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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 Bearing Connecting Rod - Brown RBPL-003B

    HOT RODS Bearing Connecting Rod - Brown RBPL-003B

    HOT RODS

    $34.95
    A connecting rod is the critical link between your piston and crankshaft—and its bearing surfaces must handle extreme pressures and temperatures without compromise. The HOT RODS Bearing Connecting...
    09230333
    SKU:
    09230333
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    UTV
    STYLE:
    UNDERSIZE
    THICKNESS METRIC:
    1.482 MM - 1.486 MM
    UNITS:
    PAIR
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    ATV
    TYPE:
    ROD
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • HOT RODS Bearing Connecting Rod - Green RBPL-003G

    HOT RODS Bearing Connecting Rod - Green RBPL-003G

    HOT RODS

    $42.95
    A connecting rod is the critical link between your piston and crankshaft—any weakness here directly compromises engine reliability and performance under load. The HOT RODS Bearing Connecting Rod...
    09230334
    SKU:
    09230334
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    ATV
    STYLE:
    OVERSIZE
    THICKNESS METRIC:
    1.490 MM - 1.494 MM
    TYPE:
    ROD
    UNITS:
    SET
    $42.95
    Qty in Cart: 0
    Quantity:
    Price:
    $42.95
    Subtotal:
  • HOT RODS Bearing Connecting Rod - Yellow RBPL-003Y

    HOT RODS Bearing Connecting Rod - Yellow RBPL-003Y

    HOT RODS

    $42.95
    A connecting rod is the critical link between your piston and crankshaft, transmitting combustion forces while maintaining precise geometry under extreme stress. The HOT RODS Bearing Connecting Rod...
    09230335
    SKU:
    09230335
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    ATV
    STYLE:
    STANDARD
    THICKNESS METRIC:
    1.486 MM - 1.490 MM
    TYPE:
    ROD
    RIDING STYLE:
    UTV
    UNITS:
    SET
    $42.95
    Qty in Cart: 0
    Quantity:
    Price:
    $42.95
    Subtotal:
  • HOT RODS Connecting Rod 8675

    HOT RODS Connecting Rod 8675

    HOT RODS

    $232.95
    When you're pushing peak RPM and demanding maximum durability, a stock connecting rod becomes your weakest link. The HOT RODS 8675 is engineered for sustained high-performance operation with...
    09230336
    SKU:
    09230336
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    RIDING STYLE:
    UTV
    STYLE:
    HEAVY DUTY
    ENGINE TYPE:
    4-CYCLE
    MATERIAL:
    8620 STEEL
    $232.95
    Qty in Cart: 0
    Quantity:
    Price:
    $232.95
    Subtotal:
  • HOT RODS Connecting Rod 8688

    HOT RODS Connecting Rod 8688

    HOT RODS

    $225.95
    When you're pushing your engine to the limit, your connecting rods are the critical link between power and catastrophic failure. HOT RODS 8688 connecting rods deliver the strength and precision...
    09230337
    SKU:
    09230337
    Availability:
    Ships Same Business Day
    Weight:
    1.95 LBS
    UNITS:
    KIT
    ENGINE TYPE:
    4-CYCLE
    RIDING STYLE:
    ATV
    MATERIAL:
    8620 STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    $225.95
    Qty in Cart: 0
    Quantity:
    Price:
    $225.95
    Subtotal:
  • HOT RODS Connecting Rod 8691

    HOT RODS Connecting Rod 8691

    HOT RODS

    $305.95
    Whether you're building a high-revving engine or replacing failed OEM rods, the HOT RODS 8691 Connecting Rod delivers the strength and precision needed for sustained performance at extreme RPMs...
    09230338
    SKU:
    09230338
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    UNITS:
    EACH
    ENGINE TYPE:
    4-CYCLE
    RIDING STYLE:
    ATV
    MATERIAL:
    8620 STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    FEATURES:
    INCLUDES THRUST WASHERS
    $305.95
    Qty in Cart: 0
    Quantity:
    Price:
    $305.95
    Subtotal:
  • HOT RODS Connecting Rod 8703

    HOT RODS Connecting Rod 8703

    HOT RODS

    $165.95
    When you're pushing your engine to its limits, connecting rod failure isn't an option—it's catastrophic. The HOT RODS 8703 is engineered for sustained high-RPM performance with certified 8620 AISI...
    09230355
    SKU:
    09230355
    Availability:
    Ships Same Business Day
    Weight:
    1.90 LBS
    FEATURES:
    INCLUDES THRUST WASHERS
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    ENGINE TYPE:
    4-CYCLE
    RIDING STYLE:
    UTV
    MATERIAL:
    8620 STEEL
    $165.95
    Qty in Cart: 0
    Quantity:
    Price:
    $165.95
    Subtotal:
  • HOT RODS Bearing Connecting Rod RBPL-005B

    HOT RODS Bearing Connecting Rod RBPL-005B

    HOT RODS

    $48.95
    A connecting rod is the critical link between your piston and crankshaft—it must handle extreme forces while maintaining tight tolerances, or your entire engine suffers. The HOT RODS Bearing...
    09230358
    SKU:
    09230358
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    TYPE:
    ROD
    RIDING STYLE:
    ATV
    THICKNESS METRIC:
    1.503 MM - 1.506 MM
    UNITS:
    SET
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    UTV
    STYLE:
    UNDERSIZE
    $48.95
    Qty in Cart: 0
    Quantity:
    Price:
    $48.95
    Subtotal:
  • HOT RODS Bearing Connecting Rod RBPL-005Y

    HOT RODS Bearing Connecting Rod RBPL-005Y

    HOT RODS

    $48.95
    A connecting rod is the critical link between your piston and crankshaft—any weakness here compromises both engine reliability and power delivery. The HOT RODS Bearing Connecting Rod (RBPL-005Y)...
    09230361
    SKU:
    09230361
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    ATV
    THICKNESS METRIC:
    1.509 MM - 1.512 MM
    UNITS:
    SET
    PRODUCT NAME:
    BEARING
    TYPE:
    ROD
    STYLE:
    OVERSIZE
    $48.95
    Qty in Cart: 0
    Quantity:
    Price:
    $48.95
    Subtotal:
  • HOT RODS Connecting Rod 8713

    HOT RODS Connecting Rod 8713

    HOT RODS

    $198.95
    When you're building or rebuilding a high-performance engine, your connecting rods are the critical link between power generation and reliability. The HOT RODS 8713 is engineered to handle sustained...
    09230383
    SKU:
    09230383
    Availability:
    Ships Same Business Day
    Weight:
    1.80 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    FEATURES:
    INCLUDES THRUST WASHERS
    ENGINE TYPE:
    4-CYCLE
    MATERIAL:
    8620 STEEL
    $198.95
    Qty in Cart: 0
    Quantity:
    Price:
    $198.95
    Subtotal:
  • HOT RODS Connecting Rod 8613

    HOT RODS Connecting Rod 8613

    HOT RODS

    $219.95
    A connecting rod is only as strong as its weakest point—and this assembly eliminates compromises through precision engineering and high-grade materials. Whether you're building a naturally aspirated...
    09230028
    SKU:
    09230028
    Availability:
    Ships Same Business Day
    Weight:
    2.18 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    ATV
    MATERIAL:
    8620 STEEL
    UNITS:
    KIT
    ENGINE TYPE:
    4-CYCLE
    $219.95
    Qty in Cart: 0
    Quantity:
    Price:
    $219.95
    Subtotal:
  • HOT RODS Connecting Rod 8614

    HOT RODS Connecting Rod 8614

    HOT RODS

    $245.95
    If you're building a high-rpm engine or replacing worn internals, a quality connecting rod is non-negotiable—it's the critical link between your crankshaft and piston, and failure means catastrophic...
    09230029
    SKU:
    09230029
    Availability:
    Ships Same Business Day
    Weight:
    2.18 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    ENGINE TYPE:
    4-CYCLE
    MATERIAL:
    8620 STEEL
    RIDING STYLE:
    UTV
    $245.95
    Qty in Cart: 0
    Quantity:
    Price:
    $245.95
    Subtotal:
  • HOT RODS Cylinder Kit - Rear 30008-K01

    HOT RODS Cylinder Kit - Rear 30008-K01

    HOT RODS

    $690.95
    If your engine is showing signs of wear—reduced compression, increased blow-by, or sluggish performance—a quality big-bore cylinder kit is often the most cost-effective path to restoration or modest...
    09310508
    SKU:
    09310508
    Availability:
    Ships Same Business Day
    Weight:
    4.75 LBS
    COMPRESSION RATIO IMPERIAL:
    8.8:1
    UNITS:
    KIT
    DISPLACEMENT:
    750 CC
    OVERBORE METRIC:
    STANDARD
    RIDING STYLE:
    UTV
    STYLE:
    STANDARD
    BORE SIZE METRIC:
    85.00 MM
    FEATURES:
    REAR
    PRODUCT NAME:
    CYLINDER KIT
    COLOR/FINISH:
    ALUMINUM
    RIDING STYLE:
    ATV
    $690.95
    Qty in Cart: 0
    Quantity:
    Price:
    $690.95
    Subtotal:
  • HOT RODS Big Bore Cylinder Kit 61001-K01

    HOT RODS Big Bore Cylinder Kit 61001-K01

    HOT RODS

    $1,351.95
    A big bore cylinder kit is essential when you're pushing your engine beyond stock limits—it directly increases displacement, allowing more fuel and air into each combustion cycle for measurable power...
    09310511
    SKU:
    09310511
    Availability:
    Ships Same Business Day
    Weight:
    9.45 LBS
    DISPLACEMENT:
    975 CC
    OVERBORE METRIC:
    +5.00 MM
    RIDING STYLE:
    UTV
    COMPRESSION RATIO IMPERIAL:
    10.6:1
    FEATURES:
    MUST USE HEAVY DUTY CONNECTING RODS
    PRODUCT NAME:
    CYLINDER KIT
    UNITS:
    KIT
    STYLE:
    BIG BORE
    BORE SIZE METRIC:
    98.00 MM
    COLOR/FINISH:
    ALUMINUM
    $1,351.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,351.95
    Subtotal:
  • HOT RODS Counter Balancer Bearing Kit - Suzuki BBK0017

    HOT RODS Counter Balancer Bearing Kit - Suzuki BBK0017

    HOT RODS

    $73.95
    A counter balancer bearing failure can compromise your entire engine assembly and create catastrophic damage downstream. The HOT RODS Counter Balancer Bearing Kit BBK0017 delivers OEM-quality...
    09500548
    SKU:
    09500548
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    PRODUCT NAME:
    BEARING KIT
    RIDING STYLE:
    ATV
    TYPE:
    COUNTERBALANCE SHAFT
    UNITS:
    KIT
    $73.95
    Qty in Cart: 0
    Quantity:
    Price:
    $73.95
    Subtotal:
  • HOT RODS Counter Balancer Bearing Kit - Polaris BBK0019

    HOT RODS Counter Balancer Bearing Kit - Polaris BBK0019

    HOT RODS

    $105.95
    A counter balancer bearing kit is essential when rebuilding or servicing your 4-stroke engine—installing worn or damaged bearings compromises shaft alignment and accelerates wear on adjacent...
    09500550
    SKU:
    09500550
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    RIDING STYLE:
    ATV
    TYPE:
    COUNTERBALANCE SHAFT
    UNITS:
    KIT
    PRODUCT NAME:
    BEARING KIT
    $105.95
    Qty in Cart: 0
    Quantity:
    Price:
    $105.95
    Subtotal:
  • HOT RODS Counter Balancer Bearing Kit - Honda BBK0027

    HOT RODS Counter Balancer Bearing Kit - Honda BBK0027

    HOT RODS

    $19.95
    When you're rebuilding a 4-stroke engine or installing a new counter balancer, using OEM-quality bearings isn't optional—it's essential. The HOT RODS Counter Balancer Bearing Kit delivers the...
    09500907
    SKU:
    09500907
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    ATV
    TYPE:
    COUNTERBALANCE SHAFT
    UNITS:
    KIT
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • HOT RODS Counter Balancer Bearing Kit - Polaris BBK0031

    HOT RODS Counter Balancer Bearing Kit - Polaris BBK0031

    HOT RODS

    $31.95
    A counter balancer bearing kit is essential when rebuilding or replacing your engine's counter balancer shaft, as OEM bearings degrade over time and contribute to vibration and premature wear. The...
    09500910
    SKU:
    09500910
    Availability:
    Ships Same Business Day
    Weight:
    1.01 LBS
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    ATV
    TYPE:
    COUNTERBALANCE SHAFT
    UNITS:
    KIT
    $31.95
    Qty in Cart: 0
    Quantity:
    Price:
    $31.95
    Subtotal:
  • HOT RODS Counter Balancer Bearing Kit - Polaris HR00011

    HOT RODS Counter Balancer Bearing Kit - Polaris HR00011

    HOT RODS

    $52.95
    A counter balancer bearing kit is essential whenever you're rebuilding an engine case or installing a new counter balancer shaft. Using OEM-quality bearings here prevents premature wear, reduces...
    09500911
    SKU:
    09500911
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    UNITS:
    KIT
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    ATV
    TYPE:
    COUNTERBALANCE SHAFT
    $52.95
    Qty in Cart: 0
    Quantity:
    Price:
    $52.95
    Subtotal:
  • HOT RODS Counter Balancer BBK0024

    HOT RODS Counter Balancer BBK0024

    HOT RODS

    $61.95
    A counter balancer bearing failure can cascade into catastrophic engine damage, making this rebuild kit essential for any serious 4-stroke build. HOT RODS BBK0024 supplies OEM-grade bearings...
    09500868
    SKU:
    09500868
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    UTV
    TYPE:
    COUNTERBALANCE SHAFT
    UNITS:
    KIT
    PRODUCT NAME:
    BEARING
    $61.95
    Qty in Cart: 0
    Quantity:
    Price:
    $61.95
    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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