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 24165C
VERTEX
MSRP: $191.95Now: $172.76Was: $191.95VERTEX Piston Kit 24165CAll 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...9104671- SKU:
- 9104671
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
MSRP: $191.95Now: $172.76Was: $191.95Qty in Cart: 0Quantity:Price:MSRP: $191.95Now: $172.76Was: $191.95Subtotal: -
On Sale
VERTEX Piston Kit 24167A
VERTEX
MSRP: $265.95Now: $239.36Was: $265.95VERTEX Piston Kit 24167AAll 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...9104677- SKU:
- 9104677
- Availability:
- Ships Same Business Day
- Weight:
- 0.53 LBS
- COMPRESSION RATIO IMPERIAL:
- 14.7:1
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- GP RACER'S CHOICE
- DISPLACEMENT:
- 250 CC
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 76.95 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
MSRP: $265.95Now: $239.36Was: $265.95Qty in Cart: 0Quantity:Price:MSRP: $265.95Now: $239.36Was: $265.95Subtotal: -
On Sale
VERTEX Piston Kit 24167B
VERTEX
MSRP: $265.95Now: $239.36Was: $265.95VERTEX Piston Kit 24167BAll 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...9104678- SKU:
- 9104678
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
MSRP: $265.95Now: $239.36Was: $265.95Qty in Cart: 0Quantity:Price:MSRP: $265.95Now: $239.36Was: $265.95Subtotal: -
On Sale
VERTEX Piston Kit 24167C
VERTEX
MSRP: $265.95Now: $239.36Was: $265.95VERTEX Piston Kit 24167CAll 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...9104679- SKU:
- 9104679
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- COMPRESSION RATIO IMPERIAL:
- 14.7:1
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 76.97 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- GP RACER'S CHOICE
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- CYLINDER DIAMETER METRIC:
- 77.00 MM
MSRP: $265.95Now: $239.36Was: $265.95Qty in Cart: 0Quantity:Price:MSRP: $265.95Now: $239.36Was: $265.95Subtotal: -
On Sale
VERTEX Piston Kit 24273A
VERTEX
MSRP: $193.95Now: $178.16Was: $197.95VERTEX Piston Kit 24273AAll 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...9105128- SKU:
- 9105128
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
MSRP: $193.95Now: $178.16Was: $197.95 -
On Sale
VERTEX Piston Kit 24273B
VERTEX
MSRP: $198.98Now: $182.66Was: $202.95VERTEX Piston Kit 24273BAll 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...9105129- SKU:
- 9105129
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
MSRP: $198.98Now: $182.66Was: $202.95 -
On Sale
VERTEX Piston Kit 24209C
VERTEX
MSRP: $199.95Now: $179.96Was: $199.95VERTEX Piston Kit 24209CAll 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...9105151- SKU:
- 9105151
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
MSRP: $199.95Now: $179.96Was: $199.95 -
On Sale
VERTEX Piston Kit 24211A
VERTEX
MSRP: $268.95Now: $246.56Was: $273.95VERTEX Piston Kit 24211AAll 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...9105152- SKU:
- 9105152
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- PISTON DIAMETER METRIC:
- 94.95 MM
- CYLINDER DIAMETER METRIC:
- 95.00 MM
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 12.8:1
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $268.95Now: $246.56Was: $273.95 -
On Sale
VERTEX Piston Kit 24211B
VERTEX
MSRP: $268.95Now: $246.56Was: $273.95VERTEX Piston Kit 24211BAll 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...9105153- SKU:
- 9105153
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COMPRESSION RATIO IMPERIAL:
- 12.8:1
- PISTON DIAMETER METRIC:
- 94.96 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- STREET
- CYLINDER DIAMETER METRIC:
- 95.00 MM
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
MSRP: $268.95Now: $246.56Was: $273.95 -
On Sale
VERTEX Piston Kit 24211C
VERTEX
MSRP: $219.95Now: $197.96Was: $219.95VERTEX Piston Kit 24211CAll 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...9105154- SKU:
- 9105154
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COMPRESSION RATIO IMPERIAL:
- 12.8:1
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- DISPLACEMENT:
- 450 CC
- CYLINDER DIAMETER METRIC:
- 95.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 94.97 MM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
MSRP: $219.95Now: $197.96Was: $219.95 -
On Sale
VERTEX Piston Kit 23928A
VERTEX
MSRP: $155.95Now: $143.06Was: $158.95VERTEX Piston Kit 23928AAll 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...9105155- SKU:
- 9105155
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- DISPLACEMENT:
- 125 CC
- PRODUCT NAME:
- PISTON KIT
- PISTON DIAMETER METRIC:
- 53.94 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
- UNITS:
- KIT
MSRP: $155.95Now: $143.06Was: $158.95 -
On Sale
VERTEX Piston Kit 23928B
VERTEX
MSRP: $155.95Now: $143.06Was: $158.95VERTEX Piston Kit 23928BAll 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...9105156- SKU:
- 9105156
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- DISPLACEMENT:
- 125 CC
- PISTON DIAMETER METRIC:
- 53.95 MM
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
- UNITS:
- KIT
MSRP: $155.95Now: $143.06Was: $158.95 -
On Sale
VERTEX Piston Kit 23928C
VERTEX
MSRP: $144.95Now: $133.16Was: $147.95VERTEX Piston Kit 23928CAll 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...9105157- SKU:
- 9105157
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- DISPLACEMENT:
- 125 CC
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- PISTON DIAMETER METRIC:
- 53.96 MM
- PISTON MATERIAL:
- CAST
- STYLE:
- CAST REPLICA
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
MSRP: $144.95Now: $133.16Was: $147.95 -
On Sale
VERTEX Piston Kit 24243A
VERTEX
MSRP: $139.95Now: $128.66Was: $142.95VERTEX Piston Kit 24243AAll 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...9105159- SKU:
- 9105159
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST RACE
- DISPLACEMENT:
- 125 CC
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 53.94 MM
MSRP: $139.95Now: $128.66Was: $142.95 -
On Sale
VERTEX Piston Kit 24271A
VERTEX
MSRP: $247.95Now: $227.66Was: $252.95VERTEX Piston Kit 24271AAll 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...9105194- SKU:
- 9105194
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- CYLINDER DIAMETER METRIC:
- 97.00 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 96.95 MM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- 14.6:1
- DISPLACEMENT:
- 450 CC
MSRP: $247.95Now: $227.66Was: $252.95Qty in Cart: 0Quantity:Price:MSRP: $247.95Now: $227.66Was: $252.95Subtotal: -
On Sale
VERTEX Piston Kit 24271C
VERTEX
MSRP: $199.95Now: $179.96Was: $199.95VERTEX Piston Kit 24271CAll 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...9105196- SKU:
- 9105196
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 14.6:1
- CYLINDER DIAMETER METRIC:
- 97.00 MM
- PISTON DIAMETER METRIC:
- 96.97 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- DISPLACEMENT:
- 450 CC
- PRODUCT NAME:
- PISTON KIT
MSRP: $199.95Now: $179.96Was: $199.95 -
On Sale
VERTEX Piston Kit 24272A
VERTEX
MSRP: $301.95Now: $277.16Was: $307.95VERTEX Piston Kit 24272AAll 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...9105197- SKU:
- 9105197
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.3:1
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- PISTON DIAMETER METRIC:
- 96.95 MM
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 97.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- DISPLACEMENT:
- 450 CC
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- GP RACER'S CHOICE
MSRP: $301.95Now: $277.16Was: $307.95 -
On Sale
VERTEX Piston Kit 24272B
VERTEX
MSRP: $290.95Now: $267.26Was: $296.95VERTEX Piston Kit 24272BAll 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...9105198- SKU:
- 9105198
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.3:1
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 96.96 MM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- CYLINDER DIAMETER METRIC:
- 97.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- GP RACER'S CHOICE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 450 CC
MSRP: $290.95Now: $267.26Was: $296.95Qty in Cart: 0Quantity:Price:MSRP: $290.95Now: $267.26Was: $296.95Subtotal: -
On Sale
VERTEX Piston Kit 24272C
VERTEX
MSRP: $239.95Now: $215.96Was: $239.95VERTEX Piston Kit 24272CAll 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...9105199- SKU:
- 9105199
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.3:1
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 97.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- GP RACER'S CHOICE
- DISPLACEMENT:
- 450 CC
- PISTON DIAMETER METRIC:
- 96.97 MM
MSRP: $239.95Now: $215.96Was: $239.95 -
On Sale
VERTEX Piston Kit 24097B
VERTEX
MSRP: $247.95Now: $227.66Was: $252.95VERTEX Piston Kit 24097BAll 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 life9104077- SKU:
- 9104077
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
MSRP: $247.95Now: $227.66Was: $252.95
