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 Top End Hi-Performance Gasket Set C7798
COMETIC
$82.95A quality gasket set is non-negotiable when rebuilding a top end—failure here means wasted machine work and lost track time. The COMETIC C7798 combines multi-layered MLS technology with Extreme Sealing Technology (EST) to handle the combustion pressures...C7798- SKU:
- C7798
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 102.00 MM
- UNITS:
- KIT
$82.95Qty in Cart: 0Quantity:Price:$82.95Subtotal: -
COMETIC Gasket Set - 96 mm - Honda C3139-EST
COMETIC
$98.95High-output 4-stroke engines demand gasket sets engineered for extreme pressure and heat—and the COMETIC C3139-EST delivers exactly that. The multi-layered steel construction with Viton rubber coating ensures reliable sealing across naturally aspirated...09340881- SKU:
- 09340881
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 96.00 MM
- RIDING STYLE:
- ATV
$98.95 -
COMETIC Top End Gasket Set - Honda C3475-EST
COMETIC
$83.95Factory gaskets deteriorate under sustained boost and high cylinder pressures, leading to compression loss and potential coolant seepage that sidelines your engine. The COMETIC C3475-EST Top End Gasket Set uses multi-layered steel construction with...09344176- SKU:
- 09344176
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BORE SIZE METRIC:
- 102.00 MM
- THICKNESS IMPERIAL:
- 0,027'
- TYPE:
- TOP END
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- THICKNESS METRIC:
- 0.69 MM
$83.95 -
COMETIC Stator Gasket - Kawasaki EC1034032AFM
COMETIC
$16.95A quality stator gasket is critical to preventing oil weeping and maintaining a reliable seal under high heat and vibration. The COMETIC AFM stator gasket eliminates the frustration of gaskets that stick to engine cases during service, cutting your...09344367- SKU:
- 09344367
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- TYPE:
- STATOR COVER
$16.95 -
COMETIC Stator Gasket - Suzuki EC1120032AFM
COMETIC
$22.95If you're tired of gasket replacement turning into a half-day scraping job, the COMETIC Stator Gasket delivers a faster alternative without compromising seal integrity. The AFM material's non-adhesive compound means clean, tool-free removal every time—no...09344378- SKU:
- 09344378
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- RIDING STYLE:
- ATV
- THICKNESS METRIC:
- 0.81 MM
- UNITS:
- EACH
- MODEL:
- HI-PERFORMANCE
- THICKNESS IMPERIAL:
- 0,032'
- TYPE:
- STATOR COVER
- PRODUCT NAME:
- GASKET
- THICKNESS:
- 0,81 MM (0,032')
$22.95Qty in Cart: 0Quantity:Price:$22.95Subtotal: -
COMETIC Stator Gasket - Honda EC1223032AFM
COMETIC
$19.95Stator cover gasket failures lead to oil weeping, extended service intervals, and potential engine damage—problems that compound quickly in high-performance applications. The COMETIC Stator Gasket eliminates these issues with its AFM material...09344386- SKU:
- 09344386
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- ATV
- TYPE:
- STATOR COVER
- UNITS:
- EACH
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- PRODUCT NAME:
- GASKET
- THICKNESS:
- 0,81 MM (0,032')
- THICKNESS METRIC:
- 0.81 MM
- MODEL:
- HI-PERFORMANCE
- THICKNESS IMPERIAL:
- 0,032'
$19.95 -
COMETIC Clutch Gasket - Yamaha EC1559032AFM
COMETIC
$13.95A properly sealed clutch cover is critical to maintaining engine integrity and preventing oil seepage that can compromise clutch performance. The COMETIC Clutch Gasket uses AFM material—a chemically blown nitrile synthetic bonded to an aluminum core—to...09344396- SKU:
- 09344396
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- EACH
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- 0,032'
- RIDING STYLE:
- ATV
- TYPE:
- CLUTCH COVER
$13.95Qty in Cart: 0Quantity:Price:$13.95Subtotal: -
COMETIC Stator Gasket - Yamaha EC1561032AFM
COMETIC
$14.95Stator cover gaskets fail prematurely when they stick to the engine case, forcing tedious scraping and repeated replacements. The COMETIC AFM gasket eliminates this problem with a chemically bonded nitrile-rubber-to-aluminum construction that releases...09344397- SKU:
- 09344397
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET
- THICKNESS:
- 0,81 MM (0,032')
- THICKNESS IMPERIAL:
- 0,032'
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- RIDING STYLE:
- ATV
- THICKNESS METRIC:
- 0.81 MM
- TYPE:
- STATOR COVER
- UNITS:
- EACH
$14.95Qty in Cart: 0Quantity:Price:$14.95Subtotal: -
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 Clutch Gasket eliminates these issues with an AFM...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 aluminum-core design that won't bond to your case and...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 resists adhesion to your engine case, cutting service time...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
$23.95Qty in Cart: 0Quantity:Price:$23.95Subtotal: -
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 eliminates these problems with a chemically bonded AFM...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
$22.95 -
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 reliability. The COMETIC Clutch Gasket (EC344032AFM) eliminates...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
$18.95Qty in Cart: 0Quantity:Price:$18.95Subtotal: -
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 Gasket uses AFM material bonded to an aluminum core,...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
$18.95Qty in Cart: 0Quantity:Price:$18.95Subtotal: -
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 chemically blown nitrile synthetic rubber bonded to an...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 delivers the thermal stability and sealing integrity you...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
$4.95Qty in Cart: 0Quantity:Price:$4.95Subtotal: -
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 and premium materials to maintain a reliable seal...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 performance across extreme temperature ranges, keeping your...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 integrity and thermal stability you need for high-output...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 steel construction and proprietary Viton-rubber coating...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
$109.95Qty in Cart: 0Quantity:Price:$109.95Subtotal:
