Dirt Bike Engine
Discover a full range of dirt bike engine components for rebuilding or upgrading your performance. From crankshafts to cylinder heads and piston kits, these precision-engineered components ensure reliable performance. For additional upgrades, check out our full selection of off-road dirt bike parts.
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PROX Ring Set 02.3122
PROX
$24.95PROX Ring Set 02.3122Manufactured in Japan and designed as OEM replacements09120051- SKU:
- 09120051
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- UNITS:
- SET
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
$24.95Qty in Cart: 0Quantity:Price:$24.95Subtotal: -
PROX Ring Set 02.1402
PROX
$54.95PROX Ring Set 02.1402Manufactured in Japan and designed as OEM replacements09120047- SKU:
- 09120047
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- SET
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
$54.95 -
ATHENA Piston Ring Set - Standard S41316408
ATHENA
$78.95ATHENA Piston Ring Set Standard S41316408Replacement rings for Athena Forged Pistons09120026- SKU:
- 09120026
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- BORE SIZE METRIC:
- 94.95 MM
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- ATV
$78.95Qty in Cart: 0Quantity:Price:$78.95Subtotal: -
ATHENA Piston Ring Set - Standard S41316016
ATHENA
$34.95ATHENA Piston Ring Set Standard S41316016Replacement rings for Athena Forged Pistons09120021- SKU:
- 09120021
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- BORE SIZE METRIC:
- 71.93 MM
- PISTON MATERIAL:
- FORGED
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
$34.95Qty in Cart: 0Quantity:Price:$34.95Subtotal: -
JE PISTONS Piston Kit 379030
JE PISTONS
$314.99JE PISTONS Piston Kit 379030Machined from 2618-T6 high tensile forged aluminum, Dome/ dish features smooth flowing radii; require no deburring or preparation, JE designs are specifically engineered for extreme applications including professional...09106391- SKU:
- 09106391
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BORE SIZE METRIC:
- 78.00 MM
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 14.5:1
- BORE - OVERSIZE:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$314.99 -
JE PISTONS Piston Kit 379029
JE PISTONS
$314.99JE PISTONS Piston Kit 379029Machined from 2618-T6 high tensile forged aluminum, Dome/ dish features smooth flowing radii; require no deburring or preparation, JE designs are specifically engineered for extreme applications including professional...09106390- SKU:
- 09106390
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BORE SIZE METRIC:
- 78.00 MM
- COMPRESSION RATIO IMPERIAL:
- 14.1:1
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$314.99 -
JE PISTONS Piston Kit 323898
JE PISTONS
$329.99JE PISTONS Piston Kit 323898Machined 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...09105934- SKU:
- 09105934
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- BORE SIZE METRIC:
- 95.00 MM
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- PISTON HEAD SHAPE:
- DOMED
- STYLE:
- JE PISTON
- TYPE:
- FORGED SIDE RELIEF DESIGN
- UNITS:
- KIT
$329.99 -
JE PISTONS Piston Kit 284667
JE PISTONS
$329.99JE PISTONS Piston Kit 284667Machined 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...09105890- SKU:
- 09105890
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- PISTON HEAD SHAPE:
- DOMED
- TYPE:
- FORGED SIDE RELIEF DESIGN
- BORE - OVERSIZE:
- STANDARD
- BORE SIZE METRIC:
- 96.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- PRO SERIES
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- DISPLACEMENT:
- 449 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$329.99 -
JE PISTONS Piston Kit 274759
JE PISTONS
$309.99JE PISTONS Piston Kit 274759Machined 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...09105888- SKU:
- 09105888
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- BORE - OVERSIZE:
- +4,00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- PISTON HEAD SHAPE:
- FLAT TOP
- STYLE:
- JE PISTON
- TYPE:
- FORGED SIDE RELIEF DESIGN
- UNITS:
- KIT
- BORE SIZE METRIC:
- 100.00 MM
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 488 CC
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE METRIC:
- +4.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
$309.99 -
JE PISTONS Piston Kit 274756
JE PISTONS
$309.99JE PISTONS Piston Kit 274756Machined 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...09105887- SKU:
- 09105887
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- PISTON HEAD SHAPE:
- DOMED
- STYLE:
- JE PISTON
- TYPE:
- FORGED SIDE RELIEF DESIGN
- BORE - OVERSIZE:
- STANDARD
- BORE SIZE METRIC:
- 96.00 MM
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 449 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
$309.99 -
JE PISTONS Piston Kit 274755
JE PISTONS
$309.99JE PISTONS Piston Kit 274755Machined 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...09105886- SKU:
- 09105886
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- PISTON HEAD SHAPE:
- DOMED
- TYPE:
- FORGED SIDE RELIEF DESIGN
- DISPLACEMENT:
- 449 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- BORE SIZE METRIC:
- 96.00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- JE PISTON
- BORE - OVERSIZE METRIC:
- STANDARD
$309.99 -
JE PISTONS Piston Kit 247940
JE PISTONS
$299.99JE PISTONS Piston Kit 247940Machined 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...09105858- SKU:
- 09105858
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE - OVERSIZE METRIC:
- +3.00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.0:1
- DISPLACEMENT:
- 270 CC
- PISTON HEAD SHAPE:
- DISHED
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- BORE SIZE METRIC:
- 80.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- STYLE:
- JE PISTON
- TYPE:
- FORGED SIDE RELIEF DESIGN
- BORE - OVERSIZE:
- +3,00 MM
- RIDING STYLE:
- OFF-ROAD
$299.99 -
JE PISTONS Piston Kit 247937
JE PISTONS
$309.99JE PISTONS Piston Kit 247937Machined 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...09105857- SKU:
- 09105857
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- PISTON HEAD SHAPE:
- DOMED
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 249 CC
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- STYLE:
- JE PISTON
- TYPE:
- FORGED SIDE RELIEF DESIGN
- BORE SIZE METRIC:
- 77.00 MM
$309.99 -
JE PISTONS Piston Kit 199656
JE PISTONS
$309.99JE PISTONS Piston Kit 199656Machined 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...09105829- SKU:
- 09105829
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- BORE - OVERSIZE:
- +2,00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
- RIDING STYLE:
- ATV
- BORE - OVERSIZE METRIC:
- +2.00 MM
- DISPLACEMENT:
- 415 CC
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- JE PISTON
- BORE SIZE METRIC:
- 87.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PISTON HEAD SHAPE:
- DOMED
- TYPE:
- ROUND FORGED DESIGN
$309.99 -
Wossner Piston Kit 46.95mm Honda CR80R 1992-2002 8237DA
WOSSNER
$112.00WOSSNER Piston Kit 8237DA Experience unparalleled performance with the WOSSNER Piston Kit 8237DA, meticulously engineered for 2-stroke engines. Crafted from high-quality materials and designed for durability, this piston kit enhances efficiency while...09105581- SKU:
- 09105581
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SINGLE RING
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- DISPLACEMENT:
- 80 CC
- PISTON SIZE METRIC:
- 46.95 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 47.00 MM
- MODEL:
- STANDARD SERIES
- PRODUCT NAME:
- PISTON KIT
$112.00 -
Wossner Piston Kit 47.45mm Yamaha PW80 1983-2006 8233D050
WOSSNER
$112.00WOSSNER Piston Kit 8233D050 Experience unparalleled performance with the WOSSNER Piston Kit 8233D050, designed specifically for 2-stroke engines. Crafted from premium materials and engineered in Germany, this piston kit ensures optimal efficiency and...09105579- SKU:
- 09105579
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BORE - OVERSIZE:
- +0,50 MM
- BORE SIZE METRIC:
- 47.50 MM
- DISPLACEMENT:
- 79 CC
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SINGLE RING
- UNITS:
- KIT
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE METRIC:
- +0.50 MM
- PISTON SIZE METRIC:
- 47.45 MM
- MODEL:
- STANDARD SERIES
- PRODUCT NAME:
- PISTON KIT
$112.00 -
Wossner Piston Kit KTM 125 2007-2025 8210DA
WOSSNER
$132.00WOSSNER Piston Kit 8210DA Elevate your engine's performance with the WOSSNER Piston Kit 8210DA, expertly crafted for 2-stroke applications. Each kit includes a precision-engineered piston, rings, pin, and clips, designed to enhance efficiency and power...09105577- SKU:
- 09105577
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- BORE SIZE METRIC:
- 56.00 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 124 CC
- PISTON MATERIAL:
- FORGED
- UNITS:
- KIT
- PISTON SIZE METRIC:
- 55.94 MM
- TYPE:
- DUAL RING
- MODEL:
- STANDARD SERIES
- PRODUCT NAME:
- PISTON KIT
$132.00 -
Wossner Piston Kit Kawasaki KX250 1978-1986 8203DA
WOSSNER
$152.00WOSSNER Piston Kit 8203DA Experience enhanced performance and reliability with the WOSSNER Piston Kit 8203DA, designed specifically for 2-stroke engines. Crafted with precision engineering, this piston kit ensures optimal efficiency and durability,...09105575- SKU:
- 09105575
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- BORE - OVERSIZE:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 70.00 MM
- MODEL:
- STANDARD SERIES
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON SIZE METRIC:
- 69.94 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- DUAL RING
$152.00 -
Wossner Piston Kit 1984-1985 Kawasaki KX80 8201DA
WOSSNER
$122.00WOSSNER Piston Kit 8201DA Experience unparalleled performance with the WOSSNER Piston Kit 8201DA, designed specifically for 2-stroke engines. Engineered with precision and crafted from high-quality materials, this piston kit enhances your engine's...09105574- SKU:
- 09105574
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 48.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- TYPE:
- DUAL RING
- ENGINE TYPE:
- 2-STROKE
- PISTON SIZE METRIC:
- 47.95 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- MODEL:
- STANDARD SERIES
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 82 CC
$122.00 -
Wossner Piston Kit KTM 65 SX 2000-2008 8198DA
WOSSNER
$102.00WOSSNER Piston Kit 8198DA Elevate your engine's performance with the WOSSNER Piston Kit 8198DA, meticulously engineered for 2-stroke applications. Crafted from premium materials, this piston kit is designed to enhance efficiency and reduce friction,...09105573- SKU:
- 09105573
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 45.00 MM
- PISTON MATERIAL:
- FORGED
- PISTON SIZE METRIC:
- 44.96 MM
- MODEL:
- STANDARD SERIES
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 64 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- SINGLE RING
- UNITS:
- KIT
$102.00
