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 24220B
VERTEX
MSRP: $270.95Now: $243.86Was: $270.95VERTEX Piston Kit 24220BAll 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...9105190- SKU:
- 9105190
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.7:1
- DISPLACEMENT:
- 250 CC
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 76.96 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $270.95Now: $243.86Was: $270.95 -
On Sale
VERTEX Piston Kit 24271B
VERTEX
MSRP: $247.95Now: $227.66Was: $252.95VERTEX Piston Kit 24271BAll 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...9105195- SKU:
- 9105195
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- CYLINDER DIAMETER METRIC:
- 97.00 MM
- PISTON DIAMETER METRIC:
- 96.96 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- 14.6:1
- DISPLACEMENT:
- 450 CC
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
MSRP: $247.95Now: $227.66Was: $252.95Qty in Cart: 0Quantity:Price:MSRP: $247.95Now: $227.66Was: $252.95Subtotal: -
On Sale
VERTEX Wrist Pin 711241
VERTEX
MSRP: $50.95Now: $46.76Was: $51.95VERTEX Wrist Pin 711241Case 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...9105200- SKU:
- 9105200
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- WRIST PIN
- UNITS:
- EACH
MSRP: $50.95Now: $46.76Was: $51.95Qty in Cart: 0Quantity:Price:MSRP: $50.95Now: $46.76Was: $51.95Subtotal: -
On Sale
VERTEX Piston Kit 24101A
VERTEX
MSRP: $182.95Now: $168.26Was: $186.95VERTEX Piston Kit 24101AAll 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...9104070- SKU:
- 9104070
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
- DISPLACEMENT:
- 150 CC
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 58 MM
- PISTON DIAMETER METRIC:
- 57.94 MM
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $182.95Now: $168.26Was: $186.95 -
On Sale
VERTEX Piston Kit 24097A
VERTEX
MSRP: $247.95Now: $227.66Was: $252.95VERTEX Piston Kit 24097AAll 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 life9104076- SKU:
- 9104076
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
MSRP: $247.95Now: $227.66Was: $252.95 -
On Sale
VERTEX Piston Kit 24122B
VERTEX
MSRP: $209.95Now: $192.56Was: $213.95VERTEX Piston Kit 24122BAll 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 life9104087- SKU:
- 9104087
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
MSRP: $209.95Now: $192.56Was: $213.95 -
On Sale
VERTEX Piston Kit 24122C
VERTEX
MSRP: $191.95Now: $172.76Was: $191.95VERTEX Piston Kit 24122CAll 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 life9104088- SKU:
- 9104088
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
MSRP: $191.95Now: $172.76Was: $191.95Qty in Cart: 0Quantity:Price:MSRP: $191.95Now: $172.76Was: $191.95Subtotal: -
On Sale
VERTEX Piston Kit - High Compression 24120B
VERTEX
MSRP: $247.95Now: $227.66Was: $252.95VERTEX Piston Kit High Compression 24120BAll 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 life9104098- SKU:
- 9104098
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- COMPRESSION RATIO IMPERIAL:
- 14.3:1
- DISPLACEMENT:
- 250 CC
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 76.80 MM
- PISTON DIAMETER METRIC:
- 76.77 MM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $247.95Now: $227.66Was: $252.95Qty in Cart: 0Quantity:Price:MSRP: $247.95Now: $227.66Was: $252.95Subtotal: -
On Sale
VERTEX Piston Kit - High Compression 24120C
VERTEX
MSRP: $212.95Now: $191.66Was: $212.95VERTEX Piston Kit High Compression 24120CAll 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 life9104099- SKU:
- 9104099
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- COMPRESSION RATIO IMPERIAL:
- 14.3:1
- DISPLACEMENT:
- 250 CC
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- CYLINDER DIAMETER METRIC:
- 76.80 MM
- RIDING STYLE:
- OFF-ROAD
- PISTON DIAMETER METRIC:
- 76.78 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
MSRP: $212.95Now: $191.66Was: $212.95 -
On Sale
VERTEX Piston Kit - High Compression 24123A
VERTEX
MSRP: $236.95Now: $217.76Was: $241.95VERTEX Piston Kit High Compression 24123AAll 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 life9104100- SKU:
- 9104100
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 14.2:1
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- PISTON DIAMETER METRIC:
- 76.95 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
MSRP: $236.95Now: $217.76Was: $241.95 -
On Sale
VERTEX Piston Kit 24099A
VERTEX
MSRP: $247.95Now: $227.66Was: $252.95VERTEX Piston Kit 24099AAll 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 life9104107- SKU:
- 9104107
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- CYLINDER DIAMETER METRIC:
- 95.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- COMPRESSION RATIO IMPERIAL:
- 12.6:1
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 94.95 MM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- STREET
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
MSRP: $247.95Now: $227.66Was: $252.95 -
On Sale
VERTEX Piston Kit 24099B
VERTEX
MSRP: $247.95Now: $227.66Was: $252.95VERTEX Piston Kit 24099BAll 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 life9104108- SKU:
- 9104108
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- CYLINDER DIAMETER METRIC:
- 95.00 MM
- PISTON DIAMETER METRIC:
- 94.96 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- DISPLACEMENT:
- 450 CC
- COMPRESSION RATIO IMPERIAL:
- 12.6:1
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
MSRP: $247.95Now: $227.66Was: $252.95 -
On Sale
VERTEX Piston Kit 24098A
VERTEX
MSRP: $247.95Now: $227.66Was: $252.95VERTEX Piston Kit 24098AAll 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 life9104110- SKU:
- 9104110
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
MSRP: $247.95Now: $227.66Was: $252.95 -
On Sale
VERTEX Piston Kit - High Compression 24112A
VERTEX
MSRP: $268.95Now: $246.56Was: $273.95VERTEX Piston Kit High Compression 24112AAll 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 life9104113- SKU:
- 9104113
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.6:1
- DISPLACEMENT:
- 450 CC
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 95.00 MM
- PISTON DIAMETER METRIC:
- 94.95 MM
- RIDING STYLE:
- STREET
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
MSRP: $268.95Now: $246.56Was: $273.95 -
On Sale
VERTEX Piston Kit 23941B
VERTEX
MSRP: $188.95Now: $173.66Was: $192.95VERTEX Piston Kit 23941BAll 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 life9103346- SKU:
- 9103346
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
MSRP: $188.95Now: $173.66Was: $192.95 -
On Sale
VERTEX Piston Kit 23942A
VERTEX
MSRP: $236.95Now: $217.76Was: $241.95VERTEX Piston Kit 23942AAll 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 life9103348- SKU:
- 9103348
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- PISTON DIAMETER METRIC:
- 76.95 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 14.2:1
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
MSRP: $236.95Now: $217.76Was: $241.95 -
On Sale
VERTEX Piston Kit 23942B
VERTEX
MSRP: $236.95Now: $217.76Was: $241.95VERTEX Piston Kit 23942BAll 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 life9103349- SKU:
- 9103349
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- DISPLACEMENT:
- 250 CC
- COMPRESSION RATIO IMPERIAL:
- 14.2:1
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 76.96 MM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
MSRP: $236.95Now: $217.76Was: $241.95 -
On Sale
VERTEX Piston Kit 23942C
VERTEX
MSRP: $228.95Now: $206.06Was: $228.95VERTEX Piston Kit 23942CAll 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 life9103350- SKU:
- 9103350
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- 14.2:1
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 76.97 MM
MSRP: $228.95Now: $206.06Was: $228.95 -
On Sale
VERTEX Piston Kit 23954A
VERTEX
MSRP: $290.95Now: $267.26Was: $296.95VERTEX Piston Kit 23954AAll 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 life9103351- SKU:
- 9103351
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- 14.4:1
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- PISTON DIAMETER METRIC:
- 76.95 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
MSRP: $290.95Now: $267.26Was: $296.95Qty in Cart: 0Quantity:Price:MSRP: $290.95Now: $267.26Was: $296.95Subtotal: -
On Sale
VERTEX Piston Kit 23954B
VERTEX
MSRP: $290.95Now: $267.26Was: $296.95VERTEX Piston Kit 23954BAll 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 life9103352- SKU:
- 9103352
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- PISTON KIT
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 76.96 MM
- COMPRESSION RATIO IMPERIAL:
- 14.4:1
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
MSRP: $290.95Now: $267.26Was: $296.95
