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
-
Wiseco Piston Kit Yamaha YFS200 Blaster 1988-2006 66.50mm PK1091
WISECO
$230.95A complete piston kit rebuild is essential for restoring your YFS200 Blaster's compression, sealing, and reliability after high-mileage use or racing abuse. Wiseco's forged high-silicone construction delivers the thermal stability and durability needed...09030381- SKU:
- 09030381
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- SKIRT COATING:
- NON-COATED
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 66.50 MM
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE - OVERSIZE:
- +0,50 MM
- UNITS:
- KIT
- DISPLACEMENT:
- 195 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 66.45 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 57.00 MM
$230.95 -
Wiseco Piston Kit Standard Bore 93mm 10.6:1 Compression Polaris RZR XP 900 40045M09300
WISECO
$224.95The Wiseco Piston Kit is engineered for the RZR XP 900 to deliver consistent power and reliability under demanding conditions. Whether you're pushing hard on the track or exploring rough terrain, this precision-machined piston ensures optimal combustion...09102818- SKU:
- 09102818
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- BORE SIZE METRIC:
- 93.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH METRIC:
- 64.50 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- EACH
- RIDING STYLE:
- UTV
- DISPLACEMENT:
- 876 CC
$224.95 -
Wiseco Piston Kit Honda XR400R 1996-2004 85.50mm 10:1 Compression 4606M08550
WISECO
$210.95If you're running a Honda XR400R and want measurable gains in power delivery and reliability, a fresh piston kit is one of the most direct upgrades you can make. The Wiseco 4606M08550 delivers the compression ratio and durability you need to push your...09102830- SKU:
- 09102830
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- DISPLACEMENT:
- 397 CC
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 70.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE SIZE METRIC:
- 85.50 MM
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
$210.95 -
Wiseco Piston Kit Standard Bore 90mm 9.5:1 Compression Honda TRX450 Foreman 4825M09000
WISECO
$194.95The TRX450 Foreman demands a piston that can handle sustained high RPM operation and varying terrain demands. This Wiseco piston kit delivers OEM-level precision with a 9.5:1 compression ratio that extracts measurable gains in peak power and mid-range...09102833- SKU:
- 09102833
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- COMPRESSION RATIO IMPERIAL:
- 9.5:1
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH METRIC:
- 68.00 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 432 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE SIZE METRIC:
- 90.00 MM
$194.95 -
Wiseco Piston Kit for Honda TRX450 Foreman 1998-2004 4825M09150
WISECO
$221.32When your TRX450 Foreman's stock piston starts losing compression or showing wear, power delivery suffers and reliability becomes questionable. This Wiseco piston kit restores—and actually exceeds—factory performance specifications with precision...09102836- SKU:
- 09102836
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- BORE - OVERSIZE METRIC:
- +1.50 MM
- COMPRESSION RATIO IMPERIAL:
- 9.5:1
- STROKE LENGTH METRIC:
- 68.00 MM
- BORE - OVERSIZE:
- +1,50 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- BORE SIZE METRIC:
- 91.50 MM
- DISPLACEMENT:
- 432 CC
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$221.32 -
Wiseco Piston Kit 99mm 12.5:1 for 2004-2005 Honda TRX450R 4889M09900
WISECO
$309.95If you're running a TRX450R at the track or trail, your stock piston limits how much power your engine can safely produce. The Wiseco 99mm piston kit with 12.5:1 compression ratio unlocks measurable horsepower gains while maintaining the reliability your...09102839- SKU:
- 09102839
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- BORE - OVERSIZE METRIC:
- +4.00 MM
- DISPLACEMENT:
- 489 CC
- BORE - OVERSIZE:
- +4,00 MM
- BORE SIZE METRIC:
- 99.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 64.80 MM
$309.95Qty in Cart: 0Quantity:Price:$309.95Subtotal: -
Wiseco Cam Chain for Honda TRX400X 2012-2014 CC004
WISECO
$82.95The stock cam chain on your Honda TRX400X will eventually stretch and wear, compromising valve timing and engine efficiency. The Wiseco CC004 replaces it with a precision-engineered "M" style chain that maintains tight tolerances longer, preserving your...09250304- SKU:
- 09250304
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- CHAIN SIZE:
- 82RH2010
- PRODUCT NAME:
- CHAIN
- TYPE:
- CAM
- RIDING STYLE:
- OFF-ROAD
- NUMBER OF LINKS:
- 112
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$82.95 -
WISECO Cam Chain CC017
WISECO
$104.95A worn or inferior cam chain compromises valve timing precision, robbing your engine of power and reliability. The WISECO Cam Chain CC017 delivers OEM-exceeding durability through premium materials and Wiseco's in-house engineering, ensuring consistent...09250317- SKU:
- 09250317
- Availability:
- Ships Same Business Day
- Weight:
- 0.52 LBS
- CHAIN SIZE:
- 98XRH2010
- TYPE:
- CAM
- PRODUCT NAME:
- CHAIN
- RIDING STYLE:
- UTV
- NUMBER OF LINKS:
- 126
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$104.95Qty in Cart: 0Quantity:Price:$104.95Subtotal: -
Wiseco 94mm Piston Kit for 2004-2005 Honda TRX450R PK1066
WISECO
$354.95A top-end rebuild demands precision components that work in perfect harmony—and the Wiseco 94mm Piston Kit delivers exactly that. This complete forged piston assembly eliminates the guesswork of sourcing compatible parts individually, letting you focus...09030477- SKU:
- 09030477
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PRODUCT NAME:
- REBUILD KIT
- SKIRT COATING:
- ARMORGLIDE®
- BORE SIZE METRIC:
- 94.00 MM
- DISPLACEMENT:
- 450 CC
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 64.80 MM
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 93.92 MM
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- MODEL:
- FORGED SERIES
$354.95Qty in Cart: 0Quantity:Price:$354.95Subtotal: -
Wiseco Piston Kit Honda TRX300EX 1993-2008 2.00mm Oversize 11:1 Compression 4574M07600
WISECO
$209.95If you're pushing your TRX300EX to its limits, stock pistons won't cut it. The Wiseco 2.00mm oversize piston kit delivers measurable gains in compression ratio and power output while maintaining the durability needed for consistent high-RPM performance...09100378- SKU:
- 09100378
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- BORE SIZE METRIC:
- 76.00 MM
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH METRIC:
- 65.50 MM
- BORE - OVERSIZE:
- +2,00 MM
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE METRIC:
- +2.00 MM
- DISPLACEMENT:
- 297 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$209.95Qty in Cart: 0Quantity:Price:$209.95Subtotal: -
Wiseco Piston Kit 52.00mm Oversize for Kawasaki KFX80 2003-2006 673M05200
WISECO
$134.95If you're running a Kawasaki KFX80 and want to safely increase displacement and power output, a quality oversize piston kit is essential. The Wiseco 52.00mm piston delivers the precision engineering needed to maximize efficiency while maintaining...09100380- SKU:
- 09100380
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BORE - OVERSIZE METRIC:
- +2.00 MM
- DISPLACEMENT:
- 82 CC
- ENGINE TYPE:
- 2-STROKE
- BORE SIZE METRIC:
- 52.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 42.00 MM
- UNITS:
- EACH
- BORE - OVERSIZE:
- +2,00 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
$134.95 -
Wiseco Piston Kit 52.50mm Oversize for Polaris Sportsman 90 2001-2005 839M05250
WISECO
$119.95When you're boring out your Polaris Sportsman 90, you need pistons engineered to handle the increased displacement without sacrificing reliability. The Wiseco 839M05250 delivers forged-aluminum durability and precision fitment, giving you the confidence...09100382- SKU:
- 09100382
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 52.50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- DISPLACEMENT:
- STOCK
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- STROKE LENGTH METRIC:
- 41.90 MM
$119.95 -
Wiseco Piston Kit 53.50 mm for Polaris Sportsman 90 2001-2005 839M05350
WISECO
$128.12If you're running a Polaris Sportsman 90 and want measurable gains in horsepower and torque, a quality piston upgrade is one of the most direct paths to reliable performance. The Wiseco 839M05350 delivers the precision engineering and material quality...09100384- SKU:
- 09100384
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BORE - OVERSIZE:
- +1,50 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- +1.50 MM
- DISPLACEMENT:
- STOCK
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- ENGINE TYPE:
- 2-STROKE
- STROKE LENGTH METRIC:
- 41.90 MM
- BORE SIZE METRIC:
- 53.50 MM
$128.12 -
Wiseco Piston Kit 79mm 8.8:1 Compression for Honda TRX350 Rancher 2000-2006 4933M07900
WISECO
$189.95Stock pistons in your TRX350 Rancher are a limiting factor for reliability and power output, especially if you're pushing higher RPMs or running demanding conditions. The Wiseco 79mm piston kit delivers the strength and precision fit needed to safely...09100855- SKU:
- 09100855
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- BORE SIZE METRIC:
- 79.00 MM
- STROKE LENGTH METRIC:
- 68.00 MM
- BORE - OVERSIZE:
- +0,50 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE METRIC:
- +0.50 MM
- SKIRT COATING:
- MOLY COATED
- DISPLACEMENT:
- 333 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$189.95 -
Wiseco Yamaha YFM80 Badger 1985-2001 48mm Piston Kit PK1680
WISECO
$209.95If you're rebuilding the top-end on your YFM80 Badger, you need a piston kit engineered for the demands of 2-cycle performance. Wiseco's forged design handles extreme temperatures and combustion pressures without compromise, giving you the reliability to...09030662- SKU:
- 09030662
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE - OVERSIZE METRIC:
- +1.00 MM
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 45.60 MM
- UNITS:
- KIT
- DISPLACEMENT:
- 83 CC
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- FORGED SERIES
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- BORE - OVERSIZE:
- +1,00 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- PISTON DIAMETER METRIC:
- 47.97 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- BORE SIZE METRIC:
- 48.00 MM
- PRODUCT NAME:
- REBUILD KIT
$209.95Qty in Cart: 0Quantity:Price:$209.95Subtotal: -
Wiseco Piston Kit Honda TRX250R 1987-1989 562M06750
WISECO
$232.95The Wiseco Piston Kit is engineered to restore or upgrade your Honda TRX250R engine with precision-fit internals that handle both stock and modified power levels. Whether you're rebuilding after high-mileage wear or stepping up displacement, this kit...09101215- SKU:
- 09101215
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- BORE - OVERSIZE METRIC:
- +1.50 MM
- DISPLACEMENT:
- 246 CC
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE - OVERSIZE:
- +1,50 MM
- BORE SIZE METRIC:
- 67.50 MM
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$232.95Qty in Cart: 0Quantity:Price:$232.95Subtotal: -
Wiseco Suzuki LT-R450 2006-2011 Piston Kit 95.50mm 11.7:1 PK1423
WISECO
$349.95The Wiseco LT-R450 piston kit delivers the reliability and precision your Suzuki demands when you're pushing hard on the track or trail. High-silicone forged construction resists thermal stress and maintains consistent ring seal across the RPM band,...09030488- SKU:
- 09030488
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- DISPLACEMENT:
- 450 CC
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 95.50 MM
- BORE SIZE METRIC:
- 95.50 MM
- TYPE:
- TOP END
- BORE - OVERSIZE METRIC:
- STANDARD
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 11.7:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 62.80 MM
$349.95Qty in Cart: 0Quantity:Price:$349.95Subtotal: -
Wiseco Piston Kit Standard Bore 68.50mm Honda TRX250EX 2001-2008 4935M06850
WISECO
$205.95Stock pistons wear out—especially in high-performance or frequently-ridden TRX250EX builds. The Wiseco Piston Kit Standard Bore delivers OEM-quality fitment with precision engineering that restores compression and responsiveness, while the lightweight...09100856- SKU:
- 09100856
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- PISTON MATERIAL:
- FORGED
- BORE SIZE METRIC:
- 68.50 MM
- SKIRT COATING:
- MOLY COATED
- STROKE LENGTH METRIC:
- 62.20 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 229 CC
- PRODUCT NAME:
- PISTON
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$205.95 -
Wiseco Piston Kit 97.00mm 13:1 Compression for 2008-2014 Can-Am DS 450 40027M09700
WISECO
$274.95The Wiseco Piston Kit 97.00mm 13:1 Compression is purpose-built for the 2008-2014 Can-Am DS 450, delivering the high compression ratio and precision tolerances required for sustained performance in demanding riding conditions. Whether you're rebuilding...09102809- SKU:
- 09102809
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 97.00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.0:1
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON
- SKIRT COATING:
- ARMORGLIDE®
- STROKE LENGTH METRIC:
- 60.80 MM
- UNITS:
- EACH
- DISPLACEMENT:
- 449 CC
$274.95Qty in Cart: 0Quantity:Price:$274.95Subtotal: -
Wiseco Piston Kit 82.50mm for 2007-2013 Can-Am Outlander 500 40028M08250
WISECO
$189.95Stock pistons in your Can-Am Outlander 500 limit your engine's potential—excessive wear, power loss, and reliability issues follow. The Wiseco 82.50mm piston kit delivers the precision engineering and material quality needed to restore compression,...09102811- SKU:
- 09102811
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- BORE SIZE METRIC:
- 82.50 MM
- COMPRESSION RATIO IMPERIAL:
- STOCK
- DISPLACEMENT:
- 496 CC
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- EACH
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- PISTON MATERIAL:
- ALUMINUM
- STROKE LENGTH METRIC:
- 47.00 MM
$189.95Qty in Cart: 0Quantity:Price:$189.95Subtotal:
