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
MILLENNIUM Piston Kit 13016
MILLENNIUM
MSRP: $269.95Now: $173.00Was: $269.954-stroke pistons are made using a double-bridged forging design, Lightweight pistons with the tightest piston-wall clearances in the industry give you a quieter running engine09105025- SKU:
- 09105025
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- PISTON MATERIAL:
- STEEL
- SKIRT COATING:
- MOLY COATED
- STYLE:
- BIG BORE
- BORE - OVERSIZE:
- +5,00 MM
- BORE - OVERSIZE METRIC:
- +5.00 MM
- RIDING STYLE:
- UTV
- RING MATERIAL:
- NITRIDE COATED
- BORE SIZE METRIC:
- 104.00 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
MSRP: $269.95Now: $173.00Was: $269.95 -
On Sale
MILLENNIUM Piston Kit K8897D500-2
MILLENNIUM
MSRP: $449.95Now: $288.00Was: $449.954-stroke pistons are made using a double-bridged forging design, Lightweight pistons with the tightest piston-wall clearances in the industry give you a quieter running engine09105026- SKU:
- 09105026
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- BORE SIZE METRIC:
- 98 MM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLY COATED
- STYLE:
- BIG BORE
- BORE - OVERSIZE:
- +5,00 MM
- BORE - OVERSIZE METRIC:
- +5.00 MM
- PISTON MATERIAL:
- STEEL
- RIDING STYLE:
- UTV
- RING MATERIAL:
- NITRIDE COATED
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- UNITS:
- KIT
MSRP: $449.95Now: $288.00Was: $449.95 -
On Sale
MILLENNIUM Piston Kit K8877D500-2
MILLENNIUM
MSRP: $449.95Now: $288.00Was: $449.954-stroke pistons are made using a double-bridged forging design, Lightweight pistons with the tightest piston-wall clearances in the industry give you a quieter running engine09105027- SKU:
- 09105027
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- BORE SIZE METRIC:
- 85.00 MM
- PRODUCT NAME:
- PISTON KIT
- RING MATERIAL:
- NITRIDE COATED
- SKIRT COATING:
- MOLY COATED
- STYLE:
- BIG BORE
- BORE - OVERSIZE:
- +5,00 MM
- BORE - OVERSIZE METRIC:
- +5.00 MM
- COMPRESSION RATIO IMPERIAL:
- 10.75:1
- PISTON MATERIAL:
- STEEL
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
- UNITS:
- KIT
MSRP: $449.95Now: $288.00Was: $449.95 -
JE PISTONS Piston Kit 252746
JE PISTONS
$309.99Machined from 2618-T6 high-tensile forged aluminum, Dome/dish features smooth flowing radii; requires no deburring or preparation, Specifically engineered for extreme applications including professional competition, Pro Series pistons available for...09105866- SKU:
- 09105866
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 13.9:1
- PISTON HEAD SHAPE:
- DOMED
- DISPLACEMENT:
- 474 CC
- WALL THICKNESS IMPERIAL:
- 0.160'
- BORE SIZE METRIC:
- 98.00 MM
- PRODUCT NAME:
- PISTON KIT
- WALL THICKNESS:
- 0,160'
$309.99 -
JE PISTONS Piston Kit 261527
JE PISTONS
$301.05Machined from 2618-T6 high-tensile forged aluminum, Dome/dish features smooth flowing radii; requires no deburring or preparation, Specifically engineered for extreme applications including professional competition, Pro Series pistons available for...09105867- SKU:
- 09105867
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- RIDING STYLE:
- ATV
- DISPLACEMENT:
- 686 CC
- WALL THICKNESS:
- 0,150'
- WALL THICKNESS IMPERIAL:
- 0.150'
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- BORE SIZE METRIC:
- 102.00 MM
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- PRODUCT NAME:
- PISTON KIT
$301.05 -
JE PISTONS Piston Kit 261528
JE PISTONS
$329.99Machined from 2618-T6 high-tensile forged aluminum, Dome/dish features smooth flowing radii; requires no deburring or preparation, Specifically engineered for extreme applications including professional competition, Pro Series pistons available for...09105868- SKU:
- 09105868
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- WALL THICKNESS:
- 0,150'
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- DISPLACEMENT:
- 686 CC
- BORE SIZE METRIC:
- 102.00 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- WALL THICKNESS IMPERIAL:
- 0.150'
$329.99 -
JE PISTONS Piston Kit 261546
JE PISTONS
$329.99Machined from 2618-T6 high-tensile forged aluminum, Dome/dish features smooth flowing radii; requires no deburring or preparation, Specifically engineered for extreme applications including professional competition, Pro Series pistons available for...09105869- SKU:
- 09105869
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- DISPLACEMENT:
- 449 CC
- PRODUCT NAME:
- PISTON KIT
- PISTON HEAD SHAPE:
- DOMED
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 94.00 MM
- WALL THICKNESS:
- 0,150'
- WALL THICKNESS IMPERIAL:
- 0.150'
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- UNITS:
- KIT
$329.99 -
JE PISTONS Piston Kit 261547
JE PISTONS
$329.99Machined from 2618-T6 high-tensile forged aluminum, Dome/dish features smooth flowing radii; requires no deburring or preparation, Specifically engineered for extreme applications including professional competition, Pro Series pistons available for...09105870- SKU:
- 09105870
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- PISTON HEAD SHAPE:
- DOMED
- WALL THICKNESS IMPERIAL:
- 0.150'
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- DISPLACEMENT:
- 449 CC
- UNITS:
- KIT
- BORE SIZE METRIC:
- 94.00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.8:1
- WALL THICKNESS:
- 0,150'
$329.99 -
JE PISTONS Piston Kit 300112
JE PISTONS
$329.99Machined from 2618-T6 high-tensile forged aluminum, Dome/dish features smooth flowing radii; requires no deburring or preparation, Specifically engineered for extreme applications including professional competition, Pro Series pistons available for...09105909- SKU:
- 09105909
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- DISPLACEMENT:
- 493 CC
- PRODUCT NAME:
- PISTON KIT
- WALL THICKNESS:
- 0,160'
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 100.00 MM
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- WALL THICKNESS IMPERIAL:
- 0.160'
$329.99 -
JE PISTONS Piston Kit 300177
JE PISTONS
$329.99Machined from 2618-T6 high-tensile forged aluminum, Dome/dish features smooth flowing radii; requires no deburring or preparation, Specifically engineered for extreme applications including professional competition, Pro Series pistons available for...09105911- SKU:
- 09105911
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- WALL THICKNESS:
- 0,150'
- UNITS:
- KIT
- BORE SIZE METRIC:
- 102.00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- DISPLACEMENT:
- 686 CC
- PISTON HEAD SHAPE:
- DOMED
- WALL THICKNESS IMPERIAL:
- 0.150'
$329.99 -
Wossner Piston Kit for Polaris Trail Blazer 250 1990-2005 8094D050
WOSSNER
$122.00Experience unparalleled performance with the WOSSNER Piston Kit 8094D050, designed specifically for 2-stroke engines. Crafted from premium 4032 T6 forged aluminum alloy, this piston kit enhances your engine's efficiency and longevity through advanced...09105510- SKU:
- 09105510
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE - OVERSIZE:
- +0,50 MM
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PISTON SIZE METRIC:
- 72.43 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- DISPLACEMENT:
- 244 CC
- BORE SIZE METRIC:
- 72.50 MM
- MODEL:
- STANDARD SERIES
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- DUAL RING
$122.00 -
Wossner Piston Kit Polaris 300 2x4 1994-1995 8095DA
WOSSNER
$122.00Experience unparalleled performance with the WOSSNER Piston Kit 8095DA, designed specifically for 2-stroke engines. This kit combines advanced engineering with high-quality materials to deliver superior power and efficiency. Elevate your engine's...09105515- SKU:
- 09105515
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- BORE - OVERSIZE:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- ATV
- ENGINE TYPE:
- 2-STROKE
- PISTON SIZE METRIC:
- 74.43 MM
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- DUAL RING
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 74.50 MM
- MODEL:
- STANDARD SERIES
- UNITS:
- KIT
- DISPLACEMENT:
- 283 CC
$122.00Qty in Cart: 0Quantity:Price:$122.00Subtotal: -
Wossner Piston Kit Yamaha YFZ350 Banshee 1987-2006 8075D150
WOSSNER
$132.00Experience unmatched performance with the WOSSNER Piston Kit 8075D150, expertly crafted for 2-stroke engines. This premium kit includes everything you need for a seamless installation, featuring a piston designed for optimal efficiency and durability...09104795- SKU:
- 09104795
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- BORE - OVERSIZE METRIC:
- +1.50 MM
- MODEL:
- STANDARD SERIES
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- BORE SIZE METRIC:
- 65.50 MM
- DISPLACEMENT:
- 347 CC
- PISTON SIZE METRIC:
- 65.44 MM
- TYPE:
- DUAL RING
- PISTON MATERIAL:
- FORGED
- UNITS:
- KIT
- BORE - OVERSIZE:
- +1,50 MM
- DISPLACEMENT:
- 398 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
$132.00 -
Wiseco Piston Kit for Honda TRX250R 1986 69.50mm PK1083
WISECO
$284.95Experience unmatched performance with the WISECO Piston Kit, designed for high-octane 2-cycle engines. Crafted from premium high-silicone forged aluminum, this kit ensures superior strength and minimal thermal expansion, making it ideal for...09030469- SKU:
- 09030469
- Availability:
- Ships Same Business Day
- Weight:
- 1.23 LBS
- BORE - OVERSIZE:
- +3,50 MM
- BORE - OVERSIZE METRIC:
- +3.50 MM
- DISPLACEMENT:
- 246 CC
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- BORE SIZE METRIC:
- 69.50 MM
- PISTON DIAMETER METRIC:
- 69.42 MM
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 72.00 MM
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- PRO-LITE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
$284.95 -
Wiseco Piston Kit +2.00 mm Yamaha Grizzly 700 2007-2010 4797M09700
WISECO
$224.95Enhance your engine's performance with the WISECO Piston Kit, designed specifically for Grizzly models. This high-quality piston kit offers a +2.00 mm increase, ensuring improved power and efficiency. Please note that the kit does not include a gasket...09100286- SKU:
- 09100286
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- BORE - OVERSIZE:
- +2,00 MM
- BORE SIZE METRIC:
- 97.00 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- COMPRESSION RATIO IMPERIAL:
- STOCK
- PISTON MATERIAL:
- ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 84.00 MM
- UNITS:
- EACH
- DISPLACEMENT:
- 621 CC
- BORE - OVERSIZE METRIC:
- +2.00 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
$224.95 -
JE PISTONS Piston Kit 247957
JE PISTONS
$309.99Machined from 2618-T6 high-tensile forged aluminum, Dome/dish features smooth flowing radii; requires no deburring or preparation, Specifically engineered for extreme applications including professional competition, Pro Series pistons available for...09105862- SKU:
- 09105862
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- PISTON HEAD SHAPE:
- DISHED
- WALL THICKNESS IMPERIAL:
- 0.160'
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- WALL THICKNESS:
- 0,160'
- BORE SIZE METRIC:
- 95.00 MM
- DISPLACEMENT:
- 449 CC
- UNITS:
- KIT
$309.99 -
JE PISTONS Piston Kit 252742
JE PISTONS
$309.99Machined from 2618-T6 high-tensile forged aluminum, Dome/dish features smooth flowing radii; requires no deburring or preparation, Specifically engineered for extreme applications including professional competition, Pro Series pistons available for...09105863- SKU:
- 09105863
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- BORE SIZE METRIC:
- 95.50 MM
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- WALL THICKNESS IMPERIAL:
- 0.160'
- DISPLACEMENT:
- 450 CC
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- WALL THICKNESS:
- 0,160'
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
$309.99 -
JE PISTONS Piston Kit 252743
JE PISTONS
$309.99Machined from 2618-T6 high-tensile forged aluminum, Dome/dish features smooth flowing radii; requires no deburring or preparation, Specifically engineered for extreme applications including professional competition, Pro Series pistons available for...09105864- SKU:
- 09105864
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- RIDING STYLE:
- ATV
- COMPRESSION RATIO IMPERIAL:
- 12.8:1
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- BORE SIZE METRIC:
- 95.50 MM
- WALL THICKNESS:
- 0,160'
- WALL THICKNESS IMPERIAL:
- 0.160'
- DISPLACEMENT:
- 450 CC
- PRODUCT NAME:
- PISTON KIT
$309.99 -
JE PISTONS Piston Kit 252744
JE PISTONS
$309.99Machined from 2618-T6 high-tensile forged aluminum, Dome/dish features smooth flowing radii; requires no deburring or preparation, Specifically engineered for extreme applications including professional competition, Pro Series pistons available for...09105865- SKU:
- 09105865
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 98.00 MM
- DISPLACEMENT:
- 474 CC
- PRODUCT NAME:
- PISTON KIT
- WALL THICKNESS:
- 0,160'
- WALL THICKNESS IMPERIAL:
- 0.160'
- COMPRESSION RATIO IMPERIAL:
- 12.8:1
- UNITS:
- KIT
- PISTON HEAD SHAPE:
- DOMED
$309.99 -
Wiseco Piston Kit Honda TRX400EX 1999-2008 85.5mm 11:1 4628M08550
WISECO
$224.95Upgrade your ATV's performance with the WISECO Piston Kit specifically designed for XR and TRX400 models. This high-quality piston kit is engineered for durability and enhanced power, ensuring your vehicle runs smoothly and efficiently. Please note that...09102831- SKU:
- 09102831
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- BORE - OVERSIZE:
- +0,50 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- DISPLACEMENT:
- 397 CC
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 70.00 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 85.50 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$224.95
