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 2.00 - 5 pack 5PK890200
HOT CAMS
$9.35HOT CAMS Valve Shim 8.90 x 2.00 5 pack 5PK890200Replacement packs of shims to refill Valve Shim Kits9261356- SKU:
- 9261356
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- SNOW
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 2.00 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
$9.35 -
HOT CAMS Valve Shim - 8.90 x 2.56 - 5 pack 5PK890256
HOT CAMS
$9.35HOT CAMS Valve Shim 8.90 x 2.56 5 pack 5PK890256Replacement packs of shims to refill Valve Shim Kits9261370- SKU:
- 9261370
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- VALVE SHIM THICKNESS METRIC:
- 2.56 MM
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
$9.35 -
HOT CAMS Valve Shim - 9.48 x 1.20 - 5 pack 5PK948120
HOT CAMS
$8.95HOT CAMS Valve Shim 9.48 x 1.20 5 pack 5PK948120Replacement packs of shims to refill Valve Shim Kits9261372- SKU:
- 9261372
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- VALVE SHIM THICKNESS METRIC:
- 1.20 MM
$8.95 -
HOT CAMS Valve Shim - 9.48 x 1.40 - 5 pack 5PK948140
HOT CAMS
$8.95HOT CAMS Valve Shim 9.48 x 1.40 5 pack 5PK948140Replacement packs of shims to refill Valve Shim Kits9261376- SKU:
- 9261376
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 1.40 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
$8.95 -
HOT CAMS Valve Shim - 9.48 x 1.45 - 5 pack 5PK948145
HOT CAMS
$8.95HOT CAMS Valve Shim 9.48 x 1.45 5 pack 5PK948145Replacement packs of shims to refill Valve Shim Kits9261377- SKU:
- 9261377
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 1.45 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
$8.95 -
HOT CAMS Valve Shim - 9.48 x 1.50 - 5 pack 5PK948150
HOT CAMS
$8.95HOT CAMS Valve Shim 9.48 x 1.50 5 pack 5PK948150Replacement packs of shims to refill Valve Shim Kits9261378- SKU:
- 9261378
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- VALVE SHIM THICKNESS METRIC:
- 1.50 MM
$8.95 -
On Sale
VERTEX Piston Ring 590272000002
VERTEX
MSRP: $55.95Now: $50.36Was: $55.95Replacement piston rings, Nitride coated or chrome plated, increasing wear resistance and extending durability, The latest generation for both two-stroke and four-stroke engines; four-stroke piston rings are sold in sets and two-stroke piston rings are...9120306- SKU:
- 9120306
- Weight:
- 0.04 LBS
MSRP: $55.95Now: $50.36Was: $55.95Qty in Cart: 0Quantity:Price:MSRP: $55.95Now: $50.36Was: $55.95Subtotal: -
On Sale
VERTEX Piston Ring 590280000001
VERTEX
MSRP: $69.95Now: $63.86Was: $70.95VERTEX Piston Ring 590280000001Replacement piston rings, Nitride coated or chrome plated, increasing wear resistance and extending durability, The latest generation for both two-stroke and four-stroke engines; four-stroke piston rings are sold in sets...9120308- SKU:
- 9120308
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 79.98 MM
MSRP: $69.95Now: $63.86Was: $70.95 -
On Sale
VERTEX Piston Ring 590281000001
VERTEX
MSRP: $67.95Now: $62.06Was: $68.95VERTEX Piston Ring 590281000001Replacement piston rings, Nitride coated or chrome plated, increasing wear resistance and extending durability, The latest generation for both two-stroke and four-stroke engines; four-stroke piston rings are sold in sets...9120309- SKU:
- 9120309
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- PISTON DIAMETER METRIC:
- 80.98 MM
- UNITS:
- SET
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
MSRP: $67.95Now: $62.06Was: $68.95 -
WISECO Piston Kit - Racer Elite RE912M06640
WISECO
$249.95WISECO Piston Kit Racer Elite RE912M06640The 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...9105104- SKU:
- 9105104
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORFIT™
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 66.40 MM
- PISTON MATERIAL:
- 2000 SERIES ALLOY
- PISTON MATERIAL:
- FORGED
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RACER ELITE
$249.95 -
WISECO Piston Kit - Racer Elite RE901M04800
WISECO
$134.95WISECO Piston Kit Racer Elite RE901M04800The 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...9105105- SKU:
- 9105105
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORFIT™
- BORE SIZE METRIC:
- 48.00 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 2000 SERIES ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RACER ELITE
$134.95 -
WISECO Piston Kit - Racer Elite RE901M04900
WISECO
$134.95WISECO Piston Kit Racer Elite RE901M04900The 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...9105107- SKU:
- 9105107
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- BORE - OVERSIZE:
- +1,00 MM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORFIT™
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE METRIC:
- +1.00 MM
- BORE SIZE METRIC:
- 49.00 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 2000 SERIES ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RACER ELITE
- UNITS:
- KIT
$134.95 -
WISECO Piston Kit - Jet Ski - .040 WK1028
WISECO
$178.55Most 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 top-end gasket kit for one...WK1028- SKU:
- WK1028
- Weight:
- 1.44 LBS
$178.55Qty in Cart: 0Quantity:Price:$178.55Subtotal: -
On Sale
WISECO Piston Kit - Yamaha - .050" WK1041
WISECO
MSRP: $369.74Now: $245.13Was: $377.13Most 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 top-end gasket kit for one...WK1041- SKU:
- WK1041
- Weight:
- 2.75 LBS
- BORE - OVERSIZE METRIC:
- +0.50 MM
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- TYPE:
- TOP END
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- BORE - OVERSIZE:
- +0,50 MM
- PISTON DIAMETER METRIC:
- 76.90 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- WATERCRAFT
- BORE SIZE METRIC:
- 77.50 MM
- DISPLACEMENT:
- 641 CC
- PRODUCT NAME:
- REBUILD KIT
MSRP: $369.74Now: $245.13Was: $377.13 -
WISECO Piston Kit - Jet Ski - .050" WK1046
WISECO
$349.95Most 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 top-end gasket kit for one...WK1046- SKU:
- WK1046
- Weight:
- 2.19 LBS
- RIDING STYLE:
- WATERCRAFT
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 75.50 MM
- PISTON DIAMETER METRIC:
- 75.40 MM
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE - OVERSIZE:
- +0,50 MM
- DISPLACEMENT:
- 537 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
$349.95 -
WOSSNER Piston Kit 8072DA
WOSSNER
$117.95WOSSNER Piston Kit 8072DA2-stoke pistons include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum Alloy, German Engineered...9104787- SKU:
- 9104787
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- DISPLACEMENT:
- 124 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON SIZE METRIC:
- 53.94 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 54.00 MM
- TYPE:
- SINGLE RING
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- MODEL:
- STANDARD SERIES
- PRODUCT NAME:
- PISTON KIT
$117.95 -
WOSSNER Piston Kit 8072DB
WOSSNER
$117.95WOSSNER Piston Kit 8072DB2-stoke pistons include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum Alloy, German Engineered...9104788- SKU:
- 9104788
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- DISPLACEMENT:
- 124 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE METRIC:
- +0.01 MM
- PISTON MATERIAL:
- FORGED
- UNITS:
- KIT
- BORE SIZE METRIC:
- 54.01 MM
- PISTON SIZE METRIC:
- 53.95 MM
- TYPE:
- SINGLE RING
- BORE - OVERSIZE:
- +0,01 MM
- MODEL:
- STANDARD SERIES
- PRODUCT NAME:
- PISTON KIT
$117.95 -
REKLUSE Clutch Cover - Sherco 250/300 RMS-0408001
REKLUSE
$189.00REKLUSE Clutch Cover Sherco 250/300 RMS-0408001Specifically engineered to provide unparalleled durability and performance in a single, stylish component, Ready to ride whenever you are, standing up against rocks, logs, boots and whatever else you may...9401979- SKU:
- 9401979
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$189.00 -
REKLUSE Clutch Cover - Beta RMS-0402028
REKLUSE
$189.00REKLUSE Clutch Cover Beta RMS-0402028Specifically engineered to provide unparalleled durability and performance in a single, stylish component, Ready to ride whenever you are, standing up against rocks, logs, boots and whatever else you may encounter in...9401943- SKU:
- 9401943
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
$189.00 -
REKLUSE Clutch Cover - GasGas 250/300 RMS-300
REKLUSE
$189.00REKLUSE Clutch Cover GasGas 250/300 RMS-300Specifically engineered to provide unparalleled durability and performance in a single, stylish component, Ready to ride whenever you are, standing up against rocks, logs, boots and whatever else you may...9401777- SKU:
- 9401777
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$189.00Qty in Cart: 0Quantity:Price:$189.00Subtotal:
