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 23235A
VERTEX
MSRP: $247.95Now: $227.66Was: $252.95VERTEX Piston Kit 23235AAll 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 life9101004- SKU:
- 9101004
- Availability:
- Ships Same Business Day
- Weight:
- 0.58 LBS
MSRP: $247.95Now: $227.66Was: $252.95 -
On Sale
VERTEX Piston Kit - Standard 22541B
VERTEX
MSRP: $247.95Now: $227.66Was: $252.95VERTEX Piston Kit Standard 22541BAll 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 life9101003- SKU:
- 9101003
- Availability:
- Ships Same Business Day
- Weight:
- 0.93 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON DIAMETER METRIC:
- 77.95 MM
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- CYLINDER DIAMETER METRIC:
- 78.00 MM
- DISPLACEMENT:
- 360 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
MSRP: $247.95Now: $227.66Was: $252.95 -
On Sale
VERTEX Piston Kit 22925B
VERTEX
MSRP: $198.95Now: $182.66Was: $202.95VERTEX Piston Kit 22925BAll 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 life9100992- SKU:
- 9100992
- Availability:
- Ships Same Business Day
- Weight:
- 0.61 LBS
- CYLINDER DIAMETER METRIC:
- 64.00 MM
- DISPLACEMENT:
- 200 CC
- PRODUCT NAME:
- PISTON KIT
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 63.95 MM
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
MSRP: $198.95Now: $182.66Was: $202.95 -
On Sale
ATHENA Piston Kit S5F08300005B
ATHENA
MSRP: $243.95Now: $219.56Was: $243.95ATHENA Piston Kit S5F08300005BTwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...9100884- SKU:
- 9100884
- Availability:
- Ships Same Business Day
- Weight:
- 0.61 LBS
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- B
- BORE SIZE METRIC:
- 82.96 MM
- COMPRESSION RATIO IMPERIAL:
- STOCK
- PISTON HEAD SHAPE:
- DOMED
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $243.95Now: $219.56Was: $243.95 -
On Sale
ATHENA Piston Kit S4C05800002B
ATHENA
MSRP: $242.95Now: $218.66Was: $242.95ATHENA Piston Kit S4C05800002BIncludes rings, clips and pin, Easy-to-follow step-by-step installation instructions9100878- SKU:
- 9100878
- Availability:
- Ships Same Business Day
- Weight:
- 0.43 LBS
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 57.95 MM
- PISTON SIZE METRIC:
- STANDARD SIZE B
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- STYLE:
- BIG BORE
- PRODUCT NAME:
- PISTON
MSRP: $242.95Now: $218.66Was: $242.95 -
On Sale
ATHENA Piston Kit S4C05800002A
ATHENA
MSRP: $242.95Now: $218.66Was: $242.95ATHENA Piston Kit S4C05800002AIncludes rings, clips and pin, Easy-to-follow step-by-step installation instructions9100877- SKU:
- 9100877
- Availability:
- Ships Same Business Day
- Weight:
- 0.43 LBS
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- ENGINE TYPE:
- 2-STROKE
- PISTON SIZE METRIC:
- STANDARD SIZE A
- RIDING STYLE:
- OFF-ROAD
- PISTON DIAMETER METRIC:
- 57.94 MM
- STYLE:
- BIG BORE
- UNITS:
- EACH
- PRODUCT NAME:
- PISTON
MSRP: $242.95Now: $218.66Was: $242.95Qty in Cart: 0Quantity:Price:MSRP: $242.95Now: $218.66Was: $242.95Subtotal: -
BBR MOTORSPORTS Piston Kit - 240cc 411-HCF-2305
BBR MOTORSPORTS
$173.95BBR MOTORSPORTS Piston Kit 240cc 411-HCF-2305Replacement piston kit includes piston, rings, pin and clips9100842- SKU:
- 9100842
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- STYLE:
- BIG BORE
- DISPLACEMENT:
- 240 CC
- PRODUCT NAME:
- PISTON KIT
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$173.95Qty in Cart: 0Quantity:Price:$173.95Subtotal: -
WISECO Piston Kit - CRF150R - 2mm 4924M06800
WISECO
$264.95WISECO Piston Kit CRF150R 2mm 4924M06800Pistons come without gasket kit9100822- SKU:
- 9100822
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE - OVERSIZE:
- +2,00 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- SKIRT COATING:
- MOLY COATED
- STROKE LENGTH METRIC:
- 43.70 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- +2.00 MM
- BORE SIZE METRIC:
- 68.00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.4:1
- DISPLACEMENT:
- 159 CC
- RIDING STYLE:
- OFF-ROAD
$264.95 -
WISECO Piston Kit - Standard - CRF150R 4924M06600
WISECO
$224.95WISECO Piston Kit Standard CRF150R 4924M06600Pistons come without gasket kit9100821- SKU:
- 9100821
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH METRIC:
- 43.70 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON
- SKIRT COATING:
- MOLY COATED
- BORE SIZE METRIC:
- 66.00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.2:1
- DISPLACEMENT:
- 150 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$224.95 -
WISECO Piston Kit - Standard - CRF150R 4915M06600
WISECO
$199.95WISECO Piston Kit Standard CRF150R 4915M06600Pistons come without gasket kit9100819- SKU:
- 9100819
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- STROKE LENGTH METRIC:
- 43.70 MM
- COMPRESSION RATIO IMPERIAL:
- 11.7:1
- SKIRT COATING:
- MOLY COATED
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- STANDARD
- BORE SIZE METRIC:
- 66.00 MM
- DISPLACEMENT:
- 150 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$199.95 -
On Sale
ATHENA Piston Kit S5F08300002B
ATHENA
MSRP: $233.95Now: $210.56Was: $233.95ATHENA Piston Kit S5F08300002BIncludes rings, clips and pin, Easy-to-follow step-by-step installation instructions9100727- SKU:
- 9100727
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 82.96 MM
- PISTON SIZE METRIC:
- STANDARD SIZE B
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- PRODUCT NAME:
- PISTON
MSRP: $233.95Now: $210.56Was: $233.95 -
BBR MOTORSPORTS Piston Kit - 143cc 411-KLX-1411
BBR MOTORSPORTS
$162.95BBR MOTORSPORTS Piston Kit 143cc 411-KLX-1411Replacement piston kit includes piston, rings, pin and clips9100720- SKU:
- 9100720
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- DISPLACEMENT:
- 143 CC
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- UNITS:
- KIT
$162.95 -
On Sale
ATHENA Piston Kit S4F06600002C
ATHENA
MSRP: $150.95Now: $135.86Was: $150.95ATHENA Piston Kit S4F06600002CTwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...9100452- SKU:
- 9100452
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 65.96 MM
- DISPLACEMENT:
- 198 CC
- PISTON HEAD SHAPE:
- FLAT TOP
- TYPE:
- C
- COMPRESSION RATIO IMPERIAL:
- STOCK
- PRODUCT NAME:
- PISTON KIT
MSRP: $150.95Now: $135.86Was: $150.95 -
On Sale
ATHENA Piston Kit S4F10000007A
ATHENA
MSRP: $240.95Now: $216.86Was: $240.95ATHENA Piston Kit S4F10000007AIncludes rings, clips and pin, Easy-to-follow step-by-step installation instructions9100255- SKU:
- 9100255
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.6:1
- PISTON SIZE METRIC:
- STANDARD SIZE A
- PISTON DIAMETER METRIC:
- 99.95 MM
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- ENGINE TYPE:
- 4-STROKE
- UNITS:
- EACH
MSRP: $240.95Now: $216.86Was: $240.95 -
On Sale
ATHENA Piston Kit S4C05400010A
ATHENA
MSRP: $120.95Now: $108.86Was: $120.95ATHENA Piston Kit S4C05400010AIncludes rings, clips and pin, Easy-to-follow step-by-step installation instructions9100253- SKU:
- 9100253
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 53.94 MM
- PISTON SIZE METRIC:
- STANDARD SIZE A
- STYLE:
- STANDARD BORE
- UNITS:
- EACH
- COMPRESSION RATIO IMPERIAL:
- 14.8:1
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- PISTON
MSRP: $120.95Now: $108.86Was: $120.95 -
On Sale
ATHENA Piston Kit S4F05400001C
ATHENA
MSRP: $146.95Now: $132.26Was: $146.95ATHENA Piston Kit S4F05400001CTwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...9100199- SKU:
- 9100199
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
MSRP: $146.95Now: $132.26Was: $146.95Qty in Cart: 0Quantity:Price:MSRP: $146.95Now: $132.26Was: $146.95Subtotal: -
On Sale
ATHENA Piston Kit S4F07200001C
ATHENA
MSRP: $223.95Now: $201.56Was: $223.95ATHENA Piston Kit S4F07200001CTwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...9100174- SKU:
- 9100174
- Availability:
- Ships Same Business Day
- Weight:
- 0.59 LBS
- ENGINE TYPE:
- 2-STROKE
- COMPRESSION RATIO IMPERIAL:
- STOCK
- DISPLACEMENT:
- 300 CC
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 71.95 MM
- PISTON HEAD SHAPE:
- FLAT TOP
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- C
MSRP: $223.95Now: $201.56Was: $223.95 -
On Sale
ATHENA Piston Kit S4F07200001B
ATHENA
MSRP: $223.95Now: $201.56Was: $223.95ATHENA Piston Kit S4F07200001BTwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...9100173- SKU:
- 9100173
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- COMPRESSION RATIO IMPERIAL:
- STOCK
- DISPLACEMENT:
- 300 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 71.94 MM
- ENGINE TYPE:
- 2-STROKE
- TYPE:
- B
- PISTON HEAD SHAPE:
- FLAT TOP
- PRODUCT NAME:
- PISTON KIT
MSRP: $223.95Now: $201.56Was: $223.95 -
On Sale
ATHENA Piston Kit S4F07200001A
ATHENA
MSRP: $223.95Now: $201.56Was: $223.95ATHENA Piston Kit S4F07200001ATwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...9100172- SKU:
- 9100172
- Availability:
- Ships Same Business Day
- Weight:
- 0.59 LBS
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- A
- BORE SIZE METRIC:
- 71.93 MM
- PISTON HEAD SHAPE:
- FLAT TOP
- COMPRESSION RATIO IMPERIAL:
- STOCK
- DISPLACEMENT:
- 300 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $223.95Now: $201.56Was: $223.95 -
On Sale
ATHENA Piston Kit S4F06900001C
ATHENA
MSRP: $161.95Now: $145.76Was: $161.95ATHENA Piston Kit S4F06900001CTwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...9100170- SKU:
- 9100170
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- DISPLACEMENT:
- 220 CC
- ENGINE TYPE:
- 2-STROKE
- BORE SIZE METRIC:
- 68.96 MM
- PISTON HEAD SHAPE:
- DOMED
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- COMPRESSION RATIO IMPERIAL:
- STOCK
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- C
- UNITS:
- KIT
MSRP: $161.95Now: $145.76Was: $161.95
