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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HOT CAMS Valve Shim - 8.90 x 1.80 - 5 pack 5PK890180
HOT CAMS
$9.35HOT CAMS Valve Shim 8.90 x 1.80 5 pack 5PK890180Replacement packs of shims to refill Valve Shim Kits9261351- SKU:
- 9261351
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 1.80 MM
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
$9.35 -
HOT CAMS Valve Shim - 8.90 x 1.92 - 5 pack 5PK890192
HOT CAMS
$9.35HOT CAMS Valve Shim 8.90 x 1.92 5 pack 5PK890192Replacement packs of shims to refill Valve Shim Kits9261354- SKU:
- 9261354
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.92 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
$9.35 -
HOT CAMS Valve Shim - 8.90 x 2.60 - 5 pack 5PK890260
HOT CAMS
$9.35HOT CAMS Valve Shim 8.90 x 2.60 5 pack 5PK890260Replacement packs of shims to refill Valve Shim Kits9261371- SKU:
- 9261371
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.60 MM
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
$9.35 -
HOT CAMS Valve Shim - 9.48 x 1.25 - 5 pack 5PK948125
HOT CAMS
$8.95HOT CAMS Valve Shim 9.48 x 1.25 5 pack 5PK948125Replacement packs of shims to refill Valve Shim Kits9261373- SKU:
- 9261373
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.25 MM
$8.95Qty in Cart: 0Quantity:Price:$8.95Subtotal: -
HOT CAMS Valve Shim - 9.48 x 1.30 - 5 pack 5PK948130
HOT CAMS
$8.95HOT CAMS Valve Shim 9.48 x 1.30 5 pack 5PK948130Replacement packs of shims to refill Valve Shim Kits9261374- SKU:
- 9261374
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- VALVE SHIM THICKNESS METRIC:
- 1.30 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
$8.95 -
HOT CAMS Valve Shim - 9.48 x 1.35 - 5 pack 5PK948135
HOT CAMS
$8.95HOT CAMS Valve Shim 9.48 x 1.35 5 pack 5PK948135Replacement packs of shims to refill Valve Shim Kits9261375- SKU:
- 9261375
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 1.35 MM
$8.95 -
HOT CAMS Valve Shim - 9.48 x 1.60 - 5 pack 5PK948160
HOT CAMS
$8.95HOT CAMS Valve Shim 9.48 x 1.60 5 pack 5PK948160Replacement packs of shims to refill Valve Shim Kits9261380- SKU:
- 9261380
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.60 MM
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ATV
$8.95 -
HOT CAMS Valve Shim - 9.48 x 1.65 - 5 pack 5PK948165
HOT CAMS
$8.95HOT CAMS Valve Shim 9.48 x 1.65 5 pack 5PK948165Replacement packs of shims to refill Valve Shim Kits9261381- SKU:
- 9261381
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 1.65 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
$8.95 -
HOT CAMS Valve Shim - 9.48 x 1.70 - 5 pack 5PK948170
HOT CAMS
$8.95HOT CAMS Valve Shim 9.48 x 1.70 5 pack 5PK948170Replacement packs of shims to refill Valve Shim Kits9261382- SKU:
- 9261382
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 1.70 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$8.95 -
HOT CAMS Valve Shim - 9.48 x 3.10 - 5 pack 5PK948310
HOT CAMS
$8.95HOT CAMS Valve Shim 9.48 x 3.10 5 pack 5PK948310Replacement packs of shims to refill Valve Shim Kits9261410- SKU:
- 9261410
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 3.10 MM
$8.95 -
HOT CAMS Valve Shim - 9.48 x 3.20 - 5 pack 5PK948320
HOT CAMS
$8.95HOT CAMS Valve Shim 9.48 x 3.20 5 pack 5PK948320Replacement packs of shims to refill Valve Shim Kits9261412- SKU:
- 9261412
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 3.20 MM
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
$8.95 -
HOT CAMS Valve Shim - 9.48 x 3.35 - 5 pack 5PK948335
HOT CAMS
$8.95HOT CAMS Valve Shim 9.48 x 3.35 5 pack 5PK948335Replacement packs of shims to refill Valve Shim Kits9261415- SKU:
- 9261415
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 3.35 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
$8.95 -
HOT CAMS Valve Shim - 9.48 x 3.40 - 5 pack 5PK948340
HOT CAMS
$8.95HOT CAMS Valve Shim 9.48 x 3.40 5 pack 5PK948340Replacement packs of shims to refill Valve Shim Kits9261416- SKU:
- 9261416
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 3.40 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$8.95 -
PROX Piston - GP 760 Waverunner 01.2514.000
PROX
$138.90PROX Piston GP 760 Waverunner 01.2514.000Piston for watercraft applications9102743- SKU:
- 9102743
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
$138.90Qty in Cart: 0Quantity:Price:$138.90Subtotal: -
PROX Piston - GP 760 Waverunner 01.2514.025
PROX
$138.90PROX Piston GP 760 Waverunner 01.2514.025Piston for watercraft applications9102744- SKU:
- 9102744
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- BORE SIZE METRIC:
- 84.25 MM
- RIDING STYLE:
- WATERCRAFT
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- EACH
$138.90Qty in Cart: 0Quantity:Price:$138.90Subtotal: -
PROX Piston - GP 760 Waverunner 01.2514.050
PROX
$138.90PROX Piston GP 760 Waverunner 01.2514.050Piston for watercraft applications9102745- SKU:
- 9102745
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- BORE SIZE METRIC:
- 84.50 MM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- EACH
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- WATERCRAFT
$138.90 -
PROX Piston - GP 760 Waverunner 01.2514.100
PROX
$138.90PROX Piston GP 760 Waverunner 01.2514.100Piston for watercraft applications9102747- SKU:
- 9102747
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- WATERCRAFT
- PISTON MATERIAL:
- ALUMINUM
- ENGINE TYPE:
- 2-STROKE
- UNITS:
- EACH
- BORE SIZE METRIC:
- 85.00 MM
$138.90 -
PROX Ring Set 02.1111
PROX
$27.61PROX Ring Set 02.1111Manufactured in Japan and designed as OEM replacements9120161- SKU:
- 9120161
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- SET
- PISTON MATERIAL:
- ALUMINUM ALLOY
$27.61 -
PROX Piston Kit - KTM300EXC '17-'18 01.6387.B
PROX
$209.59PROX Piston Kit KTM300EXC '17-'18 01.6387.BManufactured in Japan and designed to be OEM replacement, Cast from a high-silicon-content aluminum alloy that meets or exceeds OEM specifications, then CNC-machined to extremely close tolerances, Pistons...9106265- SKU:
- 9106265
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
$209.59 -
HINSON RACING Clutch Cover - YZ85 C159
HINSON RACING
$159.99HINSON RACING Clutch Cover YZ85 C159Improves heat dissipation, Stronger than stock, Race proven, Made in the U.S.A.9401036- SKU:
- 9401036
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- T-6 ALUMINUM
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- MODEL:
- BILLETPROOF
$159.99
