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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Dirt Bike Cams and Parts
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Dirt Bike Connecting Rods and Parts
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Dirt Bike Crankcases and Parts
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Dirt Bike Crankshafts and Parts
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Dirt Bike Cylinder Heads and Parts
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Dirt Bike Cylinders and Parts
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Dirt Bike Engine Bearings
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Dirt Bike Engine Covers
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Dirt Bike Engine Gaskets and Kits
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Dirt Bike Engine Rebuild Kits
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Dirt Bike Engine Seals - Orings and Kits
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Dirt Bike Engine Valves and Parts
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Dirt Bike Flywheel and Rod Assemblies
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Dirt Bike Fuel Filters
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Dirt Bike Miscellaneous Engine Parts
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Dirt Bike Oil Coolers
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Dirt Bike Oil Filters
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Dirt Bike Oil Lines
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Dirt Bike Oil Pumps
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Dirt Bike Piston and Ring Kits
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Dirt Bike Piston Rings Only
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Dirt Bike Wrist Pins and Circlips
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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On Sale
VERTEX Piston Kit 24188B
VERTEX
MSRP: $268.95Now: $246.56Was: $273.95VERTEX Piston Kit 24188BAll 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, Forged pistons are forged from...9104663- SKU:
- 9104663
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- COMPRESSION RATIO IMPERIAL:
- 14.4:1
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 450 CC
- PISTON DIAMETER METRIC:
- 95.97 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $268.95Now: $246.56Was: $273.95 -
On Sale
VERTEX Piston Kit 24188C
VERTEX
MSRP: $228.95Now: $206.06Was: $228.95VERTEX Piston Kit 24188CAll 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, Forged pistons are forged from...9104664- SKU:
- 9104664
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- DISPLACEMENT:
- 450 CC
- PISTON DIAMETER METRIC:
- 95.98 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- 14.4:1
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
MSRP: $228.95Now: $206.06Was: $228.95 -
On Sale
VERTEX Piston Kit 24189A
VERTEX
Now: $325.67Was: $361.85VERTEX Piston Kit 24189AAll 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, Forged pistons are forged from...9104666- SKU:
- 9104666
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 13.9:1
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- GP RACER'S CHOICE
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- PISTON DIAMETER METRIC:
- 95.96 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
Now: $325.67Was: $361.85 -
On Sale
VERTEX Piston Kit 24189B
VERTEX
MSRP: $322.95Now: $296.06Was: $328.95VERTEX Piston Kit 24189BAll 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, Forged pistons are forged from...9104667- SKU:
- 9104667
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.9:1
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 95.97 MM
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- GP RACER'S CHOICE
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $322.95Now: $296.06Was: $328.95 -
On Sale
VERTEX Piston Kit 24189C
VERTEX
MSRP: $265.95Now: $239.36Was: $265.95VERTEX Piston Kit 24189CAll 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, Forged pistons are forged from...9104668- SKU:
- 9104668
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 13.9:1
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- PISTON DIAMETER METRIC:
- 95.98 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- GP RACER'S CHOICE
MSRP: $265.95Now: $239.36Was: $265.95 -
On Sale
VERTEX Piston Kit 24267B
VERTEX
MSRP: $209.95Now: $192.56Was: $213.95VERTEX Piston Kit 24267BAll 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...9105175- SKU:
- 9105175
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
MSRP: $209.95Now: $192.56Was: $213.95 -
On Sale
VERTEX Piston Kit 24268A
VERTEX
MSRP: $236.95Now: $217.76Was: $241.95VERTEX Piston Kit 24268AAll 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...9105178- SKU:
- 9105178
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- 14.3:1
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 76.95 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 250 CC
MSRP: $236.95Now: $217.76Was: $241.95 -
On Sale
VERTEX Piston Kit 24268B
VERTEX
MSRP: $236.95Now: $217.76Was: $241.95VERTEX Piston Kit 24268BAll 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...9105179- SKU:
- 9105179
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- COMPRESSION RATIO IMPERIAL:
- 14.3:1
- PISTON DIAMETER METRIC:
- 76.96 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
MSRP: $236.95Now: $217.76Was: $241.95 -
On Sale
VERTEX Piston Kit 24268C
VERTEX
MSRP: $189.95Now: $170.96Was: $189.95VERTEX Piston Kit 24268CAll 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...9105180- SKU:
- 9105180
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
MSRP: $189.95Now: $170.96Was: $189.95Qty in Cart: 0Quantity:Price:MSRP: $189.95Now: $170.96Was: $189.95Subtotal: -
On Sale
VERTEX Piston Kit 24268D
VERTEX
MSRP: $189.95Now: $170.96Was: $189.95All 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 cast aluminum alloy (not...9105181- SKU:
- 9105181
- Weight:
- 8.00 LBS
MSRP: $189.95Now: $170.96Was: $189.95Qty in Cart: 0Quantity:Price:MSRP: $189.95Now: $170.96Was: $189.95Subtotal: -
On Sale
VERTEX Piston Kit 24269A
VERTEX
MSRP: $324.95Now: $297.86Was: $330.95VERTEX Piston Kit 24269AAll 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...9105182- SKU:
- 9105182
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- DISPLACEMENT:
- 250 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 76.95 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- GP RACER'S CHOICE
- COMPRESSION RATIO IMPERIAL:
- 13.9:1
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $324.95Now: $297.86Was: $330.95 -
On Sale
VERTEX Piston Kit 24269B
VERTEX
MSRP: $313.95Now: $287.96Was: $319.95VERTEX Piston Kit 24269BAll 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...9105183- SKU:
- 9105183
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- GP RACER'S CHOICE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 13.9:1
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 76.96 MM
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $313.95Now: $287.96Was: $319.95Qty in Cart: 0Quantity:Price:MSRP: $313.95Now: $287.96Was: $319.95Subtotal: -
On Sale
VERTEX Piston Kit 24269C
VERTEX
MSRP: $249.95Now: $224.96Was: $249.95VERTEX Piston Kit 24269CAll 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...9105184- SKU:
- 9105184
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- GP RACER'S CHOICE
- DISPLACEMENT:
- 250 CC
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- PISTON DIAMETER METRIC:
- 76.97 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- COMPRESSION RATIO IMPERIAL:
- 13.9:1
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $249.95Now: $224.96Was: $249.95 -
On Sale
VERTEX Piston Kit 24233C
VERTEX
MSRP: $171.95Now: $157.46Was: $174.95VERTEX Piston Kit 24233CAll 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...9105185- SKU:
- 9105185
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 58.00 MM
- PISTON DIAMETER METRIC:
- 57.96 MM
- STYLE:
- CAST RACE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- DISPLACEMENT:
- 144 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $171.95Now: $157.46Was: $174.95 -
On Sale
VERTEX Piston Kit 24142A
VERTEX
MSRP: $268.95Now: $246.56Was: $273.95VERTEX Piston Kit 24142AAll 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...9105186- SKU:
- 9105186
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- COMPRESSION RATIO IMPERIAL:
- 14.4:1
- PISTON DIAMETER METRIC:
- 80.96 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE METRIC:
- +3.00 MM
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- BORE - OVERSIZE:
- +3,00 MM
- CYLINDER DIAMETER METRIC:
- 81.00 MM
- DISPLACEMENT:
- 270 CC
- STYLE:
- FORGED BIG BORE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $268.95Now: $246.56Was: $273.95 -
On Sale
VERTEX Piston Kit 24270A
VERTEX
MSRP: $225.95Now: $206.96Was: $229.95VERTEX Piston Kit 24270AAll 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...9105191- SKU:
- 9105191
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
MSRP: $225.95Now: $206.96Was: $229.95 -
On Sale
VERTEX Piston Kit 24270B
VERTEX
MSRP: $225.95Now: $206.96Was: $229.95VERTEX Piston Kit 24270BAll 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...9105192- SKU:
- 9105192
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
MSRP: $225.95Now: $206.96Was: $229.95 -
On Sale
VERTEX Piston Kit - High Compression 23963C
VERTEX
MSRP: $265.95Now: $239.36Was: $265.95VERTEX Piston Kit High Compression 23963CAll 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 life9103413- SKU:
- 9103413
- Availability:
- Ships Same Business Day
- Weight:
- 0.53 LBS
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- DISPLACEMENT:
- 250 CC
- PISTON DIAMETER METRIC:
- 76.78 MM
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- 14.6:1
- CYLINDER DIAMETER METRIC:
- 76.80 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $265.95Now: $239.36Was: $265.95 -
On Sale
VERTEX Piston Kit - Stroker 23879A
VERTEX
MSRP: $144.95Now: $133.16Was: $147.95VERTEX Piston Kit Stroker 23879AAll 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 life9103677- SKU:
- 9103677
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST STROKER
- CYLINDER DIAMETER METRIC:
- 52.00 MM
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 51.95 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- DISPLACEMENT:
- 112 CC
- UNITS:
- KIT
MSRP: $144.95Now: $133.16Was: $147.95 -
On Sale
VERTEX Piston Kit VTKTC22983B
VERTEX
MSRP: $276.95Now: $249.26Was: $276.95VERTEX Piston Kit VTKTC22983BAll 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 life9103725- SKU:
- 9103725
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
MSRP: $276.95Now: $249.26Was: $276.95
