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
PROX Piston Kit 01.1495.025
PROX
MSRP: $155.95Now: $119.00Was: $155.95Whether you're rebuilding after high-mileage wear or restoring a race engine to factory specifications, the PROX Piston Kit 01.1495.025 delivers the precision and durability that serious engine builders depend on. Cast from high-silicon-content aluminum...PX2501- SKU:
- PX2501
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
- BORE SIZE METRIC:
- 85.25 MM
- PISTON DIAMETER METRIC:
- 85.25 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- PISTON SIZE IMPERIAL:
- +0.010'
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
MSRP: $155.95Now: $119.00Was: $155.95 -
On Sale
PROX Piston Kit 01.2020.050
PROX
MSRP: $121.95Now: $85.00Was: $121.95OEM-equivalent piston performance demands precision engineering and materials that can withstand extreme combustion pressures without compromise. The PROX Piston Kit 01.2020.050 delivers exactly that—Japanese-manufactured pistons cast from high-silicon...PX4192- SKU:
- PX4192
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- PISTON SIZE METRIC:
- +0.50 MM
- RIDING STYLE:
- STREET
- BORE SIZE METRIC:
- 64.50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PISTON DIAMETER METRIC:
- 64.50 MM
MSRP: $121.95Now: $85.00Was: $121.95 -
On Sale
VERTEX Piston Kit - Standard VTK22568
VERTEX
MSRP: $459.95Now: $413.96Was: $459.95All 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 life09102994- SKU:
- 09102994
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- TOP END PISTON KIT
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 64.00 MM
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- STYLE:
- CAST REPLICA
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO:
- STANDARD
- DISPLACEMENT:
- 350 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 63.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $459.95Now: $413.96Was: $459.95 -
On Sale
VERTEX Piston Kit VTK22568050
VERTEX
MSRP: $412.95Now: $371.66Was: $412.95High-performance pistons are critical to engine reliability and power output, especially under sustained boost or high RPM conditions. The VERTEX Piston Kit VTK22568050 combines precision engineering with proven durability coatings to maximize ring seal,...09102996- SKU:
- 09102996
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- BORE - OVERSIZE METRIC:
- +0.50 MM
- PISTON DIAMETER METRIC:
- 64.45 MM
- PISTON MATERIAL:
- CAST
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- BORE - OVERSIZE:
- +0,50 MM
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 64.50 MM
- PRODUCT NAME:
- TOP END PISTON KIT
- STYLE:
- CAST REPLICA
- COMPRESSION RATIO:
- STANDARD
- DISPLACEMENT:
- 350 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $412.95Now: $371.66Was: $412.95 -
On Sale
VERTEX Piston Kit VTK22568100
VERTEX
MSRP: $400.95Now: $360.86Was: $400.95VERTEX pistons are engineered for extreme durability under sustained high-RPM stress, making them the choice for serious racers and built engines pushing maximum output. The proprietary T-5 heat treatment cycle ensures consistent strength across full...09102998- SKU:
- 09102998
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- STYLE:
- CAST REPLICA
- BORE - OVERSIZE METRIC:
- +1.00 MM
- COMPRESSION RATIO:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- BORE - OVERSIZE:
- +1,00 MM
- CYLINDER DIAMETER METRIC:
- 65.00 MM
- DISPLACEMENT:
- 350 CC
- PISTON DIAMETER METRIC:
- 64.95 MM
- PRODUCT NAME:
- TOP END PISTON KIT
MSRP: $400.95Now: $360.86Was: $400.95 -
On Sale
VERTEX Piston Kit VTK22568150
VERTEX
MSRP: $412.95Now: $371.66Was: $412.95VERTEX pistons are engineered for serious builders who demand reliability under extreme combustion pressures and sustained high RPM operation. The T-5 heat treatment cycle delivers exceptional hardness and fatigue resistance, while the Molybdenum...09102999- SKU:
- 09102999
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- COMPRESSION RATIO:
- STANDARD
- DISPLACEMENT:
- 350 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
- BORE - OVERSIZE:
- +1,50 MM
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 65.50 MM
- PISTON DIAMETER METRIC:
- 65.45 MM
- BORE - OVERSIZE METRIC:
- +1.50 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- TOP END PISTON KIT
- UNITS:
- KIT
MSRP: $412.95Now: $371.66Was: $412.95 -
On Sale
VERTEX Piston Kit VTK22568200
VERTEX
MSRP: $412.95Now: $371.66Was: $412.95All 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 life09103000- SKU:
- 09103000
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- BORE - OVERSIZE METRIC:
- +2.00 MM
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- DISPLACEMENT:
- 350 CC
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- STYLE:
- CAST REPLICA
- CYLINDER DIAMETER METRIC:
- 66.00 MM
- BORE - OVERSIZE:
- +2,00 MM
- COMPRESSION RATIO:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 65.95 MM
- PRODUCT NAME:
- TOP END PISTON KIT
MSRP: $412.95Now: $371.66Was: $412.95 -
On Sale
VERTEX Piston Kit - Standard VTK22569
VERTEX
MSRP: $242.95Now: $218.66Was: $242.95Pistons are the hardworking heart of your engine's combustion chamber, and their durability directly impacts your power output and engine longevity. The VERTEX Piston Kit VTK22569 delivers precision engineering with proprietary heat treatment and skirt...09103007- SKU:
- 09103007
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- PISTON DIAMETER METRIC:
- 65.95 MM
- PRODUCT NAME:
- TOP END PISTON KIT
- CYLINDER DIAMETER METRIC:
- 66.00 MM
- DISPLACEMENT:
- 195 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- STYLE:
- CAST REPLICA
MSRP: $242.95Now: $218.66Was: $242.95Qty in Cart: 0Quantity:Price:MSRP: $242.95Now: $218.66Was: $242.95Subtotal: -
On Sale
VERTEX Piston Kit VTKTC23908B
VERTEX
MSRP: $592.95Now: $533.66Was: $592.95A quality piston kit is the foundation of engine reliability and performance—especially under high-load conditions. The VERTEX Piston Kit VTKTC23908B delivers the precision engineering and durability required for sustained power delivery, whether you're...09103871- SKU:
- 09103871
- Availability:
- Ships Same Business Day
- Weight:
- 3.85 LBS
MSRP: $592.95Now: $533.66Was: $592.95 -
On Sale
VERTEX Piston Kit VTKTC23908C
VERTEX
MSRP: $449.95Now: $404.96Was: $449.95All 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 life09103872- SKU:
- 09103872
- Availability:
- Ships Same Business Day
- Weight:
- 3.40 LBS
MSRP: $449.95Now: $404.96Was: $449.95Qty in Cart: 0Quantity:Price:MSRP: $449.95Now: $404.96Was: $449.95Subtotal: -
On Sale
VERTEX Piston Kit 23624A
VERTEX
MSRP: $331.95Now: $298.76Was: $331.95All 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 life09102638- SKU:
- 09102638
- Availability:
- Ships Same Business Day
- Weight:
- 1.16 LBS
- PRODUCT NAME:
- PISTON KIT
- PISTON DIAMETER METRIC:
- 101.95 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- STYLE:
- GP RACER'S CHOICE
- DISPLACEMENT:
- 719 CC
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 9.2:1
- CYLINDER DIAMETER METRIC:
- 102.00 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
MSRP: $331.95Now: $298.76Was: $331.95 -
On Sale
VERTEX Piston Kit 24397B
VERTEX
MSRP: $194.95Now: $175.46Was: $194.95All 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 life, Cast piston kits are gravity-cast aluminum alloy (not...09102640- SKU:
- 09102640
- Availability:
- Ships Same Business Day
- Weight:
- 0.83 LBS
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- PISTON MATERIAL:
- ALUMINUM
- STYLE:
- CAST REPLICA
- PISTON DIAMETER METRIC:
- 79.96 MM
- RIDING STYLE:
- UTV
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 10.2:1
- DISPLACEMENT:
- 800 CC
MSRP: $194.95Now: $175.46Was: $194.95 -
On Sale
VERTEX Piston Kit 23645A
VERTEX
MSRP: $256.95Now: $231.26Was: $256.95Whether you're rebuilding a high-mileage engine or upgrading to forged internals for increased boost, the VERTEX Piston Kit 23645A delivers the durability and precision your build demands. These pistons are engineered to handle sustained high-RPM...09102645- SKU:
- 09102645
- Availability:
- Ships Same Business Day
- Weight:
- 0.87 LBS
- BORE - OVERSIZE:
- +2,00 MM
- BORE - OVERSIZE METRIC:
- +2.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 81.95 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- 10.2:1
- DISPLACEMENT:
- 800 CC
- CYLINDER DIAMETER METRIC:
- 82.00 MM
- STYLE:
- FORGED BIG BORE
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- UTV
- UNITS:
- KIT
MSRP: $256.95Now: $231.26Was: $256.95 -
On Sale
VERTEX Piston Kit 23521B
VERTEX
MSRP: $319.95Now: $287.96Was: $319.95Upgrading to the VERTEX Piston Kit 23521B ensures your engine maintains peak performance and reliability through extended heat cycles and high-RPM demands. The advanced heat treatment and friction-reducing coatings deliver faster break-in times and...09101990- SKU:
- 09101990
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- BORE - OVERSIZE:
- +2,50 MM
- COMPRESSION RATIO IMPERIAL:
- 11.7:1
- CYLINDER DIAMETER METRIC:
- 98.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- FORGED BIG BORE
- BORE - OVERSIZE METRIC:
- +2.50 MM
- DISPLACEMENT:
- 474 CC
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- PISTON DIAMETER METRIC:
- 97.97 MM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
MSRP: $319.95Now: $287.96Was: $319.95Qty in Cart: 0Quantity:Price:MSRP: $319.95Now: $287.96Was: $319.95Subtotal: -
Wiseco Piston Honda CRF450R 2002-2025 4156M06600
WISECO
$177.95Experience unparalleled performance with the WISECO Piston Honda .50mm 4156M06600, engineered from high-silicon alloy for exceptional strength and reliability. This piston is designed to meet the demands of both trail and racing enthusiasts, ensuring...4156M06600- SKU:
- 4156M06600
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- COMPRESSION RATIO IMPERIAL:
- 10.25:1
- DISPLACEMENT:
- 192 CC
- PISTON DIAMETER METRIC:
- 65.95 MM
- STROKE LENGTH METRIC:
- 57.80 MM
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- BORE SIZE METRIC:
- 66.00 MM
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- PISTON KIT
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- ATV
$177.95 -
Wiseco Piston Kit for 2005-2006 Can-Am Outlander 650 XT 40029M08200
WISECO
$189.95Experience unparalleled performance with the WISECO Piston Kit, expertly crafted from a high-silicon alloy to ensure exceptional strength and reliability. Designed to meet the demands of both trail and racing enthusiasts, this piston kit comes complete...09104150- SKU:
- 09104150
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- COMPRESSION RATIO IMPERIAL:
- STOCK
- MODEL:
- FORGED SERIES
- BORE SIZE METRIC:
- 82.00 MM
- PISTON DIAMETER METRIC:
- 81.95 MM
- SKIRT COATING:
- ARMORGLIDE®
- STROKE LENGTH METRIC:
- 62.00 MM
- UNITS:
- KIT
- DISPLACEMENT:
- 655 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
$189.95 -
Wiseco Piston Kit for Polaris RZR 570 2012-2017 99.50mm 10.2:1 40105M09950
WISECO
$224.95When you're pushing your RZR 570 to its limits—whether on the trail or at the track—stock pistons become your weak link. The Wiseco Piston Kit delivers the strength and precision engineering needed to handle increased boost, aggressive riding, and...09104171- SKU:
- 09104171
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- BORE SIZE METRIC:
- 99.50 MM
- ENGINE TYPE:
- 4-STROKE
- BORE - OVERSIZE:
- +0,50 MM
- COMPRESSION RATIO IMPERIAL:
- STOCK
- DISPLACEMENT:
- 566 CC
- PISTON DIAMETER METRIC:
- 99.42 MM
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +0.50 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- MODEL:
- FORGED SERIES
- RIDING STYLE:
- UTV
- STROKE LENGTH METRIC:
- 73.60 MM
$224.95 -
Wiseco Piston Kit Arctic Cat Prowler XT 550 2010-2013 40107M09200
WISECO
$189.95Engineered for optimal performance, the WISECO Piston Kit for the Arctic Cat 550 is constructed from a high-silicon alloy, ensuring exceptional strength and reliability. This piston kit is designed to meet the demands of both trail and racing...09104173- SKU:
- 09104173
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- DISPLACEMENT:
- 545 CC
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 92.00 MM
- COMPRESSION RATIO IMPERIAL:
- STOCK
- PISTON DIAMETER METRIC:
- 91.92 MM
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- UTV
- STROKE LENGTH METRIC:
- 82.00 MM
$189.95 -
Wiseco Piston Kit Yamaha Raptor 350 2005-2013 83.50mm 11:1 40109M08350
WISECO
$224.95Enhance your Raptor 350's performance with the WISECO Piston Kit, engineered from high-silicon alloy for exceptional strength and reliability. This kit is perfect for both trail riding and racing, ensuring you get the most out of your engine. Each piston...09104175- SKU:
- 09104175
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 349 CC
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- FORGED SERIES
- BORE SIZE METRIC:
- 83.50 MM
- PISTON DIAMETER METRIC:
- 83.45 MM
- STROKE LENGTH METRIC:
- 64.50 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORGLIDE®
$224.95Qty in Cart: 0Quantity:Price:$224.95Subtotal: -
Wiseco Piston Kit for 2007-2014 Polaris Outlaw 90 47.50mm 10.5:1 40122M04750
WISECO
$159.95Upgrade your Polaris engine with the WISECO Piston Kit, designed for optimal performance and durability. This high-quality piston kit enhances engine efficiency while ensuring a perfect fit for your specific model. Please note that this kit does not...09103935- SKU:
- 09103935
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- DISPLACEMENT:
- 88,50 CC
- STROKE LENGTH METRIC:
- 51.00 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- BORE - OVERSIZE:
- +0,50 MM
- BORE SIZE METRIC:
- 47.50 MM
- PISTON MATERIAL:
- FORGED
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$159.95
