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
- MOOSE UTILITY Clutch Cover Gasket Seal 500-1265-PU – Durable seal for clutch cover protection.
- WINDEROSA Standard Bore Gasket Kit 810585 – Complete kit for engine sealing and rebuilds.
- WORKS CONNECTION Engine Timing Plug 24-590 – Precision plug for accurate timing adjustments.
- MOOSE RACING Connecting Rod MR5026 – High-strength rod for engine durability.
- MOOSE RACING Water Pump Rebuild Kit 821865 – Comprehensive kit for water pump maintenance.
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
-
COMETIC Clutch Gasket - Honda EC311032AFM
COMETIC
$17.95A failing clutch cover gasket leads to oil seepage, reduced seal integrity, and potential engine damage—especially in high-performance applications where heat and pressure are extreme. The COMETIC...09344433- SKU:
- 09344433
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- RIDING STYLE:
- ATV
- TYPE:
- CLUTCH COVER
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- MODEL:
- HI-PERFORMANCE
$17.95Qty in Cart: 0Quantity:Price:$17.95Subtotal: -
COMETIC Stator Gasket - Honda EC312047F
COMETIC
$11.95OEM stator gaskets fail prematurely because they stick to engine cases and deteriorate under heat cycling—costing you downtime and frustration. COMETIC's AFM material eliminates both problems with an...09344434- SKU:
- 09344434
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- THICKNESS METRIC:
- 1.19 MM
- UNITS:
- EACH
- TYPE:
- STATOR COVER
- MATERIAL:
- FIBER
- RIDING STYLE:
- OFF-ROAD
- THICKNESS:
- 1,19 MM (0,047')
- THICKNESS IMPERIAL:
- 0,047'
$11.95 -
COMETIC Stator Gasket - Yamaha EC315032AFM
COMETIC
$23.95OEM stator cover gaskets fail prematurely due to heat cycling and limited sealing surfaces on modern engine cases. The COMETIC Stator Gasket solves this with an aluminum-core AFM material that...09344437- SKU:
- 09344437
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PRODUCT NAME:
- GASKET
- MODEL:
- HI-PERFORMANCE
- TYPE:
- STATOR COVER
$23.95 -
COMETIC Clutch Gasket - Yamaha EC316032AFM
COMETIC
$22.95Clutch cover gasket failure leads to costly oil seepage and potential engine case damage—especially in high-performance applications where thermal cycling is relentless. The COMETIC EC316032AFM...09344438- SKU:
- 09344438
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TYPE:
- CLUTCH COVER
$22.95Qty in Cart: 0Quantity:Price:$22.95Subtotal: -
COMETIC Clutch Gasket - Honda EC344032AFM
COMETIC
$18.95A quality clutch cover gasket is essential for preventing oil seepage and maintaining proper engine case integrity—especially in high-performance applications where heat and pressure demand...09344442- SKU:
- 09344442
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- CLUTCH COVER
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$18.95 -
COMETIC Stator Gasket - Honda EC361032AFM
COMETIC
$18.95Stator cover gaskets endure constant thermal cycling and vibration—conventional gaskets fail by sticking to engine cases, forcing time-consuming removal and risking case damage. The COMETIC Stator...09344447- SKU:
- 09344447
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- TYPE:
- STATOR COVER
$18.95 -
COMETIC Stator Gasket - Honda EC981032AFM
COMETIC
$18.95Stock Honda stator cover gaskets fail because they stick to the engine case, forcing time-consuming removal and scraping during service intervals. The COMETIC Stator Gasket uses AFM material—a...09344509- SKU:
- 09344509
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- RIDING STYLE:
- ATV
- TYPE:
- STATOR COVER
- PRODUCT NAME:
- GASKET
- THICKNESS:
- 0,81 MM (0,032')
- THICKNESS METRIC:
- 0.81 MM
- UNITS:
- EACH
- MODEL:
- HI-PERFORMANCE
- THICKNESS IMPERIAL:
- 0,032'
$18.95 -
COMETIC Exhaust Gasket - Polaris EX015042AM
COMETIC
$4.95A failed exhaust gasket means catastrophic air leaks, loss of back-pressure, and potential engine damage—exactly what you can't afford during a race or on a demanding build. The COMETIC EX015042AM...09344519- SKU:
- 09344519
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- THICKNESS METRIC:
- 1.07 MM
- TYPE:
- EXHAUST
- UNITS:
- SET
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- 0,042'
- RIDING STYLE:
- ATV
$4.95 -
COMETIC Exhaust Gasket - Polaris EX038042AM
COMETIC
$7.95Exhaust gasket failure leads to leaks, performance loss, and potential engine damage—especially under high heat and boost conditions. The COMETIC EX038042AM is engineered with dual-layer construction...09344520- SKU:
- 09344520
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ATV
- THICKNESS METRIC:
- 1.07 MM
- TYPE:
- EXHAUST
- THICKNESS IMPERIAL:
- 0,042'
- UNITS:
- SET
$7.95 -
COMETIC Exhaust Gasket - Polaris EX452SP1064AM
COMETIC
$20.95A failed exhaust gasket means lost compression, poor sealing, and potential engine damage—especially under high-performance conditions. The COMETIC EX452SP1064AM delivers reliable, leak-free...09344537- SKU:
- 09344537
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- UTV
- THICKNESS METRIC:
- 1.63 MM
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- 0,064'
- MODEL:
- HI-PERFORMANCE
- TYPE:
- EXHAUST
- UNITS:
- SET
$20.95 -
COMETIC Gasket Set - 96 mm - Yamaha C3066-EST
COMETIC
$108.95A quality gasket set is the foundation of a reliable top-end rebuild—poor sealing leads to compression loss, oil leakage, and catastrophic engine failure. The COMETIC C3066-EST delivers the sealing...09340877- SKU:
- 09340877
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- BORE SIZE METRIC:
- 96.00 MM
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
$108.95 -
COMETIC Top End Gasket Kit - 98 mm - Yamaha C3068-EST
COMETIC
$109.95A factory gasket kit won't cut it when you're running high cylinder pressures and demanding boost levels. The COMETIC C3068-EST delivers the sealing reliability your top end needs with multi-layered...09340878- SKU:
- 09340878
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
- BORE SIZE METRIC:
- 98.00 MM
- TYPE:
- TOP END
$109.95 -
COMETIC Clutch Gasket - Yamaha C7800
COMETIC
$23.95A quality clutch gasket is critical to maintaining a reliable seal on your Yamaha C7800 engine—any weeping or failure here compromises your entire drivetrain. The COMETIC Clutch Gasket eliminates the...09344333- SKU:
- 09344333
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- TYPE:
- CLUTCH COVER
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ATV
- THICKNESS IMPERIAL:
- 0.060'
- UNITS:
- EACH
$23.95 -
COMETIC Clutch Gasket - Kawasaki EC1030032AFM
COMETIC
$24.95Clutch cover gasket failures lead to costly oil seepage and engine case damage—especially in high-performance or frequently serviced engines. The COMETIC EC1030032AFM eliminates these problems with a...09344364- SKU:
- 09344364
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- 0,032'
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TYPE:
- CLUTCH COVER
$24.95 -
COMETIC Clutch Gasket - Yamaha EC314032AFM
COMETIC
$23.95A worn or failing clutch cover gasket leads to oil seepage, contamination, and potential clutch performance degradation. The COMETIC Clutch Gasket eliminates these issues with a chemically bonded AFM...09344436- SKU:
- 09344436
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TYPE:
- CLUTCH COVER
$23.95 -
COMETIC Clutch Gasket - Yamaha EC318032AFM
COMETIC
$14.95Clutch cover gasket failure costs you downtime and money—the COMETIC EC318032AFM eliminates both with a purpose-built AFM gasket that seals reliably without sealants or re-torquing. The...09344439- SKU:
- 09344439
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- TYPE:
- CLUTCH COVER
- RIDING STYLE:
- ATV
$14.95Qty in Cart: 0Quantity:Price:$14.95Subtotal: -
Hot Cams Stage 1 Camshaft for Honda TRX400EX 1999-2008 1007-1
HOT CAMS
$370.60The Hot Cams Stage 1 Camshaft unlocks low-end torque and mid-range responsiveness, giving your TRX400EX the acceleration and power delivery it was built for. If you're running factory cams, you're...TRX400S1A- SKU:
- TRX400S1A
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- APPLICATION:
- EXHAUST
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 246°
- RIDING STYLE:
- ATV
- EXHAUST LIFT METRIC:
- 9.00 MM
- INTAKE DURATION IMPERIAL:
- 246°
- INTAKE LIFT METRIC:
- 9.00 MM
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- STAGE 1
$370.60Qty in Cart: 0Quantity:Price:$370.60Subtotal: -
Hot Cams Stage 1 Camshaft for Yamaha Raptor 350 2004-2006 4017-1
HOT CAMS
$335.95If you're running a Raptor 350 and want measurable gains in throttle response and mid-range acceleration without fabrication headaches, the Hot Cams Stage 1 is your bolt-on solution. This camshaft is...YFM350S1A- SKU:
- YFM350S1A
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- APPLICATION:
- EXHAUST
- EXHAUST DURATION IMPERIAL:
- 250°
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- INTAKE DURATION IMPERIAL:
- 250°
- EXHAUST LIFT METRIC:
- 10.00 MM
- INTAKE LIFT METRIC:
- 10.00 MM
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- STAGE 1
$335.95Qty in Cart: 0Quantity:Price:$335.95Subtotal: -
Hot Cams Stage 1 Camshaft for Yamaha YFM660R Raptor 2001-2005 4011-1
HOT CAMS
$377.95The Hot Cams Stage 1 Camshaft transforms your YFM660R Raptor's low-end delivery, putting usable torque where you need it most—off the line and through the mid-range. If you're looking to gain a...YFM660S1A- SKU:
- YFM660S1A
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- STAGE 1
- EXHAUST LIFT METRIC:
- 9.40 MM
- INTAKE LIFT METRIC:
- 8.50 MM
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 246°
- INTAKE DURATION IMPERIAL:
- 254°
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
$377.95 -
Hot Cams Camshaft for Yamaha YFM660 Raptor 2001-2005 4005-2
HOT CAMS
$358.95If you're running a YFM660 Raptor in competition, your camshaft is the bridge between fuel and motion—and a poorly matched cam will leave horsepower on the table. Hot Cams' stage-selectable designs...YFM660S2A- SKU:
- YFM660S2A
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- APPLICATION:
- EXHAUST
- EXHAUST DURATION IMPERIAL:
- 259°
- TYPE:
- STAGE 2
- UNITS:
- EACH
- INTAKE LIFT METRIC:
- 9.75 MM
- APPLICATION:
- INTAKE
- EXHAUST LIFT METRIC:
- 10.28 MM
- RIDING STYLE:
- ATV
- INTAKE DURATION IMPERIAL:
- 246°
- PRODUCT NAME:
- CAMSHAFT
$358.95Qty in Cart: 0Quantity:Price:$358.95Subtotal:
