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 - KTM 65 SX/XC 746M04500
WISECO
$119.95WISECO Piston Standard KTM 65 SX/XC 746M04500Forged 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...746M04500- SKU:
- 746M04500
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- STROKE LENGTH:
- 40,00 MM
- STROKE LENGTH METRIC:
- 40.00 MM
- DISPLACEMENT:
- 63,58 CC
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 45.00 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
$119.95 -
WISECO Piston - +2.00 mm - KTM 65 SX/XC 746M04700
WISECO
$134.95WISECO Piston +2.00 mm KTM 65 SX/XC 746M04700Forged 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...746M04700- SKU:
- 746M04700
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- DISPLACEMENT:
- 63,58 CC
- STROKE LENGTH:
- 40,00 MM
- STROKE LENGTH METRIC:
- 40.00 MM
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE METRIC:
- +2.00 MM
- ENGINE TYPE:
- 2-STROKE
- BORE - OVERSIZE:
- +2,00 MM
- BORE SIZE METRIC:
- 47.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
$134.95 -
WISECO Piston - Standard - KTM 380 SX/EXC 748M07800
WISECO
$244.95WISECO Piston Standard KTM 380 SX/EXC 748M07800Forged 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...748M07800- SKU:
- 748M07800
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH:
- 77,00 MM
- BORE SIZE METRIC:
- 78.00 MM
- DISPLACEMENT:
- 368 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- STROKE LENGTH METRIC:
- 77.00 MM
- UNITS:
- EACH
$244.95 -
WISECO Piston - +1.00 - KTM 380 SX/EXC 748M07900
WISECO
$244.95WISECO Piston +1.00 KTM 380 SX/EXC 748M07900Forged 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...748M07900- SKU:
- 748M07900
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- BORE - OVERSIZE:
- +1,00 MM
- DISPLACEMENT:
- 368 CC
- STROKE LENGTH METRIC:
- 77.00 MM
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH:
- 77,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- BORE SIZE METRIC:
- 79.00 MM
- PISTON MATERIAL:
- FORGED
$244.95 -
WISECO Piston - Standard - Gas Gas MC 125/EC 125/Yamaha YZ 125 726M05400
WISECO
$154.95WISECO Piston Standard Gas Gas MC 125/EC 125/Yamaha YZ 125 726M05400Forged 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,...726M05400- SKU:
- 726M05400
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BORE SIZE METRIC:
- 54.00 MM
- STROKE LENGTH:
- 54,50 MM
- PRODUCT NAME:
- PISTON
- STROKE LENGTH METRIC:
- 54.50 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- UNITS:
- EACH
- DISPLACEMENT:
- 124 CC
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
$154.95 -
WISECO Piston - +0.50 mm - Gas Gas MC 125/EC 125/Yamaha YZ 125 726M05450
WISECO
$154.95WISECO Piston +0.50 mm Gas Gas MC 125/EC 125/Yamaha YZ 125 726M05450Forged 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,...726M05450- SKU:
- 726M05450
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BORE - OVERSIZE:
- +0,50 MM
- DISPLACEMENT:
- 124 CC
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 54.50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 54.50 MM
- STROKE LENGTH:
- 54,50 MM
- ENGINE TYPE:
- 2-STROKE
- UNITS:
- EACH
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
$154.95 -
WISECO Piston - Standard - Suzuki RM 125 641M05400
WISECO
$154.95WISECO Piston Standard Suzuki RM 125 641M05400Forged 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...641M05400- SKU:
- 641M05400
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- DISPLACEMENT:
- 123 CC
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 54.00 MM
- BORE SIZE METRIC:
- 54.00 MM
- STROKE LENGTH:
- 54,00 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
$154.95 -
WISECO Piston - +.50 mm - Suzuki RM 125 641M05450
WISECO
$154.95WISECO Piston +.50 mm Suzuki RM 125 641M05450Forged 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...641M05450- SKU:
- 641M05450
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- BORE SIZE METRIC:
- 54.50 MM
- STROKE LENGTH METRIC:
- 54.00 MM
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- DISPLACEMENT:
- 125 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH:
- 54,00 MM
$154.95 -
WISECO Piston - +1.00 mm - Suzuki RM 125 641M05500
WISECO
$154.95WISECO Piston +1.00 mm Suzuki RM 125 641M05500Forged 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...641M05500- SKU:
- 641M05500
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- STROKE LENGTH METRIC:
- 54.00 MM
- BORE - OVERSIZE:
- +1,00 MM
- BORE SIZE METRIC:
- 55.00 MM
- STROKE LENGTH:
- 54,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- DISPLACEMENT:
- 123 CC
- ENGINE TYPE:
- 2-STROKE
$154.95 -
WISECO Piston - Standard - Suzuki RM/RMX 250 642M06700
WISECO
$199.95WISECO Piston Standard Suzuki RM/RMX 250 642M06700Forged 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,...642M06700- SKU:
- 642M06700
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
- STROKE LENGTH METRIC:
- 70.80 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- STROKE LENGTH:
- 70,8 MM
- UNITS:
- EACH
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- BORE SIZE METRIC:
- 67.00 MM
- DISPLACEMENT:
- 246 CC
- RIDING STYLE:
- OFF-ROAD
$199.95Qty in Cart: 0Quantity:Price:$199.95Subtotal: -
WISECO Piston - +.50 mm - Suzuki RM/RMX 250 642M06750
WISECO
$199.95WISECO Piston +.50 mm Suzuki RM/RMX 250 642M06750Forged 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,...642M06750- SKU:
- 642M06750
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BORE - OVERSIZE:
- +0,50 MM
- DISPLACEMENT:
- 246 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH:
- 70,8 MM
- STROKE LENGTH METRIC:
- 70.80 MM
- UNITS:
- EACH
- BORE SIZE METRIC:
- 67.50 MM
- ENGINE TYPE:
- 2-STROKE
- BORE - OVERSIZE METRIC:
- +0.50 MM
$199.95 -
WISECO Piston - +1.00 mm - Suzuki RM/RMX 250 642M06800
WISECO
$199.95WISECO Piston +1.00 mm Suzuki RM/RMX 250 642M06800Forged 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,...642M06800- SKU:
- 642M06800
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BORE - OVERSIZE:
- +1,00 MM
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE METRIC:
- +1.00 MM
- BORE SIZE METRIC:
- 68.00 MM
- DISPLACEMENT:
- 246 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- STROKE LENGTH:
- 70,8 MM
- STROKE LENGTH METRIC:
- 70.80 MM
- UNITS:
- EACH
- PISTON MATERIAL:
- FORGED
$199.95Qty in Cart: 0Quantity:Price:$199.95Subtotal: -
WISECO Piston 643M04700
WISECO
$134.95WISECO Piston 643M04700Forged from high-silicon alloy for maximum strength and dependability643M04700- SKU:
- 643M04700
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- DISPLACEMENT:
- 82,9 CC
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 47.80 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- BORE SIZE METRIC:
- 47.00 MM
- MODEL:
- PRO-LITE
- PISTON MATERIAL:
- ALUMINUM ALLOY
$134.95 -
WISECO Piston - +.50 mm - Honda CR80R 643M04750
WISECO
$134.95WISECO Piston +.50 mm Honda CR80R 643M04750Forged 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...643M04750- SKU:
- 643M04750
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- BORE - OVERSIZE:
- +0,50 MM
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON
- STROKE LENGTH:
- 47,80 MM
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 47.50 MM
- DISPLACEMENT:
- 82,9 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 47.80 MM
- PISTON MATERIAL:
- FORGED
$134.95Qty in Cart: 0Quantity:Price:$134.95Subtotal: -
WISECO Piston - +1.00 mm - Honda CR80R 643M04800
WISECO
$134.95WISECO Piston +1.00 mm Honda CR80R 643M04800Forged 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...643M04800- SKU:
- 643M04800
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BORE - OVERSIZE METRIC:
- +1.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 47.80 MM
- UNITS:
- EACH
- BORE - OVERSIZE:
- +1,00 MM
- BORE SIZE METRIC:
- 48.00 MM
- DISPLACEMENT:
- 82,9 CC
- ENGINE TYPE:
- 2-STROKE
- STROKE LENGTH:
- 47,80 MM
$134.95Qty in Cart: 0Quantity:Price:$134.95Subtotal: -
WISECO Piston - Standard - Kawasaki KX 125 640M05400
WISECO
$159.95WISECO Piston Standard Kawasaki KX 125 640M05400Forged 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,...640M05400- SKU:
- 640M05400
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH METRIC:
- 54.50 MM
- DISPLACEMENT:
- 124 CC
- STROKE LENGTH:
- 54,50 MM
- BORE SIZE METRIC:
- 54.00 MM
- RIDING STYLE:
- OFF-ROAD
$159.95 -
WISECO Piston - +1.00 mm - Kawasaki KX 125 640M05500
WISECO
$159.95WISECO Piston +1.00 mm Kawasaki KX 125 640M05500Forged 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,...640M05500- SKU:
- 640M05500
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- ENGINE TYPE:
- 2-STROKE
- BORE - OVERSIZE METRIC:
- +1.00 MM
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- +1,00 MM
- BORE SIZE METRIC:
- 55.00 MM
- DISPLACEMENT:
- 124 CC
- STROKE LENGTH:
- 54,50 MM
- STROKE LENGTH METRIC:
- 54.50 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
$159.95 -
WISECO Piston 663M07800
WISECO
$159.95WISECO Piston 663M07800Most 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...663M07800- SKU:
- 663M07800
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- DISPLACEMENT:
- 650 CC
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- UNITS:
- EACH
- BORE SIZE METRIC:
- 78.00 MM
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- WATERCRAFT
$159.95 -
WISECO Piston 663M07850
WISECO
$159.95WISECO Piston 663M07850Most 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...663M07850- SKU:
- 663M07850
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- DISPLACEMENT:
- 658 CC
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- EACH
- BORE SIZE METRIC:
- 78.50 MM
- PRODUCT NAME:
- PISTON
$159.95 -
WISECO Piston 663M07900
WISECO
$159.95WISECO Piston 663M07900Most 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...663M07900- SKU:
- 663M07900
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- RIDING STYLE:
- WATERCRAFT
- DISPLACEMENT:
- 666 CC
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- +1.00 MM
- BORE SIZE METRIC:
- 79.00 MM
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE:
- +1,00 MM
$159.95
