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
-
VERTEX Piston Kit 23555A
VERTEX
$247.95The VERTEX Piston Kit 23555A delivers the durability and precision needed for sustained high-RPM performance without compromising reliability. Whether you're chasing lap times or building a long-term engine platform, these pistons combine advanced...09102104- SKU:
- 09102104
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- UTV
- CYLINDER DIAMETER METRIC:
- 100.00 MM
- DISPLACEMENT:
- 660 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 99.95 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
$247.95Qty in Cart: 0Quantity:Price:$247.95Subtotal: -
Wiseco 74mm 11.5:1 Piston Kit Kawasaki KSF250 Mojave 1989-2003 PK1746
WISECO
$234.95If you're rebuilding or overboring your KSF250 Mojave's top end, you need a piston kit engineered to handle sustained high RPM and aggressive riding conditions. Wiseco's forged construction delivers the strength and thermal stability required for...09031276- SKU:
- 09031276
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.5:1
- DISPLACEMENT:
- 249 CC
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 74.00 MM
- BORE - OVERSIZE:
- STANDARD
- RIDING STYLE:
- ATV
- STROKE LENGTH IMPERIAL:
- 2-1/4'
- UNITS:
- KIT
$234.95 -
Wiseco Piston Kit 93mm Bore 10.2:1 Compression Polaris Sportsman 500 1996-2000 PK1654
WISECO
$289.95If you're rebuilding your Polaris Sportsman 500, piston quality directly determines how your engine handles sustained RPMs, heat cycles, and load stress. Wiseco's high-silicone forged construction delivers the strength and thermal stability you need for...09031275- SKU:
- 09031275
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- BORE - OVERSIZE:
- +1,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- DISPLACEMENT:
- 499 CC
- RIDING STYLE:
- UTV
- BORE SIZE METRIC:
- 93.00 MM
- COMPRESSION RATIO IMPERIAL:
- 10.2:1
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 92.95 MM
- SKIRT COATING:
- NON-COATED
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 75.00 MM
- TYPE:
- TOP END
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$289.95Qty in Cart: 0Quantity:Price:$289.95Subtotal: -
Wiseco Piston Kit with Gaskets for Polaris Sportsman 500 1996-2002 PK1653
WISECO
$301.95When your Polaris Sportsman 500's engine is pushing its limits, stock pistons won't cut it. The Wiseco PK1653 kit delivers the strength and thermal stability your 2-cycle engine needs to handle aggressive riding and sustained high-RPM performance. This...09030919- SKU:
- 09030919
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- BORE SIZE METRIC:
- 92.50 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- COMPRESSION RATIO IMPERIAL:
- 10.2:1
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 75.00 MM
- BORE - OVERSIZE:
- +0,50 MM
- DISPLACEMENT:
- 499 CC
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +0.50 MM
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 92.45 MM
- SKIRT COATING:
- NON-COATED
$301.95 -
Wiseco Yamaha YFM660F Grizzly 2002-2008 YXR660F Rhino 2005-2007 Piston Kit PK1436
WISECO
$349.95If you're rebuilding your Yamaha Grizzly or Rhino's top end, settling for OEM components means accepting factory performance limits. Wiseco's PK1436 piston kit delivers the strength and precision needed to handle aggressive riding conditions while...09030626- SKU:
- 09030626
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 84.00 MM
- TYPE:
- TOP END
- BORE - OVERSIZE METRIC:
- +0.50 MM
- PISTON DIAMETER METRIC:
- 100.42 MM
- PRODUCT NAME:
- REBUILD KIT
- BORE - OVERSIZE:
- +0,50 MM
- BORE SIZE METRIC:
- 100.50 MM
- COMPRESSION RATIO IMPERIAL:
- 9.9:1
- DISPLACEMENT:
- 660 CC
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- MODEL:
- FORGED SERIES
- RIDING STYLE:
- UTV
$349.95Qty in Cart: 0Quantity:Price:$349.95Subtotal: -
Wiseco Piston Kit with Gasket Yamaha Raptor 660R 2001-2005 PK1431
WISECO
$334.95A top-end rebuild demands precision components engineered to withstand sustained high RPM operation and thermal stress. The Wiseco Piston Kit delivers the complete solution for restoring your Raptor 660R's performance with OEM-quality reliability and the...09030621- SKU:
- 09030621
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 9.9:1
- PRODUCT NAME:
- REBUILD KIT
- SKIRT COATING:
- ARMORGLIDE®
- BORE SIZE METRIC:
- 100.00 MM
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 99.92 MM
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 84.00 MM
- TYPE:
- TOP END
- DISPLACEMENT:
- 660 CC
- UNITS:
- KIT
$334.95Qty in Cart: 0Quantity:Price:$334.95Subtotal: -
Wiseco Piston +1.50 mm Yamaha Banshee 350 1987-2006 795M06550
WISECO
$188.95If you're running a Yamaha Banshee 350 and want measurable gains in compression ratio and ring sealing efficiency, a quality forged piston is non-negotiable. The Wiseco +1.50 mm piston delivers the strength and precision you need whether you're pushing...795M06550- SKU:
- 795M06550
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- ENGINE TYPE:
- 2-STROKE
- STROKE LENGTH:
- 54,00 MM
- BORE - OVERSIZE:
- +1,50 MM
- BORE - OVERSIZE METRIC:
- +1.50 MM
- BORE SIZE METRIC:
- 65.50 MM
- STROKE LENGTH METRIC:
- 54.00 MM
- DISPLACEMENT:
- 364 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$188.95 -
Wiseco 74.50mm Piston Kit for 1994-1995 Polaris 300 2x4 4x4 Big Boss 300 6x6 PK1516
WISECO
$199.95If you're rebuilding the top end on your Polaris 300, settling for inferior pistons is a shortcut to premature wear and lost power. Wiseco's forged piston kit delivers the thermal control and durability you need to keep your engine reliable through...09030638- SKU:
- 09030638
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 74.50 MM
- PRODUCT NAME:
- REBUILD KIT
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- PRO-LITE
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- DISPLACEMENT:
- 283 CC
- PISTON DIAMETER METRIC:
- 74.42 MM
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 65.00 MM
- UNITS:
- KIT
$199.95Qty in Cart: 0Quantity:Price:$199.95Subtotal: -
Wiseco Piston Kit 11:1 Compression for 2003-2005 Honda TRX650FA Rincon 40067M10000
WISECO
$224.95If you're running a TRX650FA Rincon hard enough to wear out your stock pistons, an 11:1 compression upgrade delivers measurable gains in power and throttle response. This Wiseco kit swaps in as a complete assembly with rings and circlips included,...09104154- SKU:
- 09104154
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORGLIDE®
- STROKE LENGTH METRIC:
- 82.60 MM
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- FORGED SERIES
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 100 MM
- DISPLACEMENT:
- 649 CC
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- PISTON DIAMETER METRIC:
- 99.92 MM
- UNITS:
- KIT
$224.95Qty in Cart: 0Quantity:Price:$224.95Subtotal: -
Wiseco Piston Kit Yamaha YFM125R Raptor 2011-2013 11:1 40068M05400
WISECO
$169.95If you're running a stock YFM125R Raptor and want measurable gains in power and reliability, a quality piston kit is essential—especially one engineered for the demands of both trail and racing. The Wiseco 11:1 compression ratio delivers noticeably...09104155- SKU:
- 09104155
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- DISPLACEMENT:
- 124 CC
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- BORE SIZE METRIC:
- 54.00 MM
- PRODUCT NAME:
- PISTON KIT
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 53.95 MM
- STROKE LENGTH METRIC:
- 54.00 MM
$169.95Qty in Cart: 0Quantity:Price:$169.95Subtotal: -
WSM Piston Kit - Honda 400 - +.75 mm 50-228-06K
WSM
$122.25If you're rebuilding a Honda 400 engine and want to reclaim lost compression while maintaining reliability, a quality piston kit is non-negotiable. WSM's +.75 mm oversize pistons deliver OEM-equivalent or better construction with purposeful...09103486- SKU:
- 09103486
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- BORE SIZE METRIC:
- 85.75 MM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- BORE - OVERSIZE:
- +0,75 MM
- PISTON MATERIAL:
- ALUMINUM
- BORE - OVERSIZE METRIC:
- +0.75 MM
- MODEL:
- ORIGINAL
- RIDING STYLE:
- ATV
$122.25Qty in Cart: 0Quantity:Price:$122.25Subtotal: -
WSM Piston Kit - Honda 400 - +1 mm 50-228-07K
WSM
$122.25If you're running a Honda 400 and pushing for every last horsepower while maintaining reliability, worn pistons are leaving power on the table. WSM's +1mm piston kit delivers the thermal management and structural integrity you need for sustained high-RPM...09103487- SKU:
- 09103487
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE - OVERSIZE:
- +1,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 86.00 MM
- PISTON MATERIAL:
- ALUMINUM
- UNITS:
- KIT
- MODEL:
- ORIGINAL
- RIDING STYLE:
- ATV
$122.25Qty in Cart: 0Quantity:Price:$122.25Subtotal: -
WSM Piston Kit - Honda 250 - +.50 mm 50-229-05K
WSM
$98.62When your Honda 250 is pushed to its limits, stock pistons become the weak link in your engine's reliability. The WSM Piston Kit delivers OEM-quality construction with measurable performance gains through advanced materials and engineering—giving you the...09103490- SKU:
- 09103490
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BORE - OVERSIZE:
- +0,50 MM
- MODEL:
- ORIGINAL
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 69.00 MM
- PISTON MATERIAL:
- ALUMINUM
$98.62Qty in Cart: 0Quantity:Price:$98.62Subtotal: -
WSM Piston Kit - Honda 250 - +.75 mm 50-229-06K
WSM
$98.62If you're pushing your Honda 250 to the limit, factory pistons won't cut it. WSM's +.75 mm piston kit delivers OEM-equivalent quality with engineering upgrades specifically designed to handle higher RPMs, reduce friction, and extend engine life. The...09103491- SKU:
- 09103491
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- BORE - OVERSIZE:
- +0,75 MM
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 69.75 MM
- MODEL:
- ORIGINAL
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +0.75 MM
- PISTON MATERIAL:
- ALUMINUM
$98.62Qty in Cart: 0Quantity:Price:$98.62Subtotal: -
WSM Piston Kit - Honda 400 - Standard 50-230K
WSM
$128.23If you're rebuilding a Honda 400 engine, piston quality directly impacts reliability, longevity, and power output. WSM's piston kit delivers OEM-equivalent construction with critical performance upgrades—specifically the MOS2 coating on the skirts, which...09103493- SKU:
- 09103493
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- PISTON MATERIAL:
- ALUMINUM
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- MODEL:
- ORIGINAL
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 85.00 MM
$128.23Qty in Cart: 0Quantity:Price:$128.23Subtotal: -
WSM Piston Kit - Honda 400 - +.25 mm 50-230-04K
WSM
$134.64When you're building or rebuilding a high-performance Honda 400 engine, OEM pistons won't cut it if you're chasing reliability under boost or sustained RPM. The WSM Piston Kit delivers OEM-equivalent quality with purpose-built enhancements—tighter...09103494- SKU:
- 09103494
- Availability:
- Ships Same Business Day
- Weight:
- 0.76 LBS
- BORE - OVERSIZE METRIC:
- +0.25 MM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- BORE - OVERSIZE:
- +0,25 MM
- BORE SIZE METRIC:
- 85.25 MM
- PISTON MATERIAL:
- ALUMINUM
- MODEL:
- ORIGINAL
- RIDING STYLE:
- ATV
$134.64Qty in Cart: 0Quantity:Price:$134.64Subtotal: -
WSM Piston Kit - Kawasaki 220 - Standard 50-250K
WSM
$98.62Stock pistons wear down with aggressive riding and tuning, leading to compression loss, increased blow-by, and reduced power output. The WSM Piston Kit for your Kawasaki 220 delivers OEM-matching quality with thermal engineering upgrades that reduce...09103498- SKU:
- 09103498
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PISTON MATERIAL:
- ALUMINUM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 67.00 MM
- MODEL:
- ORIGINAL
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$98.62Qty in Cart: 0Quantity:Price:$98.62Subtotal: -
WSM Piston Kit - Yamaha 80 - +.25 mm 50-536-04K
WSM
$56.00If you're running a Yamaha 80 at the edge of its limits, piston longevity and ring stability become critical. The WSM Piston Kit delivers OEM-equivalent construction with factory-exceeding durability through advanced materials and thermal...09103535- SKU:
- 09103535
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- BORE - OVERSIZE:
- +0,25 MM
- BORE - OVERSIZE METRIC:
- +0.25 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- BORE SIZE METRIC:
- 47.25 MM
- MODEL:
- ORIGINAL
- PISTON MATERIAL:
- ALUMINUM
$56.00Qty in Cart: 0Quantity:Price:$56.00Subtotal: -
WSM Piston Assembly 50-520-645
WSM
$148.37If you're running a high-displacement Banshee build, piston failure isn't an option—it's a catastrophe. The WSM Piston Assembly 50-520-645 is engineered specifically for forced induction and aggressive porting, delivering the durability and heat...09100259- SKU:
- 09100259
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE SIZE METRIC:
- 64.50 MM
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- STANDARD BORE
$148.37Qty in Cart: 0Quantity:Price:$148.37Subtotal: -
VERTEX Piston Kit - Standard 23234200
VERTEX
$256.95VERTEX pistons are engineered for engines that demand reliability under sustained high RPM and extreme combustion pressures. The T-5 heat treatment cycle ensures your pistons won't fail when it matters most—whether you're chasing lap times or building...09101068- 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
$256.95Qty in Cart: 0Quantity:Price:$256.95Subtotal:
