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 Water Pump Repair Kit - Yamaha WPK0027
HOT RODS
$27.95A failing water pump doesn't just reduce cooling efficiency—it can cause catastrophic engine damage if left unchecked. This HOT RODS repair kit supplies all the critical internal components needed to...09342938- SKU:
- 09342938
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- WATER PUMP REPAIR
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
$27.95 -
COMETIC Top End Gasket Kit - 106 mm - Suzuki C3128-EST
COMETIC
$51.95A quality top-end gasket kit is non-negotiable when you're rebuilding your engine—factory gaskets simply can't handle the pressures and temperatures of modern performance applications. The COMETIC...09340880- SKU:
- 09340880
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 106.00 MM
- UNITS:
- KIT
$51.95Qty in Cart: 0Quantity:Price:$51.95Subtotal: -
COMETIC Top End Gasket Set - Suzuki C3208-EST
COMETIC
$68.95A failing top end gasket kit compromises compression, invites coolant leaks, and tanks your power output—especially in high-boost or naturally aspirated builds running peak cylinder pressures. The...09344107- SKU:
- 09344107
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- UNITS:
- KIT
- BORE SIZE METRIC:
- 96.00 MM
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
$68.95 -
COMETIC Clutch Gasket - Suzuki EC1119018AFM
COMETIC
$15.95A worn or failing clutch cover gasket leads to oil seepage, reduced engine efficiency, and costly downtime. The COMETIC Clutch Gasket (EC1119018AFM) eliminates these issues with a chemically bonded...09344377- SKU:
- 09344377
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- ATV
- TYPE:
- CLUTCH COVER
- UNITS:
- EACH
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- 0,018'
- MODEL:
- HI-PERFORMANCE
$15.95Qty in Cart: 0Quantity:Price:$15.95Subtotal: -
COMETIC Top End Gasket Set - Suzuki C7826
COMETIC
$45.95A quality top-end gasket set is fundamental to preventing coolant and oil leaks that compromise engine reliability and performance. The COMETIC C7826 uses multi-layered steel construction with Viton...C7826- SKU:
- C7826
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 89.00 MM
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$45.95Qty in Cart: 0Quantity:Price:$45.95Subtotal: -
Hot Cams Cam Chain for Honda TRX250X 2009-2020 and Kawasaki KLF250 Bayou 2003-2010 HC82RH2010106
HOT CAMS
$59.95A worn or failing cam chain can trigger catastrophic engine damage, making regular maintenance and timely replacement critical for any serious rider. The HOT CAMS HC82RH2010106 delivers OEM-exceeding...09250992- SKU:
- 09250992
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MODEL:
- SILENT
- TYPE:
- CAM
- PRODUCT NAME:
- CHAIN
- BASE FINISH:
- RAW
- CHAIN SIZE:
- 82RH2010
- COLOR/FINISH:
- RAW
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
$59.95Qty in Cart: 0Quantity:Price:$59.95Subtotal: -
Hot Cams Cam Chain for Yamaha YFM450 Grizzly 2007-2014 HC92RH2010116
HOT CAMS
$37.95Cam chain wear is one of the most common failure points in high-mileage YFM450 Grizzlies, leading to timing issues and catastrophic engine damage if left unchecked. The HOT CAMS HC92RH2010116...09250997- SKU:
- 09250997
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- BASE FINISH:
- RAW
- MATERIAL:
- STEEL
- MODEL:
- SILENT
- RIDING STYLE:
- UTV
- TYPE:
- CAM
- CHAIN SIZE:
- 92RH2010
- RIDING STYLE:
- ATV
- COLOR/FINISH:
- RAW
- PRODUCT NAME:
- CHAIN
- UNITS:
- EACH
$37.95Qty in Cart: 0Quantity:Price:$37.95Subtotal: -
Hot Cams Cam Chain for Honda TRX450FE FourTrax Foreman ES 1998-2004 HC92RH2015056
HOT CAMS
$62.95Your Honda TRX450FE's cam chain is critical to engine timing precision—wear or slack directly impacts performance, reliability, and longevity. The HOT CAMS HC92RH2015056 replaces factory chains with...09250998- SKU:
- 09250998
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- CHAIN SIZE:
- 92RH2015
- MODEL:
- SILENT
- PRODUCT NAME:
- CHAIN
- BASE FINISH:
- RAW
- TYPE:
- CAM
- COLOR/FINISH:
- RAW
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$62.95 -
Hot Cams Camshaft for Yamaha YFM700R Raptor 2006-2008 4064-1
HOT CAMS
$289.95The stock camshaft in your YFM700R limits what your engine can deliver—especially if you're serious about racing or trail performance. The HOT CAMS 4064-1 unlocks real gains in torque and horsepower...09250126- SKU:
- 09250126
- Availability:
- Ships Same Business Day
- Weight:
- 1.66 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 243°
- INTAKE LIFT METRIC:
- 9.60 MM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- EXHAUST LIFT METRIC:
- 8.60 MM
- INTAKE DURATION IMPERIAL:
- 253.5°
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- STAGE 1
$289.95Qty in Cart: 0Quantity:Price:$289.95Subtotal: -
RICK'S MOTORSPORT ELECTRIC Rebuild Kit - Pull Start - Yamaha 67-400
RICK'S MOTORSPORT ELECTRIC
$99.95Made to repair the pull start mechanisms, Includes the starter reel, return spring, ratchet, friction spring, friction plate, spring, bushing, recoil gasket and rope assembly09360026- SKU:
- 09360026
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- ATV
- TYPE:
- PULL START
- UNITS:
- KIT
$99.95Qty in Cart: 0Quantity:Price:$99.95Subtotal: -
VERTEX Piston Kit 23638B
VERTEX
$268.95The VERTEX Piston Kit 23638B delivers the reliability and performance you need for serious engine builds. Whether you're rebuilding a two-stroke or four-stroke, this kit provides everything required...09102125- SKU:
- 09102125
- Availability:
- Ships Same Business Day
- Weight:
- 1.29 LBS
$268.95Qty in Cart: 0Quantity:Price:$268.95Subtotal: -
VERTEX Piston Kit 23531B
VERTEX
$271.95Piston durability and ring sealing directly impact your engine's power output and longevity—especially under high boost or sustained RPM. The VERTEX 23531B delivers the metallurgical reliability you...09101967- SKU:
- 09101967
- Availability:
- Ships Same Business Day
- Weight:
- 1.06 LBS
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- PISTON DIAMETER METRIC:
- 96.97 MM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +3.00 MM
- CYLINDER DIAMETER METRIC:
- 97.00 MM
- DISPLACEMENT:
- 480 CC
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- BORE - OVERSIZE:
- +3,00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- STYLE:
- FORGED BIG BORE
$271.95Qty in Cart: 0Quantity:Price:$271.95Subtotal: -
VERTEX Piston Kit 23523B
VERTEX
$316.95The VERTEX Piston Kit 23523B delivers the durability and precision you need for sustained high-RPM performance. Whether you're rebuilding an engine for track duty or maximizing reliability in a...09101970- SKU:
- 09101970
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- STYLE:
- FORGED BIG BORE
- BORE - OVERSIZE:
- +3,00 MM
- DISPLACEMENT:
- 477 CC
- BORE - OVERSIZE METRIC:
- +3.00 MM
- CYLINDER DIAMETER METRIC:
- 99.00 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- PISTON DIAMETER METRIC:
- 98.96 MM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
$316.95Qty in Cart: 0Quantity:Price:$316.95Subtotal: -
VERTEX Piston Kit 23549A
VERTEX
$315.95OEM pistons wear down under sustained high-RPM operation, leading to blow-by, compression loss, and catastrophic engine failure. The VERTEX Piston Kit 23549A delivers competition-grade durability...09101740- SKU:
- 09101740
- Availability:
- Ships Same Business Day
- Weight:
- 0.99 LBS
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- DISPLACEMENT:
- 450 CC
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- PISTON DIAMETER METRIC:
- 95.95 MM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
$315.95 -
VERTEX Piston Kit 24398B
VERTEX
$182.95A top-end rebuild demands precision components that can handle sustained high RPM loads without compromise. The VERTEX Piston Kit 24398B delivers the durability and performance reliability that...09103829- SKU:
- 09103829
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- CYLINDER DIAMETER METRIC:
- 93.00 MM
- DISPLACEMENT:
- 1000 CC
- RIDING STYLE:
- UTV
- STYLE:
- CAST REPLICA
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 92.97 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
$182.95Qty in Cart: 0Quantity:Price:$182.95Subtotal: -
On Sale
Wiseco Piston Kit 93mm 11:1 Compression for Polaris RZR XP 1000 2014-2021 40128M09300
WISECO
MSRP: $260.95Now: $212.00Was: $260.95If you're running a Polaris RZR XP 1000 and want measurable gains in combustion efficiency and engine durability, an OEM-quality piston upgrade is one of the most direct paths to reliable power. The...09103943- SKU:
- 09103943
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- BORE - OVERSIZE:
- STANDARD
- BORE SIZE METRIC:
- 93.00 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- DISPLACEMENT:
- 999 CC
- RIDING STYLE:
- UTV
- STROKE LENGTH METRIC:
- 73.50 MM
MSRP: $260.95Now: $212.00Was: $260.95 -
Wiseco Yamaha YFZ350 Banshee 1987-2006 66mm Piston Kit with Gasket PK143
WISECO
$394.95Stock pistons can't handle the demands of high-performance 2-stroke racing—excessive heat and pressure lead to rapid wear and lost power. The Wiseco YFZ350 Banshee piston kit delivers the strength...09030620- SKU:
- 09030620
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- STROKE LENGTH METRIC:
- 54.00 MM
- DISPLACEMENT:
- 370 CC
- PISTON DIAMETER METRIC:
- 65.92 MM
- SKIRT COATING:
- NON-COATED
- PISTON SIZE METRIC:
- +2.00 MM
- PRODUCT NAME:
- REBUILD KIT
- BORE - OVERSIZE:
- +2,00 MM
- BORE - OVERSIZE METRIC:
- +2.00 MM
- BORE SIZE METRIC:
- 66.00 MM
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- PRO-LITE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- UNITS:
- KIT
$394.95Qty in Cart: 0Quantity:Price:$394.95Subtotal: -
Wiseco Piston Kit 83mm for Polaris Xplorer 400 1995-2001 675M08300
WISECO
$199.95If you're running a high-mileage 400 or pushing your Xplorer to its limits on the track, factory pistons won't cut it. The Wiseco 675M08300 delivers the strength and precision engineering you need to...675M08300- SKU:
- 675M08300
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- DISPLACEMENT:
- 400 CC
- PRODUCT NAME:
- PISTON
- STROKE LENGTH:
- 70,00 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- UNITS:
- EACH
- BORE - OVERSIZE:
- STANDARD
- BORE SIZE METRIC:
- 83.00 MM
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 70.00 MM
$199.95 -
Wiseco Crankshaft Kit for Honda TRX400EX 1999-2004 WPC131A
WISECO
$584.95A worn or damaged crankshaft compromises engine reliability and performance across the board—acceleration suffers, power delivery becomes inconsistent, and you risk catastrophic internal failure. The...09210118- SKU:
- 09210118
- Availability:
- Ships Same Business Day
- Weight:
- 14.50 LBS
- FEATURES:
- INCLUDES BEARING AND GASKET
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- RIDING STYLE:
- ATV
- TYPE:
- BOTTOM END
- MATERIAL:
- STEEL
- UNITS:
- KIT
$584.95Qty in Cart: 0Quantity:Price:$584.95Subtotal: -
Wiseco Crankshaft Kit Honda TRX400X 2009-2014 WPC131B
WISECO
$584.95If you're rebuilding the bottom end of your TRX400X, settling for OEM internals limits your potential for reliability and consistent performance under load. This Wiseco kit delivers factory-assembled...09210478- SKU:
- 09210478
- Availability:
- Ships Same Business Day
- Weight:
- 14.25 LBS
- RIDING STYLE:
- ATV
- TYPE:
- BOTTOM END
- MATERIAL:
- STEEL
- UNITS:
- KIT
- FEATURES:
- INCLUDES BEARING AND GASKET
- PRODUCT NAME:
- CRANKSHAFT KIT
$584.95Qty in Cart: 0Quantity:Price:$584.95Subtotal:
