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 23630A
VERTEX
MSRP: $177.95Now: $163.76Was: $181.95VERTEX Piston Kit 23630AAll 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 life9102066- SKU:
- 9102066
- Availability:
- Ships Same Business Day
- Weight:
- 0.79 LBS
- PISTON MATERIAL:
- CAST
- UNITS:
- KIT
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 66.34 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
- CYLINDER DIAMETER METRIC:
- 66.40 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $177.95Now: $163.76Was: $181.95 -
On Sale
VERTEX Piston Kit 23630B
VERTEX
MSRP: $175.95Now: $161.06Was: $178.95VERTEX Piston Kit 23630BAll 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 life9102067- SKU:
- 9102067
- Availability:
- Ships Same Business Day
- Weight:
- 0.79 LBS
- PISTON MATERIAL:
- CAST
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
- CYLINDER DIAMETER METRIC:
- 66.40 MM
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- PISTON DIAMETER METRIC:
- 66.35 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $175.95Now: $161.06Was: $178.95 -
On Sale
VERTEX Piston Kit 22978A
VERTEX
MSRP: $258.95Now: $233.06Was: $258.95VERTEX Piston Kit 22978AAll 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...9102070- SKU:
- 9102070
- Availability:
- Ships Same Business Day
- Weight:
- 0.84 LBS
MSRP: $258.95Now: $233.06Was: $258.95 -
On Sale
VERTEX Piston Kit - Stroker 23879B
VERTEX
MSRP: $144.95Now: $133.16Was: $147.95VERTEX Piston Kit Stroker 23879BAll 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 life9103678- SKU:
- 9103678
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST STROKER
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 52.00 MM
- PISTON DIAMETER METRIC:
- 51.96 MM
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 112 CC
- PISTON MATERIAL:
- CAST
- UNITS:
- KIT
MSRP: $144.95Now: $133.16Was: $147.95 -
On Sale
VERTEX Piston Kit 24018A
VERTEX
MSRP: $215.95Now: $197.96Was: $219.95VERTEX Piston Kit 24018AAll 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 life9103679- SKU:
- 9103679
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
MSRP: $215.95Now: $197.96Was: $219.95 -
On Sale
VERTEX Piston Kit - High Compression 24019A
VERTEX
MSRP: $236.95Now: $217.76Was: $241.95VERTEX Piston Kit High Compression 24019AAll 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 life9103681- SKU:
- 9103681
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- PISTON DIAMETER METRIC:
- 95.96 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- DISPLACEMENT:
- 450 CC
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- COMPRESSION RATIO IMPERIAL:
- 13.0:1
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
MSRP: $236.95Now: $217.76Was: $241.95 -
On Sale
VERTEX Piston Kit - High Compression 24019B
VERTEX
MSRP: $236.95Now: $217.76Was: $241.95VERTEX Piston Kit High Compression 24019BAll 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 life9103682- SKU:
- 9103682
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- COMPRESSION RATIO IMPERIAL:
- 13.0:1
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 95.97 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- DISPLACEMENT:
- 450 CC
- PRODUCT NAME:
- PISTON KIT
MSRP: $236.95Now: $217.76Was: $241.95 -
On Sale
VERTEX Piston Kit - High Compression 24021B
VERTEX
MSRP: $236.95Now: $217.76Was: $241.95VERTEX Piston Kit High Compression 24021BAll 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 life9103688- SKU:
- 9103688
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PISTON DIAMETER METRIC:
- 76.96 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- COMPRESSION RATIO IMPERIAL:
- 14.3:1
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- PISTON KIT
MSRP: $236.95Now: $217.76Was: $241.95 -
On Sale
VERTEX Piston Kit - High Compression 24021C
VERTEX
MSRP: $212.95Now: $191.66Was: $212.95VERTEX Piston Kit High Compression 24021CAll 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 life9103689- SKU:
- 9103689
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- 14.3:1
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- PISTON DIAMETER METRIC:
- 76.97 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
MSRP: $212.95Now: $191.66Was: $212.95 -
On Sale
VERTEX Piston Kit - High Compression 24022A
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 life9103690- SKU:
- 9103690
- Weight:
- 9.00 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 24022B
VERTEX
MSRP: $301.95Now: $277.16Was: $307.95VERTEX Piston Kit High Compression 24022BAll 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 life9103691- SKU:
- 9103691
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- DISPLACEMENT:
- 450 CC
- PISTON DIAMETER METRIC:
- 95.97 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
MSRP: $301.95Now: $277.16Was: $307.95 -
On Sale
VERTEX Piston Kit VTKTC22915B
VERTEX
MSRP: $307.95Now: $277.16Was: $307.95VERTEX Piston Kit VTKTC22915BAll 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 life9103717- SKU:
- 9103717
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
MSRP: $307.95Now: $277.16Was: $307.95 -
On Sale
VERTEX Piston Kit VTKTC22915B-1
VERTEX
MSRP: $301.95Now: $271.76Was: $301.95VERTEX Piston Kit VTKTC22915B-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 life9103718- SKU:
- 9103718
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
MSRP: $301.95Now: $271.76Was: $301.95 -
On Sale
VERTEX Piston Kit VTKTC22951A
VERTEX
MSRP: $268.95Now: $246.56Was: $273.95VERTEX Piston Kit VTKTC22951AAll 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 life9103721- SKU:
- 9103721
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
MSRP: $268.95Now: $246.56Was: $273.95Qty in Cart: 0Quantity:Price:MSRP: $268.95Now: $246.56Was: $273.95Subtotal: -
On Sale
VERTEX Piston Kit VTKTC22983A
VERTEX
MSRP: $276.95Now: $249.26Was: $276.95VERTEX Piston Kit VTKTC22983AAll 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 life9103724- SKU:
- 9103724
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
MSRP: $276.95Now: $249.26Was: $276.95 -
WISECO Wrist Pin S529
WISECO
$23.99Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperaturesS529- SKU:
- S529
- Weight:
- 0.12 LBS
- APPLICATION:
- PISTON
- LENGTH:
- 61,3 MM
- LENGTH METRIC:
- 61.3 MM
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- WRIST PIN
- OUTSIDE DIAMETER:
- 21,00 MM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- SILICONE
- OUTSIDE DIAMETER METRIC:
- 21.00 MM
- RIDING STYLE:
- OFF-ROAD
$23.99 -
WISECO Piston Kit 4045M08800
WISECO
$237.50WISECO Piston Kit 4045M08800Pistons come without gasket kit9102900- SKU:
- 9102900
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
$237.50Qty in Cart: 0Quantity:Price:$237.50Subtotal: -
WISECO Piston - +1.00 mm 232M08600
WISECO
$209.95WISECO Piston +1.00 mm 232M08600Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and...232M08600- SKU:
- 232M08600
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 85.92 MM
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH METRIC:
- 70.00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- DISPLACEMENT:
- 397 CC
- MODEL:
- FORGED SERIES
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- BORE - OVERSIZE:
- +1,00 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 86.00 MM
$209.95 -
WISECO Piston Kit 4190M09000
WISECO
$269.95WISECO Piston Kit 4190M09000Pistons come without gasket kit9102902- SKU:
- 9102902
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- BORE - OVERSIZE:
- +3,00 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- STROKE LENGTH METRIC:
- 84.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- +3.00 MM
- BORE SIZE METRIC:
- 90.00 MM
- DISPLACEMENT:
- 499 CC
- RIDING STYLE:
- STREET
$269.95 -
WISECO Piston - Yamaha - +.50 mm 236M05650
WISECO
$159.95WISECO Piston Yamaha +.50 mm 236M05650Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with...236M05650- SKU:
- 236M05650
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE - OVERSIZE:
- +0,50 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- UNITS:
- KIT
- BORE SIZE METRIC:
- 56.50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 56.45 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- BORE - OVERSIZE METRIC:
- +0.50 MM
- DISPLACEMENT:
- 123 CC
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 50.00 MM
$159.95
