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 - +0.50 mm - XR50R/CRF50F/Z50R 4798M03950
WISECO
$119.95WISECO Piston Kit +0.50 mm XR50R/CRF50F/Z50R 4798M03950Pistons come without gasket kit9100203- SKU:
- 9100203
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- BORE SIZE METRIC:
- 39.50 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- DISPLACEMENT:
- 50.7 CC
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- STROKE LENGTH METRIC:
- 41.40 MM
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
WISECO Piston Kit - +2.10 mm - YZ 250/X 804M06850
WISECO
$224.95WISECO Piston Kit +2.10 mm YZ 250/X 804M06850Pistons come without gasket kit9100207- SKU:
- 9100207
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE SIZE METRIC:
- 68.50 MM
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- PRO-LITE
- BORE - OVERSIZE:
- +2,10 MM
- BORE - OVERSIZE METRIC:
- +2.10 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 265 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$224.95 -
WISECO Piston Kit with Gasket - Suzuki PK1878
WISECO
$324.95WISECO Piston Kit with Gasket Suzuki PK1878Most 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,...9031167- SKU:
- 9031167
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 77.00 MM
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- FORGED SERIES
- STROKE LENGTH METRIC:
- 53.60 MM
- DISPLACEMENT:
- 250 CC
- SKIRT COATING:
- ARMORGLIDE®
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE - OVERSIZE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.9:1
- PISTON DIAMETER METRIC:
- 76.96 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$324.95 -
WISECO Piston Kit with Gasket - KTM PK1894
WISECO
$344.95WISECO Piston Kit with Gasket KTM PK1894Most 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,...9031168- SKU:
- 9031168
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- BORE SIZE METRIC:
- 78.00 MM
- DISPLACEMENT:
- 250 CC
- PISTON DIAMETER METRIC:
- 77.96 MM
- PRODUCT NAME:
- REBUILD KIT
- SKIRT COATING:
- ARMORGLIDE®
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- FORGED SERIES
- STROKE LENGTH METRIC:
- 52.30 MM
- COMPRESSION RATIO IMPERIAL:
- 13.9:1
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
$344.95 -
WISECO Piston Kit - Sea Doo WK1212
WISECO
$469.95WISECO Piston Kit Sea Doo WK1212Most 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 and...9031171- SKU:
- 9031171
- Availability:
- Ships Same Business Day
- Weight:
- 4.25 LBS
- BORE - OVERSIZE:
- +0,50 MM
- DISPLACEMENT:
- 960 CC
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- UNITS:
- KIT
- BORE SIZE METRIC:
- 88.50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 88.40 MM
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- WATERCRAFT
- BORE - OVERSIZE METRIC:
- +0.50 MM
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- TYPE:
- TOP END
$469.95 -
WISECO Piston Kit - Yamaha - XT/TT 4045M08750
WISECO
$237.50WISECO Piston Kit Yamaha XT/TT 4045M08750Pistons come without gasket kit9101654- SKU:
- 9101654
- Availability:
- Ships Same Business Day
- Weight:
- 1.23 LBS
$237.50Qty in Cart: 0Quantity:Price:$237.50Subtotal: -
WISECO Cam Chain CC032
WISECO
$79.95WISECO Cam Chain CC032Made from premium materials to reduce friction and increase service life, "M" style chain gives you maximum strength and durability, Wiseco's in-house engineering ensures its cam chains exceed OEM specifications and tolerance9250650- SKU:
- 9250650
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- CHAIN
- TYPE:
- CAM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 92RH2015
- NUMBER OF LINKS:
- 108
$79.95 -
WISECO Cam Chain CC033
WISECO
$104.95WISECO Cam Chain CC033Made from premium materials to reduce friction and increase service life, "M" style chain gives you maximum strength and durability, Wiseco's in-house engineering ensures its cam chains exceed OEM specifications and tolerance9250651- SKU:
- 9250651
- Availability:
- Ships Same Business Day
- Weight:
- 0.59 LBS
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CAM
- PRODUCT NAME:
- CHAIN
- CHAIN SIZE:
- 98XRH2015
- NUMBER OF LINKS:
- 112
$104.95 -
WISECO Cam Chain CC035
WISECO
$92.32WISECO Cam Chain CC035Made from premium materials to reduce friction and increase service life, "M" style chain gives you maximum strength and durability, Wiseco's in-house engineering ensures its cam chains exceed OEM specifications and tolerance9250653- SKU:
- 9250653
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TYPE:
- CAM
- CHAIN SIZE:
- 92RH2015
- PRODUCT NAME:
- CHAIN
- NUMBER OF LINKS:
- 110
$92.32Qty in Cart: 0Quantity:Price:$92.32Subtotal: -
WISECO Cam Chain CC036
WISECO
$94.95WISECO Cam Chain CC036Made from premium materials to reduce friction and increase service life, "M" style chain gives you maximum strength and durability, Wiseco's in-house engineering ensures its cam chains exceed OEM specifications and tolerance9250654- SKU:
- 9250654
- Availability:
- Ships Same Business Day
- Weight:
- 0.52 LBS
- NUMBER OF LINKS:
- 114
- UNITS:
- EACH
- CHAIN SIZE:
- 92RH2015
- PRODUCT NAME:
- CHAIN
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CAM
$94.95 -
WISECO Top End Bearing - 19 mm x 24.8 mm B1036
WISECO
$23.99WISECO Top End Bearing 19 mm x 24.8 mm B1036Forged 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...9240123- SKU:
- 9240123
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- SILICONE
- OUTSIDE DIAMETER METRIC:
- 24 MM
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- ALUMINUM
- UNITS:
- EACH
- INSIDE DIAMETER METRIC:
- 19 MM
- LENGTH METRIC:
- 24.8 MM
- PRODUCT NAME:
- BEARING
- APPLICATION:
- PISTON
$23.99 -
WISECO Top End Bearing - 20 mm x 25 mm x 21.8 mm B1039
WISECO
$23.99WISECO Top End Bearing 20 mm x 25 mm x 21.8 mm B1039Forged 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...9240124- SKU:
- 9240124
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- PISTON
- INSIDE DIAMETER METRIC:
- 20 MM
- MATERIAL:
- ALUMINUM
- OUTSIDE DIAMETER METRIC:
- 25 MM
- UNITS:
- EACH
- LENGTH METRIC:
- 21.8 MM
- PRODUCT NAME:
- BEARING
- MATERIAL:
- SILICONE
- RIDING STYLE:
- WATERCRAFT
$23.99 -
WISECO Top End Bearing - 12 mm x 16 mm x 14.8 mm B1043
WISECO
$23.99WISECO Top End Bearing 12 mm x 16 mm x 14.8 mm B1043Forged 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...9240125- SKU:
- 9240125
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- PISTON
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- INSIDE DIAMETER METRIC:
- 14.8 MM
- LENGTH METRIC:
- 12 MM
- MATERIAL:
- ALUMINUM
- MATERIAL:
- SILICONE
- OUTSIDE DIAMETER METRIC:
- 16 MM
$23.99 -
WISECO Connecting Rod Kit - Racer Elite WPR1334
WISECO
$447.06WISECO Connecting Rod Kit Racer Elite WPR1334Billet machined connecting rod kit, Made in the U.S.A.9230590- SKU:
- 9230590
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- UNITS:
- KIT
- TYPE:
- RACER ELITE
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
$447.06 -
WISECO Connecting Rod Kit - Racer Elite WPR1348
WISECO
$447.06WISECO Connecting Rod Kit Racer Elite WPR1348Billet machined connecting rod kit, Made in the U.S.A.9230591- SKU:
- 9230591
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
$447.06Qty in Cart: 0Quantity:Price:$447.06Subtotal: -
WISECO Engine Rebuild Kit PWR116B-100
WISECO
$563.66WISECO Engine Rebuild Kit PWR116B-100Includes all top and bottom-end components for a complete engine rebuild, 4-stroke kits include a premium forged piston kit with stock compression ratio and a high-quality cam chain, 2-stroke kits include a Pro-Lite®...9031603- SKU:
- 9031603
- Availability:
- Ships Same Business Day
- Weight:
- 9.85 LBS
$563.66Qty in Cart: 0Quantity:Price:$563.66Subtotal: -
WISECO Engine Rebuild Kit PWR116B-101
WISECO
$524.88WISECO Engine Rebuild Kit PWR116B-101Includes all top and bottom-end components for a complete engine rebuild, 4-stroke kits include a premium forged piston kit with stock compression ratio and a high-quality cam chain, 2-stroke kits include a Pro-Lite®...9031604- SKU:
- 9031604
- Availability:
- Ships Same Business Day
- Weight:
- 10.05 LBS
$524.88Qty in Cart: 0Quantity:Price:$524.88Subtotal: -
WISECO Engine Rebuild Kit PWR119-101
WISECO
$474.95WISECO Engine Rebuild Kit PWR119-101Includes all top and bottom-end components for a complete engine rebuild, 4-stroke kits include a premium forged piston kit with stock compression ratio and a high-quality cam chain, 2-stroke kits include a Pro-Lite®...9031605- SKU:
- 9031605
- Availability:
- Ships Same Business Day
- Weight:
- 7.90 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 48.00 MM
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
$474.95 -
WISECO Engine Rebuild Kit PWR119-103
WISECO
$474.95WISECO Engine Rebuild Kit PWR119-103Includes all top and bottom-end components for a complete engine rebuild, 4-stroke kits include a premium forged piston kit with stock compression ratio and a high-quality cam chain, 2-stroke kits include a Pro-Lite®...9031606- SKU:
- 9031606
- Availability:
- Ships Same Business Day
- Weight:
- 7.90 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 48.00 MM
- PRODUCT NAME:
- REBUILD KIT
- BORE - OVERSIZE:
- STANDARD
- TYPE:
- ENGINE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$474.95 -
WISECO Engine Rebuild Kit PWR128-100
WISECO
$659.95WISECO Engine Rebuild Kit PWR128-100Includes all top and bottom-end components for a complete engine rebuild, 4-stroke kits include a premium forged piston kit with stock compression ratio and a high-quality cam chain, 2-stroke kits include a Pro-Lite®...9031607- SKU:
- 9031607
- Availability:
- Ships Same Business Day
- Weight:
- 14.00 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- BORE SIZE METRIC:
- 66.40 MM
$659.95Qty in Cart: 0Quantity:Price:$659.95Subtotal:
