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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 Cams Camshaft for Yamaha Grizzly 660 2002-2008 4034-1

    Hot Cams Camshaft for Yamaha Grizzly 660 2002-2008 4034-1

    HOT CAMS

    $283.95
    A stock camshaft limits your Grizzly 660's potential, leaving power on the table across the RPM range. The HOT CAMS 4034-1 unlocks measurable gains in torque and horsepower while maintaining...
    09250504
    SKU:
    09250504
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    PRODUCT NAME:
    CAMSHAFT
    APPLICATION:
    INTAKE
    INTAKE LIFT METRIC:
    9.02 MM
    RIDING STYLE:
    ATV
    TYPE:
    STAGE 1
    EXHAUST DURATION IMPERIAL:
    248°
    EXHAUST LIFT METRIC:
    9.20 MM
    APPLICATION:
    EXHAUST
    INTAKE DURATION IMPERIAL:
    247°
    UNITS:
    EACH
    $283.95
    Qty in Cart: 0
    Quantity:
    Price:
    $283.95
    Subtotal:
  • Hot Cams Stage 1 Camshaft for Honda TRX300EX 1993-2009 1058-1

    Hot Cams Stage 1 Camshaft for Honda TRX300EX 1993-2009 1058-1

    HOT CAMS

    $309.70
    The stock camshaft in your TRX300EX limits what your engine can actually deliver. Hot Cams Stage 1 swaps that constraint for real low-end torque and snappier throttle response—the kind of gains that...
    09250498
    SKU:
    09250498
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    APPLICATION:
    INTAKE
    EXHAUST LIFT METRIC:
    7.50 MM
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    EXHAUST DURATION IMPERIAL:
    232°
    INTAKE DURATION IMPERIAL:
    238°
    TYPE:
    STAGE 1
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    CAMSHAFT
    INTAKE LIFT METRIC:
    7.05 MM
    $309.70
    Qty in Cart: 0
    Quantity:
    Price:
    $309.70
    Subtotal:
  • Hot Cams Exhaust Camshaft for Polaris Outlaw 500 2006-2007 5046-1E

    Hot Cams Exhaust Camshaft for Polaris Outlaw 500 2006-2007 5046-1E

    HOT CAMS

    $391.95
    If you're serious about extracting maximum performance from your 2006-2007 Polaris Outlaw 500, your stock exhaust cam is leaving power on the table. The HOT CAMS 5046-1E exhaust camshaft unlocks...
    09250151
    SKU:
    09250151
    Availability:
    Ships Same Business Day
    Weight:
    1.61 LBS
    PRODUCT NAME:
    CAMSHAFT
    TYPE:
    STAGE 1
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    EXHAUST LIFT METRIC:
    10.70 MM
    APPLICATION:
    EXHAUST
    EXHAUST DURATION IMPERIAL:
    235°
    Qty in Cart: 0
    Quantity:
    Price:
    $391.95
    Subtotal:
  • MOOSE UTILITY Oneway Clutch Bearing - Suzuki/Yamaha 11-912

    MOOSE UTILITY Oneway Clutch Bearing - Suzuki/Yamaha 11-912

    MOOSE UTILITY

    $75.95
    A worn or damaged one-way clutch bearing will compromise your engine's ability to engage and disengage smoothly, leading to power loss and potential internal damage. The MOOSE UTILITY 11-912 is an...
    09240425
    SKU:
    09240425
    Availability:
    Ships Same Business Day
    Weight:
    0.21 LBS
    PRODUCT NAME:
    BEARING
    APPLICATION:
    CLUTCH
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    $75.95
    Qty in Cart: 0
    Quantity:
    Price:
    $75.95
    Subtotal:
  • HOT RODS Plain Bearing Crankshaft CRBPLKIT-6Y

    HOT RODS Plain Bearing Crankshaft CRBPLKIT-6Y

    HOT RODS

    $43.95
    A quality crankshaft rebuild demands equally rigorous main bearing and seal components—this kit delivers OE-equivalent performance without compromise. Whether you're restoring a Hot Rods stroker or...
    09240411
    SKU:
    09240411
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    APPLICATION:
    CRANKSHAFT
    RIDING STYLE:
    UTV
    PRODUCT NAME:
    BEARING
    TYPE:
    PLAIN
    UNITS:
    PAIR
    $43.95
    Qty in Cart: 0
    Quantity:
    Price:
    $43.95
    Subtotal:
  • HOT RODS Plain Bearing Crankshaft CRBPLKIT-6G

    HOT RODS Plain Bearing Crankshaft CRBPLKIT-6G

    HOT RODS

    $41.95
    A crankshaft rebuild demands precision-engineered bearings and seals that can withstand extreme loads and maintain tight tolerances—this kit delivers exactly that. HOT RODS plain bearing kits are...
    09240410
    SKU:
    09240410
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    TYPE:
    PLAIN
    APPLICATION:
    CRANKSHAFT
    RIDING STYLE:
    UTV
    PRODUCT NAME:
    BEARING
    UNITS:
    PAIR
    $41.95
    Qty in Cart: 0
    Quantity:
    Price:
    $41.95
    Subtotal:
  • HOT RODS Plain Bearing Crankshaft CRBPLKIT-6B

    HOT RODS Plain Bearing Crankshaft CRBPLKIT-6B

    HOT RODS

    $40.95
    A quality crankshaft rebuild starts with precision bearings and seals that can handle the loads of high-performance engines. Hot Rods bearing and seal kits are engineered to OE or better standards,...
    09240409
    SKU:
    09240409
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    TYPE:
    PLAIN
    UNITS:
    PAIR
    APPLICATION:
    CRANKSHAFT
    RIDING STYLE:
    UTV
    PRODUCT NAME:
    BEARING
    $40.95
    Qty in Cart: 0
    Quantity:
    Price:
    $40.95
    Subtotal:
  • HOT RODS Crank Bearings K225

    HOT RODS Crank Bearings K225

    HOT RODS

    $121.95
    A crankshaft is only as reliable as the bearings supporting it, and inferior bearing kits are a common failure point in high-revving engines. The HOT RODS K225 main bearing and seal kit ensures...
    09240042
    SKU:
    09240042
    Availability:
    Ships Same Business Day
    Weight:
    2.10 LBS
    APPLICATION:
    MAIN CRANKSHAFT
    UNITS:
    KIT
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    ATV
    TYPE:
    BALL
    $121.95
    Qty in Cart: 0
    Quantity:
    Price:
    $121.95
    Subtotal:
  • HOT RODS Crank Bearings K023

    HOT RODS Crank Bearings K023

    HOT RODS

    $37.95
    A crankshaft is only as reliable as its bearings. The HOT RODS K023 bearing and seal kit ensures proper load distribution, reduced friction, and extended engine longevity—critical when you're pushing...
    09240041
    SKU:
    09240041
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    RIDING STYLE:
    ATV
    APPLICATION:
    MAIN CRANKSHAFT
    PRODUCT NAME:
    BEARING
    TYPE:
    BALL
    UNITS:
    EACH
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • HOT RODS Crank Bearings K017

    HOT RODS Crank Bearings K017

    HOT RODS

    $115.95
    A crankshaft is only as reliable as the bearings that support it—and compromising on bearing quality is a direct path to catastrophic engine failure. HOT RODS K017 crank bearing kits deliver...
    09240040
    SKU:
    09240040
    Availability:
    Ships Same Business Day
    Weight:
    0.97 LBS
    APPLICATION:
    MAIN CRANKSHAFT
    UNITS:
    KIT
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    ATV
    TYPE:
    BALL
    $115.95
    Qty in Cart: 0
    Quantity:
    Price:
    $115.95
    Subtotal:
  • HOT RODS Crank Bearings K014

    HOT RODS Crank Bearings K014

    HOT RODS

    $138.95
    A crankshaft is only as reliable as its bearing surfaces. The HOT RODS K014 crank bearing kit delivers precision-engineered main bearings and seals that eliminate play, reduce friction, and maintain...
    09240038
    SKU:
    09240038
    Availability:
    Ships Same Business Day
    Weight:
    1.66 LBS
    APPLICATION:
    MAIN CRANKSHAFT
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    ATV
    TYPE:
    BALL
    UNITS:
    SET
    $138.95
    Qty in Cart: 0
    Quantity:
    Price:
    $138.95
    Subtotal:
  • HOT RODS Crank Bearings K013

    HOT RODS Crank Bearings K013

    HOT RODS

    $90.95
    A crankshaft is only as reliable as its bearing system. The HOT RODS K013 Crank Bearings are precision-engineered main bearing and seal kits designed to work seamlessly with HOT RODS crankshaft...
    09240037
    SKU:
    09240037
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    PRODUCT NAME:
    BEARING
    TYPE:
    BALL
    RIDING STYLE:
    ATV
    APPLICATION:
    MAIN CRANKSHAFT
    UNITS:
    KIT
    $90.95
    Qty in Cart: 0
    Quantity:
    Price:
    $90.95
    Subtotal:
  • HOT RODS Connecting Rod 8716

    HOT RODS Connecting Rod 8716

    HOT RODS

    $203.95
    If you're building or rebuilding a high-RPM engine, your connecting rods are the critical link between power and reliability. The HOT RODS 8716 is engineered to handle sustained high-speed operation...
    09230582
    SKU:
    09230582
    Availability:
    Ships Same Business Day
    Weight:
    1.55 LBS
    MATERIAL:
    8620 STEEL
    RIDING STYLE:
    UTV
    RIDING STYLE:
    ATV
    PRODUCT NAME:
    CONNECTING ROD
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $203.95
    Subtotal:
  • HOT RODS Connecting Rod 8729

    HOT RODS Connecting Rod 8729

    HOT RODS

    $185.95
    When you're pushing your engine to high RPM, a weak connecting rod becomes your biggest liability. The HOT RODS 8729 is engineered to handle extreme loads with 8620 AISI steel construction and...
    09230581
    SKU:
    09230581
    Availability:
    Ships Same Business Day
    Weight:
    2.00 LBS
    RIDING STYLE:
    ATV
    MATERIAL:
    8620 STEEL
    PRODUCT NAME:
    CONNECTING ROD
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $185.95
    Subtotal:
  • HOT RODS Connecting Rod 8671

    HOT RODS Connecting Rod 8671

    HOT RODS

    $225.95
    When you're pushing your engine to its limits, your connecting rods are doing the same—transferring massive loads thousands of times per minute. The HOT RODS 8671 Connecting Rod is engineered for...
    09230228
    SKU:
    09230228
    Availability:
    Ships Same Business Day
    Weight:
    1.81 LBS
    RIDING STYLE:
    ATV
    MATERIAL:
    8620 STEEL
    PRODUCT NAME:
    CONNECTING ROD KIT
    UNITS:
    KIT
    ENGINE TYPE:
    4-CYCLE
    Qty in Cart: 0
    Quantity:
    Price:
    $225.95
    Subtotal:
  • HOT RODS Crankshaft 4430

    HOT RODS Crankshaft 4430

    HOT RODS

    $1,377.55
    The HOT RODS Crankshaft 4430 delivers the reliability and performance margin you need when building or rebuilding a high-output engine. Factory-assembled and trued to OEM specifications, this...
    09210607
    SKU:
    09210607
    Availability:
    Ships Same Business Day
    Weight:
    21.60 LBS
    FEATURES:
    STANDARD CRANKSHAFT
    MODEL:
    4-CYCLE
    MATERIAL:
    4140 STEEL
    TYPE:
    OEM STROKE
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    RIDING STYLE:
    ATV
    STROKE LENGTH METRIC:
    71.50 MM
    COLOR/FINISH:
    STEEL
    DISPLACEMENT:
    850 CC
    UNITS:
    ASSEMBLY
    Qty in Cart: 0
    Quantity:
    Price:
    $1,377.55
    Subtotal:
  • HOT RODS Crankshaft 4429

    HOT RODS Crankshaft 4429

    HOT RODS

    $900.95
    The HOT RODS Crankshaft 4429 is a factory-assembled, ready-to-install crankshaft engineered to meet or exceed OEM performance standards. Whether you're rebuilding a high-mileage engine or upgrading...
    09210606
    SKU:
    09210606
    Availability:
    Ships Same Business Day
    Weight:
    14.65 LBS
    DISPLACEMENT:
    450 CC TO 570 CC
    MATERIAL:
    4140 STEEL
    RIDING STYLE:
    UTV
    STROKE LENGTH METRIC:
    73.60 MM
    TYPE:
    OEM STROKE
    FEATURES:
    STANDARD CRANKSHAFT
    MODEL:
    4-CYCLE
    UNITS:
    ASSEMBLY
    COLOR/FINISH:
    STEEL
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    RIDING STYLE:
    ATV
    $900.95
    Qty in Cart: 0
    Quantity:
    Price:
    $900.95
    Subtotal:
  • HOT RODS Crankshaft 4433

    HOT RODS Crankshaft 4433

    HOT RODS

    $339.10
    The HOT RODS Crankshaft 4433 delivers the reliability and performance consistency your engine demands, whether you're running a stock rebuild or a high-output platform. Factory-assembled and trued to...
    09210603
    SKU:
    09210603
    Availability:
    Ships Same Business Day
    Weight:
    19.80 LBS
    MATERIAL:
    4140 STEEL
    STROKE LENGTH METRIC:
    71.50 MM
    TYPE:
    OEM STROKE
    MODEL:
    4-CYCLE
    UNITS:
    ASSEMBLY
    COLOR/FINISH:
    STEEL
    DISPLACEMENT:
    1000 CC
    FEATURES:
    STANDARD CRANKSHAFT
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    RIDING STYLE:
    ATV
    $339.10
    Qty in Cart: 0
    Quantity:
    Price:
    $339.10
    Subtotal:
  • HOT RODS Crankshaft Kit CBK0226

    HOT RODS Crankshaft Kit CBK0226

    HOT RODS

    $1,244.95
    If you're building a high-displacement or stroker engine, your stock crankshaft simply won't cut it. The HOT RODS Crankshaft Kit CBK0226 delivers factory-assembled precision with increased stroke...
    09210600
    SKU:
    09210600
    Availability:
    Ships Same Business Day
    Weight:
    20.30 LBS
    PRODUCT NAME:
    CRANKSHAFT
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    $1,244.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,244.95
    Subtotal:
  • HOT RODS Crankshaft Kit CBK0224

    HOT RODS Crankshaft Kit CBK0224

    HOT RODS

    $1,191.95
    If you're building a high-displacement engine or need to recover stroke lost to boring, the HOT RODS Crankshaft Kit CBK0224 delivers factory-matched precision without compromise. This complete...
    09210599
    SKU:
    09210599
    Availability:
    Ships Same Business Day
    Weight:
    25.00 LBS
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    PRODUCT NAME:
    CRANKSHAFT
    $1,191.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,191.95
    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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