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 23654C
VERTEX
MSRP: $212.95Now: $191.66Was: $212.95VERTEX Piston Kit 23654CAll 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 life9102061- SKU:
- 9102061
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE - OVERSIZE:
- +3,00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- PISTON DIAMETER METRIC:
- 79.97 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- STYLE:
- FORGED BIG BORE
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- DISPLACEMENT:
- 270 CC
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +3.00 MM
- PRODUCT NAME:
- PISTON KIT
MSRP: $212.95Now: $191.66Was: $212.95Qty in Cart: 0Quantity:Price:MSRP: $212.95Now: $191.66Was: $212.95Subtotal: -
On Sale
VERTEX Piston Kit - Standard 22652B
VERTEX
MSRP: $150.95Now: $138.56Was: $153.95VERTEX Piston Kit Standard 22652BAll 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 life9100945- SKU:
- 9100945
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- DISPLACEMENT:
- 125 CC
- PISTON DIAMETER METRIC:
- 53.96 MM
MSRP: $150.95Now: $138.56Was: $153.95 -
On Sale
VERTEX Piston Kit 22998B
VERTEX
MSRP: $150.95Now: $138.56Was: $153.95VERTEX Piston Kit 22998BAll 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 life9100946- SKU:
- 9100946
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- PISTON DIAMETER METRIC:
- 53.96 MM
- STYLE:
- CAST REPLICA
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- DISPLACEMENT:
- 125 CC
MSRP: $150.95Now: $138.56Was: $153.95 -
On Sale
VERTEX Piston Kit - Standard 22386B
VERTEX
MSRP: $188.95Now: $173.66Was: $192.95VERTEX Piston Kit Standard 22386BAll 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 life9100948- SKU:
- 9100948
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
- PISTON DIAMETER METRIC:
- 66.35 MM
- STYLE:
- CAST REPLICA
- CYLINDER DIAMETER METRIC:
- 66.40 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 250 CC
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
MSRP: $188.95Now: $173.66Was: $192.95 -
On Sale
VERTEX Piston Kit - Standard 22854B
VERTEX
MSRP: $188.95Now: $173.66Was: $192.95VERTEX Piston Kit Standard 22854BAll 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 life9100952- SKU:
- 9100952
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- CYLINDER DIAMETER METRIC:
- 66.40 MM
- DISPLACEMENT:
- 250 CC
- PISTON DIAMETER METRIC:
- 66.35 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- STYLE:
- CAST REPLICA
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $188.95Now: $173.66Was: $192.95Qty in Cart: 0Quantity:Price:MSRP: $188.95Now: $173.66Was: $192.95Subtotal: -
On Sale
VERTEX Piston Kit 22982B
VERTEX
MSRP: $209.95Now: $192.56Was: $213.95VERTEX Piston Kit 22982BAll 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...9100953- SKU:
- 9100953
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
MSRP: $209.95Now: $192.56Was: $213.95 -
On Sale
VERTEX Piston Kit - Standard 22500A
VERTEX
MSRP: $104.95Now: $94.46Was: $104.95VERTEX Piston Kit Standard 22500AAll 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 life9100960- SKU:
- 9100960
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 47.00 MM
- DISPLACEMENT:
- 80 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 46.95 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
MSRP: $104.95Now: $94.46Was: $104.95 -
On Sale
VERTEX Piston Kit - Standard 22441B
VERTEX
MSRP: $134.95Now: $124.16Was: $137.95VERTEX Piston Kit Standard 22441BAll 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 life9100963- SKU:
- 9100963
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 53.94 MM
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- STYLE:
- CAST REPLICA
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- DISPLACEMENT:
- 125 CC
MSRP: $134.95Now: $124.16Was: $137.95 -
On Sale
VERTEX Piston Kit - Standard 22520B
VERTEX
MSRP: $139.95Now: $128.66Was: $142.95VERTEX Piston Kit Standard 22520BAll 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 life9100964- SKU:
- 9100964
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- PISTON DIAMETER METRIC:
- 53.94 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 125 CC
- STYLE:
- CAST REPLICA
MSRP: $139.95Now: $128.66Was: $142.95 -
On Sale
VERTEX Piston Kit - Standard 23119B
VERTEX
MSRP: $127.95Now: $117.86Was: $130.95VERTEX Piston Kit Standard 23119BAll 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 life9100966- SKU:
- 9100966
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- DISPLACEMENT:
- 125 CC
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- STYLE:
- CAST REPLICA
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 53.94 MM
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $127.95Now: $117.86Was: $130.95 -
On Sale
VERTEX Piston Kit 23335A
VERTEX
MSRP: $161.95Now: $148.46Was: $164.95VERTEX Piston Kit 23335AAll 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 life9100967- SKU:
- 9100967
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE:
- +4,00 MM
- BORE - OVERSIZE METRIC:
- +4.00 MM
- DISPLACEMENT:
- 144 CC
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST BIG BORE
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 57.95 MM
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 58.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $161.95Now: $148.46Was: $164.95 -
On Sale
VERTEX Piston Kit - Standard 22154B
VERTEX
MSRP: $171.95Now: $157.46Was: $174.95VERTEX Piston Kit Standard 22154BAll 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 life9100968- SKU:
- 9100968
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
- CYLINDER DIAMETER METRIC:
- 68.00 MM
- DISPLACEMENT:
- 250 CC
- PISTON DIAMETER METRIC:
- 67.95 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
MSRP: $171.95Now: $157.46Was: $174.95 -
On Sale
VERTEX Piston Kit 22584B
VERTEX
MSRP: $149.95Now: $137.66Was: $152.95VERTEX Piston Kit 22584BAll 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...9100970- SKU:
- 9100970
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- CYLINDER DIAMETER METRIC:
- 66.40 MM
- COMPRESSION RATIO IMPERIAL:
- 13.4:1
- DISPLACEMENT:
- 250 CC
- PISTON DIAMETER METRIC:
- 66.35 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $149.95Now: $137.66Was: $152.95 -
On Sale
VERTEX Piston Kit 22805B
VERTEX
MSRP: $209.95Now: $192.56Was: $213.95VERTEX Piston Kit 22805BAll 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 life9100971- SKU:
- 9100971
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
MSRP: $209.95Now: $192.56Was: $213.95 -
On Sale
VERTEX Piston Kit 22951A
VERTEX
MSRP: $215.95Now: $197.96Was: $219.95VERTEX Piston Kit 22951AAll 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...9100978- SKU:
- 9100978
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
MSRP: $215.95Now: $197.96Was: $219.95 -
On Sale
VERTEX Piston Kit - Standard 22481CD
VERTEX
MSRP: $86.95Now: $80.06Was: $88.95VERTEX Piston Kit Standard 22481CDAll 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 life9100981- SKU:
- 9100981
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- DISPLACEMENT:
- 65 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 44.97 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
- CYLINDER DIAMETER METRIC:
- 45.00 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
MSRP: $86.95Now: $80.06Was: $88.95 -
On Sale
VERTEX Piston Kit 24275A
VERTEX
MSRP: $322.95Now: $296.06Was: $328.95VERTEX Piston Kit 24275AAll 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...9105131- SKU:
- 9105131
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- CYLINDER DIAMETER METRIC:
- 79 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- GP RACER'S CHOICE
- PISTON DIAMETER METRIC:
- 78.96 MM
- COMPRESSION RATIO IMPERIAL:
- 14.2:1
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $322.95Now: $296.06Was: $328.95 -
On Sale
VERTEX Piston Kit 24275B
VERTEX
MSRP: $322.95Now: $296.06Was: $328.95VERTEX Piston Kit 24275BAll 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...9105132- SKU:
- 9105132
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- COMPRESSION RATIO IMPERIAL:
- 14.2:1
- DISPLACEMENT:
- 250 CC
- PISTON DIAMETER METRIC:
- 78.97 MM
- CYLINDER DIAMETER METRIC:
- 79 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- GP RACER'S CHOICE
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $322.95Now: $296.06Was: $328.95 -
On Sale
VERTEX Piston Kit 24275C
VERTEX
MSRP: $265.95Now: $239.36Was: $265.95VERTEX Piston Kit 24275CAll 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...9105133- SKU:
- 9105133
- 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 24198A
VERTEX
MSRP: $279.95Now: $257.36Was: $285.95VERTEX Piston Kit 24198AAll 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...9105134- SKU:
- 9105134
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- BORE - OVERSIZE METRIC:
- +3.00 MM
- PISTON DIAMETER METRIC:
- 98.95 MM
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- UNITS:
- KIT
- DISPLACEMENT:
- 480 CC
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- STYLE:
- FORGED BIG BORE
- BORE - OVERSIZE:
- +3,00 MM
- CYLINDER DIAMETER METRIC:
- 99.00 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $279.95Now: $257.36Was: $285.95Qty in Cart: 0Quantity:Price:MSRP: $279.95Now: $257.36Was: $285.95Subtotal:
