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 - Yamaha - .50mm 451M08550
WISECO
$234.95WISECO Piston Yamaha .50mm 451M08550Forged 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...451M08550- SKU:
- 451M08550
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- DISPLACEMENT:
- 465 CC
- MODEL:
- FORGED SERIES
- STROKE LENGTH METRIC:
- 82.00 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 85.42 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- +0,50 MM
- BORE SIZE METRIC:
- 85.50 MM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
$234.95 -
WISECO Piston Kit - Racer Elite RE920M04500
WISECO
$139.95WISECO Piston Kit Racer Elite RE920M04500The most advanced forged 2-stroke piston available provides premium performance and durability, 2000 Series alloy provides extreme strength for extreme conditions, ArmorPlating™ for protection from harmful...9105100- SKU:
- 9105100
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 2000 SERIES ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RACER ELITE
- UNITS:
- KIT
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 45.00 MM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORFIT™
$139.95 -
WISECO Piston Kit - Racer Elite RE909M05800
WISECO
$204.95WISECO Piston Kit Racer Elite RE909M05800The most advanced forged 2-stroke piston available provides premium performance and durability, 2000 Series alloy provides extreme strength for extreme conditions, ArmorPlating™ for protection from harmful...9105103- SKU:
- 9105103
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE SIZE METRIC:
- 58.00 MM
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORFIT™
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- 2000 SERIES ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RACER ELITE
- UNITS:
- KIT
- PISTON MATERIAL:
- FORGED
$204.95 -
WISECO Piston Kit with Gaskets PK1303
WISECO
$190.51WISECO Piston Kit with Gaskets PK1303Most 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...9030224- SKU:
- 9030224
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
$190.51Qty in Cart: 0Quantity:Price:$190.51Subtotal: -
WISECO Piston Kit with Gaskets PK1350
WISECO
$209.95WISECO Piston Kit with Gaskets PK1350Most 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...9030228- SKU:
- 9030228
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- MODEL:
- PRO-LITE
- PISTON DIAMETER METRIC:
- 54.95 MM
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 55.00 MM
- DISPLACEMENT:
- 124 CC
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 54.50 MM
- BORE - OVERSIZE:
- +1,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
$209.95Qty in Cart: 0Quantity:Price:$209.95Subtotal: -
WISECO Piston Kit with Gaskets PK1277
WISECO
$179.95WISECO Piston Kit with Gaskets PK1277Most 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...9030229- SKU:
- 9030229
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 47.97 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 45.00 MM
- BORE - OVERSIZE:
- +0,50 MM
- COMPRESSION RATIO IMPERIAL:
- 9.7:1
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 48.00 MM
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- DISPLACEMENT:
- 79.7 CC
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
$179.95 -
WISECO Piston Kit with Gaskets PK1227
WISECO
$179.95WISECO Piston Kit with Gaskets PK1227Most 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...9030232- SKU:
- 9030232
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- BORE - OVERSIZE:
- +1,50 MM
- BORE - OVERSIZE METRIC:
- +1.50 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
- BORE SIZE METRIC:
- 49.00 MM
- DISPLACEMENT:
- 79.7 CC
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 45.00 MM
- PISTON DIAMETER METRIC:
- 48.97 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- COMPRESSION RATIO IMPERIAL:
- 9.7:1
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- REBUILD KIT
$179.95 -
WISECO Piston Kit with Gaskets PK1255
WISECO
$219.00WISECO Piston Kit with Gaskets PK1255Most 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...9030234- SKU:
- 9030234
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$219.00Qty in Cart: 0Quantity:Price:$219.00Subtotal: -
WISECO Piston Kit with Gaskets PK1118
WISECO
$204.95WISECO Piston Kit with Gaskets PK1118Most 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...9030235- SKU:
- 9030235
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- BORE SIZE METRIC:
- 66.50 MM
- PISTON DIAMETER METRIC:
- 66.45 MM
- TYPE:
- TOP END
- BORE - OVERSIZE:
- +1,00 MM
- DISPLACEMENT:
- 192 CC
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 57.80 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- REBUILD KIT
$204.95 -
WISECO Piston Kit with Gaskets PK1177
WISECO
$164.95WISECO Piston Kit with Gaskets PK1177Most 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...9030304- SKU:
- 9030304
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- BORE SIZE METRIC:
- 44.50 MM
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 41.60 MM
- DISPLACEMENT:
- 64 CC
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 44.45 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
$164.95 -
WISECO Piston Kit with Gaskets PK1187
WISECO
$164.95WISECO Piston Kit with Gaskets PK1187Most 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...9030306- SKU:
- 9030306
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 45.80 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 48.50 MM
- DISPLACEMENT:
- 84.9 CC
- PISTON DIAMETER METRIC:
- 48.45 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MODEL:
- PRO-LITE
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
$164.95 -
WISECO Piston Kit with Gaskets PK1195
WISECO
$254.95WISECO Piston Kit with Gaskets PK1195Most 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...9030307- SKU:
- 9030307
- Availability:
- Ships Same Business Day
- Weight:
- 1.39 LBS
- DISPLACEMENT:
- 249 CC
- PRODUCT NAME:
- REBUILD KIT
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- SKIRT COATING:
- NON-COATED
- BORE SIZE METRIC:
- 66.40 MM
- MODEL:
- PRO-LITE
- PISTON DIAMETER METRIC:
- 66.36 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
$254.95 -
WISECO Piston Kit with Gaskets PK1198
WISECO
$244.95WISECO Piston Kit with Gaskets PK1198Most 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...9030308- SKU:
- 9030308
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- PRODUCT NAME:
- REBUILD KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 66.36 MM
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- DISPLACEMENT:
- 249 CC
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE SIZE METRIC:
- 66.40 MM
- MODEL:
- PRO-LITE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
$244.95 -
WISECO Piston Kit with Gaskets PK1173
WISECO
$209.95WISECO Piston Kit with Gaskets PK1173Most 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...9030309- SKU:
- 9030309
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- DISPLACEMENT:
- 124 CC
- STROKE LENGTH METRIC:
- 54.50 MM
- 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 PK1154
WISECO
$174.95WISECO Piston Kit with Gaskets PK1154Most 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...9030310- SKU:
- 9030310
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- BORE SIZE METRIC:
- 52.50 MM
- PRODUCT NAME:
- REBUILD KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 99 CC
- ENGINE TYPE:
- 2-STROKE
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- PISTON DIAMETER METRIC:
- 52.45 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 45.80 MM
- MODEL:
- PRO-LITE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
$174.95Qty in Cart: 0Quantity:Price:$174.95Subtotal: -
WISECO Piston Kit with Gaskets PK1168
WISECO
$254.95WISECO Piston Kit with Gaskets PK1168Most 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...9030311- SKU:
- 9030311
- Availability:
- Ships Same Business Day
- Weight:
- 1.38 LBS
- DISPLACEMENT:
- 249 CC
- PRODUCT NAME:
- REBUILD KIT
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 66.36 MM
- SKIRT COATING:
- NON-COATED
- BORE SIZE METRIC:
- 66.40 MM
- MODEL:
- PRO-LITE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
$254.95 -
WISECO Piston Kit with Gaskets PK1667
WISECO
$149.95WISECO Piston Kit with Gaskets PK1667Most 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...9030928- SKU:
- 9030928
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PISTON DIAMETER METRIC:
- 41.95 MM
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 37.80 MM
- BORE SIZE METRIC:
- 42.00 MM
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- PRO-LITE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +1.00 MM
- DISPLACEMENT:
- 49 CC
- RIDING STYLE:
- STREET
- SKIRT COATING:
- NON-COATED
- BORE - OVERSIZE:
- +1,00 MM
$149.95 -
WISECO Piston Kit with Gaskets PK1704
WISECO
$274.95WISECO Piston Kit with Gaskets PK1704Forged 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...9030929- SKU:
- 9030929
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- COOLING SYSTEM:
- LIQUID COOLED
- DISPLACEMENT:
- 249,3 CC
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 66.40 MM
- PISTON MATERIAL:
- ALUMINUM
- PISTON MATERIAL:
- FORGED
- MODEL:
- RACER'S CHOICE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- EACH
$274.95Qty in Cart: 0Quantity:Price:$274.95Subtotal: -
WISECO Piston Kit with Gaskets PK1762
WISECO
$179.95WISECO Piston Kit with Gaskets PK1762Most 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...9030930- SKU:
- 9030930
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- DISPLACEMENT:
- 84.9 CC
- ENGINE TYPE:
- 2-STROKE
- TYPE:
- TOP END
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- MODEL:
- GP SERIES
- PRODUCT NAME:
- REBUILD KIT
- SKIRT COATING:
- ARMORGLIDE®
- BORE SIZE METRIC:
- 48.50 MM
- PISTON DIAMETER METRIC:
- 48.45 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 45.80 MM
- UNITS:
- KIT
$179.95Qty in Cart: 0Quantity:Price:$179.95Subtotal: -
WISECO Piston Kit with Gaskets PK1596
WISECO
$294.95WISECO Piston Kit with Gaskets PK1596Most 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...9030931- SKU:
- 9030931
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- PRODUCT NAME:
- REBUILD KIT
- BORE SIZE METRIC:
- 77.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 76.96 MM
- TYPE:
- TOP END
- DISPLACEMENT:
- 250 CC
- MODEL:
- FORGED SERIES
- STROKE LENGTH METRIC:
- 53.60 MM
$294.95
