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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 Steel Intake Valve for Polaris RZR 570 2012-2013 HC00034

    Hot Cams Steel Intake Valve for Polaris RZR 570 2012-2013 HC00034

    HOT CAMS

    $39.95
    Your Polaris RZR 570's engine demands precision components that can handle sustained high RPM operation without compromise. The HOT CAMS HC00034 intake valve delivers the reliability and airflow...
    09263107
    SKU:
    09263107
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    BASE COLOR:
    BLACK
    RIDING STYLE:
    UTV
    COLOR/FINISH:
    BLACK
    STEM DIAMETER METRIC:
    5.480 MM
    PRODUCT NAME:
    VALVE
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • Hot Cams Steel Exhaust Valve for Polaris Sportsman 400 HO 2008-2014 HC00033

    Hot Cams Steel Exhaust Valve for Polaris Sportsman 400 HO 2008-2014 HC00033

    HOT CAMS

    $75.95
    Factory exhaust valves wear under sustained RPM and heat cycles, robbing your Sportsman 400 HO of compression and throttle response. This Hot Cams replacement restores proper sealing and flow...
    09263106
    SKU:
    09263106
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MATERIAL:
    STEEL
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    BASE COLOR:
    BLACK
    STEM DIAMETER METRIC:
    5.95 MM
    APPLICATION:
    EXHAUST
    COLOR/FINISH:
    BLACK
    $75.95
    Qty in Cart: 0
    Quantity:
    Price:
    $75.95
    Subtotal:
  • Hot Cams Steel Intake Valve Polaris Ranger 800 2010-2014 HC00032

    Hot Cams Steel Intake Valve Polaris Ranger 800 2010-2014 HC00032

    HOT CAMS

    $29.95
    Factory intake valves wear down under sustained performance use, leading to loss of compression, poor sealing, and reduced engine efficiency. The HOT CAMS HC00032 intake valve restores and exceeds...
    09263105
    SKU:
    09263105
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    ATV
    STEM DIAMETER METRIC:
    5.98 MM
    UNITS:
    EACH
    BASE COLOR:
    BLACK
    COLOR/FINISH:
    BLACK
    $29.95
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
  • Hot Cams Steel Exhaust Valve for Polaris Ranger 800 2011-2014 HC00031

    Hot Cams Steel Exhaust Valve for Polaris Ranger 800 2011-2014 HC00031

    HOT CAMS

    $48.95
    Your Polaris Ranger 800's exhaust valves endure extreme thermal and mechanical stress, and OEM components can fail prematurely under high-load conditions. The HOT CAMS HC00031 is a forged-steel...
    09263104
    SKU:
    09263104
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    COLOR/FINISH:
    BLACK
    MATERIAL:
    STEEL
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    STEM DIAMETER METRIC:
    5.97 MM
    APPLICATION:
    EXHAUST
    BASE COLOR:
    BLACK
    $48.95
    Qty in Cart: 0
    Quantity:
    Price:
    $48.95
    Subtotal:
  • Hot Cams Steel Exhaust Valve for 2014-2016 Polaris Ranger 570 HC00030

    Hot Cams Steel Exhaust Valve for 2014-2016 Polaris Ranger 570 HC00030

    HOT CAMS

    $54.95
    If you're running a 2014-2016 Polaris Ranger 570, valve quality directly impacts engine reliability and power delivery under load. The HOT CAMS HC00030 exhaust valve is engineered to withstand the...
    09263103
    SKU:
    09263103
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    COLOR/FINISH:
    BLACK
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    VALVE
    UNITS:
    EACH
    BASE COLOR:
    BLACK
    RIDING STYLE:
    ATV
    STEM DIAMETER METRIC:
    5.460 MM
    MATERIAL:
    STEEL
    $54.95
    Qty in Cart: 0
    Quantity:
    Price:
    $54.95
    Subtotal:
  • Hot Cams Steel Intake Valve for Polaris RZR 900 2015-2018 HC00029

    Hot Cams Steel Intake Valve for Polaris RZR 900 2015-2018 HC00029

    HOT CAMS

    $41.95
    Stock intake valves can become a bottleneck in your RZR 900's breathing efficiency, particularly under sustained high-RPM conditions or aggressive riding. The HOT CAMS HC00029 is a one-piece forged...
    09263102
    SKU:
    09263102
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    COLOR/FINISH:
    BLACK
    OUTSIDE DIAMETER METRIC:
    34.40 MM
    PRODUCT NAME:
    VALVE
    STEM DIAMETER METRIC:
    5.47 MM
    MATERIAL:
    STEEL
    APPLICATION:
    INTAKE
    BASE COLOR:
    BLACK
    LENGTH METRIC:
    95.850 MM
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    $41.95
    Qty in Cart: 0
    Quantity:
    Price:
    $41.95
    Subtotal:
  • Hot Cams Steel Intake Valve for 2012-2014 Polaris Sportsman 550 HC00028

    Hot Cams Steel Intake Valve for 2012-2014 Polaris Sportsman 550 HC00028

    HOT CAMS

    $39.95
    Stock intake valves wear down quickly under regular riding conditions, leading to loss of compression, poor fuel economy, and reduced power delivery. The Hot Cams HC00028 restores your Sportsman...
    09263101
    SKU:
    09263101
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    BASE COLOR:
    BLACK
    MATERIAL:
    STEEL
    PRODUCT NAME:
    VALVE
    APPLICATION:
    INTAKE
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    ATV
    STEM DIAMETER METRIC:
    5.95 MM
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • Hot Cams Titanium Exhaust Valve for 2006-2009 Suzuki LT-R450 QuadRacer 8400024-1

    Hot Cams Titanium Exhaust Valve for 2006-2009 Suzuki LT-R450 QuadRacer 8400024-1

    HOT CAMS

    $150.95
    The stock exhaust valve on your LT-R450 QuadRacer is one of the hardest-working components in your engine—and also one of the first to show wear under sustained high RPM operation. Hot Cams' titanium...
    09262977
    SKU:
    09262977
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    COLOR/FINISH:
    BLACK
    MATERIAL:
    TITANIUM
    APPLICATION:
    EXHAUST
    BASE COLOR:
    BLACK
    PRODUCT NAME:
    VALVE
    STEM DIAMETER METRIC:
    5.47 MM
    UNITS:
    EACH
    RIDING STYLE:
    ATV
    $150.95
    Qty in Cart: 0
    Quantity:
    Price:
    $150.95
    Subtotal:
  • DEL WEST Exhaust Valve DWTRX450R2EV04

    DEL WEST Exhaust Valve DWTRX450R2EV04

    DEL WEST

    $171.95
    Off-road performance demands a valve that can handle extreme temperatures, abrasive conditions, and continuous high-rpm operation without compromise. The DEL WEST Exhaust Valve DWTRX450R2EV04 is...
    09261761
    SKU:
    09261761
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    MATERIAL:
    TITANIUM
    $171.95
    Qty in Cart: 0
    Quantity:
    Price:
    $171.95
    Subtotal:
  • DEL WEST Exhaust Valve DWTRX450R1EV04

    DEL WEST Exhaust Valve DWTRX450R1EV04

    DEL WEST

    $155.95
    Off-road engines demand exhaust valves engineered for extreme conditions—and DEL WEST delivers the durability that wins races. This valve is built from competition-proven designs that handle peak...
    09261760
    SKU:
    09261760
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    APPLICATION:
    EXHAUST
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    PRODUCT NAME:
    VALVE
    MATERIAL:
    TITANIUM
    $155.95
    Qty in Cart: 0
    Quantity:
    Price:
    $155.95
    Subtotal:
  • DEL WEST Exhaust Valve DWTRX450REV04

    DEL WEST Exhaust Valve DWTRX450REV04

    DEL WEST

    $155.95
    Off-road racing demands exhaust components that can withstand extreme temperatures, abrasive conditions, and sustained high RPM operation. The DEL WEST Exhaust Valve DWTRX450REV04 delivers the...
    09261759
    SKU:
    09261759
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    MATERIAL:
    TITANIUM
    Qty in Cart: 0
    Quantity:
    Price:
    $155.95
    Subtotal:
  • DEL WEST Intake Valve DWYFZ450R12IV03 DEL WEST Intake Valve DWYFZ450R12IV03

    DEL WEST Intake Valve DWYFZ450R12IV03

    DEL WEST

    $171.95
    Off-road racing demands valve components engineered for extreme conditions—high RPM reliability, thermal cycling, and sustained performance under competition stress. The DEL WEST Intake Valve...
    09261758
    SKU:
    09261758
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    APPLICATION:
    INTAKE
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    MATERIAL:
    TITANIUM
    $171.95
    Qty in Cart: 0
    Quantity:
    Price:
    $171.95
    Subtotal:
  • Hot Cams Cam Chain Tensioner for Polaris ACE 570 2016-2017 HC00063

    Hot Cams Cam Chain Tensioner for Polaris ACE 570 2016-2017 HC00063

    HOT CAMS

    $179.50
    Hydraulic cam chain tensioners are prone to pressure loss and inconsistency, leading to slack chains, valve timing drift, and costly engine damage. The Hot Cams mechanical automatic tensioner...
    09251318
    SKU:
    09251318
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    PRODUCT NAME:
    CAM CHAIN TENSIONER
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    $179.50
    Qty in Cart: 0
    Quantity:
    Price:
    $179.50
    Subtotal:
  • Hot Cams Camshaft for 2008-2014 Polaris RZR 800 4x4 HC00051

    Hot Cams Camshaft for 2008-2014 Polaris RZR 800 4x4 HC00051

    HOT CAMS

    $507.10
    The stock camshaft in your RZR 800 leaves significant performance on the table. The HOT CAMS HC00051 is engineered to unlock engine potential across the entire RPM band—whether you're building...
    09251253
    SKU:
    09251253
    Availability:
    Ships Same Business Day
    Weight:
    2.56 LBS
    APPLICATION:
    EXHAUST
    EXHAUST DURATION IMPERIAL:
    235°
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    APPLICATION:
    INTAKE
    INTAKE DURATION IMPERIAL:
    240°
    EXHAUST LIFT METRIC:
    10.41 MM
    INTAKE LIFT METRIC:
    10.67 MM
    PRODUCT NAME:
    CAMSHAFT
    TYPE:
    STAGE 1
    $507.10
    Qty in Cart: 0
    Quantity:
    Price:
    $507.10
    Subtotal:
  • Hot Cams Exhaust Camshaft for 2015-2018 Polaris RZR XP 1000 HC00050

    Hot Cams Exhaust Camshaft for 2015-2018 Polaris RZR XP 1000 HC00050

    HOT CAMS

    $394.95
    The HOT CAMS Exhaust Camshaft HC00050 is engineered to unlock measurable gains in both torque delivery and peak horsepower for your 2015-2018 Polaris RZR XP 1000. If you're serious about extracting...
    09251252
    SKU:
    09251252
    Availability:
    Ships Same Business Day
    Weight:
    1.86 LBS
    EXHAUST LIFT METRIC:
    10.18 MM
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    CAMSHAFT
    RIDING STYLE:
    UTV
    TYPE:
    STAGE 2
    $394.95
    Qty in Cart: 0
    Quantity:
    Price:
    $394.95
    Subtotal:
  • Hot Cams Cam Chain for Yamaha YFM350 Warrior 1987-2004 HCDID219090

    Hot Cams Cam Chain for Yamaha YFM350 Warrior 1987-2004 HCDID219090

    HOT CAMS

    $46.95
    A worn or failing cam chain compromises valve timing and engine reliability—especially critical on high-performance builds or older machines that see regular use. The HOT CAMS HCDID219090 delivers...
    09251182
    SKU:
    09251182
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    BASE FINISH:
    RAW
    CHAIN SIZE:
    DID219
    RIDING STYLE:
    ATV
    TYPE:
    CAM
    UNITS:
    EACH
    MODEL:
    ROLLER
    PRODUCT NAME:
    CHAIN
    COLOR/FINISH:
    RAW
    MATERIAL:
    STEEL
    $46.95
    Qty in Cart: 0
    Quantity:
    Price:
    $46.95
    Subtotal:
  • Hot Cams Cam Chain for Polaris RZR 900 2014 HC98XRH2015142

    Hot Cams Cam Chain for Polaris RZR 900 2014 HC98XRH2015142

    HOT CAMS

    $67.95
    A worn or inefficient cam chain compromises valve timing precision and engine reliability—especially critical in high-performance RZR 900 applications where durability under load is non-negotiable...
    09251126
    SKU:
    09251126
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    COLOR/FINISH:
    RAW
    PRODUCT NAME:
    CHAIN
    MATERIAL:
    STEEL
    MODEL:
    SILENT
    TYPE:
    CAM
    UNITS:
    EACH
    CHAIN SIZE:
    98XRH2015
    RIDING STYLE:
    UTV
    BASE FINISH:
    RAW
    $67.95
    Qty in Cart: 0
    Quantity:
    Price:
    $67.95
    Subtotal:
  • Hot Cams Exhaust Camshaft for Yamaha YFZ450R 2009-2021 4303-3E

    Hot Cams Exhaust Camshaft for Yamaha YFZ450R 2009-2021 4303-3E

    HOT CAMS

    $352.75
    If you're serious about extracting maximum performance from your YFZ450R, your camshaft profile is where gains are made. The HOT CAMS 4303-3E exhaust cam delivers measurable improvements in throttle...
    09251125
    SKU:
    09251125
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    APPLICATION:
    EXHAUST
    EXHAUST LIFT METRIC:
    9.65 MM
    TYPE:
    STAGE 3
    PRODUCT NAME:
    CAM
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    EXHAUST DURATION IMPERIAL:
    262°
    $352.75
    Qty in Cart: 0
    Quantity:
    Price:
    $352.75
    Subtotal:
  • Hot Cams Exhaust Camshaft for Yamaha YFZ450R 2009-2020 4289-2E

    Hot Cams Exhaust Camshaft for Yamaha YFZ450R 2009-2020 4289-2E

    HOT CAMS

    $352.75
    If you're running a YFZ450R in competitive racing, cam selection directly impacts your power delivery and throttle response. The Hot Cams 4289-2E exhaust camshaft is engineered to unlock measurable...
    09251010
    SKU:
    09251010
    Availability:
    Ships Same Business Day
    Weight:
    0.76 LBS
    APPLICATION:
    EXHAUST
    EXHAUST DURATION IMPERIAL:
    262°
    PRODUCT NAME:
    CAMSHAFT
    TYPE:
    STAGE 2
    EXHAUST LIFT METRIC:
    9.14 MM
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    $352.75
    Qty in Cart: 0
    Quantity:
    Price:
    $352.75
    Subtotal:
  • Hot Cams Cam Chain for Yamaha YFM700R Raptor 2006-2018 HC98XRH2010126

    Hot Cams Cam Chain for Yamaha YFM700R Raptor 2006-2018 HC98XRH2010126

    HOT CAMS

    $54.95
    The stock cam chain on your YFM700R will eventually stretch and wear, robbing your engine of precision timing and creating unwanted noise. Hot Cams' heat-treated silent chain eliminates both...
    09250758
    SKU:
    09250758
    Availability:
    Ships Same Business Day
    Weight:
    0.53 LBS
    COLOR/FINISH:
    RAW
    MATERIAL:
    STEEL
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    CHAIN SIZE:
    98XRH2010
    PRODUCT NAME:
    CHAIN
    BASE FINISH:
    RAW
    TYPE:
    CAM
    MODEL:
    SILENT
    RIDING STYLE:
    UTV
    $54.95
    Qty in Cart: 0
    Quantity:
    Price:
    $54.95
    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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