

    MSRP: $159.95
    Now: $131.00
    Was: $159.95
    A connecting rod failure mid-race or mid-build can derail months of preparation and thousands in investment. The VESRAH VA-3009 is a forged, precision-engineered connecting rod kit that eliminates flex and inconsistency, delivering the reliability you...
    VA3009
    SKU:
    VA3009
    Availability:
    Ships Same Business Day
    Weight:
    2.12 LBS
    MATERIAL:
    FORGED
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    FEATURES:
    INCLUDES THRUST WASHERS
    MATERIAL:
    STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    MSRP: $159.95
    Now: $131.00
    Was: $159.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $159.95
    Now: $131.00
    Was: $159.95
    Subtotal:
  • VESRAH Exhaust Valve GG-1016-EX

    VESRAH Exhaust Valve GG-1016-EX

    VESRAH

    $28.17
    A worn or damaged exhaust valve compromises engine efficiency, reduces power output, and can lead to costly internal damage if left unaddressed. The VESRAH GG-1016-EX is precision-engineered to restore OEM performance specifications, ensuring reliable...
    GG1016EX
    SKU:
    GG1016EX
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    APPLICATION:
    EXHAUST
    HEAD DIAMETER METRIC:
    28.00 MM
    PRODUCT NAME:
    VALVE
    LENGTH METRIC:
    89.95 MM
    HEAD DIAMETER:
    28,00 MM
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    STEM DIAMETER METRIC:
    5.50 MM
    UNITS:
    EACH
    $28.17
    Qty in Cart: 0
    Quantity:
    Price:
    $28.17
    Subtotal:
  • VESRAH Intake Valve GG-1016-IN

    VESRAH Intake Valve GG-1016-IN

    VESRAH

    $21.50
    A worn or damaged intake valve compromises combustion efficiency, reduces power output, and can lead to catastrophic engine failure if left unaddressed. The VESRAH Intake Valve GG-1016-IN is precision-manufactured to exacting OEM specifications, ensuring...
    GG1016IN
    SKU:
    GG1016IN
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    HEAD DIAMETER METRIC:
    32.00 MM
    APPLICATION:
    INTAKE
    LENGTH METRIC:
    91.30 MM
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    STEM DIAMETER METRIC:
    5.50 MM
    HEAD DIAMETER:
    32,00 MM
    $21.50
    Qty in Cart: 0
    Quantity:
    Price:
    $21.50
    Subtotal:
  • VESRAH Intake Valve GG-1017-IN

    VESRAH Intake Valve GG-1017-IN

    VESRAH

    $23.33
    A worn or damaged intake valve directly impacts combustion efficiency, fuel economy, and overall engine reliability. The VESRAH Intake Valve GG-1017-IN restores OEM performance specifications with precision-manufactured construction, ensuring consistent...
    GG1017IN
    SKU:
    GG1017IN
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    APPLICATION:
    INTAKE
    UNITS:
    EACH
    LENGTH METRIC:
    93.07 MM
    HEAD DIAMETER:
    31,00 MM
    HEAD DIAMETER METRIC:
    31.00 MM
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    OFF-ROAD
    STEM DIAMETER METRIC:
    5.50 MM
    $23.33
    Qty in Cart: 0
    Quantity:
    Price:
    $23.33
    Subtotal:
  • VESRAH Intake Valve GG-1020-IN

    VESRAH Intake Valve GG-1020-IN

    VESRAH

    $24.17
    A worn or damaged intake valve compromises combustion efficiency, reduces power output, and can lead to catastrophic engine failure if left unaddressed. The VESRAH Intake Valve GG-1020-IN is precision-engineered to restore OEM-specification performance,...
    GG1020IN
    SKU:
    GG1020IN
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    APPLICATION:
    INTAKE
    HEAD DIAMETER:
    32,00 MM
    LENGTH METRIC:
    91.30 MM
    RIDING STYLE:
    ATV
    HEAD DIAMETER METRIC:
    32.00 MM
    STEM DIAMETER METRIC:
    5.50 MM
    PRODUCT NAME:
    VALVE
    UNITS:
    EACH
    $24.17
    Qty in Cart: 0
    Quantity:
    Price:
    $24.17
    Subtotal:
  • VESRAH Exhaust Valve GG-3016-EX

    VESRAH Exhaust Valve GG-3016-EX

    VESRAH

    $30.33
    Valve degradation compromises combustion efficiency and engine reliability, leading to performance loss and costly repairs. The VESRAH Exhaust Valve GG-3016-EX is precision-engineered to match OEM specifications, ensuring proper sealing, thermal...
    GG3016EX
    SKU:
    GG3016EX
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    HEAD DIAMETER METRIC:
    28.00 MM
    PRODUCT NAME:
    VALVE
    APPLICATION:
    EXHAUST
    HEAD DIAMETER:
    28,00 MM
    LENGTH METRIC:
    87.84 MM
    RIDING STYLE:
    ATV
    STEM DIAMETER METRIC:
    5.50 MM
    UNITS:
    EACH
    $30.33
    Qty in Cart: 0
    Quantity:
    Price:
    $30.33
    Subtotal:
  • VESRAH Intake Valve GG-3016-IN

    VESRAH Intake Valve GG-3016-IN

    VESRAH

    $20.17
    Maintaining proper valve function is critical to engine reliability and performance—worn or damaged intake valves compromise combustion efficiency and can lead to costly engine damage. The VESRAH Intake Valve GG-3016-IN delivers OEM-equivalent precision...
    GG3016IN
    SKU:
    GG3016IN
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    HEAD DIAMETER METRIC:
    32.00 MM
    LENGTH METRIC:
    88.66 MM
    STEM DIAMETER METRIC:
    5.50 MM
    APPLICATION:
    INTAKE
    PRODUCT NAME:
    VALVE
    HEAD DIAMETER:
    32,00 MM
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    $20.17
    Qty in Cart: 0
    Quantity:
    Price:
    $20.17
    Subtotal:
  • VESRAH Intake Valve GG-3021-IN

    VESRAH Intake Valve GG-3021-IN

    VESRAH

    $22.67
    Factory-fresh valve performance without factory downtime. The VESRAH Intake Valve GG-3021-IN is precision-manufactured to OEM specifications, ensuring reliable sealing, optimal airflow, and long service intervals. Whether you're rebuilding a tired engine...
    GG3021IN
    SKU:
    GG3021IN
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    APPLICATION:
    INTAKE
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    ATV
    STEM DIAMETER METRIC:
    5.50 MM
    UNITS:
    EACH
    LENGTH METRIC:
    88.57 MM
    HEAD DIAMETER:
    33,00 MM
    HEAD DIAMETER METRIC:
    33.00 MM
    $22.67
    Qty in Cart: 0
    Quantity:
    Price:
    $22.67
    Subtotal:
  • VESRAH Intake Valve GG-1026-IN

    VESRAH Intake Valve GG-1026-IN

    VESRAH

    $26.00
    A worn or damaged intake valve can compromise combustion efficiency, reduce horsepower, and accelerate engine wear. The VESRAH Intake Valve GG-1026-IN restores precision valve function with OEM-equivalent performance, ensuring reliable sealing and...
    09260067
    SKU:
    09260067
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    LENGTH METRIC:
    93.50 MM
    PRODUCT NAME:
    VALVE
    APPLICATION:
    INTAKE
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    HEAD DIAMETER METRIC:
    25.50 MM
    STEM DIAMETER METRIC:
    5.50 MM
    HEAD DIAMETER:
    25,50 MM
    $26.00
    Qty in Cart: 0
    Quantity:
    Price:
    $26.00
    Subtotal:
  • VESRAH Intake Valve GG-1031-IN

    VESRAH Intake Valve GG-1031-IN

    VESRAH

    $32.00
    Your engine's intake valves are critical to combustion efficiency and overall performance—factory valves wear, warp, and lose precision over time. The VESRAH Intake Valve GG-1031-IN is precision-manufactured to match or exceed OEM specifications,...
    09260068
    SKU:
    09260068
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    APPLICATION:
    INTAKE
    LENGTH METRIC:
    81.40 MM
    PRODUCT NAME:
    VALVE
    UNITS:
    EACH
    STEM DIAMETER METRIC:
    5.50 MM
    RIDING STYLE:
    ATV
    HEAD DIAMETER:
    34,00 MM
    HEAD DIAMETER METRIC:
    34.00 MM
    $32.00
    Qty in Cart: 0
    Quantity:
    Price:
    $32.00
    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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