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 23954C
VERTEX
MSRP: $265.95Now: $239.36Was: $265.95VERTEX Piston Kit 23954CAll 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 life9103353- SKU:
- 9103353
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 14.4:1
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 76.97 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 250 CC
MSRP: $265.95Now: $239.36Was: $265.95Qty in Cart: 0Quantity:Price:MSRP: $265.95Now: $239.36Was: $265.95Subtotal: -
On Sale
VERTEX Piston Kit 23943A
VERTEX
MSRP: $247.95Now: $227.66Was: $252.95VERTEX Piston Kit 23943AAll 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 life9103354- SKU:
- 9103354
- Availability:
- Ships Same Business Day
- Weight:
- 0.57 LBS
- BORE - OVERSIZE:
- +3,00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- BORE - OVERSIZE METRIC:
- +3.00 MM
- STYLE:
- FORGED BIG BORE
- PISTON DIAMETER METRIC:
- 79.96 MM
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- DISPLACEMENT:
- 270 CC
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
MSRP: $247.95Now: $227.66Was: $252.95 -
On Sale
VERTEX Piston Kit 23943B
VERTEX
MSRP: $247.95Now: $227.66Was: $252.95VERTEX Piston Kit 23943BAll 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 life9103355- SKU:
- 9103355
- Availability:
- Ships Same Business Day
- Weight:
- 0.57 LBS
- BORE - OVERSIZE METRIC:
- +3.00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 79.97 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- FORGED BIG BORE
- BORE - OVERSIZE:
- +3,00 MM
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- DISPLACEMENT:
- 270 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
MSRP: $247.95Now: $227.66Was: $252.95 -
On Sale
VERTEX Piston Kit 23943C
VERTEX
MSRP: $233.95Now: $210.56Was: $233.95All 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 life9103356- SKU:
- 9103356
- Weight:
- 9.00 LBS
MSRP: $233.95Now: $210.56Was: $233.95Qty in Cart: 0Quantity:Price:MSRP: $233.95Now: $210.56Was: $233.95Subtotal: -
On Sale
VERTEX Piston Kit with Gaskets VTK22189B
VERTEX
MSRP: $166.95Now: $150.26Was: $166.95VERTEX Piston Kit with Gaskets VTK22189BAll 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...9103357- SKU:
- 9103357
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- DISPLACEMENT:
- 125 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- RIDING STYLE:
- OFF-ROAD
- PISTON DIAMETER METRIC:
- 53.94 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- TOP END PISTON KIT
- UNITS:
- KIT
MSRP: $166.95Now: $150.26Was: $166.95 -
On Sale
VERTEX Piston Kit with Gaskets VTK22189B-1
VERTEX
MSRP: $166.95Now: $152.96Was: $169.95VERTEX Piston Kit with Gaskets VTK22189B-1All 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...9103358- SKU:
- 9103358
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- ENGINE TYPE:
- 2-STROKE
- STYLE:
- CAST REPLICA
- DISPLACEMENT:
- 125 CC
- PISTON MATERIAL:
- CAST
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- PISTON DIAMETER METRIC:
- 53.94 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- PRODUCT NAME:
- TOP END PISTON KIT
MSRP: $166.95Now: $152.96Was: $169.95 -
On Sale
VERTEX Piston Kit with Gaskets VTK22499B
VERTEX
MSRP: $134.95Now: $124.16Was: $137.95VERTEX Piston Kit with Gaskets VTK22499BAll 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...9103359- SKU:
- 9103359
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 47.00 MM
- DISPLACEMENT:
- 80 CC
- PRODUCT NAME:
- TOP END PISTON KIT
- STYLE:
- CAST REPLICA
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 46.95 MM
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $134.95Now: $124.16Was: $137.95 -
On Sale
VERTEX Piston Kit with Gaskets VTK22499B-1
VERTEX
MSRP: $134.95Now: $124.16Was: $137.95VERTEX Piston Kit with Gaskets VTK22499B-1All 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 High...9103360- SKU:
- 9103360
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 47.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- DISPLACEMENT:
- 80 CC
- PISTON DIAMETER METRIC:
- 46.95 MM
- PRODUCT NAME:
- TOP END PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- STYLE:
- CAST REPLICA
MSRP: $134.95Now: $124.16Was: $137.95 -
On Sale
VERTEX Piston Kit with Gaskets VTK22795B-1
VERTEX
MSRP: $236.95Now: $217.76Was: $241.95VERTEX Piston Kit with Gaskets VTK22795B-1All 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 High...9103361- SKU:
- 9103361
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 2-STROKE
- CYLINDER DIAMETER METRIC:
- 66.40 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PRODUCT NAME:
- TOP END PISTON KIT
- STYLE:
- CAST REPLICA
- PISTON DIAMETER METRIC:
- 66.36 MM
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $236.95Now: $217.76Was: $241.95 -
On Sale
VERTEX Piston Kit VTK22685C-1
VERTEX
MSRP: $166.95Now: $150.26Was: $166.95VERTEX Piston Kit VTK22685C-1All 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 life9103018- SKU:
- 9103018
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- PISTON DIAMETER METRIC:
- 53.94 MM
- PISTON MATERIAL:
- CAST
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- PRODUCT NAME:
- TOP END PISTON KIT
- STYLE:
- CAST REPLICA
- DISPLACEMENT:
- 125 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $166.95Now: $150.26Was: $166.95 -
On Sale
VERTEX Piston Kit VTK22685C
VERTEX
MSRP: $164.95Now: $148.46Was: $164.95VERTEX Piston Kit VTK22685CAll 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 life9103019- SKU:
- 9103019
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- DISPLACEMENT:
- 125 CC
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- TOP END PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- PISTON DIAMETER METRIC:
- 53.94 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
MSRP: $164.95Now: $148.46Was: $164.95 -
On Sale
VERTEX Piston Kit VTK22995B
VERTEX
MSRP: $168.95Now: $152.06Was: $168.95VERTEX Piston Kit VTK22995BAll 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 life9103020- SKU:
- 9103020
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- PRODUCT NAME:
- TOP END PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
- DISPLACEMENT:
- 125 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 53.93 MM
- PISTON MATERIAL:
- CAST
- UNITS:
- KIT
MSRP: $168.95Now: $152.06Was: $168.95 -
On Sale
VERTEX Piston Kit VTK23140C
VERTEX
MSRP: $168.95Now: $152.06Was: $168.95VERTEX Piston Kit VTK23140CAll 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 life9103021- SKU:
- 9103021
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- DISPLACEMENT:
- 125 CC
- ENGINE TYPE:
- 2-STROKE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- PRODUCT NAME:
- TOP END PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
- PISTON DIAMETER METRIC:
- 53.94 MM
- PISTON MATERIAL:
- CAST
- UNITS:
- KIT
MSRP: $168.95Now: $152.06Was: $168.95 -
On Sale
VERTEX Piston Kit VTK22581B
VERTEX
MSRP: $225.95Now: $206.96Was: $229.95VERTEX Piston Kit VTK22581BAll 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 life9103022- SKU:
- 9103022
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- DISPLACEMENT:
- 250 CC
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- TOP END PISTON KIT
- CYLINDER DIAMETER METRIC:
- 66.40 MM
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 66.35 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
MSRP: $225.95Now: $206.96Was: $229.95 -
On Sale
VERTEX Piston Kit VTK22809B
VERTEX
MSRP: $193.95Now: $178.16Was: $197.95VERTEX Piston Kit VTK22809BAll 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 life9103023- SKU:
- 9103023
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- DISPLACEMENT:
- 250 CC
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- TOP END PISTON KIT
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 66.40 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 66.35 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
MSRP: $193.95Now: $178.16Was: $197.95 -
On Sale
VERTEX Piston Kit VTK23133B
VERTEX
MSRP: $199.95Now: $179.96Was: $199.95VERTEX Piston Kit VTK23133BAll 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 life9103024- SKU:
- 9103024
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- CYLINDER DIAMETER METRIC:
- 66.40 MM
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- TOP END PISTON KIT
- PISTON DIAMETER METRIC:
- 66.35 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
MSRP: $199.95Now: $179.96Was: $199.95 -
On Sale
VERTEX Piston Kit VTK22863B
VERTEX
MSRP: $123.95Now: $113.36Was: $125.95VERTEX Piston Kit VTK22863BAll 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 life9103028- SKU:
- 9103028
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PISTON MATERIAL:
- CAST
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 47.50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 47.45 MM
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- DISPLACEMENT:
- 85 CC
- PRODUCT NAME:
- TOP END PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $123.95Now: $113.36Was: $125.95 -
On Sale
VERTEX Wrist Pin 715402
VERTEX
MSRP: $45.95Now: $42.26Was: $46.95VERTEX Wrist Pin 715402Case hardened wrist pins utilize nitride coatings that produce a high performance, wear resistant wrist pin., Coating wrist pins with a nitride coating is advantageous because it allows the desired surface hardness to be obtained...9130104- SKU:
- 9130104
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- PRODUCT NAME:
- WRIST PIN
- UNITS:
- EACH
- APPLICATION:
- PISTON
- RIDING STYLE:
- OFF-ROAD
MSRP: $45.95Now: $42.26Was: $46.95Qty in Cart: 0Quantity:Price:MSRP: $45.95Now: $42.26Was: $46.95Subtotal: -
On Sale
VERTEX Wrist Pin 715431
VERTEX
MSRP: $50.95Now: $46.76Was: $51.95VERTEX Wrist Pin 715431Case hardened wrist pins utilize nitride coatings that produce a high performance, wear resistant wrist pin., Coating wrist pins with a nitride coating is advantageous because it allows the desired surface hardness to be obtained...9130105- SKU:
- 9130105
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- WRIST PIN
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- PISTON
- RIDING STYLE:
- STREET
MSRP: $50.95Now: $46.76Was: $51.95Qty in Cart: 0Quantity:Price:MSRP: $50.95Now: $46.76Was: $51.95Subtotal: -
On Sale
VERTEX Wrist Pin 715061
VERTEX
MSRP: $4.05Now: $3.74Was: $4.15VERTEX Wrist Pin 715061Case hardened wrist pins utilize nitride coatings that produce a high performance, wear resistant wrist pin., Coating wrist pins with a nitride coating is advantageous because it allows the desired surface hardness to be obtained...9130109- SKU:
- 9130109
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- APPLICATION:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- WRIST PIN
- UNITS:
- EACH
MSRP: $4.05Now: $3.74Was: $4.15Qty in Cart: 0Quantity:Price:MSRP: $4.05Now: $3.74Was: $4.15Subtotal:
