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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REKLUSE Clutch Cover - Gas Gas/Yamaha RMS-473
REKLUSE
$189.00REKLUSE Clutch Cover Gas Gas/Yamaha RMS-473Specifically engineered to provide unparalleled durability and performance in a single, stylish component, Ready to ride whenever you are, standing up against rocks, logs, boots and whatever else you may...9401835- SKU:
- 9401835
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$189.00 -
REKLUSE Clutch Cover - YZ/WR450 RMS-476
REKLUSE
$189.00REKLUSE Clutch Cover YZ/WR450 RMS-476Specifically engineered to provide unparalleled durability and performance in a single, stylish component, Ready to ride whenever you are, standing up against rocks, logs, boots and whatever else you may encounter in...9401836- SKU:
- 9401836
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TYPE:
- CLUTCH
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
$189.00Qty in Cart: 0Quantity:Price:$189.00Subtotal: -
REKLUSE Clutch Cover - YZ/WR250 RMS-478
REKLUSE
$189.00REKLUSE Clutch Cover YZ/WR250 RMS-478Specifically engineered to provide unparalleled durability and performance in a single, stylish component, Ready to ride whenever you are, standing up against rocks, logs, boots and whatever else you may encounter in...9401837- SKU:
- 9401837
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- TYPE:
- CLUTCH
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$189.00 -
REKLUSE Clutch Cover - Sherco 450 RMS-0408004
REKLUSE
$189.00REKLUSE Clutch Cover Sherco 450 RMS-0408004Specifically engineered to provide unparalleled durability and performance in a single, stylish component, Ready to ride whenever you are, standing up against rocks, logs, boots and whatever else you may...9401997- SKU:
- 9401997
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$189.00Qty in Cart: 0Quantity:Price:$189.00Subtotal: -
REKLUSE Clutch Cover - KX250 RMS-0404140
REKLUSE
$189.00REKLUSE Clutch Cover KX250 RMS-0404140Specifically engineered to provide unparalleled durability and performance in a single, stylish component, Ready to ride whenever you are, standing up against rocks, logs, boots and whatever else you may encounter in...9401998- SKU:
- 9401998
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$189.00 -
REKLUSE Clutch Cover - KX450F RMS-0404047
REKLUSE
$189.00REKLUSE Clutch Cover KX450F RMS-0404047Specifically engineered to provide unparalleled durability and performance in a single, stylish component, Ready to ride whenever you are, standing up against rocks, logs, boots and whatever else you may encounter...9401999- SKU:
- 9401999
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- UNITS:
- EACH
$189.00 -
On Sale
VERTEX Piston Kit - High Compression 24112B
VERTEX
MSRP: $268.95Now: $246.56Was: $273.95VERTEX Piston Kit High Compression 24112BAll 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 life9104114- SKU:
- 9104114
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- STREET
- PISTON DIAMETER METRIC:
- 94.96 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- 13.6:1
- CYLINDER DIAMETER METRIC:
- 95.00 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $268.95Now: $246.56Was: $273.95 -
On Sale
VERTEX Piston Kit - High Compression 24116A
VERTEX
MSRP: $268.95Now: $246.56Was: $273.95VERTEX Piston Kit High Compression 24116AAll 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 life9104117- SKU:
- 9104117
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- RIDING STYLE:
- STREET
- COMPRESSION RATIO IMPERIAL:
- 15.1:1
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 88.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 87.96 MM
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 350 CC
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $268.95Now: $246.56Was: $273.95 -
On Sale
VERTEX Piston Kit - High Compression 24116B
VERTEX
MSRP: $268.95Now: $246.56Was: $273.95VERTEX Piston Kit High Compression 24116BAll 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 life9104118- SKU:
- 9104118
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 88.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 87.97 MM
- RIDING STYLE:
- STREET
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- 15.1:1
- DISPLACEMENT:
- 350 CC
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
MSRP: $268.95Now: $246.56Was: $273.95 -
On Sale
VERTEX Piston Kit - High Compression 24113A
VERTEX
MSRP: $301.95Now: $277.16Was: $307.95VERTEX Piston Kit High Compression 24113AAll 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 life9104119- SKU:
- 9104119
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- DISPLACEMENT:
- 450 CC
- COMPRESSION RATIO IMPERIAL:
- 13.3:1
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 94.95 MM
- RIDING STYLE:
- STREET
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- CYLINDER DIAMETER METRIC:
- 95.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
MSRP: $301.95Now: $277.16Was: $307.95 -
On Sale
VERTEX Piston Kit - High Compression 24113B
VERTEX
MSRP: $301.95Now: $277.16Was: $307.95VERTEX Piston Kit High Compression 24113BAll 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 life9104120- SKU:
- 9104120
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- DISPLACEMENT:
- 450 CC
- COMPRESSION RATIO IMPERIAL:
- 13.3:1
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- STREET
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- CYLINDER DIAMETER METRIC:
- 95.00 MM
- PISTON DIAMETER METRIC:
- 94.96 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
MSRP: $301.95Now: $277.16Was: $307.95 -
On Sale
VERTEX Piston Kit - High Compression 24121B
VERTEX
MSRP: $265.95Now: $239.36Was: $265.95All 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 life9104129- SKU:
- 9104129
- Weight:
- 8.00 LBS
MSRP: $265.95Now: $239.36Was: $265.95Qty in Cart: 0Quantity:Price:MSRP: $265.95Now: $239.36Was: $265.95Subtotal: -
On Sale
VERTEX Piston Kit - High Compression 24121C
VERTEX
MSRP: $265.95Now: $239.36Was: $265.95VERTEX Piston Kit High Compression 24121CAll 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 life9104130- SKU:
- 9104130
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- PISTON DIAMETER METRIC:
- 76.78 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- CYLINDER DIAMETER METRIC:
- 76.80 MM
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
MSRP: $265.95Now: $239.36Was: $265.95 -
On Sale
VERTEX Piston Kit - High Compression 24124A
VERTEX
MSRP: $290.95Now: $267.26Was: $296.95VERTEX Piston Kit High Compression 24124AAll 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 life9104131- SKU:
- 9104131
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- PISTON DIAMETER METRIC:
- 76.95 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- DISPLACEMENT:
- 250 CC
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 13.75:1
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
MSRP: $290.95Now: $267.26Was: $296.95Qty in Cart: 0Quantity:Price:MSRP: $290.95Now: $267.26Was: $296.95Subtotal: -
On Sale
VERTEX Piston Kit - High Compression 24124C
VERTEX
MSRP: $265.95Now: $239.36Was: $265.95VERTEX Piston Kit High Compression 24124CAll 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...9104133- SKU:
- 9104133
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- PISTON DIAMETER METRIC:
- 76.97 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 13.75:1
- DISPLACEMENT:
- 250 CC
MSRP: $265.95Now: $239.36Was: $265.95 -
On Sale
VERTEX Piston Kit 24105B
VERTEX
MSRP: $65.95Now: $60.26Was: $66.95VERTEX Piston Kit 24105BAll 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 life9104135- SKU:
- 9104135
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- CYLINDER DIAMETER METRIC:
- 39.00 MM
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON DIAMETER METRIC:
- 38.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
- DISPLACEMENT:
- 50 CC
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $65.95Now: $60.26Was: $66.95 -
On Sale
VERTEX Piston Kit 24105C
VERTEX
MSRP: $64.95Now: $59.36Was: $65.95VERTEX Piston Kit 24105CAll 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 life9104136- SKU:
- 9104136
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- CAST REPLICA
- CYLINDER DIAMETER METRIC:
- 39.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- DISPLACEMENT:
- 50 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 38.96 MM
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $64.95Now: $59.36Was: $65.95 -
On Sale
VERTEX Piston Kit 24107AB
VERTEX
MSRP: $69.95Now: $63.86Was: $70.95VERTEX Piston Kit 24107ABAll 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 life9104137- SKU:
- 9104137
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- PISTON KIT
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- DISPLACEMENT:
- 65 CC
- PISTON DIAMETER METRIC:
- 44.45 MM
- STYLE:
- CAST REPLICA
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 44.50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $69.95Now: $63.86Was: $70.95 -
On Sale
VERTEX Piston Kit 24106AB
VERTEX
MSRP: $69.95Now: $63.86Was: $70.95VERTEX Piston Kit 24106ABAll 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 life9104139- SKU:
- 9104139
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- CAST
- CYLINDER DIAMETER METRIC:
- 43.00 MM
- PISTON DIAMETER METRIC:
- 42.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 65 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $69.95Now: $63.86Was: $70.95Qty in Cart: 0Quantity:Price:MSRP: $69.95Now: $63.86Was: $70.95Subtotal: -
On Sale
VERTEX Piston Kit - High Compression 23959B
VERTEX
MSRP: $247.95Now: $227.66Was: $252.95VERTEX Piston Kit High Compression 23959BAll 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 life9103400- SKU:
- 9103400
- Availability:
- Ships Same Business Day
- Weight:
- 0.92 LBS
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 96.95 MM
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 450 CC
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- CYLINDER DIAMETER METRIC:
- 97.00 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
MSRP: $247.95Now: $227.66Was: $252.95
