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 Kit - Standard - KTM 50SX 01.6012.B
PROX
$61.44PROX Piston Kit Standard KTM 50SX 01.6012.BPiston Kit for offroad applications9106103- SKU:
- 9106103
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- BORE SIZE METRIC:
- 39.47 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
$61.44 -
PROX Piston Kit - Standard - KTM 65SX 01.6022.A
PROX
$67.56PROX Piston Kit Standard KTM 65SX 01.6022.APiston Kit for offroad applications9106104- SKU:
- 9106104
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE - OVERSIZE:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 44.96 MM
$67.56 -
PROX Piston Kit - Standard - KTM 65SX 01.6022.B
PROX
$67.56PROX Piston Kit Standard KTM 65SX 01.6022.BPiston Kit for offroad applications9106105- SKU:
- 9106105
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 44.97 MM
$67.56 -
PROX Piston Kit - Standard - 125SX 01.6220.A
PROX
$124.95PROX Piston Kit Standard 125SX 01.6220.APiston Kit for offroad applications9106106- SKU:
- 9106106
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- BORE SIZE METRIC:
- 53.94 MM
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
$124.95Qty in Cart: 0Quantity:Price:$124.95Subtotal: -
PROX Piston Kit - Standard - KTM 125SX 01.6220.B
PROX
$124.95PROX Piston Kit Standard KTM 125SX 01.6220.BPiston Kit for offroad applications9106107- SKU:
- 9106107
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 53.95 MM
- PRODUCT NAME:
- PISTON KIT
$124.95 -
PROX Piston Kit - Standard - KTM 200EXC 01.6249.A
PROX
$149.27PROX Piston Kit Standard KTM 200EXC 01.6249.APiston Kit for offroad applications9106108- SKU:
- 9106108
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BORE - OVERSIZE:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 63.94 MM
- PRODUCT NAME:
- PISTON KIT
$149.27 -
PROX Piston Kit - Standard - 200EXC 01.6249.B
PROX
$149.27PROX Piston Kit Standard 200EXC 01.6249.BPiston Kit for offroad applications9106109- SKU:
- 9106109
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BORE SIZE METRIC:
- 63.95 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
$149.27 -
PROX Piston Rings 02.1227
PROX
$49.95PROX Piston Rings 02.1227High quality rings which allow for optimum heat transfer and sealing9120647- SKU:
- 9120647
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- PISTON MATERIAL:
- ALUMINUM ALLOY
- BORE SIZE METRIC:
- 65.97 MM - 65.99 MM
$49.95 -
PROX Piston Rings 02.1340
PROX
$49.95PROX Piston Rings 02.1340High quality rings which allow for optimum heat transfer and sealing9120648- SKU:
- 9120648
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- BORE SIZE METRIC:
- 76.77 MM - 76.79 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$49.95 -
PROX Piston Rings 02.3408
PROX
$49.95PROX Piston Rings 02.3408High quality rings which allow for optimum heat transfer and sealing9120649- SKU:
- 9120649
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 95.96 MM - 95.98 MM
- UNITS:
- PAIR
$49.95 -
PROX Piston Rings 02.2402
PROX
$43.65PROX Piston Rings 02.2402High quality rings which allow for optimum heat transfer and sealing9120650- SKU:
- 9120650
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$43.65Qty in Cart: 0Quantity:Price:$43.65Subtotal: -
PROX Piston Rings 02.3340
PROX
$49.95PROX Piston Rings 02.3340High quality rings which allow for optimum heat transfer and sealing9120651- SKU:
- 9120651
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- BORE SIZE METRIC:
- 76.96 MM - 76.98 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- PRODUCT NAME:
- PISTON RING
$49.95 -
PROX Piston Rings 02.6427
PROX
$45.09PROX Piston Rings 02.6427High quality rings which allow for optimum heat transfer and sealing9120652- SKU:
- 9120652
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 96.95 MM - 96.97 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
$45.09 -
PROX Piston Rings 02.3337
PROX
$44.95PROX Piston Rings 02.3337High quality rings which allow for optimum heat transfer and sealing9120653- SKU:
- 9120653
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BORE SIZE METRIC:
- 76.96 MM - 76.98 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$44.95Qty in Cart: 0Quantity:Price:$44.95Subtotal: -
PROX Piston Rings 02.4124
PROX
$27.59PROX Piston Rings 02.4124High quality rings which allow for optimum heat transfer and sealing9120654- SKU:
- 9120654
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- BORE SIZE METRIC:
- 48.45 MM - 48.47 MM
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$27.59Qty in Cart: 0Quantity:Price:$27.59Subtotal: -
PROX Piston Rings 02.4336
PROX
$49.95PROX Piston Rings 02.4336High quality rings which allow for optimum heat transfer and sealing9120655- SKU:
- 9120655
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- BORE SIZE METRIC:
- 76.96 MM - 76.98 MM
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$49.95 -
PROX Piston Rings 02.6012
PROX
$24.95PROX Piston Rings 02.6012High quality rings which allow for optimum heat transfer and sealing9120656- SKU:
- 9120656
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- BORE SIZE METRIC:
- 39.46 MM - 39.48 MM
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$24.95 -
PROX Piston Rings 02.6225
PROX
$49.95PROX Piston Rings 02.6225High quality rings which allow for optimum heat transfer and sealing9120657- SKU:
- 9120657
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 53.94 MM - 53.97 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON RING
- UNITS:
- PAIR
$49.95 -
On Sale
PROX Piston Rings 02.6228
PROX
MSRP: $36.35Now: $23.63Was: $36.35PROX Piston Rings 02.6228High quality rings which allow for optimum heat transfer and sealing9120658- SKU:
- 9120658
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- UNITS:
- PAIR
- PRODUCT NAME:
- PISTON RING
- BORE SIZE METRIC:
- 55.94 MM - 55.96 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
MSRP: $36.35Now: $23.63Was: $36.35 -
PROX Piston Rings 02.6249
PROX
$32.95PROX Piston Rings 02.6249High quality rings which allow for optimum heat transfer and sealing9120659- SKU:
- 9120659
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal:
