Dirt Bike Engine
Explore our selection for dirt bike parts for adding horsepower or reliability to a dirt bike's engine. We feature engine parts from Wiseco, Vertex, and more common engine part manufacturers. Get new pistons and gasket kits for re-freshening engines to withstand any conditions you put your bike through!
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On Sale
ATHENA Piston Kit S4F04500001A
ATHENA
MSRP: $141.95Now: $127.76Was: $141.95ATHENA Piston Kit S4F04500001ATwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...09102531- SKU:
- 09102531
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- COMPRESSION RATIO IMPERIAL:
- STOCK
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 44.96 MM
- PISTON HEAD SHAPE:
- DOMED
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 65 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- TYPE:
- A
MSRP: $141.95Now: $127.76Was: $141.95 -
On Sale
VERTEX Piston Kit 23378B
VERTEX
MSRP: $247.95Now: $227.66Was: $252.95VERTEX Piston Kit 23378BAll pistons are heat treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life, Cast piston kits are gravity...09102099- SKU:
- 09102099
- Availability:
- Ships Same Business Day
- Weight:
- 1.07 LBS
- DISPLACEMENT:
- 450 CC
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 95.97 MM
- COMPRESSION RATIO IMPERIAL:
- 12.9:1
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $247.95Now: $227.66Was: $252.95 -
On Sale
VERTEX Piston Kit 23198B
VERTEX
MSRP: $236.95Now: $217.76Was: $243.95VERTEX Piston Kit 23198BAll pistons are heat treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life, Cast piston kits are gravity...09102091- SKU:
- 09102091
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
MSRP: $236.95Now: $217.76Was: $243.95 -
On Sale
VERTEX Piston Kit 23564B
VERTEX
MSRP: $209.95Now: $192.56Was: $215.95VERTEX Piston Kit 23564BAll pistons are heat treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life, Cast piston kits are gravity...09102085- SKU:
- 09102085
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
MSRP: $209.95Now: $192.56Was: $215.95 -
On Sale
VERTEX Piston Kit 22216A
VERTEX
MSRP: $150.95Now: $138.56Was: $153.95VERTEX Piston Kit 22216AAll pistons are heat treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life, Cast piston kits are gravity...09102077- SKU:
- 09102077
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 53.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- DISPLACEMENT:
- 125 CC
MSRP: $150.95Now: $138.56Was: $153.95 -
On Sale
VERTEX Piston Kit 23205500
VERTEX
MSRP: $150.95Now: $138.56Was: $153.95VERTEX Piston Kit 23205500All pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09102076- SKU:
- 09102076
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 53.00 MM
- STYLE:
- CAST BIG BORE
- UNITS:
- KIT
- BORE - OVERSIZE:
- +5,00 MM
- BORE - OVERSIZE METRIC:
- +5.00 MM
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 103 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- PISTON DIAMETER METRIC:
- 52.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $150.95Now: $138.56Was: $153.95 -
On Sale
VERTEX Piston Kit - Standard 22521B
VERTEX
MSRP: $193.95Now: $178.16Was: $198.95VERTEX Piston Kit Standard 22521BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09101059- SKU:
- 09101059
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON DIAMETER METRIC:
- 66.36 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 66.40 MM
- DISPLACEMENT:
- 250 CC
MSRP: $193.95Now: $178.16Was: $198.95 -
On Sale
VERTEX Piston Kit - Standard 22712B
VERTEX
MSRP: $128.95Now: $118.76Was: $132.95VERTEX Piston Kit Standard 22712BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09101056- SKU:
- 09101056
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- PISTON DIAMETER METRIC:
- 53.96 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
- DISPLACEMENT:
- 125 CC
MSRP: $128.95Now: $118.76Was: $132.95 -
On Sale
VERTEX Piston Kit - Standard 22498B
VERTEX
MSRP: $144.95Now: $133.16Was: $148.95VERTEX Piston Kit Standard 22498BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09101055- SKU:
- 09101055
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- PISTON DIAMETER METRIC:
- 53.96 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 125 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST RACE
MSRP: $144.95Now: $133.16Was: $148.95 -
On Sale
VERTEX Piston Kit - Standard 22245B
VERTEX
MSRP: $128.95Now: $118.76Was: $131.95VERTEX Piston Kit Standard 22245BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09101054- SKU:
- 09101054
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 125 CC
- ENGINE TYPE:
- 2-STROKE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON DIAMETER METRIC:
- 53.96 MM
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
MSRP: $128.95Now: $118.76Was: $131.95 -
On Sale
VERTEX Piston Kit - Standard 22248B
VERTEX
MSRP: $128.95Now: $118.76Was: $131.95VERTEX Piston Kit Standard 22248BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09101053- SKU:
- 09101053
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- PISTON DIAMETER METRIC:
- 53.96 MM
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 125 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- STYLE:
- CAST REPLICA
MSRP: $128.95Now: $118.76Was: $131.95 -
On Sale
VERTEX Piston Kit - Standard 22499B
VERTEX
MSRP: $96.95Now: $89.06Was: $99.95VERTEX Piston Kit Standard 22499BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09101023- SKU:
- 09101023
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON DIAMETER METRIC:
- 46.95 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 47.00 MM
- DISPLACEMENT:
- 80 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
MSRP: $96.95Now: $89.06Was: $99.95 -
On Sale
VERTEX Piston Kit 23381B
VERTEX
MSRP: $268.95Now: $246.56Was: $275.95VERTEX Piston Kit 23381BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09101020- SKU:
- 09101020
- Availability:
- Ships Same Business Day
- Weight:
- 0.92 LBS
MSRP: $268.95Now: $246.56Was: $275.95 -
On Sale
VERTEX Piston Kit 22942B
VERTEX
MSRP: $268.95Now: $246.56Was: $275.95VERTEX Piston Kit 22942BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09101017- SKU:
- 09101017
- Availability:
- Ships Same Business Day
- Weight:
- 0.92 LBS
MSRP: $268.95Now: $246.56Was: $275.95 -
On Sale
VERTEX Piston Kit 23379B
VERTEX
MSRP: $247.95Now: $227.66Was: $254.95VERTEX Piston Kit 23379BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09101012- SKU:
- 09101012
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
MSRP: $247.95Now: $227.66Was: $254.95 -
On Sale
VERTEX Piston Kit 23329B
VERTEX
MSRP: $247.95Now: $227.66Was: $254.95VERTEX Piston Kit 23329BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09101007- SKU:
- 09101007
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
MSRP: $247.95Now: $227.66Was: $254.95 -
On Sale
VERTEX Piston Kit 23235A
VERTEX
MSRP: $247.95Now: $227.66Was: $254.95VERTEX Piston Kit 23235AAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09101004- SKU:
- 09101004
- Availability:
- Ships Same Business Day
- Weight:
- 0.58 LBS
MSRP: $247.95Now: $227.66Was: $254.95 -
On Sale
VERTEX Piston Kit - Standard 22541B
VERTEX
MSRP: $247.95Now: $227.66Was: $254.95VERTEX Piston Kit Standard 22541BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09101003- SKU:
- 09101003
- Availability:
- Ships Same Business Day
- Weight:
- 0.93 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON DIAMETER METRIC:
- 77.95 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- CYLINDER DIAMETER METRIC:
- 78.00 MM
- DISPLACEMENT:
- 360 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
MSRP: $247.95Now: $227.66Was: $254.95 -
On Sale
VERTEX Piston Kit 22925B
VERTEX
MSRP: $198.95Now: $182.66Was: $203.95VERTEX Piston Kit 22925BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09100992- SKU:
- 09100992
- Availability:
- Ships Same Business Day
- Weight:
- 0.61 LBS
- CYLINDER DIAMETER METRIC:
- 64.00 MM
- DISPLACEMENT:
- 200 CC
- PRODUCT NAME:
- PISTON KIT
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 63.95 MM
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
MSRP: $198.95Now: $182.66Was: $203.95 -
On Sale
ATHENA Piston Kit S5F08300005B
ATHENA
MSRP: $243.95Now: $219.56Was: $243.95ATHENA Piston Kit S5F08300005BTwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...09100884- SKU:
- 09100884
- Availability:
- Ships Same Business Day
- Weight:
- 0.61 LBS
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- B
- BORE SIZE METRIC:
- 82.96 MM
- COMPRESSION RATIO IMPERIAL:
- STOCK
- PISTON HEAD SHAPE:
- DOMED
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $243.95Now: $219.56Was: $243.95
