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
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HOT RODS Cylinder Kit - Rear 30008-K01
HOT RODS
$690.95If your engine is showing signs of wear—reduced compression, increased blow-by, or sluggish performance—a quality big-bore cylinder kit is often the most cost-effective path to restoration or modest power gains. The HOT RODS Cylinder Kit eliminates the...09310508- SKU:
- 09310508
- Availability:
- Ships Same Business Day
- Weight:
- 4.75 LBS
- COMPRESSION RATIO IMPERIAL:
- 8.8:1
- UNITS:
- KIT
- DISPLACEMENT:
- 750 CC
- OVERBORE METRIC:
- STANDARD
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
- BORE SIZE METRIC:
- 85.00 MM
- FEATURES:
- REAR
- PRODUCT NAME:
- CYLINDER KIT
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- ATV
$690.95 -
HOT RODS Big Bore Cylinder Kit 61001-K01
HOT RODS
$1,351.95A big bore cylinder kit is essential when you're pushing your engine beyond stock limits—it directly increases displacement, allowing more fuel and air into each combustion cycle for measurable power gains. The HOT RODS 61001-K01 eliminates the typical...09310511- SKU:
- 09310511
- Availability:
- Ships Same Business Day
- Weight:
- 9.45 LBS
- DISPLACEMENT:
- 975 CC
- OVERBORE METRIC:
- +5.00 MM
- RIDING STYLE:
- UTV
- COMPRESSION RATIO IMPERIAL:
- 10.6:1
- FEATURES:
- MUST USE HEAVY DUTY CONNECTING RODS
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
- STYLE:
- BIG BORE
- BORE SIZE METRIC:
- 98.00 MM
- COLOR/FINISH:
- ALUMINUM
$1,351.95 -
HOT RODS Counter Balancer Bearing Kit - Suzuki BBK0017
HOT RODS
$73.95A counter balancer bearing failure can compromise your entire engine assembly and create catastrophic damage downstream. The HOT RODS Counter Balancer Bearing Kit BBK0017 delivers OEM-quality bearings specifically engineered for 4-stroke counter balancer...09500548- SKU:
- 09500548
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- BEARING KIT
- RIDING STYLE:
- ATV
- TYPE:
- COUNTERBALANCE SHAFT
- UNITS:
- KIT
$73.95 -
HOT RODS Counter Balancer Bearing Kit - Polaris BBK0019
HOT RODS
$105.95A counter balancer bearing kit is essential when rebuilding or servicing your 4-stroke engine—installing worn or damaged bearings compromises shaft alignment and accelerates wear on adjacent components. The HOT RODS BBK0019 delivers OEM-grade bearings...09500550- SKU:
- 09500550
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- ATV
- TYPE:
- COUNTERBALANCE SHAFT
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING KIT
$105.95 -
HOT RODS Counter Balancer Bearing Kit - Honda BBK0027
HOT RODS
$19.95When you're rebuilding a 4-stroke engine or installing a new counter balancer, using OEM-quality bearings isn't optional—it's essential. The HOT RODS Counter Balancer Bearing Kit delivers the precision and durability required to ensure smooth operation...09500907- SKU:
- 09500907
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
- TYPE:
- COUNTERBALANCE SHAFT
- UNITS:
- KIT
$19.95 -
HOT RODS Counter Balancer Bearing Kit - Polaris BBK0031
HOT RODS
$31.95A counter balancer bearing kit is essential when rebuilding or replacing your engine's counter balancer shaft, as OEM bearings degrade over time and contribute to vibration and premature wear. The HOT RODS BBK0031 delivers trusted, precision-engineered...09500910- SKU:
- 09500910
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
- TYPE:
- COUNTERBALANCE SHAFT
- UNITS:
- KIT
$31.95 -
HOT RODS Counter Balancer Bearing Kit - Polaris HR00011
HOT RODS
$52.95A counter balancer bearing kit is essential whenever you're rebuilding an engine case or installing a new counter balancer shaft. Using OEM-quality bearings here prevents premature wear, reduces vibration, and ensures your crankshaft assembly runs...09500911- SKU:
- 09500911
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
- TYPE:
- COUNTERBALANCE SHAFT
$52.95 -
HOT RODS Counter Balancer BBK0024
HOT RODS
$61.95A counter balancer bearing failure can cascade into catastrophic engine damage, making this rebuild kit essential for any serious 4-stroke build. HOT RODS BBK0024 supplies OEM-grade bearings engineered to eliminate vibration and extend engine longevity...09500868- SKU:
- 09500868
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- UTV
- TYPE:
- COUNTERBALANCE SHAFT
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING
$61.95 -
HOT RODS Connecting Rod 8109
HOT RODS
$151.95Whether you're building a high-RPM stroker or replacing worn factory rods, the HOT RODS 8109 Connecting Rod delivers the strength and reliability needed for sustained performance. Certified 8620 AISI steel and precision-engineered bearing surfaces ensure...422205- SKU:
- 422205
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- ENGINE TYPE:
- 2-CYCLE
- RIDING STYLE:
- ATV
- FEATURES:
- INCLUDES THRUST WASHERS
- PRODUCT NAME:
- CONNECTING ROD KIT
- UNITS:
- KIT
- MATERIAL:
- 8620 STEEL
$151.95Qty in Cart: 0Quantity:Price:$151.95Subtotal: -
HOT RODS Water Pump Repair Kit - Polaris WPK0055
HOT RODS
$79.95A leaking water pump compromises cooling system integrity and risks catastrophic engine damage. The HOT RODS Water Pump Repair Kit (WPK0055) restores OEM-level performance with precision micro bearings and high-pressure mechanical seals, eliminating the...09343430- SKU:
- 09343430
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
$79.95 -
HOT RODS Water Pump Repair Kit - Honda WPK0014
HOT RODS
$110.95A failing water pump doesn't just compromise cooling efficiency—it risks catastrophic engine damage if left unaddressed. The HOT RODS Water Pump Repair Kit (WPK0014) gives you a precision-engineered solution to restore your pump's integrity without a...09342926- SKU:
- 09342926
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- TYPE:
- WATER PUMP REPAIR
- UNITS:
- KIT
$110.95 -
HOT RODS Water Pump Repair Kit - Yamaha WPK0023
HOT RODS
$110.95A leaking water pump compromises cooling system integrity and risks catastrophic engine damage—this repair kit delivers OEM-quality bearings and seals to restore your pump's reliability without a full replacement. Whether you're managing bearing wear or...09342934- SKU:
- 09342934
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- TYPE:
- WATER PUMP REPAIR
- UNITS:
- KIT
$110.95 -
HOT RODS Seal Output Shaft OSK0001
HOT RODS
$37.95A leaking countershaft seal is a costly problem that compounds quickly—oil loss leads to bearing damage, and bearing damage leads to catastrophic transmission failure. The HOT RODS Seal Output Shaft kit eliminates guesswork by bundling everything...09350549- SKU:
- 09350549
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- UNITS:
- KIT
- APPLICATION:
- COUNTERSHAFT
- APPLICATION:
- TRANSMISSION
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- SEAL
$37.95 -
HOT RODS Seal Output Shaft OSK0027
HOT RODS
$17.95A leaking countershaft seal can compromise your transmission's integrity and lead to costly damage if left unaddressed. This complete HOT RODS seal kit eliminates guesswork by bundling everything needed for a proper repair in one purchase, saving you...09350551- SKU:
- 09350551
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- COUNTERSHAFT
- APPLICATION:
- TRANSMISSION
- UNITS:
- KIT
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- ATV
$17.95 -
HOT RODS Seal Output Shaft OSK0034
HOT RODS
$35.95A leaking countershaft seal doesn't just waste oil—it compromises engine reliability and can lead to catastrophic bearing failure if left unaddressed. The HOT RODS Seal Output Shaft kit gives you everything needed to stop the leak and restore proper...09350552- SKU:
- 09350552
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- KIT
- APPLICATION:
- COUNTERSHAFT
- APPLICATION:
- TRANSMISSION
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- ATV
$35.95 -
HOT RODS Connecting Rod 8648
HOT RODS
$278.95When you're pushing your engine to the limit, your connecting rods are working harder than almost any other component—transferring the explosive force of combustion directly to your crankshaft thousands of times per minute. The HOT RODS 8648 Connecting...09230196- SKU:
- 09230196
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- ENGINE TYPE:
- 4-CYCLE
- MATERIAL:
- 8620 STEEL
$278.95 -
HOT RODS Connecting Rod 8651
HOT RODS
$264.95If you're building or rebuilding an engine destined for high-RPM duty, your connecting rods are the unsung heroes translating combustion into reliable power. HOT RODS 8651 connecting rods combine certified 8620 AISI steel with precision manufacturing...09230197- SKU:
- 09230197
- Availability:
- Ships Same Business Day
- Weight:
- 2.56 LBS
- MATERIAL:
- 8620 STEEL
- ENGINE TYPE:
- 4-CYCLE
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$264.95 -
HOT RODS Crank Bearings K024
HOT RODS
$41.95A crankshaft is only as reliable as the bearings supporting it. The HOT RODS K024 crank bearing and seal kit ensures precise clearances and superior load distribution, protecting your investment during high-RPM operation and sustained boost. Whether...09240044- SKU:
- 09240044
- Availability:
- Ships Same Business Day
- Weight:
- 1.08 LBS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- UTV
- TYPE:
- BALL
- APPLICATION:
- MAIN CRANKSHAFT
$41.95 -
HOT RODS Crank Bearings K240
HOT RODS
$83.95A quality crankshaft assembly demands equally precise bearing and seal components to ensure reliable power delivery and longevity. The HOT RODS K240 Crank Bearings kit delivers the tight tolerances and material consistency required to support high-RPM...09240045- SKU:
- 09240045
- Availability:
- Ships Same Business Day
- Weight:
- 2.08 LBS
- RIDING STYLE:
- UTV
- TYPE:
- BALL
- UNITS:
- SET
- APPLICATION:
- MAIN CRANKSHAFT
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
$83.95Qty in Cart: 0Quantity:Price:$83.95Subtotal: -
HOT RODS Connecting Rod 8704
HOT RODS
$203.95When you're pushing your engine to the limit, stock connecting rods become your weakest link. The HOT RODS 8704 is engineered for sustained high-RPM abuse, combining certified 8620 AISI steel with precision manufacturing techniques that eliminate failure...09230470- SKU:
- 09230470
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- ENGINE TYPE:
- 4-CYCLE
- RIDING STYLE:
- UTV
- STYLE:
- HEAVY DUTY
- MATERIAL:
- 8620 STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- UNITS:
- KIT
$203.95
