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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PROX Piston Rings 02.6351
PROX
$49.95PROX Piston Rings 02.6351High quality rings which allow for optimum heat transfer and sealing9120661- SKU:
- 9120661
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- PAIR
- BORE SIZE METRIC:
- 87.96 MM - 87.98 MM
- RIDING STYLE:
- OFF-ROAD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON RING
$49.95 -
PROX Piston Rings 02.6394
PROX
$49.95PROX Piston Rings 02.6394High quality rings which allow for optimum heat transfer and sealing9120662- SKU:
- 9120662
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 71.94 MM - 71.96 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- PAIR
$49.95 -
PROX Piston Rings 02.6429
PROX
$49.95PROX Piston Rings 02.6429High quality rings which allow for optimum heat transfer and sealing9120663- SKU:
- 9120663
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- BORE SIZE METRIC:
- 94.95 MM - 94.97 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- STREET
$49.95 -
PROX Crankshaft 10.6228
PROX
$369.22PROX Crankshaft 10.6228High-quality forged connecting rod kit, Meet or exceed OEM crankshafts in performance and durability9210791- SKU:
- 9210791
- Availability:
- Ships Same Business Day
- Weight:
- 7.40 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CRANKSHAFT
- UNITS:
- EACH
$369.22Qty in Cart: 0Quantity:Price:$369.22Subtotal: -
PROX Crankshaft 10.6226
PROX
$423.56PROX Crankshaft 10.6226High-quality forged connecting rod kit, Meet or exceed OEM crankshafts in performance and durability9210797- SKU:
- 9210797
- Availability:
- Ships Same Business Day
- Weight:
- 7.20 LBS
$423.56Qty in Cart: 0Quantity:Price:$423.56Subtotal: -
PROX Crankshaft 10.3340
PROX
$465.98PROX Crankshaft 10.3340High-quality forged connecting rod kit, Meet or exceed OEM crankshafts in performance and durability9210799- SKU:
- 9210799
- Availability:
- Ships Same Business Day
- Weight:
- 7.80 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
$465.98 -
PROX Crankshaft 10.2416
PROX
$357.62PROX Crankshaft 10.2416High-quality forged connecting rod kit, Meet or exceed OEM crankshafts in performance and durability9210800- SKU:
- 9210800
- Availability:
- Ships Same Business Day
- Weight:
- 7.55 LBS
$357.62Qty in Cart: 0Quantity:Price:$357.62Subtotal: -
PROX Crankshaft 10.6335
PROX
$486.39PROX Crankshaft 10.6335High-quality forged connecting rod kit, Meet or exceed OEM crankshafts in performance and durability9210801- SKU:
- 9210801
- Availability:
- Ships Same Business Day
- Weight:
- 7.85 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CRANKSHAFT
- UNITS:
- EACH
$486.39Qty in Cart: 0Quantity:Price:$486.39Subtotal: -
On Sale
PROX Crankshaft 10.6324
PROX
MSRP: $455.54Now: $296.10Was: $455.54PROX Crankshaft 10.6324High-quality forged connecting rod kit, Meet or exceed OEM crankshafts in performance and durability9210806- SKU:
- 9210806
- Availability:
- Ships Same Business Day
- Weight:
- 5.90 LBS
- PRODUCT NAME:
- CRANKSHAFT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $455.54Now: $296.10Was: $455.54Qty in Cart: 0Quantity:Price:MSRP: $455.54Now: $296.10Was: $455.54Subtotal: -
PROX Crankshaft 10.1340
PROX
$347.41PROX Crankshaft 10.1340High-quality forged connecting rod kit, Meet or exceed OEM crankshafts in performance and durability9210782- SKU:
- 9210782
- Availability:
- Ships Same Business Day
- Weight:
- 8.20 LBS
$347.41Qty in Cart: 0Quantity:Price:$347.41Subtotal: -
PROX Crank Bearing and Seal Kit 23.CBS11085
PROX
$55.95PROX Crank Bearing and Seal Kit 23.CBS11085Made to exact OEM specifications for maximum performance and durability, Includes all necessary bearings/seals for a component's replacement, For use with OEM or Pro X crankshafts9240294- SKU:
- 9240294
- Availability:
- Ships Same Business Day
- Weight:
- 0.92 LBS
- PRODUCT NAME:
- BEARING AND SEAL KIT
- STYLE:
- 2-STROKE
- TYPE:
- BALL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- CRANKSHAFT
$55.95 -
PROX Crank Bearing and Seal Kit 23.CBS12007
PROX
$106.87PROX Crank Bearing and Seal Kit 23.CBS12007Made to exact OEM specifications for maximum performance and durability, Includes all necessary bearings/seals for a component's replacement, For use with OEM or Pro X crankshafts9240295- SKU:
- 9240295
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- 4-STROKE
- PRODUCT NAME:
- BEARING AND SEAL KIT
- UNITS:
- KIT
- TYPE:
- BALL
- APPLICATION:
- CRANKSHAFT
$106.87 -
PROX Crank Bearing and Seal Kit 23.CBS12080
PROX
$56.97PROX Crank Bearing and Seal Kit 23.CBS12080Made to exact OEM specifications for maximum performance and durability, Includes all necessary bearings/seals for a component's replacement, For use with OEM or Pro X crankshafts9240296- SKU:
- 9240296
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- APPLICATION:
- CRANKSHAFT
- PRODUCT NAME:
- BEARING AND SEAL KIT
- UNITS:
- KIT
- TYPE:
- BALL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- 2-STROKE
$56.97 -
PROX Crank Bearing and Seal Kit 23.CBS12086
PROX
$53.95PROX Crank Bearing and Seal Kit 23.CBS12086Made to exact OEM specifications for maximum performance and durability, Includes all necessary bearings/seals for a component's replacement, For use with OEM or Pro X crankshafts9240297- SKU:
- 9240297
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- APPLICATION:
- CRANKSHAFT
- TYPE:
- BALL
- PRODUCT NAME:
- BEARING AND SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- 2-STROKE
- UNITS:
- KIT
$53.95 -
PROX Crank Bearing and Seal Kit 23.CBS13004
PROX
$111.16PROX Crank Bearing and Seal Kit 23.CBS13004Made to exact OEM specifications for maximum performance and durability, Includes all necessary bearings/seals for a component's replacement, For use with OEM or Pro X crankshafts9240298- SKU:
- 9240298
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- PRODUCT NAME:
- BEARING AND SEAL KIT
- STYLE:
- 4-STROKE
- APPLICATION:
- CRANKSHAFT
- TYPE:
- BALL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$111.16 -
PROX Crank Bearing and Seal Kit 23.CBS13006
PROX
$112.87PROX Crank Bearing and Seal Kit 23.CBS13006Made to exact OEM specifications for maximum performance and durability, Includes all necessary bearings/seals for a component's replacement, For use with OEM or Pro X crankshafts9240299- SKU:
- 9240299
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- PRODUCT NAME:
- BEARING AND SEAL KIT
- APPLICATION:
- CRANKSHAFT
- TYPE:
- BALL
- STYLE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$112.87 -
PROX Crank Bearing and Seal Kit 23.CBS13084
PROX
$65.95PROX Crank Bearing and Seal Kit 23.CBS13084Made to exact OEM specifications for maximum performance and durability, Includes all necessary bearings/seals for a component's replacement, For use with OEM or Pro X crankshafts9240300- SKU:
- 9240300
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- APPLICATION:
- CRANKSHAFT
- PRODUCT NAME:
- BEARING AND SEAL KIT
- TYPE:
- BALL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- 2-STROKE
- UNITS:
- KIT
$65.95 -
PROX Crank Bearing and Seal Kit 23.CBS13087
PROX
$65.95PROX Crank Bearing and Seal Kit 23.CBS13087Made to exact OEM specifications for maximum performance and durability, Includes all necessary bearings/seals for a component's replacement, For use with OEM or Pro X crankshafts9240301- SKU:
- 9240301
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- APPLICATION:
- CRANKSHAFT
- TYPE:
- BALL
- PRODUCT NAME:
- BEARING AND SEAL KIT
- RIDING STYLE:
- ATV
- STYLE:
- 2-STROKE
- UNITS:
- KIT
$65.95 -
PROX Crank Bearing and Seal Kit 23.CBS14002
PROX
$108.08PROX Crank Bearing and Seal Kit 23.CBS14002Made to exact OEM specifications for maximum performance and durability, Includes all necessary bearings/seals for a component's replacement, For use with OEM or Pro X crankshafts9240304- SKU:
- 9240304
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- APPLICATION:
- CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING AND SEAL KIT
- STYLE:
- 4-STROKE
- TYPE:
- BALL
$108.08 -
PROX Crank Bearing and Seal Kit 23.CBS14096
PROX
$81.13PROX Crank Bearing and Seal Kit 23.CBS14096Made to exact OEM specifications for maximum performance and durability, Includes all necessary bearings/seals for a component's replacement, For use with OEM or Pro X crankshafts9240306- SKU:
- 9240306
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- APPLICATION:
- CRANKSHAFT
- PRODUCT NAME:
- BEARING SET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- STYLE:
- 4-STROKE
- TYPE:
- BALL
$81.13
