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 Cams Camshaft Stage 2 Honda TRX700XX 2008-2009 1135-2
HOT CAMS
$289.95If you're serious about extracting maximum performance from your TRX700XX, a quality camshaft swap is one of the highest-impact upgrades available. The HOT CAMS Stage 2 delivers measurable gains in...09250500- SKU:
- 09250500
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- EXHAUST DURATION IMPERIAL:
- 244°
- INTAKE DURATION IMPERIAL:
- 244°
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- STAGE 2
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- EXHAUST LIFT METRIC:
- 9.14 MM
- INTAKE LIFT METRIC:
- 9.02 MM
- RIDING STYLE:
- ATV
$289.95Qty in Cart: 0Quantity:Price:$289.95Subtotal: -
Hot Cams Stage 1 Intake Camshaft for 2006-2007 Polaris Outlaw 500 and 2003-2007 Predator 500 5045-1IN
HOT CAMS
$362.95If you're running a 2006-2007 Polaris Outlaw 500 or 2003-2007 Predator 500, factory cam timing limits your engine's potential across the entire RPM band. The Hot Cams Stage 1 Intake Camshaft is...09250150- SKU:
- 09250150
- Availability:
- Ships Same Business Day
- Weight:
- 1.62 LBS
- APPLICATION:
- INTAKE
- INTAKE LIFT METRIC:
- 10.70 MM
- UNITS:
- EACH
- PRODUCT NAME:
- CAMSHAFT
- RIDING STYLE:
- ATV
- INTAKE DURATION IMPERIAL:
- 241°
$362.95Qty in Cart: 0Quantity:Price:$362.95Subtotal: -
HOT RODS Connecting Rod 8160
HOT RODS
$135.95When you're pushing an engine to its limits, your connecting rods are the critical link between power and catastrophic failure. The HOT RODS 8160 is engineered for sustained high-RPM performance with...09230285- SKU:
- 09230285
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MATERIAL:
- 8620 STEEL
- ENGINE TYPE:
- 2-CYCLE
- FEATURES:
- INCLUDES THRUST WASHERS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$135.95Qty in Cart: 0Quantity:Price:$135.95Subtotal: -
HOT RODS Crankshaft 4432
HOT RODS
$322.95A quality crankshaft is the backbone of any high-performance engine build, and the HOT RODS 4432 delivers the reliability and precision you need for sustained power delivery. Factory-assembled and...09210604- SKU:
- 09210604
- Availability:
- Ships Same Business Day
- Weight:
- 16.30 LBS
- DISPLACEMENT:
- 550 CC
- RIDING STYLE:
- UTV
- STROKE LENGTH METRIC:
- 82.00 MM
- COLOR/FINISH:
- STEEL
- MATERIAL:
- 4140 STEEL
- TYPE:
- OEM STROKE
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- UNITS:
- ASSEMBLY
- FEATURES:
- STANDARD CRANKSHAFT
- MODEL:
- 4-CYCLE
- RIDING STYLE:
- ATV
$322.95Qty in Cart: 0Quantity:Price:$322.95Subtotal: -
VERTEX Piston Kit VTKTC23532A
VERTEX
$375.95Precision-engineered pistons are the foundation of reliable high-RPM performance, and VERTEX delivers the durability your engine demands. This kit combines advanced metallurgy with proven surface...09103852- SKU:
- 09103852
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
$375.95Qty in Cart: 0Quantity:Price:$375.95Subtotal: -
VERTEX Piston Kit VTKTC23522C
VERTEX
$345.95The VERTEX Piston Kit VTKTC23522C delivers the precision engineering and durability demanded by serious racers and high-performance builds. Purpose-built with advanced metallurgy and...09103851- SKU:
- 09103851
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- STYLE:
- CAST REPLICA
- PISTON DIAMETER METRIC:
- 95.97 MM
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- DISPLACEMENT:
- 450 CC
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- TOP END PISTON KIT
$345.95Qty in Cart: 0Quantity:Price:$345.95Subtotal: -
VERTEX Piston Kit VTKTC22984B-1
VERTEX
$328.95The VERTEX Piston Kit VTKTC22984B-1 delivers the durability and precision your engine demands during high-stress operation. Purpose-built with advanced heat treatment and low-friction coatings, these...09103844- SKU:
- 09103844
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
$328.95Qty in Cart: 0Quantity:Price:$328.95Subtotal: -
On Sale
ATHENA Piston Kit S4F09800004B
ATHENA
MSRP: $311.95Now: $281.00Was: $311.95A quality piston kit is the foundation of reliable engine performance, directly impacting compression, seal integrity, and longevity under sustained load. The ATHENA Piston Kit S4F09800004B delivers...09102505- SKU:
- 09102505
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- STYLE:
- BIG BORE
- PISTON DIAMETER METRIC:
- 97.95 MM
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- PISTON SIZE METRIC:
- STANDARD SIZE B
- RIDING STYLE:
- ATV
MSRP: $311.95Now: $281.00Was: $311.95Qty in Cart: 0Quantity:Price:MSRP: $311.95Now: $281.00Was: $311.95Subtotal: -
On Sale
ATHENA Piston Kit S4F09800004A
ATHENA
MSRP: $311.95Now: $281.00Was: $311.95A piston kit is the heart of your engine's combustion cycle—precision-engineered components that directly impact compression, power delivery, and reliability. The ATHENA S4F09800004A delivers...09102504- SKU:
- 09102504
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- STYLE:
- BIG BORE
- PISTON DIAMETER METRIC:
- 97.94 MM
- PISTON SIZE METRIC:
- STANDARD SIZE A
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- UNITS:
- EACH
MSRP: $311.95Now: $281.00Was: $311.95Qty in Cart: 0Quantity:Price:MSRP: $311.95Now: $281.00Was: $311.95Subtotal: -
VERTEX Piston Kit 23623B
VERTEX
$256.95Engine durability and performance start at the piston. The VERTEX Piston Kit 23623B delivers the strength and precision you need for consistent power delivery, whether you're rebuilding a tired...09102108- SKU:
- 09102108
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- DISPLACEMENT:
- 700 CC
- STYLE:
- CAST REPLICA
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 9.2:1
- CYLINDER DIAMETER METRIC:
- 102.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 101.96 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
$256.95Qty in Cart: 0Quantity:Price:$256.95Subtotal: -
VERTEX Piston Kit 23555A
VERTEX
$247.95The VERTEX Piston Kit 23555A delivers the durability and precision needed for sustained high-RPM performance without compromising reliability. Whether you're chasing lap times or building a long-term...09102104- SKU:
- 09102104
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- UTV
- CYLINDER DIAMETER METRIC:
- 100.00 MM
- DISPLACEMENT:
- 660 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 99.95 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
$247.95Qty in Cart: 0Quantity:Price:$247.95Subtotal: -
Wiseco 74mm 11.5:1 Piston Kit Kawasaki KSF250 Mojave 1989-2003 PK1746
WISECO
$234.95If you're rebuilding or overboring your KSF250 Mojave's top end, you need a piston kit engineered to handle sustained high RPM and aggressive riding conditions. Wiseco's forged construction delivers...09031276- SKU:
- 09031276
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.5:1
- DISPLACEMENT:
- 249 CC
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 74.00 MM
- BORE - OVERSIZE:
- STANDARD
- RIDING STYLE:
- ATV
- STROKE LENGTH IMPERIAL:
- 2-1/4'
- UNITS:
- KIT
$234.95 -
Wiseco Piston Kit 93mm Bore 10.2:1 Compression Polaris Sportsman 500 1996-2000 PK1654
WISECO
$289.95If you're rebuilding your Polaris Sportsman 500, piston quality directly determines how your engine handles sustained RPMs, heat cycles, and load stress. Wiseco's high-silicone forged construction...09031275- SKU:
- 09031275
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- BORE - OVERSIZE:
- +1,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- DISPLACEMENT:
- 499 CC
- RIDING STYLE:
- UTV
- BORE SIZE METRIC:
- 93.00 MM
- COMPRESSION RATIO IMPERIAL:
- 10.2:1
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 92.95 MM
- SKIRT COATING:
- NON-COATED
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 75.00 MM
- TYPE:
- TOP END
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$289.95Qty in Cart: 0Quantity:Price:$289.95Subtotal: -
Wiseco Piston Kit with Gaskets for Polaris Sportsman 500 1996-2002 PK1653
WISECO
$301.95When your Polaris Sportsman 500's engine is pushing its limits, stock pistons won't cut it. The Wiseco PK1653 kit delivers the strength and thermal stability your 2-cycle engine needs to handle...09030919- SKU:
- 09030919
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- BORE SIZE METRIC:
- 92.50 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- COMPRESSION RATIO IMPERIAL:
- 10.2:1
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 75.00 MM
- BORE - OVERSIZE:
- +0,50 MM
- DISPLACEMENT:
- 499 CC
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +0.50 MM
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 92.45 MM
- SKIRT COATING:
- NON-COATED
$301.95Qty in Cart: 0Quantity:Price:$301.95Subtotal: -
Wiseco Yamaha YFM660F Grizzly 2002-2008 YXR660F Rhino 2005-2007 Piston Kit PK1436
WISECO
$349.95If you're rebuilding your Yamaha Grizzly or Rhino's top end, settling for OEM components means accepting factory performance limits. Wiseco's PK1436 piston kit delivers the strength and precision...09030626- SKU:
- 09030626
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 84.00 MM
- TYPE:
- TOP END
- BORE - OVERSIZE METRIC:
- +0.50 MM
- PISTON DIAMETER METRIC:
- 100.42 MM
- PRODUCT NAME:
- REBUILD KIT
- BORE - OVERSIZE:
- +0,50 MM
- BORE SIZE METRIC:
- 100.50 MM
- COMPRESSION RATIO IMPERIAL:
- 9.9:1
- DISPLACEMENT:
- 660 CC
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- MODEL:
- FORGED SERIES
- RIDING STYLE:
- UTV
$349.95Qty in Cart: 0Quantity:Price:$349.95Subtotal: -
Wiseco Piston Kit with Gasket Yamaha Raptor 660R 2001-2005 PK1431
WISECO
$334.95A top-end rebuild demands precision components engineered to withstand sustained high RPM operation and thermal stress. The Wiseco Piston Kit delivers the complete solution for restoring your Raptor...09030621- SKU:
- 09030621
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 9.9:1
- PRODUCT NAME:
- REBUILD KIT
- SKIRT COATING:
- ARMORGLIDE®
- BORE SIZE METRIC:
- 100.00 MM
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 99.92 MM
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 84.00 MM
- TYPE:
- TOP END
- DISPLACEMENT:
- 660 CC
- UNITS:
- KIT
$334.95Qty in Cart: 0Quantity:Price:$334.95Subtotal: -
HOT RODS Bearing Connecting Rod RBPL-005G
HOT RODS
$53.95A connecting rod is the critical link between your piston and crankshaft—and a weak one compromises power delivery, reliability, and engine longevity. The HOT RODS Bearing Connecting Rod RBPL-005G...09230359- SKU:
- 09230359
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- ROD
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
- UNITS:
- SET
- STYLE:
- STANDARD
- THICKNESS METRIC:
- 1.506 MM - 1.509 MM
$53.95 -
HOT RODS Bearing Connecting Rod RBPL-005W
HOT RODS
$35.95A connecting rod is the critical link between your piston and crankshaft—failure here means catastrophic engine damage. The HOT RODS Bearing Connecting Rod RBPL-005W delivers OE or better quality...09230360- SKU:
- 09230360
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
- THICKNESS METRIC:
- 1.500 MM - 1.503 MM
- TYPE:
- ROD
- STYLE:
- UNDERSIZE
- UNITS:
- SET
$35.95 -
On Sale
COMETIC Top End Gasket Set - Kawasaki C3284-EST
COMETIC
MSRP: $151.95Now: $136.76Was: $151.95A quality gasket set is foundational to engine reliability and performance—especially when running high compression or forced induction. The COMETIC C3284-EST uses multi-layered steel construction...09344135- SKU:
- 09344135
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- UNITS:
- KIT
- BORE SIZE METRIC:
- 85.00 MM
- PRODUCT NAME:
- GASKET KIT
MSRP: $151.95Now: $136.76Was: $151.95Qty in Cart: 0Quantity:Price:MSRP: $151.95Now: $136.76Was: $151.95Subtotal: -
Hot Cams Cam Chain for Kawasaki KFX 700 V-Force 2004-2009 HC92RH2015046
HOT CAMS
$29.95A worn or undersized cam chain compromises valve timing accuracy and can lead to catastrophic engine failure—especially in high-revving performance builds. The HOT CAMS HC92RH2015046 is engineered to...09251170- SKU:
- 09251170
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- MATERIAL:
- STEEL
- BASE FINISH:
- RAW
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 92RH2015
- PRODUCT NAME:
- CHAIN
- RIDING STYLE:
- UTV
- MODEL:
- SILENT
- TYPE:
- CAM
$29.95
