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...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...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...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...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
$301.95Qty in Cart: 0Quantity:Price:$301.95Subtotal: -
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...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...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...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
$188.95Qty in Cart: 0Quantity:Price:$188.95Subtotal: -
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...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...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...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...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...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...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...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...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...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...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...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...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...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:
