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
-
On Sale
VERTEX Piston Kit 23965A
VERTEX
MSRP: $256.95Now: $231.26Was: $256.95All pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09103814- SKU:
- 09103814
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
MSRP: $256.95Now: $231.26Was: $256.95 -
On Sale
VERTEX Piston Kit 23610A
VERTEX
MSRP: $289.95Now: $260.96Was: $289.95All pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09102636- SKU:
- 09102636
- Availability:
- Ships Same Business Day
- Weight:
- 0.89 LBS
- BORE - OVERSIZE METRIC:
- +4.00 MM
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- FORGED BIG BORE
- COMPRESSION RATIO IMPERIAL:
- 9.3:1
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- BORE - OVERSIZE:
- +4,00 MM
- CYLINDER DIAMETER METRIC:
- 89.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 88.94 MM
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- DISPLACEMENT:
- 460 CC
MSRP: $289.95Now: $260.96Was: $289.95 -
Wiseco Piston Kit 74mm 11:1 Compression Honda TRX300EX 1993-2008 4574M07400
WISECO
$194.95Experience unparalleled performance with the WISECO Piston TRX300 Standard 4574M07400, meticulously crafted from high-silicon alloy for exceptional strength and reliability. Designed for both trail and racing enthusiasts, this piston ensures optimal...4574M07400- SKU:
- 4574M07400
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- NON-COATED
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 74.00 MM
- DISPLACEMENT:
- 282 CC
- PISTON DIAMETER METRIC:
- 73.95 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- STROKE LENGTH METRIC:
- 65.50 MM
- UNITS:
- KIT
$194.95Qty in Cart: 0Quantity:Price:$194.95Subtotal: -
Wiseco Piston Kit for 1985-1989 Honda ATC350X and TRX350 PK1017
WISECO
$239.95Upgrade your engine's performance with the WISECO Piston Kit, specifically designed for ATC/TRX350 models. Crafted from high-silicone forged bar stock, these pistons offer exceptional strength and reduced thermal expansion, ensuring reliability under...09030323- SKU:
- 09030323
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 81.95 MM
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- ATV
- DISPLACEMENT:
- 350.4 CC
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 68.00 MM
- BORE - OVERSIZE:
- +1,00 MM
- BORE SIZE METRIC:
- 82.00 MM
- COMPRESSION RATIO IMPERIAL:
- 10.25:1
- BORE - OVERSIZE METRIC:
- +1.00 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
$239.95Qty in Cart: 0Quantity:Price:$239.95Subtotal: -
Wiseco Piston Kit 87.00 mm Oversize for Suzuki LT500R QuadRacer 1987-1990 561M08700
WISECO
$199.95Elevate your racing experience with the Wiseco piston, engineered from high-silicon aluminum for unmatched strength and reliability. This piston is designed to enhance horsepower and torque, making it an essential upgrade for both competitive and...561M08700- SKU:
- 561M08700
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- BORE - OVERSIZE METRIC:
- +1.00 MM
- BORE SIZE METRIC:
- 87.00 MM
- DISPLACEMENT:
- 499,50 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 86.00 MM
- UNITS:
- EACH
- BORE - OVERSIZE:
- +1,00 MM
- STROKE LENGTH:
- 86,00 MM
$199.95 -
Wiseco Piston 68.00 mm Honda TRX250R FourTrax 1986-1989 562M06800
WISECO
$229.95Elevate your racing experience with the Wiseco +2.00 mm piston, engineered from high-silicon aluminum for exceptional strength and reliability. Designed for both trail and competitive racing, this piston maximizes horsepower and torque while ensuring...562M06800- SKU:
- 562M06800
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- BORE - OVERSIZE:
- +2,00 MM
- BORE SIZE METRIC:
- 68.00 MM
- DISPLACEMENT:
- 246 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- +2.00 MM
- STROKE LENGTH:
- 72,00 MM
- STROKE LENGTH METRIC:
- 72.00 MM
$229.95 -
Wiseco Piston Kit 67.50mm 1988-1992 Suzuki LT-R 250 QuadRacer 571M06750
WISECO
$189.95Elevate your racing performance with the WISECO forged piston, designed specifically for the Suzuki LT-R 250 QuadRacer. Crafted from high-silicon aluminum alloy, this piston ensures exceptional strength and reliability, making it ideal for both...571M06750- SKU:
- 571M06750
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- STROKE LENGTH METRIC:
- 70.00 MM
- BORE SIZE METRIC:
- 67.50 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- DISPLACEMENT:
- 246,8 CC
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- STROKE LENGTH:
- 70,00 MM
$189.95 -
Wiseco Piston Kit 81.50mm 10.25:1 Compression Honda ATC350X 1985-1986 PK1016
WISECO
$239.95Experience unmatched performance with the WISECO Piston Kit designed specifically for ATC/TRX350 models. Crafted from high-silicone forged aluminum, this kit offers enhanced strength and reduced thermal expansion for superior reliability. Each complete...09030328- SKU:
- 09030328
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- BORE SIZE METRIC:
- 81.50 MM
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 68.00 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE - OVERSIZE:
- +0,50 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 81.45 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 10.25:1
- DISPLACEMENT:
- 350.4 CC
- RIDING STYLE:
- ATV
$239.95Qty in Cart: 0Quantity:Price:$239.95Subtotal: -
Wiseco Piston Kit 75.50mm 10.25:1 Compression for 1988-2000 Honda TRX300 PK1045
WISECO
$254.95Experience unparalleled performance with the WISECO Piston Kit TRX300 PK1045, designed specifically for high-demand applications. This kit features high-silicone forged pistons that offer exceptional strength and reduced thermal expansion, ensuring...09030330- SKU:
- 09030330
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
- BORE - OVERSIZE:
- +1,50 MM
- BORE SIZE METRIC:
- 75.50 MM
- COMPRESSION RATIO IMPERIAL:
- 10.25:1
- TYPE:
- TOP END
- DISPLACEMENT:
- 282 CC
- PISTON DIAMETER METRIC:
- 75.45 MM
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- BORE - OVERSIZE METRIC:
- +1.50 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 65.50 MM
$254.95Qty in Cart: 0Quantity:Price:$254.95Subtotal: -
Wiseco Piston Kit for 1985-1999 Polaris Trail Boss 250 PK1087
WISECO
$214.95Upgrade your engine's performance with the WISECO Piston Kit, specifically designed for the Polaris 250 T/Boss. Made from high-silicone forged material, this piston kit ensures exceptional strength and minimal thermal expansion, making it ideal for...09030368- SKU:
- 09030368
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 60.00 MM
- BORE SIZE METRIC:
- 73.50 MM
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE - OVERSIZE:
- +1,50 MM
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +1.50 MM
- DISPLACEMENT:
- 244 CC
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 73.42 MM
- SKIRT COATING:
- NON-COATED
$214.95Qty in Cart: 0Quantity:Price:$214.95Subtotal: -
Wiseco Piston Kit Kawasaki KLF300 Bayou 1989-2003 PK1051
WISECO
$239.95Upgrade your engine's performance with the WISECO Piston Kit designed specifically for the Bayou 300. This complete kit features high-performance forged pistons crafted from high-silicone bar stock, ensuring enhanced strength and reduced thermal...09030371- SKU:
- 09030371
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- BORE - OVERSIZE METRIC:
- +0.50 MM
- DISPLACEMENT:
- 290 CC
- TYPE:
- TOP END
- PISTON DIAMETER METRIC:
- 76.45 MM
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 64.00 MM
- BORE - OVERSIZE:
- +0,50 MM
- BORE SIZE METRIC:
- 76.50 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 8.6:1
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- REBUILD KIT
$239.95 -
Wiseco Piston Kit Yamaha YFM 350 Warrior 1987-2004 83.5mm PK1019
WISECO
$254.95Upgrade your engine's performance with the WISECO Piston Kit YFM 350 PK1019. Crafted from high-silicone forged aluminum, these pistons offer exceptional strength and reduced thermal expansion, ensuring reliability even under extreme conditions. This...09030373- SKU:
- 09030373
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 83.50 MM
- TYPE:
- TOP END
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 10.25:1
- PISTON DIAMETER METRIC:
- 83.45 MM
- STROKE LENGTH METRIC:
- 64.50 MM
- DISPLACEMENT:
- 349 CC
- MODEL:
- FORGED SERIES
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- ATV
- SKIRT COATING:
- ARMORGLIDE®
$254.95 -
Wiseco Piston Kit for 1988-2006 Yamaha YFS200 Blaster PK1093
WISECO
$204.95Experience unparalleled performance with the WISECO Piston Kit Blaster PK1093, designed specifically for high-demand 2-cycle engines. Crafted from premium high-silicone forged materials, this kit ensures exceptional strength and minimal thermal...09030382- SKU:
- 09030382
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- BORE - OVERSIZE:
- +1,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- BORE SIZE METRIC:
- 67.00 MM
- SKIRT COATING:
- NON-COATED
- PISTON DIAMETER METRIC:
- 66.95 MM
- STROKE LENGTH METRIC:
- 57.00 MM
- UNITS:
- KIT
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- DISPLACEMENT:
- 195 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
$204.95Qty in Cart: 0Quantity:Price:$204.95Subtotal: -
Wiseco Piston Kit Can-Am Outlander 400 2011-2014 40030M09200
WISECO
$189.95Upgrade your Can Am 400/800 performance with the WISECO Piston Kit, designed for durability and efficiency. This high-quality piston kit enhances engine power and responsiveness, ensuring a smoother ride. Please note that the kit does not include a...09102813- SKU:
- 09102813
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- BORE - OVERSIZE:
- +1,00 MM
- BORE SIZE METRIC:
- 92 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- COMPRESSION RATIO IMPERIAL:
- STOCK
- DISPLACEMENT:
- 800 CC
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON
- SKIRT COATING:
- ARMORGLIDE®
- STROKE LENGTH METRIC:
- 61.50 MM
- UNITS:
- EACH
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- ATV
$189.95Qty in Cart: 0Quantity:Price:$189.95Subtotal: -
Wiseco Piston Kit Honda TRX250 Recon 2002-2020 40061M06900
WISECO
$189.95Enhance the performance of your TRX250 Recon with the WISECO Piston Kit. Designed for durability and precision, this kit ensures optimal engine function and longevity. Please note that the piston kit does not include a gasket kit, so make sure to...09102826- SKU:
- 09102826
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- STROKE LENGTH METRIC:
- 69.00 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE - OVERSIZE:
- +0,50 MM
- BORE SIZE METRIC:
- 69.00 MM
- DISPLACEMENT:
- 233 CC
- PISTON MATERIAL:
- FORGED
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$189.95Qty in Cart: 0Quantity:Price:$189.95Subtotal: -
Wiseco Piston Kit Honda XR200R 1981-2002 67mm 10.25:1 4156M06700
WISECO
$194.95Upgrade your Honda XR/XL ATC with the WISECO Piston Kit, designed for optimal performance and durability. This high-quality piston kit enhances engine efficiency, providing a smoother ride and improved power delivery. Please note that the kit does not...09102827- SKU:
- 09102827
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 57.80 MM
- BORE - OVERSIZE METRIC:
- +2.00 MM
- BORE SIZE METRIC:
- 67.00 MM
- RIDING STYLE:
- ATV
- BORE - OVERSIZE:
- +2,00 MM
- DISPLACEMENT:
- 198 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
$194.95Qty in Cart: 0Quantity:Price:$194.95Subtotal: -
Wiseco Piston Kit 53mm Oversize for Polaris Sportsman 90 2001-2005 839M05300
WISECO
$119.95Upgrade your engine's performance with the WISECO Piston Kit, designed for precision and enhanced durability. This kit offers a +1.00 mm increase in size, providing improved power and efficiency. Please note that this piston kit does not include a gasket...09100383- SKU:
- 09100383
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BORE - OVERSIZE METRIC:
- +1.00 MM
- ENGINE TYPE:
- 2-STROKE
- BORE - OVERSIZE:
- +1,00 MM
- PISTON MATERIAL:
- FORGED
- BORE SIZE METRIC:
- 53.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- DISPLACEMENT:
- STOCK
- PRODUCT NAME:
- PISTON
- STROKE LENGTH METRIC:
- 41.90 MM
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
Wiseco Piston Kit Yamaha YFM80 Raptor 2002-2008 0.50mm Oversize 11:1 Compression 4841M04750
WISECO
$159.95Upgrade your engine's performance with the WISECO Piston Kit, designed for precision and durability. This kit offers a +0.50 mm increase in bore size, ensuring optimal power and efficiency. Please note that this kit does not include a gasket kit, so be...09100390- SKU:
- 09100390
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- PISTON MATERIAL:
- FORGED
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- STROKE LENGTH METRIC:
- 45.60 MM
- DISPLACEMENT:
- 81 CC
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 47.50 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
Wiseco Piston Kit Honda TRX250EX 2001-2008 69mm 0.50mm Oversize 10.5:1 Compression 4935M06900
WISECO
$189.95Enhance the performance of your TRX250EX with the WISECO Piston Kit, designed for durability and efficiency. This high-quality piston kit offers superior power and reliability, ensuring optimal engine performance. Please note that the kit does not...09100857- SKU:
- 09100857
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- +0,50 MM
- BORE SIZE METRIC:
- 69.00 MM
- PRODUCT NAME:
- PISTON
- SKIRT COATING:
- MOLY COATED
- STROKE LENGTH METRIC:
- 62.20 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- DISPLACEMENT:
- 233 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$189.95Qty in Cart: 0Quantity:Price:$189.95Subtotal: -
Wiseco Piston Kit 102mm 11:1 Compression Yamaha YFM700R Raptor 2006-2014 4903M10200
WISECO
$249.95Enhance the performance of your Raptor 700R with the WISECO Piston Kit. Designed for durability and efficiency, this kit provides the perfect balance of power and reliability for your off-road adventures. Note that this kit does not include a gasket set,...09100861- SKU:
- 09100861
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- DISPLACEMENT:
- 686 CC
- SKIRT COATING:
- MOLY COATED
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 102.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 84.00 MM
- UNITS:
- EACH
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
$249.95Qty in Cart: 0Quantity:Price:$249.95Subtotal:
