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 Connecting Rod 8641
HOT RODS
$212.95When you're pushing your engine to the limit, your connecting rods are handling forces that demand uncompromising durability. The HOT RODS 8641 delivers heavy-duty reliability with certified 8620 AISI steel construction and precision engineering designed...09230062- SKU:
- 09230062
- Availability:
- Ships Same Business Day
- Weight:
- 1.78 LBS
- MATERIAL:
- 8620 STEEL
- STYLE:
- HEAVY DUTY
- ENGINE TYPE:
- 4-CYCLE
- FEATURES:
- INCLUDES THRUST WASHERS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$212.95 -
HOT RODS Connecting Rod 8715
HOT RODS
$331.95Whether you're building a stroker engine or refreshing a high-mileage block, connecting rods are the critical link between your crankshaft and piston—and they take enormous loads at extreme RPMs. The HOT RODS 8715 is engineered for durability and...09230517- SKU:
- 09230517
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- ENGINE TYPE:
- 4-CYCLE
- MATERIAL:
- 8620 STEEL
- RIDING STYLE:
- UTV
$331.95 -
HOT RODS Connecting Rod 8720
HOT RODS
$219.95When you're pushing your engine to the limit, your connecting rods need to handle extreme loads and sustained high-RPM operation without compromise. The HOT RODS 8720 is engineered specifically for heavy-duty applications where OE components fall short,...09230518- SKU:
- 09230518
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- RIDING STYLE:
- ATV
- MATERIAL:
- 8620 STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- UNITS:
- KIT
$219.95Qty in Cart: 0Quantity:Price:$219.95Subtotal: -
HOT RODS Connecting Rod 8719
HOT RODS
$331.95If you're building or rebuilding an engine that sees serious RPM, connecting rod failure isn't an option—it's catastrophic. The HOT RODS 8719 is engineered to handle extreme loads and sustained high-RPM operation with the material science and precision...09230519- SKU:
- 09230519
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MATERIAL:
- 8620 STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- ENGINE TYPE:
- 4-CYCLE
$331.95 -
HOT RODS Crank Bearings K078
HOT RODS
$116.95A crankshaft is only as reliable as its bearing package. The HOT RODS K078 main bearing and seal kit delivers precision tolerances and OEM-grade materials engineered to handle sustained high-RPM loads without premature wear or catastrophic failure...09240278- SKU:
- 09240278
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- TYPE:
- BALL
- UNITS:
- SET
- APPLICATION:
- MAIN CRANKSHAFT
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
$116.95 -
HOT RODS Crank Bearings K079
HOT RODS
$98.95A crankshaft is only as reliable as its bearings. The HOT RODS K079 crank bearing kit delivers the precision tolerances and material quality required to support high-RPM loads without flex or wear, ensuring your crankshaft assembly delivers consistent...09240279- SKU:
- 09240279
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
- APPLICATION:
- MAIN CRANKSHAFT
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- BEARING
- TYPE:
- BALL
- UNITS:
- SET
$98.95Qty in Cart: 0Quantity:Price:$98.95Subtotal: -
HOT RODS Crank Bearings K075
HOT RODS
$122.95Proper crank bearing installation is foundational to engine reliability and longevity. Using OEM-quality bearing kits ensures correct tolerances, reduces friction losses, and protects your crankshaft investment during high-RPM operation. The HOT RODS...09240280- SKU:
- 09240280
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- UTV
- TYPE:
- BALL
- APPLICATION:
- MAIN CRANKSHAFT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$122.95 -
HOT RODS Crank Bearings K087
HOT RODS
$184.95A crankshaft is only as reliable as its bearing surfaces. The HOT RODS K087 Crank Bearings deliver precision-engineered main bearing and seal kits that eliminate play, reduce friction, and ensure consistent oil pressure throughout your engine's operating...09240393- SKU:
- 09240393
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- BEARING
- TYPE:
- BALL
- APPLICATION:
- MAIN CRANKSHAFT
- UNITS:
- KIT
- RIDING STYLE:
- UTV
$184.95 -
HOT RODS Crankshaft Kit CBK0166
HOT RODS
$927.95If you're building a high-performance engine or restoring a classic, the HOT RODS Crankshaft Kit CBK0166 delivers factory-matched precision without compromise. This complete assembly arrives ready for installation, eliminating the guesswork and saving...09210424- SKU:
- 09210424
- Availability:
- Ships Same Business Day
- Weight:
- 13.35 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- ATV
- TYPE:
- STROKER
$927.95 -
HOT RODS Crankshaft Kit CBK0115
HOT RODS
$874.95If you're building a high-performance engine or need to replace a worn crankshaft, the HOT RODS CBK0115 Crankshaft Kit delivers factory-spec reliability without compromise. This complete assembly arrives ready for installation, pairing a...09210425- SKU:
- 09210425
- Availability:
- Ships Same Business Day
- Weight:
- 22.45 LBS
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- ATV
- TYPE:
- OEM
- UNITS:
- KIT
$874.95 -
HOT RODS Crankshaft Kit CBK0123
HOT RODS
$1,192.95Whether you're building a high-displacement stroker engine or replacing a worn crankshaft, the HOT RODS Crankshaft Kit CBK0123 delivers factory-matched precision with the durability demanded by serious racers and engine builders. This complete assembly...09210426- SKU:
- 09210426
- Availability:
- Ships Same Business Day
- Weight:
- 24.91 LBS
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- TYPE:
- OEM
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- ATV
$1,192.95 -
HOT RODS Crankshaft Kit CBK0151
HOT RODS
$980.95If you're building a high-performance engine that demands reliability under extreme conditions, the HOT RODS Crankshaft Kit CBK0151 delivers factory-matched precision with the durability to exceed OEM specifications. This complete assembly arrives ready...09210427- SKU:
- 09210427
- Availability:
- Ships Same Business Day
- Weight:
- 21.05 LBS
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- STROKER
$980.95 -
HOT RODS Crankshaft 4091
HOT RODS
$937.95If you're building a long-stroke engine for your ATV, you need a crankshaft engineered to handle increased displacement without compromise. The HOT RODS Crankshaft 4091 arrives factory-assembled, trued to OEM specifications, and ready to...09210153- SKU:
- 09210153
- Availability:
- Ships Same Business Day
- Weight:
- 21.47 LBS
- MODEL:
- 4-CYCLE
- DISPLACEMENT:
- 800 CC
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- RIDING STYLE:
- ATV
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- RIDING STYLE:
- UTV
- STROKE LENGTH METRIC:
- 75.60 MM
- TYPE:
- OEM STROKE
- COLOR/FINISH:
- STEEL
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
$937.95 -
HOT RODS Crankshaft Assembly 4060
HOT RODS
$502.95If you're building a long-stroke engine for your ATV, the HOT RODS Crankshaft Assembly 4060 eliminates the guesswork and machine work typically required for displacement upgrades. This factory-assembled, trued crankshaft arrives complete with proven HOT...09210029- SKU:
- 09210029
- Availability:
- Ships Same Business Day
- Weight:
- 10.61 LBS
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 64.80 MM
- DISPLACEMENT:
- 450 CC
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- MODEL:
- 4-CYCLE
- TYPE:
- OEM STROKE
$502.95Qty in Cart: 0Quantity:Price:$502.95Subtotal: -
HOT RODS Crankshaft Assembly - Stroker 4105
HOT RODS
$439.95If you're serious about maximizing displacement and low-end torque on your ATV, a stroker crankshaft is one of the most effective upgrades available. The HOT RODS Stroker 4105 gives you a complete, factory-assembled assembly that's ready to bolt in—no...09210010- SKU:
- 09210010
- Availability:
- Ships Same Business Day
- Weight:
- 6.70 LBS
- COLOR/FINISH:
- STEEL
- DISPLACEMENT:
- 209 CC
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- STROKE LENGTH:
- 61,00 MM
- STROKE LENGTH METRIC:
- 61.00 MM
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- FEATURES:
- STANDARD CRANKSHAFT
- MODEL:
- 2-CYCLE
- TYPE:
- STROKER
$439.95Qty in Cart: 0Quantity:Price:$439.95Subtotal: -
HOT RODS Crankshaft Assembly 4040
HOT RODS
$556.95If you're serious about maximizing displacement and power in your sport ATV, a long-stroke crankshaft assembly is one of the most direct paths to measurable gains in torque and horsepower. The HOT RODS Crankshaft Assembly 4040 arrives factory-assembled,...09210018- SKU:
- 09210018
- Availability:
- Ships Same Business Day
- Weight:
- 11.00 LBS
- MODEL:
- 4-CYCLE
- TYPE:
- OEM STROKE
- DISPLACEMENT:
- 400 CC
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 70.00 MM
$556.95 -
HOT RODS Crankshaft 4076
HOT RODS
$622.95If you're building a high-performance long-stroke engine for your ATV, the HOT RODS Crankshaft 4076 delivers the durability and precision you need without the machine work and custom fabrication typically required for these builds. Factory-assembled and...09210119- SKU:
- 09210119
- Availability:
- Ships Same Business Day
- Weight:
- 9.92 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 62.80 MM
- COLOR/FINISH:
- STEEL
- FEATURES:
- STANDARD CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- MODEL:
- 4-CYCLE
- UNITS:
- ASSEMBLY
- DISPLACEMENT:
- 450 CC
- TYPE:
- OEM STROKE
$622.95 -
COMETIC Gasket Set - 103 mm - Yamaha C3142-EST
COMETIC
$108.95A quality gasket set is foundational to engine reliability and performance—especially when you're building or rebuilding a high-output 4-stroke. The COMETIC C3142-EST Gasket Set delivers the sealing integrity and thermal management required to handle...09340883- SKU:
- 09340883
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- BORE SIZE METRIC:
- 103.00 MM
- TYPE:
- TOP END
$108.95 -
COMETIC Gasket Set - 105.5 mm - Yamaha C3144-EST
COMETIC
$108.95Top-end gasket failure can cost you races and engine rebuilds. The COMETIC C3144-EST uses multi-layered steel construction with Viton rubber coating to handle today's high-compression, turbocharged engines while maintaining reliable seals across multiple...09340885- SKU:
- 09340885
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- TYPE:
- TOP END
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- BORE SIZE METRIC:
- 105.50 MM
- PRODUCT NAME:
- GASKET KIT
$108.95 -
COMETIC Gasket Set - 68 mm - Yamaha C7093-EST
COMETIC
$50.95A quality gasket set is the foundation of engine reliability—especially when you're running high boost pressures or pushing naturally aspirated power limits. The COMETIC C7093-EST delivers the seal integrity your Yamaha engine demands, with multi-layered...09340888- SKU:
- 09340888
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 68.00 MM
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
$50.95
