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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WSM Power Valve Rubber Boot 010-495-05
WSM
$23.16WSM Power Valve Rubber Boot 010-495-05Fine tunes exhaust for peak performance9500473- SKU:
- 9500473
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- POWER VALVE
- UNITS:
- EACH
- RIDING STYLE:
- WATERCRAFT
- PRODUCT NAME:
- BOOT
$23.16 -
WSM Power Valve Piston 010-495-10
WSM
$20.12WSM Power Valve Piston 010-495-10Fine tunes exhaust for peak performance9500474- SKU:
- 9500474
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- RIDING STYLE:
- WATERCRAFT
- PRODUCT NAME:
- PISTON
- TYPE:
- POWER VALVE
- UNITS:
- EACH
$20.12 -
MOOSE RACING Crankcase Bearing and Seal Kit 24-1022
MOOSE RACING
$52.95MOOSE RACING Crankcase Bearing and Seal Kit 24-1022Precision crank bearings, Kits contain right and left crankshaft bearings; 2-stroke kits contain outer seals, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines,...A241022- SKU:
- A241022
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- PRODUCT NAME:
- BEARING KIT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- TYPE:
- CRANK
$52.95 -
MOOSE RACING Crank Bearing - KDX/JR50 24-1067
MOOSE RACING
$43.95MOOSE RACING Crank Bearing KDX/JR50 24-1067Precision crank bearings, Kits contain right and left crankshaft bearings, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines9240102- SKU:
- 9240102
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- ATV
- TYPE:
- BALL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- CRANKSHAFT
- RIDING STYLE:
- STREET
$43.95 -
MOOSE RACING Washer/Snap Ring Counter Shaft 25-6012
MOOSE RACING
$27.95MOOSE RACING Washer/Snap Ring Counter Shaft 25-6012Always have the countershaft lock-washers and snap rings on hand for a front sprocket replacement9350492- SKU:
- 9350492
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- SNAP RING
- APPLICATION:
- COUNTERSHAFT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 10 PACK
$27.95 -
TWIN AIR Oil Filter - Yamaha 140017
TWIN AIR
$14.95TWIN AIR Oil Filter Yamaha 140017Made with quality paper filtering material coupled with the latest in production technologies to provide maximum protection, performance and value140017- SKU:
- 140017
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- RIDING STYLE:
- ATV
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- OIL FILTER
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- STYLE:
- STANDARD
$14.95 -
PROX Valveshim - 10.00 x 2.60 - 5 pack 29.100260
PROX
$10.31PROX Valveshim 10.00 x 2.60 5 pack 29.100260Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims9261005- SKU:
- 9261005
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SHIM KIT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 2.60 MM
$10.31 -
PROX Valveshim - 10.00 x 2.65 - 5 pack 29.100265
PROX
$10.31PROX Valveshim 10.00 x 2.65 5 pack 29.100265Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims9261006- SKU:
- 9261006
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- TYPE:
- VALVE
- PRODUCT NAME:
- SHIM KIT
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 2.65 MM
- RIDING STYLE:
- OFF-ROAD
$10.31 -
PROX Valveshim - 10.00 x 2.70 - 5 pack 29.100270
PROX
$10.31PROX Valveshim 10.00 x 2.70 5 pack 29.100270Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims9261007- SKU:
- 9261007
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 2.70 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SHIM KIT
- UNITS:
- 5 PACK
- RIDING STYLE:
- OFF-ROAD
$10.31 -
PROX Valveshim - 10.00 x 2.75 - 5 pack 29.100275
PROX
$10.31PROX Valveshim 10.00 x 2.75 5 pack 29.100275Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims9261008- SKU:
- 9261008
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- TYPE:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- VALVE SHIM THICKNESS METRIC:
- 2.75 MM
- PRODUCT NAME:
- SHIM KIT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
$10.31 -
PROX Valveshim - 10.00 x 2.80 - 5 pack 29.100280
PROX
$10.31PROX Valveshim 10.00 x 2.80 5 pack 29.100280Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims9261009- SKU:
- 9261009
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 2.80 MM
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SHIM KIT
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
$10.31 -
PROX Valveshim - 10.00 x 2.85 - 5 pack 29.100285
PROX
$10.31PROX Valveshim 10.00 x 2.85 5 pack 29.100285Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims9261010- SKU:
- 9261010
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 2.85 MM
- PRODUCT NAME:
- SHIM KIT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- RIDING STYLE:
- OFF-ROAD
$10.31 -
PROX Valveshim - 10.00 x 2.90 - 5 pack 29.100290
PROX
$10.31PROX Valveshim 10.00 x 2.90 5 pack 29.100290Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims9261011- SKU:
- 9261011
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- PRODUCT NAME:
- SHIM KIT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.90 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
$10.31 -
PROX Valveshim - 10.00 x 2.95 - 5 pack 29.100295
PROX
$10.31PROX Valveshim 10.00 x 2.95 5 pack 29.100295Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims9261012- SKU:
- 9261012
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SHIM KIT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 2.95 MM
$10.31 -
PROX Valveshim - 10.00 x 3.00 - 5 pack 29.100300
PROX
$10.31PROX Valveshim 10.00 x 3.00 5 pack 29.100300Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims9261013- SKU:
- 9261013
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SHIM KIT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 3.00 MM
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- TYPE:
- VALVE
- RIDING STYLE:
- OFF-ROAD
$10.31 -
PROX Valveshim - 10.00 x 3.05 - 5 pack 29.100305
PROX
$10.31PROX Valveshim 10.00 x 3.05 5 pack 29.100305Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims9261014- SKU:
- 9261014
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SHIM KIT
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 3.05 MM
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- VALVE
$10.31 -
On Sale
PROX Valveshim - 10.00 x 3.15 - 5 pack 29.100315
PROX
MSRP: $10.31Now: $6.70Was: $10.31PROX Valveshim 10.00 x 3.15 5 pack 29.100315Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims9261016- SKU:
- 9261016
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SHIM KIT
- UNITS:
- 5 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 3.15 MM
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- TYPE:
- VALVE
MSRP: $10.31Now: $6.70Was: $10.31Qty in Cart: 0Quantity:Price:MSRP: $10.31Now: $6.70Was: $10.31Subtotal: -
PROX Valveshim - 10.00 x 3.20 - 5 pack 29.100320
PROX
$10.31PROX Valveshim 10.00 x 3.20 5 pack 29.100320Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims9261017- SKU:
- 9261017
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 3.20 MM
- PRODUCT NAME:
- SHIM KIT
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- TYPE:
- VALVE
$10.31 -
PROX Valve and Spring Kit 28.SIS1405-2
PROX
$157.34PROX Valve and Spring Kit 28.SIS1405-2Replaces the OEM valves and valve springs, Steel, nitrided valves for increased durability and less wear under extreme conditions, Stronger valve springs deal with the extra weight of the steel valves, Springs are...9261021- SKU:
- 9261021
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPRING KIT
- TYPE:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$157.34 -
PROX Valve and Spring Kit 28.SES2424-1
PROX
$157.34PROX Valve and Spring Kit 28.SES2424-1Replaces the OEM valves and valve springs, Steel, nitrided valves for increased durability and less wear under extreme conditions, Stronger valve springs deal with the extra weight of the steel valves, Springs are...9261025- SKU:
- 9261025
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- TYPE:
- VALVE
- PRODUCT NAME:
- SPRING KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$157.34
