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
-
HOT RODS Crankshaft Kit CBK0186
HOT RODS
$502.95If you're building a high-performance or stroker engine, a quality crankshaft assembly is non-negotiable—it's the backbone of reliable power delivery under extreme conditions. The HOT RODS Crankshaft...09210497- SKU:
- 09210497
- Availability:
- Ships Same Business Day
- Weight:
- 11.50 LBS
- TYPE:
- OEM
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- ATV
$502.95 -
HOT RODS Crankshaft Kit 4406
HOT RODS
$502.95If you're building a high-performance long-stroke engine for your ATV, a quality crankshaft assembly is non-negotiable—it's the foundation that handles increased displacement and stress without...09210499- SKU:
- 09210499
- Availability:
- Ships Same Business Day
- Weight:
- 9.35 LBS
- RIDING STYLE:
- ATV
- COLOR/FINISH:
- STEEL
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- DISPLACEMENT:
- 450 CC
- FEATURES:
- STANDARD CRANKSHAFT
- MODEL:
- 4-CYCLE
- STROKE LENGTH METRIC:
- 63.40 MM
- TYPE:
- OEM STROKE
$502.95 -
HOT RODS Crankshaft Kit 4409
HOT RODS
$569.95If you're running a long-stroke build on your ATV, a quality crankshaft assembly is non-negotiable—it's the foundation that determines reliability under load and sustained RPM. The HOT RODS 4409...09210500- SKU:
- 09210500
- Availability:
- Ships Same Business Day
- Weight:
- 10.70 LBS
- COLOR/FINISH:
- STEEL
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- MODEL:
- 4-CYCLE
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 68.00 MM
- DISPLACEMENT:
- 350 CC
- FEATURES:
- STANDARD CRANKSHAFT
- TYPE:
- OEM STROKE
$569.95 -
HOT RODS Crankshaft Kit 4410
HOT RODS
$689.95A long-stroke crankshaft delivers measurable gains in low-end torque and overall engine efficiency—critical advantages whether you're chasing lap times or maximizing trail performance. The HOT RODS...09210501- SKU:
- 09210501
- Availability:
- Ships Same Business Day
- Weight:
- 12.30 LBS
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- ATV
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- STROKE LENGTH METRIC:
- 71.50 MM
- DISPLACEMENT:
- 500 CC
- FEATURES:
- STANDARD CRANKSHAFT
- MODEL:
- 4-CYCLE
- TYPE:
- OEM STROKE
$689.95 -
HOT RODS Crankshaft Kit 4411
HOT RODS
$379.00If you're running a high-displacement build on your ATV or looking to maximize bottom-end reliability under boost, a quality crankshaft assembly is non-negotiable. The HOT RODS Crankshaft Kit 4411...09210502- SKU:
- 09210502
- Availability:
- Ships Same Business Day
- Weight:
- 8.85 LBS
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 62.20 MM
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- FEATURES:
- STANDARD CRANKSHAFT
- MODEL:
- 4-CYCLE
- TYPE:
- OEM STROKE
$379.00 -
HOT RODS Crankshaft Kit CBK0192
HOT RODS
$835.75If you're building or rebuilding an engine that demands reliability and performance beyond stock specifications, the HOT RODS Crankshaft Kit CBK0192 delivers the durability of a professional-grade...09210522- SKU:
- 09210522
- Availability:
- Ships Same Business Day
- Weight:
- 14.50 LBS
- TYPE:
- OEM
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
- UNITS:
- KIT
$835.75 -
HOT RODS Crankshaft Kit CBK0193
HOT RODS
$1,258.95If you're building a high-performance engine or restoring a classic, a quality crankshaft is non-negotiable—it's the foundation that determines reliability under extreme loads and RPM. The HOT RODS...09210523- SKU:
- 09210523
- Availability:
- Ships Same Business Day
- Weight:
- 19.75 LBS
- TYPE:
- OEM
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
$1,258.95 -
HOT RODS Crankshaft Kit CBK0121
HOT RODS
$752.80A high-performance crankshaft assembly is the backbone of engine durability under extreme operating conditions. The HOT RODS Crankshaft Kit CBK0121 delivers OEM-spec precision with factory-assembled...09210411- SKU:
- 09210411
- Availability:
- Ships Same Business Day
- Weight:
- 13.00 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- ATV
- TYPE:
- OEM
- UNITS:
- KIT
$752.80 -
HOT RODS Water Pump Repair Kit - Suzuki WPK0053
HOT RODS
$78.95A leaking or noisy water pump compromises engine cooling efficiency and can lead to catastrophic overheating. This HOT RODS repair kit restores your Suzuki's cooling system to OEM performance...09342959- SKU:
- 09342959
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- TYPE:
- WATER PUMP REPAIR
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$78.95Qty in Cart: 0Quantity:Price:$78.95Subtotal: -
HOT RODS Crankshaft Kit 4421
HOT RODS
$1,292.95If you're building a high-performance long-stroke engine for your ATV, the HOT RODS Crankshaft Kit 4421 eliminates the guesswork and machine work typically required for these demanding builds. This...09210539- SKU:
- 09210539
- Availability:
- Ships Same Business Day
- Weight:
- 20.60 LBS
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- COLOR/FINISH:
- STEEL
- FEATURES:
- STANDARD CRANKSHAFT
- TYPE:
- OEM STROKE
- DISPLACEMENT:
- 900 CC
- MODEL:
- 4-CYCLE
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 64.40 MM
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
$1,292.95 -
HOT RODS Seal Output Shaft OSK0014
HOT RODS
$29.95A leaking countershaft seal will compromise your transmission's integrity and lead to costly damage if left unaddressed. This complete HOT RODS kit eliminates guesswork by bundling everything needed...09350550- SKU:
- 09350550
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- UNITS:
- KIT
- APPLICATION:
- COUNTERSHAFT
- APPLICATION:
- TRANSMISSION
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- ATV
$29.95 -
Bikeman Performance Mo Flow Water Pump Impeller for Polaris RZR 900 2011-2020 10-307
BIKEMAN PERFORMANCE
$195.25Stock water pump impellers weren't engineered for sustained high-performance driving—they lose efficiency under load and struggle to maintain consistent coolant flow when you need it most. The...09320260- SKU:
- 09320260
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- IMPELLER
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- BLACK
- TYPE:
- WATER PUMP
- UNITS:
- EACH
$195.25 -
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...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
$82.95 -
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...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...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
$83.95Qty in Cart: 0Quantity:Price:$83.95Subtotal: -
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...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...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')
$22.95 -
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...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...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
$13.95 -
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...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
$14.95
