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 Kit with Gaskets PK1344
WISECO
$204.95WISECO Piston Kit with Gaskets PK1344Most 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, circlips...9030283- SKU:
- 9030283
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- PISTON DIAMETER METRIC:
- 53.95 MM
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 54.50 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 54.00 MM
- DISPLACEMENT:
- 125 CC
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
$204.95 -
WISECO Piston Kit with Gaskets PK1257
WISECO
$219.95WISECO Piston Kit with Gaskets PK1257Most 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, circlips...9030284- SKU:
- 9030284
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 54.50 MM
- DISPLACEMENT:
- 125 CC
- MODEL:
- PRO-LITE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON DIAMETER METRIC:
- 53.95 MM
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- BORE SIZE METRIC:
- 54.00 MM
- ENGINE TYPE:
- 2-STROKE
- TYPE:
- TOP END
$219.95 -
WISECO Piston Kit with Gaskets PK1185
WISECO
$214.95WISECO Piston Kit with Gaskets PK1185Forged from high-silicon aluminum alloy for maximum strength and dependability, Contain all necessary components for overboring or rebuilding your top end, Feature forged pistons, rings, wrist pins, circlips, and top...9030285- SKU:
- 9030285
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- BORE - OVERSIZE METRIC:
- +5.00 MM
- COOLING SYSTEM:
- LIQUID COOLED
- UNITS:
- EACH
- BORE SIZE METRIC:
- 52.00 MM
- MODEL:
- RACER'S CHOICE
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE - OVERSIZE:
- +5,00 MM
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 47.80 MM
- DISPLACEMENT:
- 101,5 CC
- PISTON MATERIAL:
- ALUMINUM
$214.95Qty in Cart: 0Quantity:Price:$214.95Subtotal: -
WISECO Piston Kit with Gaskets PK1265
WISECO
$224.95WISECO Piston Kit with Gaskets PK1265Most 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, circlips...9030286- SKU:
- 9030286
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 54.50 MM
- UNITS:
- KIT
- BORE SIZE METRIC:
- 54.00 MM
- DISPLACEMENT:
- 125 CC
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- PISTON DIAMETER METRIC:
- 53.95 MM
- SKIRT COATING:
- NON-COATED
$224.95 -
WISECO Piston Kit with Gaskets PK1339
WISECO
$264.95WISECO Piston Kit with Gaskets PK1339Most 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, circlips...9030287- SKU:
- 9030287
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON DIAMETER METRIC:
- 66.94 MM
- PRODUCT NAME:
- REBUILD KIT
- BORE - OVERSIZE:
- STANDARD
- DISPLACEMENT:
- 246 CC
- ENGINE TYPE:
- 2-STROKE
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 70.80 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- BORE SIZE METRIC:
- 67.00 MM
- MODEL:
- PRO-LITE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
$264.95Qty in Cart: 0Quantity:Price:$264.95Subtotal: -
WISECO Piston Kit with Gaskets PK1348
WISECO
$209.95WISECO Piston Kit with Gaskets PK1348Most 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, circlips...9030288- SKU:
- 9030288
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- DISPLACEMENT:
- 124 CC
- STROKE LENGTH METRIC:
- 54.50 MM
- BORE - OVERSIZE:
- STANDARD
- BORE SIZE METRIC:
- 54.00 MM
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- MODEL:
- PRO-LITE
- PISTON DIAMETER METRIC:
- 53.95 MM
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
$209.95Qty in Cart: 0Quantity:Price:$209.95Subtotal: -
WISECO Piston Kit with Gaskets PK1150
WISECO
$179.95WISECO Piston Kit with Gaskets PK1150Most 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, circlips...9030289- SKU:
- 9030289
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MODEL:
- PRO-LITE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- DISPLACEMENT:
- 82 CC
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 45.80 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- BORE SIZE METRIC:
- 48.00 MM
- PISTON DIAMETER METRIC:
- 47.95 MM
- PRODUCT NAME:
- REBUILD KIT
$179.95 -
WISECO Piston Kit with Gaskets PK1174
WISECO
$209.95WISECO Piston Kit with Gaskets PK1174Most 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, circlips...9030291- SKU:
- 9030291
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 54.50 MM
- MODEL:
- PRO-LITE
- PISTON DIAMETER METRIC:
- 54.45 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
- DISPLACEMENT:
- 124 CC
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 54.50 MM
- ENGINE TYPE:
- 2-STROKE
- SKIRT COATING:
- NON-COATED
- PRODUCT NAME:
- REBUILD KIT
$209.95Qty in Cart: 0Quantity:Price:$209.95Subtotal: -
WISECO Piston Kit with Gaskets PK1128
WISECO
$259.95WISECO Piston Kit with Gaskets PK1128Most 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, circlips...9030292- SKU:
- 9030292
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- BORE SIZE METRIC:
- 66.40 MM
- PISTON DIAMETER METRIC:
- 66.36 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 249 CC
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 72.00 MM
$259.95Qty in Cart: 0Quantity:Price:$259.95Subtotal: -
WISECO Piston - Honda - Standard 431M07000
WISECO
$203.95WISECO Piston Honda Standard 431M07000Forged 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...431M07000- SKU:
- 431M07000
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PISTON DIAMETER METRIC:
- 69.95 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 248 CC
- ENGINE TYPE:
- 2-STROKE
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 64.40 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 70.00 MM
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
$203.95 -
WISECO Piston - Honda - .50mm 431M07050
WISECO
$203.95WISECO Piston Honda .50mm 431M07050Forged 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...431M07050- SKU:
- 431M07050
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE - OVERSIZE METRIC:
- +0.50 MM
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH METRIC:
- 64.40 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- BORE - OVERSIZE:
- +0,50 MM
- DISPLACEMENT:
- 248 CC
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- NON-COATED
- BORE SIZE METRIC:
- 70.50 MM
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 70.45 MM
- UNITS:
- KIT
$203.95Qty in Cart: 0Quantity:Price:$203.95Subtotal: -
WISECO Piston - Honda - 1mm 431M07100
WISECO
$199.95WISECO Piston Honda 1mm 431M07100Forged 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...431M07100- SKU:
- 431M07100
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- DISPLACEMENT:
- 248 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 70.95 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 64.40 MM
- BORE - OVERSIZE:
- +1,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- BORE SIZE METRIC:
- 71.00 MM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
$199.95 -
WISECO Piston - Honda - 1.5mm 431M07150
WISECO
$224.95WISECO Piston Honda 1.5mm 431M07150Forged 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...431M07150- SKU:
- 431M07150
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE SIZE METRIC:
- 71.50 MM
- DISPLACEMENT:
- 248 CC
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE METRIC:
- +1.50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 71.45 MM
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH METRIC:
- 64.40 MM
- BORE - OVERSIZE:
- +1,50 MM
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
$224.95 -
WISECO Piston - Honda - 2mm 431M07200
WISECO
$224.95WISECO Piston Honda 2mm 431M07200Forged 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...431M07200- SKU:
- 431M07200
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- DISPLACEMENT:
- 248 CC
- PISTON DIAMETER METRIC:
- 71.95 MM
- SKIRT COATING:
- NON-COATED
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +2.00 MM
- BORE SIZE METRIC:
- 72.00 MM
- STROKE LENGTH METRIC:
- 64.40 MM
- BORE - OVERSIZE:
- +2,00 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
$224.95 -
WISECO Piston - 1mm 4286M08500
WISECO
$184.95WISECO Piston 1mm 4286M08500Forged 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...4286M08500- SKU:
- 4286M08500
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- DISPLACEMENT:
- 339 CC
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH METRIC:
- 61.30 MM
- BORE SIZE METRIC:
- 85.00 MM
- ENGINE TYPE:
- 4-STROKE
- BORE - OVERSIZE:
- +1,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- PISTON DIAMETER METRIC:
- 84.95 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
$184.95 -
WISECO Piston - Standard - Kawasaki KX 500 575M08600
WISECO
$234.95WISECO Piston Standard Kawasaki KX 500 575M08600Forged 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,...575M08600- SKU:
- 575M08600
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 86.00 MM
- UNITS:
- EACH
- BORE SIZE METRIC:
- 86.00 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- STROKE LENGTH:
- 86,00 MM
- DISPLACEMENT:
- 499 CC
$234.95 -
WISECO Piston - +.50 mm - Kawasaki KX 500 575M08650
WISECO
$234.95WISECO Piston +.50 mm Kawasaki KX 500 575M08650Forged 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...575M08650- SKU:
- 575M08650
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- BORE SIZE METRIC:
- 86.50 MM
- DISPLACEMENT:
- 499 CC
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- STROKE LENGTH:
- 86,00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 86.00 MM
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
$234.95 -
WISECO Piston - +1.00 mm - Kawasaki KX 500 575M08700
WISECO
$234.95WISECO Piston +1.00 mm Kawasaki KX 500 575M08700Forged 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,...575M08700- SKU:
- 575M08700
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- BORE - OVERSIZE:
- +1,00 MM
- DISPLACEMENT:
- 499 CC
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE METRIC:
- +1.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH METRIC:
- 86.00 MM
- UNITS:
- EACH
- STROKE LENGTH:
- 86,00 MM
- BORE SIZE METRIC:
- 87.00 MM
- RIDING STYLE:
- OFF-ROAD
$234.95 -
WISECO Piston - Standard - Kawasaki KX 125 578M05600
WISECO
$154.95WISECO Piston Standard Kawasaki KX 125 578M05600Forged 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,...578M05600- SKU:
- 578M05600
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH:
- 50,6 MM
- STROKE LENGTH METRIC:
- 50.60 MM
- UNITS:
- EACH
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 56.00 MM
- DISPLACEMENT:
- 124 CC
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
$154.95Qty in Cart: 0Quantity:Price:$154.95Subtotal: -
WISECO Piston - Standard - Yamaha IT 250/YTZ 250 Tri-Z 515M06800
WISECO
$204.95WISECO Piston Standard Yamaha IT 250/YTZ 250 Tri-Z 515M06800Forged 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,...515M06800- SKU:
- 515M06800
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- DISPLACEMENT:
- 246,8 CC
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 68.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH:
- 68,00 MM
- UNITS:
- EACH
- STROKE LENGTH METRIC:
- 68.00 MM
- PISTON MATERIAL:
- FORGED
$204.95Qty in Cart: 0Quantity:Price:$204.95Subtotal:
