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
ATHENA Piston Kit S4C06800001A
ATHENA
MSRP: $134.95Now: $121.00Was: $134.95Includes rings, clips and pin, Easy-to-follow step-by-step installation instructions09101332- SKU:
- 09101332
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- PISTON DIAMETER METRIC:
- 67.95 MM
- PISTON SIZE METRIC:
- STANDARD SIZE A
- PRODUCT NAME:
- PISTON
- STYLE:
- CAST BIG BORE
- COMPRESSION RATIO IMPERIAL:
- 11.9:1
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
MSRP: $134.95Now: $121.00Was: $134.95Qty in Cart: 0Quantity:Price:MSRP: $134.95Now: $121.00Was: $134.95Subtotal: -
On Sale
ATHENA Piston Kit S4C06800001B
ATHENA
MSRP: $134.95Now: $121.00Was: $134.95Includes rings, clips and pin, Easy-to-follow step-by-step installation instructions09101333- SKU:
- 09101333
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- PISTON DIAMETER METRIC:
- 67.96 MM
- PRODUCT NAME:
- PISTON
- STYLE:
- CAST BIG BORE
- ENGINE TYPE:
- 2-STROKE
- PISTON SIZE METRIC:
- STANDARD SIZE B
- COMPRESSION RATIO IMPERIAL:
- 11.9:1
- RIDING STYLE:
- ATV
- UNITS:
- EACH
MSRP: $134.95Now: $121.00Was: $134.95Qty in Cart: 0Quantity:Price:MSRP: $134.95Now: $121.00Was: $134.95Subtotal: -
VERTEX Piston Kit 23909A
VERTEX
$235.95Precision-engineered pistons are the foundation of reliable, high-revving performance—and the VERTEX 23909A kit delivers the durability and break-in characteristics serious builders demand. With...09103384- SKU:
- 09103384
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.5:1
- PISTON DIAMETER METRIC:
- 84.95 MM
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 85.00 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- DISPLACEMENT:
- 750 CC
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- UTV
$235.95 -
VERTEX Piston Kit 23909B
VERTEX
$235.95Precise piston fitment and durability are non-negotiable in high-performance racing. The VERTEX Piston Kit 23909B delivers the metallurgical refinement and surface engineering your engine demands for...09103385- SKU:
- 09103385
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.5:1
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 750 CC
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- UTV
- CYLINDER DIAMETER METRIC:
- 85.00 MM
- PISTON DIAMETER METRIC:
- 84.96 MM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
$235.95 -
VERTEX Piston Kit 23909C
VERTEX
$127.11The VERTEX Piston Kit 23909C delivers the durability and precision required for sustained high-RPM performance and reliable break-in cycles. Built with advanced heat-treatment and a specialized skirt...09103386- SKU:
- 09103386
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.5:1
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 85.00 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- DISPLACEMENT:
- 750 CC
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- UTV
- PISTON DIAMETER METRIC:
- 84.97 MM
$127.11 -
VERTEX Piston Kit 23532A
VERTEX
$315.95A quality piston kit is the foundation of reliable engine performance, and the VERTEX Piston Kit 23532A delivers the durability and precision needed for sustained high-RPM operation. The advanced...09101840- SKU:
- 09101840
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
$315.95 -
VERTEX Piston Kit - Standard 23162
VERTEX
$208.95A quality piston kit is fundamental to engine reliability and performance longevity. The VERTEX Piston Kit - Standard 23162 delivers precision engineering with proven durability, ensuring consistent...09101065- SKU:
- 09101065
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- CYLINDER DIAMETER METRIC:
- 85.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 9.3:1
- DISPLACEMENT:
- 400 CC
- PISTON DIAMETER METRIC:
- 84.95 MM
- PISTON SIZE METRIC:
- STANDARD
$208.95Qty in Cart: 0Quantity:Price:$208.95Subtotal: -
VERTEX Piston Kit 23162050
VERTEX
$181.95Precision-engineered pistons demand materials and processes that withstand extreme combustion pressures and thermal cycling without compromise. The VERTEX Piston Kit 23162050 delivers the durability...09101066- SKU:
- 09101066
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COMPRESSION RATIO IMPERIAL:
- 9.3:1
- DISPLACEMENT:
- 400 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
- BORE - OVERSIZE METRIC:
- +0.50 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- BORE - OVERSIZE:
- +0,50 MM
- PISTON DIAMETER METRIC:
- 85.47 MM
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 85.50 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
$181.95Qty in Cart: 0Quantity:Price:$181.95Subtotal: -
VERTEX Piston Kit 24024C
VERTEX
$117.95Whether you're building a high-revving engine or refreshing tired cylinders, the VERTEX Piston Kit 24024C delivers the durability and precision required for sustained performance. The proprietary...09103825- SKU:
- 09103825
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$117.95Qty in Cart: 0Quantity:Price:$117.95Subtotal: -
On Sale
VERTEX Piston Kit - High Compression 24025B
VERTEX
MSRP: $195.95Now: $125.00Was: $195.95If you're building or rebuilding an engine that demands reliability under sustained high-RPM operation, the VERTEX Piston Kit 24025B delivers the durability and precision required for serious...09103827- SKU:
- 09103827
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- CYLINDER DIAMETER METRIC:
- 85.00 MM
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- 12.1:1
- DISPLACEMENT:
- 750 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 84.96 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $195.95Now: $125.00Was: $195.95Qty in Cart: 0Quantity:Price:MSRP: $195.95Now: $125.00Was: $195.95Subtotal: -
VERTEX Piston Kit 24028A
VERTEX
$289.95Whether you're rebuilding a tired engine or stepping up compression for more power, the VERTEX Piston Kit 24028A delivers the precision and durability required for sustained high-RPM performance...09103831- SKU:
- 09103831
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 92.96 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- 11.5:1
- CYLINDER DIAMETER METRIC:
- 93.00 MM
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 1000 CC
- RIDING STYLE:
- UTV
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
$289.95 -
VERTEX Piston Kit VTKTC22951B-1
VERTEX
$348.95Maximize engine reliability and extend component life with the VERTEX Piston Kit VTKTC22951B-1, engineered for sustained high-RPM performance and rapid break-in. The advanced T-5 heat treatment and...09103839- SKU:
- 09103839
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
$348.95Qty in Cart: 0Quantity:Price:$348.95Subtotal: -
VERTEX Piston Kit VTKTC23623A
VERTEX
$341.95If you're building a high-output engine or rebuilding after a failure, piston quality directly impacts reliability under extreme cylinder pressures and temperatures. The VERTEX Piston Kit VTKTC23623A...09103867- SKU:
- 09103867
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- TOP END PISTON KIT
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 101.95 MM
- DISPLACEMENT:
- 700 CC
- COMPRESSION RATIO IMPERIAL:
- 9.2:1
- CYLINDER DIAMETER METRIC:
- 102.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
$341.95 -
VERTEX Piston Kit VTKTC23623B
VERTEX
$307.95A quality piston kit is the foundation of engine reliability under sustained high RPM operation. VERTEX's VTKTC23623B delivers the metallurgical precision and surface engineering necessary to...09103868- SKU:
- 09103868
- Availability:
- Ships Same Business Day
- Weight:
- 1.57 LBS
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- DISPLACEMENT:
- 700 CC
- PRODUCT NAME:
- TOP END PISTON KIT
- STYLE:
- CAST REPLICA
- COMPRESSION RATIO IMPERIAL:
- 9.2:1
- CYLINDER DIAMETER METRIC:
- 102.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 101.96 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
$307.95Qty in Cart: 0Quantity:Price:$307.95Subtotal: -
VERTEX Piston Kit VTKTC23908A
VERTEX
$604.95When you're pushing your engine to the limit, piston reliability becomes non-negotiable. The VERTEX Piston Kit VTKTC23908A delivers the durability and precision needed for sustained high-RPM...09103870- SKU:
- 09103870
- Availability:
- Ships Same Business Day
- Weight:
- 3.80 LBS
$604.95Qty in Cart: 0Quantity:Price:$604.95Subtotal: -
On Sale
Wiseco Piston 100.5mm 11:1 Compression Yamaha YFM660R 2001-2005 4737M10050
WISECO
MSRP: $258.95Now: $212.00Was: $258.95Stock pistons wear out under sustained high RPM or aggressive riding, causing compression loss, increased blowby, and reduced power output. The Wiseco 4737M10050 restores your YFM660R's performance...4737M10050- SKU:
- 4737M10050
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- RIDING STYLE:
- UTV
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- DISPLACEMENT:
- 660 CC
- UNITS:
- KIT
- BORE SIZE METRIC:
- 100.50 MM
- PISTON DIAMETER METRIC:
- 100.42 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- SKIRT COATING:
- ARMORGLIDE®
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 84.00 MM
MSRP: $258.95Now: $212.00Was: $258.95Qty in Cart: 0Quantity:Price:MSRP: $258.95Now: $212.00Was: $258.95Subtotal: -
Wiseco Piston Kit for Yamaha YFZ350 Banshee 1987-2006 PK141
WISECO
$369.95If you're serious about rebuilding your Banshee's top end, a quality piston kit isn't optional—it's essential. Wiseco's forged pistons are engineered to handle the demands of 2-stroke performance,...09030618- SKU:
- 09030618
- Availability:
- Ships Same Business Day
- Weight:
- 2.18 LBS
- BORE - OVERSIZE:
- +1,00 MM
- STROKE LENGTH METRIC:
- 54.00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- BORE SIZE METRIC:
- 65.00 MM
- DISPLACEMENT:
- 358 CC
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- PRO-LITE
- PISTON DIAMETER METRIC:
- 64.92 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
$369.95Qty in Cart: 0Quantity:Price:$369.95Subtotal: -
Wiseco Yamaha YFM700 Grizzly 2007-2013 Piston Kit with Gasket PK1420
WISECO
$334.95When you're rebuilding a YFM700 Grizzly engine, component quality directly impacts reliability and power delivery. Wiseco's forged piston kits are engineered to handle the demands of high-performance...09030619- SKU:
- 09030619
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- BORE - OVERSIZE:
- +1,00 MM
- RIDING STYLE:
- UTV
- BORE SIZE METRIC:
- 103.00 MM
- PRODUCT NAME:
- REBUILD KIT
- BORE - OVERSIZE METRIC:
- +1.00 MM
- DISPLACEMENT:
- 700 CC
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 102.94 MM
- SKIRT COATING:
- ARMORGLIDE®
- STROKE LENGTH METRIC:
- 84.00 MM
- COMPRESSION RATIO IMPERIAL:
- 9.2:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- UNITS:
- KIT
$334.95 -
Wiseco Piston Kit 83.50mm Oversize for 1995-2001 Polaris Xplorer 400 4x4 675M08350
WISECO
$184.95If you're running a 1995-2001 Polaris Xplorer 400 and looking to maximize displacement and compression, this 83.50mm oversize Wiseco piston kit is engineered to deliver the reliability and power...675M08350- SKU:
- 675M08350
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- BORE - OVERSIZE METRIC:
- +0.50 MM
- DISPLACEMENT:
- 400 CC
- STROKE LENGTH:
- 70,00 MM
- STROKE LENGTH METRIC:
- 70.00 MM
- BORE SIZE METRIC:
- 83.50 MM
- BORE - OVERSIZE:
- +0,50 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$184.95Qty in Cart: 0Quantity:Price:$184.95Subtotal: -
Wiseco Piston Kit 84.00mm for Polaris Big Boss 400L 6X6 1995-1997 675M08400
WISECO
$184.95If you're running a Polaris Big Boss 400L and want to unlock genuine performance gains, this Wiseco piston kit delivers the compression ratio and durability that separates race-ready builds from...675M08400- SKU:
- 675M08400
- Availability:
- Ships Same Business Day
- Weight:
- 1.02 LBS
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- STROKE LENGTH:
- 70,00 MM
- STROKE LENGTH METRIC:
- 70.00 MM
- DISPLACEMENT:
- 400 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- UNITS:
- EACH
- BORE - OVERSIZE:
- +1,00 MM
- BORE SIZE METRIC:
- 84.00 MM
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE METRIC:
- +1.00 MM
$184.95
