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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WISECO Piston - Standard - Honda CR125R 676M05400
WISECO
$130.95WISECO Piston Standard Honda CR125R 676M05400Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability, longevity...676M05400- SKU:
- 676M05400
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- BORE SIZE METRIC:
- 54.00 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- STROKE LENGTH:
- 54,50 MM
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 54.50 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 125 CC
- PRODUCT NAME:
- PISTON
$130.95 -
WISECO Piston - +.50 mm - Honda CR125R 676M05450
WISECO
$154.95WISECO Piston +.50 mm Honda CR125R 676M05450Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability, longevity...676M05450- SKU:
- 676M05450
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BORE - OVERSIZE:
- +0,50 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 54.50 MM
- DISPLACEMENT:
- 125 CC
- ENGINE TYPE:
- 2-STROKE
- STROKE LENGTH:
- 54,50 MM
- STROKE LENGTH METRIC:
- 54.50 MM
$154.95 -
WISECO Piston - +2.00 mm - Suzuki RM 85/L 806M05000
WISECO
$120.99WISECO Piston +2.00 mm Suzuki RM 85/L 806M05000Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability, longevity...806M05000- SKU:
- 806M05000
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
$120.99Qty in Cart: 0Quantity:Price:$120.99Subtotal: -
WISECO Piston - +5.00 mm - Suzuki RM 85/L 806M05200
WISECO
$169.95WISECO Piston +5.00 mm Suzuki RM 85/L 806M05200Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability, longevity...806M05200- SKU:
- 806M05200
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- DISPLACEMENT:
- 99.4 CC
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE:
- +5,00 MM
- BORE - OVERSIZE METRIC:
- +5.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH METRIC:
- 46.80 MM
- UNITS:
- EACH
- BORE SIZE METRIC:
- 52.00 MM
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH:
- 46,80 MM
$169.95 -
On Sale
WISECO Piston 791M08150
WISECO
MSRP: $166.10Now: $113.37Was: $174.41WISECO Piston 791M08150Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, All Wiseco High-Performance pistons are priced with rings, wrist pins and circlips, Wiseco ring types...791M08150- SKU:
- 791M08150
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- BORE - OVERSIZE METRIC:
- +0.50 MM
- RIDING STYLE:
- WATERCRAFT
- BORE SIZE METRIC:
- 81.50 MM
- BORE - OVERSIZE:
- +0,50 MM
- DISPLACEMENT:
- 1064 CC
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
MSRP: $166.10Now: $113.37Was: $174.41Qty in Cart: 0Quantity:Price:MSRP: $166.10Now: $113.37Was: $174.41Subtotal: -
WISECO Piston 791M08200
WISECO
$174.95WISECO Piston 791M08200Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, All Wiseco High-Performance pistons are priced with rings, wrist pins and circlips, Wiseco ring types...791M08200- SKU:
- 791M08200
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- DISPLACEMENT:
- 1077 CC
- RIDING STYLE:
- WATERCRAFT
- BORE - OVERSIZE:
- +1,00 MM
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE METRIC:
- +1.00 MM
- BORE SIZE METRIC:
- 82.00 MM
- PISTON MATERIAL:
- ALUMINUM
- UNITS:
- EACH
$174.95 -
WISECO Piston - +2.00 mm 786M05600
WISECO
$174.95WISECO Piston +2.00 mm 786M05600Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability, longevity and increased...786M05600- SKU:
- 786M05600
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- DISPLACEMENT:
- 124 CC
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 54.50 MM
- BORE - OVERSIZE:
- +2,00 MM
- BORE SIZE METRIC:
- 56.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE METRIC:
- +2.00 MM
- ENGINE TYPE:
- 2-STROKE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- STROKE LENGTH:
- 54,50 MM
$174.95 -
WISECO Piston - Standard - Kawasaki KX 125 788M05400
WISECO
$184.95WISECO Piston Standard Kawasaki KX 125 788M05400Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability,...788M05400- SKU:
- 788M05400
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
- BORE SIZE METRIC:
- 54.00 MM
- DISPLACEMENT:
- 125 CC
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- STROKE LENGTH:
- 54,50 MM
- STROKE LENGTH METRIC:
- 54.50 MM
$184.95 -
WISECO Piston 790M08100
WISECO
$159.95WISECO Piston 790M08100Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, All Wiseco High-Performance pistons are priced with rings, wrist pins and circlips, Wiseco ring types...790M08100- SKU:
- 790M08100
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 81.00 MM
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE:
- STANDARD
- DISPLACEMENT:
- 701 CC
- UNITS:
- EACH
- RIDING STYLE:
- WATERCRAFT
$159.95 -
WISECO Piston 790M08150
WISECO
$161.94WISECO Piston 790M08150Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, All Wiseco High-Performance pistons are priced with rings, wrist pins and circlips, Wiseco ring types...790M08150- SKU:
- 790M08150
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
$161.94Qty in Cart: 0Quantity:Price:$161.94Subtotal: -
WISECO Piston 809M08050
WISECO
$149.95WISECO Piston 809M08050Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, All Wiseco High-Performance pistons are priced with rings, wrist pins and circlips, Wiseco ring types...809M08050- SKU:
- 809M08050
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- BORE - OVERSIZE METRIC:
- +0.50 MM
- RIDING STYLE:
- WATERCRAFT
- BORE - OVERSIZE:
- +0,50 MM
- DISPLACEMENT:
- 1083 CC
- DISPLACEMENT:
- 752 CC
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON
- BORE SIZE METRIC:
- 80.50 MM
- UNITS:
- EACH
$149.95 -
WISECO Piston Kit with Gasket - KTM PK1901
WISECO
$329.95WISECO Piston Kit with Gasket KTM PK1901Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, Complete piston kits include High-Performance forged pistons, rings, wrist pins,...9031145- SKU:
- 9031145
- Availability:
- Ships Same Business Day
- Weight:
- 1.76 LBS
- BORE SIZE METRIC:
- 95.00 MM
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 63.40 MM
- TYPE:
- TOP END
- DISPLACEMENT:
- 449 CC
- PISTON DIAMETER METRIC:
- 94.95 MM
- RIDING STYLE:
- STREET
- SKIRT COATING:
- ARMORGLIDE®
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- FORGED SERIES
- BORE - OVERSIZE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 11.8:1
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$329.95 -
WISECO Piston Kit with Gasket - Yamaha PK1902
WISECO
$309.95WISECO Piston Kit with Gasket Yamaha PK1902Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, Complete piston kits include High-Performance forged pistons, rings, wrist pins,...9031146- SKU:
- 9031146
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 76.95 MM
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- BORE SIZE METRIC:
- 77.00 MM
- MODEL:
- FORGED SERIES
- STROKE LENGTH METRIC:
- 53.60 MM
$309.95 -
WISECO Piston Kit with Gasket - Kawasaki PK1904
WISECO
$169.95WISECO Piston Kit with Gasket Kawasaki PK1904Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, Complete piston kits include High-Performance forged pistons, rings, wrist pins,...9031148- SKU:
- 9031148
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 84.9 CC
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- REBUILD KIT
- PISTON DIAMETER METRIC:
- 48.45 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 45.80 MM
- UNITS:
- KIT
- BORE SIZE METRIC:
- 48.50 MM
- MODEL:
- PRO-LITE
- SKIRT COATING:
- NON-COATED
- TYPE:
- TOP END
$169.95 -
WISECO Piston Kit with Gasket - Kawasaki PK1905
WISECO
$169.95WISECO Piston Kit with Gasket Kawasaki PK1905Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, Complete piston kits include High-Performance forged pistons, rings, wrist pins,...9031149- SKU:
- 9031149
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE - OVERSIZE:
- +0,50 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 45.80 MM
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- BORE SIZE METRIC:
- 49.00 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 48.95 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- DISPLACEMENT:
- 84.9 CC
- MODEL:
- PRO-LITE
- SKIRT COATING:
- NON-COATED
- TYPE:
- TOP END
$169.95 -
WISECO Top End Bearing B1000
WISECO
$23.99WISECO Top End Bearing B1000Forged from high-silicon aluminum alloy for maximum strength and dependability, High-quality bearings are manufactured to the highest standards; case-hardened for maximum life and smooth operation at high engine speedsB1000- SKU:
- B1000
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- APPLICATION:
- PISTON
- INSIDE DIAMETER METRIC:
- 12 MM
- MATERIAL:
- SILICONE
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- ALUMINUM
- LENGTH METRIC:
- 15.8 MM
- OUTSIDE DIAMETER METRIC:
- 16 MM
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- UNITS:
- EACH
$23.99 -
WISECO Top End Bearing B1002
WISECO
$23.99WISECO Top End Bearing B1002Forged from high-silicon aluminum alloy for maximum strength and dependability, High-quality bearings are manufactured to the highest standards; case-hardened for maximum life and smooth operation at high engine speedsB1002- SKU:
- B1002
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- PISTON
- INSIDE DIAMETER METRIC:
- 18 MM
- MATERIAL:
- ALUMINUM
- MATERIAL:
- SILICONE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- OUTSIDE DIAMETER METRIC:
- 23 MM
- LENGTH METRIC:
- 23.8 MM
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- UNITS:
- EACH
$23.99 -
WISECO Top End Bearing B1005
WISECO
$23.99WISECO Top End Bearing B1005Forged from high-silicon aluminum alloy for maximum strength and dependability, High-quality bearings are manufactured to the highest standards; case-hardened for maximum life and smooth operation at high engine speedsB1005- SKU:
- B1005
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- LENGTH METRIC:
- 22.5 MM
- PRODUCT NAME:
- BEARING
- MATERIAL:
- ALUMINUM
- OUTSIDE DIAMETER METRIC:
- 21 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
- UNITS:
- EACH
- APPLICATION:
- PISTON
- INSIDE DIAMETER METRIC:
- 16 MM
- MATERIAL:
- SILICONE
$23.99 -
WISECO Top End Bearing B1006
WISECO
$23.99WISECO Top End Bearing B1006Forged from high-silicon aluminum alloy for maximum strength and dependability, High-quality bearings are manufactured to the highest standards; case-hardened for maximum life and smooth operation at high engine speedsB1006- SKU:
- B1006
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- LENGTH METRIC:
- 17.5 MM
- MATERIAL:
- ALUMINUM
- OUTSIDE DIAMETER METRIC:
- 18 MM
- TYPE:
- TOP END
- UNITS:
- EACH
- INSIDE DIAMETER METRIC:
- 14 MM
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- PISTON
- MATERIAL:
- SILICONE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$23.99 -
WISECO Top End Bearing B1008
WISECO
$23.99WISECO Top End Bearing B1008Forged from high-silicon aluminum alloy for maximum strength and dependability, High-quality bearings are manufactured to the highest standards; case-hardened for maximum life and smooth operation at high engine speedsB1008- SKU:
- B1008
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- TYPE:
- TOP END
- APPLICATION:
- PISTON
- MATERIAL:
- SILICONE
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- BEARING
- UNITS:
- EACH
- INSIDE DIAMETER METRIC:
- 18 MM
- LENGTH METRIC:
- 22 MM
- MATERIAL:
- ALUMINUM
- OUTSIDE DIAMETER METRIC:
- 22 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
$23.99
