ATV/UTV Piston and Ring Kits
ATV/UTV Piston & Ring Kits at JJ Motorsports
Rebuild your ATV/UTV engine with premium forged piston and ring kits from JJ Motorsports, featuring high-compression and big-bore options for massive power gains on Yamaha YFZ450, Honda TRX450R, Suzuki LTZ400, and more. These race-proven kits deliver superior durability and performance in off-road, trail, and dune conditions.
Shop Millennium, JE Pistons, and Wossner piston kits for championship-level quality. Explore related categories such as ATV/UTV engine for cylinders and gaskets, or ATV/UTV for cams and exhaust to complete your top-end rebuild and dominate the track or trail.
Top ATV/UTV Piston & Ring Kits
- Millennium Piston Kit K8897D500-2 – +5.00mm big-bore piston kit; forged for Yamaha YFZ450/R with rings, pin, and clips.
- JE Pistons Piston Kit 261546 – High-compression forged piston; includes rings and wrist pin for Honda TRX450R.
- Wossner Piston Kit 8094D050 – +0.50mm oversize piston kit; lightweight forged with moly coating for Suzuki LTZ400.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Wiseco Piston Kit Yamaha YFZ450R 2009-2013 98mm 12.5:1 4906M09800
WISECO
$309.95Enhance your engine's performance with the WISECO Piston Kit Big Bore 4906M09800, designed for durability and efficiency. This high-quality piston kit is engineered to provide optimal power output and reliability, making it an essential upgrade for...09102845- SKU:
- 09102845
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- BORE - OVERSIZE:
- +3,00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- DISPLACEMENT:
- 478 CC
- STROKE LENGTH METRIC:
- 62.00 MM
- DISPLACEMENT:
- 467 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- +3.00 MM
- BORE SIZE METRIC:
- 98.00 MM
$309.95 -
Wiseco Piston Kit Yamaha YFM450 Grizzly 2007-2014 4939M08450
WISECO
$224.95The WISECO Piston Kit Standard 4939M08450 is engineered for high performance and durability, making it an excellent choice for enthusiasts looking to enhance their engine's efficiency. Designed to provide optimal compression and power, this piston kit is...09102851- SKU:
- 09102851
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 75.00 MM
- UNITS:
- EACH
- BORE - OVERSIZE:
- STANDARD
- DISPLACEMENT:
- 420 CC
- BORE SIZE METRIC:
- 84.50 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- RIDING STYLE:
- UTV
$224.95 -
Wiseco Piston Kit Yamaha YFM450 Grizzly 2007-2014 4939M08500
WISECO
$224.95The WISECO Piston Kit 4939M08500 is designed for high-performance applications, delivering exceptional durability and reliability. This kit is engineered to enhance engine performance, ensuring optimal power and efficiency. Please note that this kit does...09102852- SKU:
- 09102852
- Availability:
- Ships Same Business Day
- Weight:
- 0.97 LBS
- BORE SIZE METRIC:
- 85.00 MM
- DISPLACEMENT:
- 420 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- STROKE LENGTH METRIC:
- 75.00 MM
- UNITS:
- EACH
- BORE - OVERSIZE:
- +0,50 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- BORE - OVERSIZE METRIC:
- +0.50 MM
- RIDING STYLE:
- UTV
$224.95 -
Wiseco Piston Kit 85.50mm 11:1 Compression Yamaha YFM450 Grizzly 2007-2014 4939M08550
WISECO
$224.95Enhance the performance of your Grizzly or Rhino with the WISECO Piston Kit 4939M08550. Designed for durability and efficiency, this piston kit offers superior engineering for optimal engine function. Please note that this kit does not include a gasket...09102853- SKU:
- 09102853
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- BORE SIZE METRIC:
- 85.50 MM
- DISPLACEMENT:
- 420 CC
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH METRIC:
- 75.00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE - OVERSIZE:
- +1,00 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- RIDING STYLE:
- UTV
$224.95 -
Wiseco 80mm Piston Kit for Kawasaki KVF650 Brute Force 2005-2010 4782M08000
WISECO
$189.95Experience unmatched performance and reliability with the WISECO Piston 4782M08000. Crafted from a high-silicon alloy, this piston is designed to withstand the rigors of both trail and racing environments, ensuring optimal engine efficiency. Each piston...4782M08000- SKU:
- 4782M08000
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 63.00 MM
- BORE SIZE METRIC:
- 80.00 MM
- DISPLACEMENT:
- 633 CC
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- PISTON DIAMETER METRIC:
- 79.95 MM
$189.95 -
Wiseco Piston Kit for Kawasaki KVF650 Brute Force 4x4 2005-2010 4782M08100
WISECO
$189.95Engineered for peak performance, the Wiseco Piston 4782M08100 is crafted from a high-silicon alloy, ensuring exceptional strength and reliability for both trail and racing enthusiasts. This piston is designed to deliver optimal power and efficiency,...4782M08100- SKU:
- 4782M08100
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- BORE SIZE METRIC:
- 81.00 MM
- STROKE LENGTH METRIC:
- 63.00 MM
- BORE - OVERSIZE:
- +1,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- PISTON DIAMETER METRIC:
- 80.95 MM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- ATV
- DISPLACEMENT:
- 633 CC
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
$189.95 -
Wiseco Piston Kit Honda Pioneer 700 2014-2021 40066M10300
WISECO
$224.95Upgrade your Honda's performance with the WISECO Piston Kit, designed specifically for the 40066M10300 model. This high-quality piston kit enhances engine efficiency and power, ensuring a smoother ride and improved throttle response. Please note, this...09103925- SKU:
- 09103925
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH METRIC:
- 82.60 MM
- BORE SIZE METRIC:
- 103.00 MM
- BORE - OVERSIZE:
- +1,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- DISPLACEMENT:
- 688 CC
- RIDING STYLE:
- UTV
$224.95 -
WSM Piston Kit - Kawasaki 750 - +.50 mm 50-258-05K
WSM
$118.37Quality and construction that meets or exceeds OEM, Feature improved E-clip design, Contain piston, rings, pin and clips, Additional rings available separately, Order one per cylinder, Skirts have a nonabrasive, expansion-retarding MOS2 coating to reduce...09103546- SKU:
- 09103546
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- MODEL:
- ORIGINAL
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 85.50 MM
$118.37 -
Wossner Piston Kit 95.50mm 11.7:1 Compression Suzuki LT-R450 2006-2009 8667DA
WOSSNER
$204.00Elevate your engine's performance with the WOSSNER Piston Kit 8667DA, meticulously engineered for 2-stroke applications. Crafted from premium materials, this piston kit ensures optimal efficiency and durability, making it the perfect choice for...09104966- SKU:
- 09104966
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- MODEL:
- STANDARD SERIES
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PISTON SIZE METRIC:
- 95.45 MM
- BORE SIZE METRIC:
- 95.50 MM
- COMPRESSION RATIO IMPERIAL:
- 11.7:1
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$204.00 -
Wiseco Piston Kit Honda TRX300EX 1993-2008 74mm 11:1 PK1030
WISECO
$244.95Upgrade your Honda TRX300EX with the WISECO Piston Kit, designed for optimal performance and durability. This complete kit includes everything you need for a high-performance engine rebuild, ensuring your ATV runs at its best with enhanced strength and...09030313- SKU:
- 09030313
- Availability:
- Ships Same Business Day
- Weight:
- 1.59 LBS
- BORE SIZE METRIC:
- 76.00 MM
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 65.50 MM
- BORE - OVERSIZE METRIC:
- +2.00 MM
- DISPLACEMENT:
- 282 CC
- PISTON DIAMETER METRIC:
- 75.95 MM
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- BORE - OVERSIZE:
- +2,00 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- PISTON SIZE METRIC:
- +2.00 MM
- TYPE:
- TOP END
$244.95 -
Wiseco Yamaha YFM600FW Grizzly 4x4 1998-2001 Piston Kit PK1057
WISECO
$289.95Upgrade your engine with the WISECO Piston Kit, designed specifically for the Grizzly 600. This high-performance kit features precision-forged pistons that deliver exceptional strength and thermal stability, ensuring optimal performance in demanding...09030314- SKU:
- 09030314
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- BORE SIZE METRIC:
- 95.00 MM
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- DISPLACEMENT:
- 598 CC
- COMPRESSION RATIO IMPERIAL:
- 8.5:1
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 84.00 MM
- TYPE:
- TOP END
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 94.92 MM
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
$289.95 -
Wiseco Piston Kit Yamaha YFM600FW Grizzly 4x4 1998-2001 PK1059
WISECO
$289.95Elevate your engine's performance with the WISECO Piston Kit, specifically designed for the Grizzly 600. Crafted from high-silicone forged material, this kit ensures exceptional strength and minimal thermal expansion, making it ideal for high-performance...09030315- SKU:
- 09030315
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- COMPRESSION RATIO IMPERIAL:
- 8.5:1
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 96.92 MM
- SKIRT COATING:
- NON-COATED
- BORE - OVERSIZE METRIC:
- +2.00 MM
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 97.00 MM
- DISPLACEMENT:
- 598 CC
- UNITS:
- KIT
- BORE - OVERSIZE:
- +2,00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- PISTON SIZE METRIC:
- +2.00 MM
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 84.00 MM
$289.95 -
Wiseco Piston Kit Honda ATC 185 200 1981-1986 PK1000
WISECO
$229.95Experience superior performance with the WISECO Piston Kit, specifically designed for Honda ATC models. Crafted from high-silicone forged aluminum, these pistons offer exceptional strength and reduced thermal expansion, ensuring optimal engine...09030316- SKU:
- 09030316
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- BORE - OVERSIZE METRIC:
- +2.00 MM
- BORE SIZE METRIC:
- 65.00 MM
- PISTON DIAMETER METRIC:
- 64.95 MM
- TYPE:
- TOP END
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 10.25:1
- PISTON SIZE METRIC:
- +2.00 MM
- STROKE LENGTH METRIC:
- 57.80 MM
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- BORE - OVERSIZE:
- +2,00 MM
- DISPLACEMENT:
- 191.8 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- ATV
$229.95 -
Wiseco Honda TRX300 FourTrax 1988-2000 Piston Kit PK1042
WISECO
$244.95Enhance your engine's performance with the WISECO Piston Kit TRX300 PK1042. Crafted from high-silicone forged material, this kit ensures superior strength and minimal thermal expansion, making it ideal for high-performance applications. Each kit comes...09030318- SKU:
- 09030318
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- COMPRESSION RATIO IMPERIAL:
- 10.25:1
- TYPE:
- TOP END
- DISPLACEMENT:
- 282 CC
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 74.00 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 73.95 MM
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 65.50 MM
$244.95 -
Wiseco Piston Kit Yamaha YFM700R Raptor 2006-2014 9.2:1 Compression PK1416
WISECO
$334.95Enhance your Raptor 700's performance with the WISECO Piston Kit, designed for superior strength and efficiency. Crafted from high-silicone forged materials, this kit ensures lower thermal expansion and greater durability under extreme conditions. ...09031271- SKU:
- 09031271
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- MODEL:
- FORGED SERIES
- TYPE:
- TOP END
- BORE - OVERSIZE:
- +1,00 MM
- COMPRESSION RATIO IMPERIAL:
- 9.2:1
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +1.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 103.00 MM
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 84.00 MM
- BORE SIZE METRIC:
- 103.00 MM
- DISPLACEMENT:
- 700 CC
- PRODUCT NAME:
- REBUILD KIT
$334.95 -
Wiseco Yamaha YFS200 Blaster 1988-2006 Piston Kit 67.25mm PK1094
WISECO
$219.95Elevate your engine's performance with the WISECO Piston Kit, expertly crafted for 2-cycle engines. This complete kit includes everything you need for a high-performance upgrade, ensuring durability and precision under extreme conditions. Forged...09030455- SKU:
- 09030455
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- PRODUCT NAME:
- REBUILD KIT
- BORE SIZE METRIC:
- 67.25 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- DISPLACEMENT:
- 195 CC
- PISTON DIAMETER METRIC:
- 67.25 MM
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- BORE - OVERSIZE:
- +1,25 MM
- BORE - OVERSIZE METRIC:
- +1.25 MM
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- PRO-LITE
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 57.00 MM
- UNITS:
- KIT
$219.95 -
Wiseco Yamaha YFS200 Blaster 1988-2006 Piston Kit 67.75mm PK1096
WISECO
$219.95Experience unmatched performance with the WISECO Piston Kit, designed specifically for high-demand 2-cycle engines. This complete kit provides everything you need for a top-end rebuild, ensuring optimal strength and thermal stability under extreme...09030458- SKU:
- 09030458
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- PISTON DIAMETER METRIC:
- 67.70 MM
- BORE - OVERSIZE METRIC:
- +1.75 MM
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 57.00 MM
- UNITS:
- KIT
- BORE SIZE METRIC:
- 67.75 MM
- PRODUCT NAME:
- REBUILD KIT
- BORE - OVERSIZE:
- +1,75 MM
- DISPLACEMENT:
- 195 CC
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- PRO-LITE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
$219.95 -
Wiseco Piston Kit with Gaskets for Honda ATC250R 1985-1986 69mm PK1082
WISECO
$284.95Experience unparalleled performance with the WISECO Piston Kit, meticulously engineered for 2-cycle engines. Crafted from high-silicone forged aluminum, this kit ensures exceptional strength and minimal thermal expansion, making it ideal for...09030464- SKU:
- 09030464
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- BORE - OVERSIZE:
- +3,00 MM
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- PRO-LITE
- PISTON DIAMETER METRIC:
- 68.92 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 69.00 MM
- DISPLACEMENT:
- 246 CC
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE - OVERSIZE METRIC:
- +3.00 MM
$284.95 -
Wiseco Piston Kit for Yamaha YFZ350 Banshee 1987-2006 PK148
WISECO
$379.95Elevate your engine's performance with the WISECO Piston Kit, expertly crafted from high-silicon aluminum alloy for unparalleled strength and reliability. This comprehensive kit includes everything you need for a successful top-end rebuild, ensuring...09030467- SKU:
- 09030467
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- DISPLACEMENT:
- 346 CC
- PISTON MATERIAL:
- ALUMINUM
- TYPE:
- TOP END
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 54.00 MM
- BORE - OVERSIZE:
- STANDARD
- BORE SIZE METRIC:
- 64.00 MM
- MODEL:
- RACER'S CHOICE
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- STANDARD
- COOLING SYSTEM:
- LIQUID COOLED
$379.95 -
Wiseco Piston Kit Honda TRX450R 2004-2005 4849M09400
WISECO
$274.95Enhance the performance of your TRX450R with the WISECO Piston Kit, designed for reliability and power. This high-quality piston kit ensures optimal engine efficiency and longevity, making it an essential upgrade for any serious rider. Please note that...09100666- SKU:
- 09100666
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- PISTON MATERIAL:
- FORGED
- BORE SIZE METRIC:
- 94 MM
- DISPLACEMENT:
- 450 CC
- SKIRT COATING:
- MOLY COATED
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 64.80 MM
- UNITS:
- EACH
$274.95
