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
-
PROX Piston Kit 01.2660.100
PROX
$139.95When your engine demands reliability at high RPM, OEM-spec pistons are non-negotiable. The PROX Piston Kit 01.2660.100 delivers factory-engineered performance with the precision tolerances required...PX4674- SKU:
- PX4674
- Availability:
- Ships Same Business Day
- Weight:
- 1.38 LBS
- BORE SIZE METRIC:
- 101.00 MM
- RIDING STYLE:
- UTV
- PISTON MATERIAL:
- ALUMINUM ALLOY
- ENGINE TYPE:
- 4-STROKE
- PISTON SIZE METRIC:
- +1.00 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PISTON DIAMETER METRIC:
- 101.00 MM
$139.95Qty in Cart: 0Quantity:Price:$139.95Subtotal: -
PROX Piston Kit 01.1495.000
PROX
$155.95When your engine demands precision and reliability, OEM-equivalent performance is non-negotiable. The PROX Piston Kit 01.1495.000 delivers factory-spec durability with CNC-machined accuracy, ensuring...PX2500- SKU:
- PX2500
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
- BORE SIZE METRIC:
- 85.00 MM
- PISTON SIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 85.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- PISTON KIT
$155.95 -
PROX Piston Kit 01.1495.025
PROX
$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...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
$155.95 -
PROX Piston Kit 01.2020.050
PROX
$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...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
$121.95 -
VERTEX Piston Kit - Standard VTK22568
VERTEX
$459.95A quality piston kit is the foundation of reliable engine performance, and the VERTEX Standard VTK22568 delivers the durability and precision needed for both street and circuit applications. This kit...09102994- 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
$459.95 -
VERTEX Piston Kit VTK22568050
VERTEX
$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...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
$412.95Qty in Cart: 0Quantity:Price:$412.95Subtotal: -
VERTEX Piston Kit VTK22568100
VERTEX
$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...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
$400.95 -
VERTEX Piston Kit VTK22568150
VERTEX
$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...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
$412.95Qty in Cart: 0Quantity:Price:$412.95Subtotal: -
VERTEX Piston Kit VTK22568200
VERTEX
$412.95Precision-engineered pistons are the foundation of reliable high-RPM performance, and the VERTEX Piston Kit VTK22568200 delivers the durability you need for sustained power delivery. Whether you're...09103000- 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
$412.95 -
VERTEX Piston Kit - Standard VTK22569
VERTEX
$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...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
$242.95Qty in Cart: 0Quantity:Price:$242.95Subtotal: -
VERTEX Piston Kit VTKTC23908B
VERTEX
$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...09103871- SKU:
- 09103871
- Availability:
- Ships Same Business Day
- Weight:
- 3.85 LBS
$592.95 -
VERTEX Piston Kit VTKTC23908C
VERTEX
$449.95If you're building or rebuilding an engine for serious performance, piston quality directly impacts reliability, longevity, and power delivery under extreme conditions. The VERTEX Piston Kit...09103872- SKU:
- 09103872
- Availability:
- Ships Same Business Day
- Weight:
- 3.40 LBS
$449.95Qty in Cart: 0Quantity:Price:$449.95Subtotal: -
VERTEX Piston Kit 23624A
VERTEX
$331.95A quality piston kit is the foundation of a reliable, high-revving engine—and the VERTEX Piston Kit 23624A is engineered to deliver both. With advanced heat treatment and a specialized molybdenum...09102638- 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
$331.95 -
VERTEX Piston Kit 24397B
VERTEX
$194.95A worn or damaged piston directly kills engine performance and reliability—and the VERTEX Piston Kit 24397B delivers the precision-engineered replacement your engine demands. Whether you're...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
$194.95 -
VERTEX Piston Kit 23645A
VERTEX
$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...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
$256.95 -
VERTEX Piston Kit 23521B
VERTEX
$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...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
$319.95Qty in Cart: 0Quantity:Price:$319.95Subtotal: -
Wiseco Piston Honda CRF450R 2002-2025 4156M06600
WISECO
$177.95When your CRF450R's original piston reaches the end of its service life, a quality replacement is non-negotiable—especially if you're pushing power on the track or tackling demanding trail conditions...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
$177.95Qty in Cart: 0Quantity:Price:$177.95Subtotal: -
Wiseco Piston Kit for 2005-2006 Can-Am Outlander 650 XT 40029M08200
WISECO
$189.95When your 2005-2006 Can-Am Outlander 650 XT demands more power and reliability, a worn piston kit compromises both your ride quality and engine longevity. The Wiseco Piston Kit delivers the precision...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
$189.95Qty in Cart: 0Quantity:Price:$189.95Subtotal: -
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...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
$224.95Qty in Cart: 0Quantity:Price:$224.95Subtotal: -
Wiseco Piston Kit Arctic Cat Prowler XT 550 2010-2013 40107M09200
WISECO
$189.95When your Arctic Cat Prowler XT 550 is pushing hard on the trail or in competition, your piston kit is working at the absolute limit. Worn or inferior pistons compromise compression, throttle...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
$189.95Qty in Cart: 0Quantity:Price:$189.95Subtotal:
