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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
  • HOT RODS Crankshaft Kit CBK0152

    HOT RODS Crankshaft Kit CBK0152

    HOT RODS

    $901.95
    If you're building a high-performance engine or planning a displacement increase, the HOT RODS Crankshaft Kit CBK0152 delivers factory-matched precision without the factory limitations. This complete assembly arrives pre-assembled and true to OEM...
    09210422
    SKU:
    09210422
    Availability:
    Ships Same Business Day
    Weight:
    18.15 LBS
    RIDING STYLE:
    UTV
    PRODUCT NAME:
    CRANKSHAFT KIT
    RIDING STYLE:
    ATV
    TYPE:
    STROKER
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $901.95
    Subtotal:
  • HOT RODS Crankshaft Kit CBK0177

    HOT RODS Crankshaft Kit CBK0177

    HOT RODS

    $1,258.95
    If you're building a high-performance engine or rebuilding a tired block, the HOT RODS Crankshaft Kit CBK0177 delivers the durability and precision you need to handle increased displacement and horsepower. This factory-assembled stroker crank comes...
    09210488
    SKU:
    09210488
    Availability:
    Ships Same Business Day
    Weight:
    19.65 LBS
    UNITS:
    KIT
    PRODUCT NAME:
    CRANKSHAFT KIT
    RIDING STYLE:
    ATV
    TYPE:
    OEM
    $1,258.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,258.95
    Subtotal:
  • HOT RODS Crankshaft Kit CBK0178

    HOT RODS Crankshaft Kit CBK0178

    HOT RODS

    $1,277.95
    If you're building a high-performance engine that demands reliability under extreme conditions, the HOT RODS Crankshaft Kit CBK0178 delivers the durability and precision needed for sustained power delivery. This factory-assembled unit meets or exceeds...
    09210489
    SKU:
    09210489
    Availability:
    Ships Same Business Day
    Weight:
    19.35 LBS
    RIDING STYLE:
    UTV
    TYPE:
    OEM
    PRODUCT NAME:
    CRANKSHAFT KIT
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    $1,277.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,277.95
    Subtotal:
  • HOT RODS Crankshaft Kit CBK0179

    HOT RODS Crankshaft Kit CBK0179

    HOT RODS

    $768.95
    If you're building a high-performance engine or restoring a classic with modern reliability, the HOT RODS Crankshaft Kit CBK0179 delivers factory-matched precision with the durability to handle serious power. This complete assembly arrives factory-built...
    09210490
    SKU:
    09210490
    Availability:
    Ships Same Business Day
    Weight:
    13.25 LBS
    PRODUCT NAME:
    CRANKSHAFT KIT
    RIDING STYLE:
    ATV
    TYPE:
    OEM
    UNITS:
    KIT
    $768.95
    Qty in Cart: 0
    Quantity:
    Price:
    $768.95
    Subtotal:
  • HOT RODS Crankshaft Kit CBK0182

    HOT RODS Crankshaft Kit CBK0182

    HOT RODS

    $795.95
    If you're building a high-performance engine or restoring a classic with upgraded displacement, the HOT RODS Crankshaft Kit CBK0182 delivers a factory-assembled solution that meets or exceeds OEM specifications right out of the box. This complete...
    09210493
    SKU:
    09210493
    Availability:
    Ships Same Business Day
    Weight:
    13.90 LBS
    PRODUCT NAME:
    CRANKSHAFT KIT
    RIDING STYLE:
    ATV
    TYPE:
    OEM
    UNITS:
    KIT
    $795.95
    Qty in Cart: 0
    Quantity:
    Price:
    $795.95
    Subtotal:
  • HOT RODS Crankshaft Kit CBK0183

    HOT RODS Crankshaft Kit CBK0183

    HOT RODS

    $874.95
    A stroker crankshaft kit transforms your engine's displacement and torque output, delivering measurable gains in low-end power and mid-range acceleration. The HOT RODS CBK0183 arrives factory-assembled and pre-trued to OEM specifications, eliminating the...
    09210494
    SKU:
    09210494
    Availability:
    Ships Same Business Day
    Weight:
    16.30 LBS
    PRODUCT NAME:
    CRANKSHAFT KIT
    RIDING STYLE:
    ATV
    TYPE:
    OEM
    UNITS:
    KIT
    $874.95
    Qty in Cart: 0
    Quantity:
    Price:
    $874.95
    Subtotal:
  • HOT RODS Crankshaft Kit CBK0184

    HOT RODS Crankshaft Kit CBK0184

    HOT RODS

    $874.95
    If you're rebuilding your engine or stepping up displacement for serious power gains, the HOT RODS Crankshaft Kit CBK0184 delivers the reliability and performance you need without compromise. This factory-assembled unit meets or exceeds OEM...
    09210495
    SKU:
    09210495
    Availability:
    Ships Same Business Day
    Weight:
    16.05 LBS
    TYPE:
    OEM
    PRODUCT NAME:
    CRANKSHAFT KIT
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    $874.95
    Qty in Cart: 0
    Quantity:
    Price:
    $874.95
    Subtotal:
  • HOT RODS Crankshaft Kit CBK0185

    HOT RODS Crankshaft Kit CBK0185

    HOT RODS

    $441.95
    If you're building a high-displacement engine or restoring a performance powerplant, the HOT RODS Crankshaft Kit CBK0185 delivers the precision and durability required for sustained high RPM operation. Factory-assembled and validated to OEM...
    09210496
    SKU:
    09210496
    Availability:
    Ships Same Business Day
    Weight:
    11.50 LBS
    TYPE:
    OEM
    PRODUCT NAME:
    CRANKSHAFT KIT
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $441.95
    Subtotal:
  • HOT RODS Crankshaft Kit CBK0186

    HOT RODS Crankshaft Kit CBK0186

    HOT RODS

    $502.95
    If you're building a high-performance or stroker engine, a quality crankshaft assembly is non-negotiable—it's the backbone of reliable power delivery under extreme conditions. The HOT RODS Crankshaft Kit CBK0186 arrives factory-assembled and pre-tuned to...
    09210497
    SKU:
    09210497
    Availability:
    Ships Same Business Day
    Weight:
    11.50 LBS
    TYPE:
    OEM
    UNITS:
    KIT
    PRODUCT NAME:
    CRANKSHAFT KIT
    RIDING STYLE:
    ATV
    $502.95
    Qty in Cart: 0
    Quantity:
    Price:
    $502.95
    Subtotal:
  • HOT RODS Crankshaft Kit 4406

    HOT RODS Crankshaft Kit 4406

    HOT RODS

    $502.95
    If you're building a high-performance long-stroke engine for your ATV, a quality crankshaft assembly is non-negotiable—it's the foundation that handles increased displacement and stress without compromise. The HOT RODS Crankshaft Kit 4406 arrives...
    09210499
    SKU:
    09210499
    Availability:
    Ships Same Business Day
    Weight:
    9.35 LBS
    RIDING STYLE:
    ATV
    COLOR/FINISH:
    STEEL
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    DISPLACEMENT:
    450 CC
    FEATURES:
    STANDARD CRANKSHAFT
    MODEL:
    4-CYCLE
    STROKE LENGTH METRIC:
    63.40 MM
    TYPE:
    OEM STROKE
    $502.95
    Qty in Cart: 0
    Quantity:
    Price:
    $502.95
    Subtotal:
  • HOT RODS Crankshaft Kit 4409

    HOT RODS Crankshaft Kit 4409

    HOT RODS

    $569.95
    If you're running a long-stroke build on your ATV, a quality crankshaft assembly is non-negotiable—it's the foundation that determines reliability under load and sustained RPM. The HOT RODS 4409 arrives factory-assembled and trued to OEM specs,...
    09210500
    SKU:
    09210500
    Availability:
    Ships Same Business Day
    Weight:
    10.70 LBS
    COLOR/FINISH:
    STEEL
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    MODEL:
    4-CYCLE
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    RIDING STYLE:
    ATV
    STROKE LENGTH METRIC:
    68.00 MM
    DISPLACEMENT:
    350 CC
    FEATURES:
    STANDARD CRANKSHAFT
    TYPE:
    OEM STROKE
    $569.95
    Qty in Cart: 0
    Quantity:
    Price:
    $569.95
    Subtotal:
  • HOT RODS Crankshaft Kit 4410

    HOT RODS Crankshaft Kit 4410

    HOT RODS

    $689.95
    A long-stroke crankshaft delivers measurable gains in low-end torque and overall engine efficiency—critical advantages whether you're chasing lap times or maximizing trail performance. The HOT RODS 4410 Kit arrives factory-assembled and trued to OEM...
    09210501
    SKU:
    09210501
    Availability:
    Ships Same Business Day
    Weight:
    12.30 LBS
    COLOR/FINISH:
    STEEL
    RIDING STYLE:
    ATV
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    STROKE LENGTH METRIC:
    71.50 MM
    DISPLACEMENT:
    500 CC
    FEATURES:
    STANDARD CRANKSHAFT
    MODEL:
    4-CYCLE
    TYPE:
    OEM STROKE
    $689.95
    Qty in Cart: 0
    Quantity:
    Price:
    $689.95
    Subtotal:
  • HOT RODS Crankshaft Kit 4411

    HOT RODS Crankshaft Kit 4411

    HOT RODS

    $360.95
    If you're running a high-displacement build on your ATV or looking to maximize bottom-end reliability under boost, a quality crankshaft assembly is non-negotiable. The HOT RODS Crankshaft Kit 4411 arrives factory-assembled and trued to OEM...
    09210502
    SKU:
    09210502
    Availability:
    Ships Same Business Day
    Weight:
    8.85 LBS
    COLOR/FINISH:
    STEEL
    RIDING STYLE:
    ATV
    STROKE LENGTH METRIC:
    62.20 MM
    DISPLACEMENT:
    250 CC
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    FEATURES:
    STANDARD CRANKSHAFT
    MODEL:
    4-CYCLE
    TYPE:
    OEM STROKE
    $360.95
    Qty in Cart: 0
    Quantity:
    Price:
    $360.95
    Subtotal:
  • HOT RODS Crankshaft Kit CBK0192

    HOT RODS Crankshaft Kit CBK0192

    HOT RODS

    $795.95
    If you're building or rebuilding an engine that demands reliability and performance beyond stock specifications, the HOT RODS Crankshaft Kit CBK0192 delivers the durability of a professional-grade component at a fraction of custom fabrication costs. This...
    09210522
    SKU:
    09210522
    Availability:
    Ships Same Business Day
    Weight:
    14.50 LBS
    TYPE:
    OEM
    PRODUCT NAME:
    CRANKSHAFT KIT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    UTV
    UNITS:
    KIT
    $795.95
    Qty in Cart: 0
    Quantity:
    Price:
    $795.95
    Subtotal:
  • HOT RODS Crankshaft Kit CBK0193

    HOT RODS Crankshaft Kit CBK0193

    HOT RODS

    $1,258.95
    If you're building a high-performance engine or restoring a classic, a quality crankshaft is non-negotiable—it's the foundation that determines reliability under extreme loads and RPM. The HOT RODS Crankshaft Kit CBK0193 arrives factory-assembled and...
    09210523
    SKU:
    09210523
    Availability:
    Ships Same Business Day
    Weight:
    19.75 LBS
    TYPE:
    OEM
    UNITS:
    KIT
    PRODUCT NAME:
    CRANKSHAFT KIT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    UTV
    $1,258.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,258.95
    Subtotal:
  • HOT RODS Crankshaft Kit CBK0121

    HOT RODS Crankshaft Kit CBK0121

    HOT RODS

    $716.95
    A high-performance crankshaft assembly is the backbone of engine durability under extreme operating conditions. The HOT RODS Crankshaft Kit CBK0121 delivers OEM-spec precision with factory-assembled construction, eliminating guesswork and reducing...
    09210411
    SKU:
    09210411
    Availability:
    Ships Same Business Day
    Weight:
    13.00 LBS
    PRODUCT NAME:
    CRANKSHAFT KIT
    RIDING STYLE:
    ATV
    TYPE:
    OEM
    UNITS:
    KIT
    $716.95
    Qty in Cart: 0
    Quantity:
    Price:
    $716.95
    Subtotal:
  • HOT RODS Water Pump Repair Kit - Suzuki WPK0053

    HOT RODS Water Pump Repair Kit - Suzuki WPK0053

    HOT RODS

    $78.95
    A leaking or noisy water pump compromises engine cooling efficiency and can lead to catastrophic overheating. This HOT RODS repair kit restores your Suzuki's cooling system to OEM performance standards with precision-engineered components, eliminating...
    09342959
    SKU:
    09342959
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    ATV
    TYPE:
    WATER PUMP REPAIR
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    $78.95
    Qty in Cart: 0
    Quantity:
    Price:
    $78.95
    Subtotal:
  • HOT RODS Crankshaft Kit 4421

    HOT RODS Crankshaft Kit 4421

    HOT RODS

    $1,292.95
    If you're building a high-performance long-stroke engine for your ATV, the HOT RODS Crankshaft Kit 4421 eliminates the guesswork and machine work typically required for these demanding builds. This complete, factory-assembled unit arrives trued to OEM...
    09210539
    SKU:
    09210539
    Availability:
    Ships Same Business Day
    Weight:
    20.60 LBS
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    COLOR/FINISH:
    STEEL
    FEATURES:
    STANDARD CRANKSHAFT
    TYPE:
    OEM STROKE
    DISPLACEMENT:
    900 CC
    MODEL:
    4-CYCLE
    RIDING STYLE:
    ATV
    STROKE LENGTH METRIC:
    64.40 MM
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    $1,292.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,292.95
    Subtotal:
  • HOT RODS Seal Output Shaft OSK0014

    HOT RODS Seal Output Shaft OSK0014

    HOT RODS

    $29.95
    A leaking countershaft seal will compromise your transmission's integrity and lead to costly damage if left unaddressed. This complete HOT RODS kit eliminates guesswork by bundling everything needed for a proper seal replacement in one purchase. Get your...
    09350550
    SKU:
    09350550
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    UNITS:
    KIT
    APPLICATION:
    COUNTERSHAFT
    APPLICATION:
    TRANSMISSION
    PRODUCT NAME:
    SEAL
    RIDING STYLE:
    ATV
    $29.95
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
  • Bikeman Performance Mo Flow Water Pump Impeller for Polaris RZR 900 2011-2020 10-307

    Bikeman Performance Mo Flow Water Pump Impeller for Polaris RZR 900 2011-2020 10-307

    BIKEMAN PERFORMANCE

    $195.25
    Stock water pump impellers weren't engineered for sustained high-performance driving—they lose efficiency under load and struggle to maintain consistent coolant flow when you need it most. The Bikeman Performance Mo Flow Impeller delivers up to 20%...
    09320260
    SKU:
    09320260
    Availability:
    Ships Same Business Day
    Weight:
    0.46 LBS
    BASE COLOR:
    BLACK
    PRODUCT NAME:
    IMPELLER
    RIDING STYLE:
    UTV
    COLOR/FINISH:
    BLACK
    TYPE:
    WATER PUMP
    UNITS:
    EACH
    $195.25
    Qty in Cart: 0
    Quantity:
    Price:
    $195.25
    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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