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
-
WSM Piston Assembly 50-520-685
WSM
$176.98Coated with MOS2 for high performance and heat absorption, Ported to match WSM Banshee sleeves, Fit bores from 64mm to 70.5mm, Piston pin is 5mm higher on long rod pistons to accommodate long rod, Made in Germany09100271- SKU:
- 09100271
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- STYLE:
- BIG BORE
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE:
- +4,50 MM
- BORE SIZE METRIC:
- 68.50 MM
- BORE - OVERSIZE METRIC:
- +4.50 MM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$176.98 -
WSM Piston Assembly 50-520-69
WSM
$176.98Coated with MOS2 for high performance and heat absorption, Ported to match WSM Banshee sleeves, Fit bores from 64mm to 70.5mm, Piston pin is 5mm higher on long rod pistons to accommodate long rod, Made in Germany09100272- SKU:
- 09100272
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- STYLE:
- BIG BORE
- BORE - OVERSIZE:
- +5,00 MM
- BORE - OVERSIZE METRIC:
- +5.00 MM
- BORE SIZE METRIC:
- 69.00 MM
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- EACH
- RIDING STYLE:
- ATV
$176.98 -
WSM Piston Assembly 50-520-5-685
WSM
$187.71Coated with MOS2 for high performance and heat absorption, Ported to match WSM Banshee sleeves, Fit bores from 64mm to 70.5mm, Piston pin is 5mm higher on long rod pistons to accommodate long rod, Made in Germany09100277- SKU:
- 09100277
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- BORE - OVERSIZE:
- +4,50 MM
- BORE - OVERSIZE METRIC:
- +4.50 MM
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- STYLE:
- BIG BORE LONG ROD
- UNITS:
- EACH
- BORE SIZE METRIC:
- 68.50 MM
$187.71 -
WSM Piston Assembly 50-520-5-695
WSM
$187.71Coated with MOS2 for high performance and heat absorption, Ported to match WSM Banshee sleeves, Fit bores from 64mm to 70.5mm, Piston pin is 5mm higher on long rod pistons to accommodate long rod, Made in Germany09100279- SKU:
- 09100279
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- RIDING STYLE:
- ATV
- STYLE:
- BIG BORE LONG ROD
- UNITS:
- EACH
- BORE - OVERSIZE:
- +5,50 MM
- BORE SIZE METRIC:
- 69.50 MM
- BORE - OVERSIZE METRIC:
- +5.50 MM
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON KIT
$187.71 -
VERTEX Piston Kit - Standard 23234200
VERTEX
$237.95All 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 life09101068- SKU:
- 09101068
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
- BORE - OVERSIZE:
- +2,00 MM
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- CYLINDER DIAMETER METRIC:
- 87.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON SIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- DISPLACEMENT:
- 440 CC
- STYLE:
- FORGED BIG BORE
- BORE - OVERSIZE METRIC:
- +2.00 MM
- PISTON DIAMETER METRIC:
- 86.95 MM
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$237.95 -
VERTEX Piston Kit - Standard 22569
VERTEX
$139.95All 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 life09101079- SKU:
- 09101079
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON SIZE METRIC:
- STANDARD
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- CYLINDER DIAMETER METRIC:
- 66.00 MM
- DISPLACEMENT:
- 200 CC
- PISTON DIAMETER METRIC:
- 65.95 MM
- STYLE:
- CAST REPLICA
$139.95Qty in Cart: 0Quantity:Price:$139.95Subtotal: -
VERTEX Piston Kit 22569050
VERTEX
$139.95All 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 life09101081- SKU:
- 09101081
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 66.50 MM
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- DISPLACEMENT:
- 198 CC
- PISTON DIAMETER METRIC:
- 66.45 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
$139.95Qty in Cart: 0Quantity:Price:$139.95Subtotal: -
VERTEX Piston Kit 22569200
VERTEX
$139.95All 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 life09101085- SKU:
- 09101085
- Availability:
- Ships Same Business Day
- Weight:
- 0.68 LBS
- CYLINDER DIAMETER METRIC:
- 68.00 MM
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- DISPLACEMENT:
- 207 CC
- PISTON DIAMETER METRIC:
- 67.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$139.95 -
VERTEX Piston Kit - Standard 22984A
VERTEX
$280.95All 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 life09101089- SKU:
- 09101089
- Availability:
- Ships Same Business Day
- Weight:
- 1.02 LBS
$280.95 -
VERTEX Piston Kit 23104
VERTEX
$175.95All 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...09101090- SKU:
- 09101090
- Availability:
- Ships Same Business Day
- Weight:
- 1.37 LBS
- DISPLACEMENT:
- 660 CC
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 9.1:1
- RIDING STYLE:
- UTV
- STYLE:
- CAST REPLICA
- CYLINDER DIAMETER METRIC:
- 100.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON DIAMETER METRIC:
- 99.95 MM
$175.95 -
VERTEX Piston Kit 23104050
VERTEX
$175.95All 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 life09101091- SKU:
- 09101091
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- COMPRESSION RATIO IMPERIAL:
- 9.1:1
- RIDING STYLE:
- UTV
- STYLE:
- CAST REPLICA
- CYLINDER DIAMETER METRIC:
- 100.50 MM
- DISPLACEMENT:
- 660 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 100.45 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- PISTON MATERIAL:
- CAST
- UNITS:
- KIT
$175.95 -
VERTEX Piston Kit 23104100
VERTEX
$175.95All 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 life09101092- SKU:
- 09101092
- Availability:
- Ships Same Business Day
- Weight:
- 1.38 LBS
- BORE - OVERSIZE:
- +1,00 MM
- CYLINDER DIAMETER METRIC:
- 101.00 MM
- RIDING STYLE:
- UTV
- BORE - OVERSIZE METRIC:
- +1.00 MM
- DISPLACEMENT:
- 660 CC
- PISTON DIAMETER METRIC:
- 100.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- 9.1:1
- STYLE:
- CAST REPLICA
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$175.95 -
VERTEX Piston Kit 23833A
VERTEX
$268.95All 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...09103673- SKU:
- 09103673
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 93.00 MM
- PISTON DIAMETER METRIC:
- 92.96 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- UTV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- DISPLACEMENT:
- 875 CC
- ENGINE TYPE:
- 4-STROKE
- STYLE:
- FORGED HIGH COMPRESSION
$268.95 -
VERTEX Piston Kit 23965A
VERTEX
$237.95All 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
$237.95Qty in Cart: 0Quantity:Price:$237.95Subtotal: -
VERTEX Piston Kit - High Compression 23966C
VERTEX
$153.95All 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 life09103819- SKU:
- 09103819
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- CYLINDER DIAMETER METRIC:
- 102.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- DISPLACEMENT:
- 700 CC
- PISTON DIAMETER METRIC:
- 101.97 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- UTV
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
$153.95 -
VERTEX Piston Kit 23607
VERTEX
$163.95All 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 life09102628- SKU:
- 09102628
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- STYLE:
- CAST LONG ROD
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 373 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 63.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 64.00 MM
$163.95 -
VERTEX Piston Kit 23607050
VERTEX
$159.95All 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 life09102629- SKU:
- 09102629
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- PISTON DIAMETER METRIC:
- 64.45 MM
- PISTON MATERIAL:
- CAST
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 64.50 MM
- STYLE:
- CAST LONG ROD
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 379 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
$159.95 -
VERTEX Piston Kit 23607100
VERTEX
$159.95All 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 life09102630- SKU:
- 09102630
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- STYLE:
- CAST LONG ROD
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 64.95 MM
- BORE - OVERSIZE:
- +1,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- CYLINDER DIAMETER METRIC:
- 65.00 MM
- DISPLACEMENT:
- 385 CC
- PRODUCT NAME:
- PISTON KIT
$159.95 -
VERTEX Piston Kit 23607150
VERTEX
$144.95All 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 life09102631- SKU:
- 09102631
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- DISPLACEMENT:
- 391 CC
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- STYLE:
- CAST LONG ROD
- BORE - OVERSIZE:
- +1,50 MM
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 65.50 MM
- PISTON DIAMETER METRIC:
- 65.45 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- BORE - OVERSIZE METRIC:
- +1.50 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
$144.95 -
VERTEX Piston Kit 23607200
VERTEX
$175.95All 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 life09102632- SKU:
- 09102632
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BORE - OVERSIZE:
- +2,00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- DISPLACEMENT:
- 397 CC
- PISTON DIAMETER METRIC:
- 65.95 MM
- STYLE:
- CAST LONG ROD
- BORE - OVERSIZE METRIC:
- +2.00 MM
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 66.00 MM
- PISTON MATERIAL:
- CAST
- UNITS:
- KIT
$175.95
