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 Ring 53010004850
VERTEX
MSRP: $21.55Now: $19.76Was: $21.95VERTEX Piston Ring 53010004850Replacement piston rings, Nitride coated or chrome plated, increasing wear resistance and extending durability, The latest generation for both two-stroke and four-stroke engines; four-stroke piston rings are sold in sets and...9120168- SKU:
- 9120168
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PISTON DIAMETER METRIC:
- 48.45 MM
MSRP: $21.55Now: $19.76Was: $21.95 -
On Sale
VERTEX Piston Ring 53010005200
VERTEX
MSRP: $23.95Now: $21.56Was: $23.95VERTEX Piston Ring 53010005200Replacement piston rings, Nitride coated or chrome plated, increasing wear resistance and extending durability, The latest generation for both two-stroke and four-stroke engines; four-stroke piston rings are sold in sets and...9120169- SKU:
- 9120169
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PISTON DIAMETER METRIC:
- 51.95 MM
- UNITS:
- EACH
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
MSRP: $23.95Now: $21.56Was: $23.95 -
On Sale
VERTEX Piston Ring 53010005400
VERTEX
MSRP: $25.95Now: $23.36Was: $25.95VERTEX Piston Ring 53010005400Replacement piston rings, Nitride coated or chrome plated, increasing wear resistance and extending durability, The latest generation for both two-stroke and four-stroke engines; four-stroke piston rings are sold in sets and...9120170- SKU:
- 9120170
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PISTON DIAMETER METRIC:
- 53.96 MM
MSRP: $25.95Now: $23.36Was: $25.95 -
On Sale
VERTEX Piston Ring 53010005425
VERTEX
MSRP: $25.95Now: $23.36Was: $25.95VERTEX Piston Ring 53010005425Replacement piston rings, Nitride coated or chrome plated, increasing wear resistance and extending durability, The latest generation for both two-stroke and four-stroke engines; four-stroke piston rings are sold in sets and...9120171- SKU:
- 9120171
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PISTON DIAMETER METRIC:
- 54.20 MM
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
MSRP: $25.95Now: $23.36Was: $25.95Qty in Cart: 0Quantity:Price:MSRP: $25.95Now: $23.36Was: $25.95Subtotal: -
On Sale
VERTEX Piston Kit 22501B
VERTEX
MSRP: $112.95Now: $103.46Was: $114.95VERTEX Piston Kit 22501BAll 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...9102075- SKU:
- 9102075
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- DISPLACEMENT:
- 80 CC
- PISTON MATERIAL:
- CAST
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 47.50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 47.44 MM
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $112.95Now: $103.46Was: $114.95 -
On Sale
VERTEX Piston Kit 23628A
VERTEX
MSRP: $161.95Now: $148.46Was: $164.95VERTEX Piston Kit 23628AAll 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 life9102113- SKU:
- 9102113
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- STYLE:
- CAST BIG BORE
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 52.44 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE:
- +5,00 MM
- BORE - OVERSIZE METRIC:
- +5.00 MM
- CYLINDER DIAMETER METRIC:
- 52.50 MM
- DISPLACEMENT:
- 104 CC
- RIDING STYLE:
- OFF-ROAD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $161.95Now: $148.46Was: $164.95 -
On Sale
VERTEX Piston Kit 23628B
VERTEX
MSRP: $161.95Now: $148.46Was: $164.95VERTEX Piston Kit 23628BAll 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 life9102114- SKU:
- 9102114
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- BORE - OVERSIZE METRIC:
- +5.00 MM
- CYLINDER DIAMETER METRIC:
- 52.50 MM
- DISPLACEMENT:
- 104 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE:
- +5,00 MM
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON DIAMETER METRIC:
- 52.45 MM
- RIDING STYLE:
- OFF-ROAD
- PISTON MATERIAL:
- CAST
- STYLE:
- CAST BIG BORE
- UNITS:
- KIT
MSRP: $161.95Now: $148.46Was: $164.95 -
On Sale
VERTEX Piston Kit 22996B
VERTEX
MSRP: $139.95Now: $128.66Was: $142.95VERTEX Piston Kit 22996BAll 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...9102127- SKU:
- 9102127
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- DISPLACEMENT:
- 125 CC
- PISTON DIAMETER METRIC:
- 53.93 MM
- STYLE:
- CAST RACE
MSRP: $139.95Now: $128.66Was: $142.95 -
On Sale
VERTEX Piston Kit 22979200
VERTEX
MSRP: $219.95Now: $197.96Was: $219.95All 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 life9101958- SKU:
- 9101958
- Weight:
- 12.00 LBS
MSRP: $219.95Now: $197.96Was: $219.95Qty in Cart: 0Quantity:Price:MSRP: $219.95Now: $197.96Was: $219.95Subtotal: -
On Sale
VERTEX Piston Kit 23404A
VERTEX
MSRP: $258.95Now: $237.56Was: $263.95VERTEX Piston Kit 23404AAll 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 life9101963- SKU:
- 9101963
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- BORE - OVERSIZE:
- +3,00 MM
- DISPLACEMENT:
- 480 CC
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- CYLINDER DIAMETER METRIC:
- 98.00 MM
- PISTON DIAMETER METRIC:
- 97.96 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- STYLE:
- FORGED BIG BORE
- BORE - OVERSIZE METRIC:
- +3.00 MM
MSRP: $258.95Now: $237.56Was: $263.95 -
On Sale
VERTEX Piston Kit 22983A
VERTEX
MSRP: $198.95Now: $182.66Was: $202.95VERTEX Piston Kit 22983AAll 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 life9101747- SKU:
- 9101747
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
MSRP: $198.95Now: $182.66Was: $202.95 -
On Sale
VERTEX Piston Kit 23430CD
VERTEX
MSRP: $84.95Now: $78.26Was: $86.95VERTEX Piston Kit 23430CDAll 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 life9101835- SKU:
- 9101835
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 45.00 MM
- DISPLACEMENT:
- 65 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- STYLE:
- CAST REPLICA
- PISTON DIAMETER METRIC:
- 44.97 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $84.95Now: $78.26Was: $86.95 -
On Sale
VERTEX Piston Kit 22958200
VERTEX
MSRP: $269.95Now: $242.96Was: $269.95All 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 life9101836- SKU:
- 9101836
- Weight:
- 16.00 LBS
MSRP: $269.95Now: $242.96Was: $269.95Qty in Cart: 0Quantity:Price:MSRP: $269.95Now: $242.96Was: $269.95Subtotal: -
On Sale
VERTEX Piston Kit 22567A
VERTEX
MSRP: $215.95Now: $197.96Was: $219.95VERTEX Piston Kit 22567AAll 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 life9101902- SKU:
- 9101902
- Availability:
- Ships Same Business Day
- Weight:
- 0.93 LBS
MSRP: $215.95Now: $197.96Was: $219.95 -
On Sale
VERTEX Piston Kit - Standard 22926B
VERTEX
MSRP: $188.95Now: $173.66Was: $192.95VERTEX Piston Kit Standard 22926BAll 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 life9100993- SKU:
- 9100993
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
- CYLINDER DIAMETER METRIC:
- 64.00 MM
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 200 CC
- PISTON DIAMETER METRIC:
- 63.95 MM
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
MSRP: $188.95Now: $173.66Was: $192.95 -
On Sale
VERTEX Piston Kit 22459B
VERTEX
MSRP: $198.95Now: $182.66Was: $202.95VERTEX Piston Kit 22459BAll 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 life9100995- SKU:
- 9100995
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- CYLINDER DIAMETER METRIC:
- 67.50 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- PISTON DIAMETER METRIC:
- 67.45 MM
MSRP: $198.95Now: $182.66Was: $202.95 -
On Sale
VERTEX Piston Kit - Standard 22649B
VERTEX
MSRP: $188.95Now: $173.66Was: $192.95VERTEX Piston Kit Standard 22649BAll 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 life9100996- SKU:
- 9100996
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 66.40 MM
- DISPLACEMENT:
- 250 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- STYLE:
- CAST REPLICA
- PISTON DIAMETER METRIC:
- 66.35 MM
MSRP: $188.95Now: $173.66Was: $192.95 -
On Sale
VERTEX Piston Kit - Standard 22909B
VERTEX
MSRP: $182.95Now: $168.26Was: $186.95VERTEX Piston Kit Standard 22909BAll 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 life9100998- SKU:
- 9100998
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- 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
- CYLINDER DIAMETER METRIC:
- 66.40 MM
MSRP: $182.95Now: $168.26Was: $186.95 -
On Sale
VERTEX Piston Kit 24187C
VERTEX
MSRP: $205.95Now: $185.36Was: $205.95VERTEX Piston Kit 24187CAll 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...9104660- SKU:
- 9104660
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
MSRP: $205.95Now: $185.36Was: $205.95Qty in Cart: 0Quantity:Price:MSRP: $205.95Now: $185.36Was: $205.95Subtotal: -
On Sale
VERTEX Piston Kit 24188A
VERTEX
MSRP: $268.95Now: $246.56Was: $273.95VERTEX Piston Kit 24188AAll 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...9104662- SKU:
- 9104662
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- DISPLACEMENT:
- 450 CC
- COMPRESSION RATIO IMPERIAL:
- 14.4:1
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 95.96 MM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $268.95Now: $246.56Was: $273.95
