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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CV4 Valve Spring Shim Kit - .020 CVMS12001
CV4
$6.95CV4 Valve Spring Shim Kit .020 CVMS12001Shim Kits for Valve Springs9261150- SKU:
- 9261150
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- SIZE IMPERIAL:
- OVERSIZE (+0.020')
- PRODUCT NAME:
- SHIM
- TYPE:
- VALVE SPRING
- UNITS:
- 4 PACK
$6.95Qty in Cart: 0Quantity:Price:$6.95Subtotal: -
CV4 Valve Spring Shim Kit - .010 CVMS12000
CV4
$6.95CV4 Valve Spring Shim Kit .010 CVMS12000Shim Kits for Valve Springs9261149- SKU:
- 9261149
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SHIM
- UNITS:
- 4 PACK
- SIZE IMPERIAL:
- OVERSIZE (+0.010')
- TYPE:
- VALVE SPRING
$6.95Qty in Cart: 0Quantity:Price:$6.95Subtotal: -
DEL WEST Outer Intake Valve DW-YZ450F-2IV03
DEL WEST
$172.95DEL WEST Outer Intake Valve DW-YZ450F-2IV03Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable9261075- SKU:
- 9261075
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MATERIAL:
- TITANIUM
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$172.95 -
DEL WEST Intake Valve DW-YZ450F-1IV03
DEL WEST
$172.95DEL WEST Intake Valve DW-YZ450F-1IV03Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable9261074- SKU:
- 9261074
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- VALVE
- APPLICATION:
- INTAKE
- MATERIAL:
- TITANIUM
- UNITS:
- EACH
$172.95 -
DEL WEST Exhaust Valve DW-YZ450F-EV03
DEL WEST
$172.95DEL WEST Exhaust Valve DW-YZ450F-EV03Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable9261072- SKU:
- 9261072
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MATERIAL:
- TITANIUM
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
$172.95 -
DEL WEST Outer Intake Valve DW-YZ250F-2IV02
DEL WEST
$172.95DEL WEST Outer Intake Valve DW-YZ250F-2IV02Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable9261070- SKU:
- 9261070
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
$172.95 -
DEL WEST Intake Valve DW-YZ250F-1IV02
DEL WEST
$172.95DEL WEST Intake Valve DW-YZ250F-1IV02Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable9261068- SKU:
- 9261068
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
$172.95 -
DEL WEST Exhaust Valve DW-YZ250F-EV02
DEL WEST
$172.95DEL WEST Exhaust Valve DW-YZ250F-EV02Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable9261067- SKU:
- 9261067
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- TITANIUM
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE
$172.95 -
DEL WEST Intake Valve DW-RMZ450-IV08
DEL WEST
$172.95DEL WEST Intake Valve DW-RMZ450-IV08Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable9261066- SKU:
- 9261066
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- VALVE
- MATERIAL:
- TITANIUM
- UNITS:
- EACH
$172.95 -
DEL WEST Intake Valve DW-KX250F-IV09
DEL WEST
$172.95DEL WEST Intake Valve DW-KX250F-IV09Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable9261053- SKU:
- 9261053
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- TITANIUM
$172.95 -
DEL WEST Intake Valve DW-KX250F-IV07
DEL WEST
$172.95DEL WEST Intake Valve DW-KX250F-IV07Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable9261052- SKU:
- 9261052
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- TITANIUM
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
$172.95 -
DEL WEST Exhaust Valve DW-CRF250R-EV04
DEL WEST
$172.95DEL WEST Exhaust Valve DW-CRF250R-EV04Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable9261041- SKU:
- 9261041
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
- MATERIAL:
- TITANIUM
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$172.95 -
WISECO Intake Valve VIS016
WISECO
$44.95WISECO Intake Valve VIS016Treated with either CVD or CNI (depending on the application), both applications are wear- and friction-reducers that resist heat penetration as well9260694- SKU:
- 9260694
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$44.95 -
WISECO Exhaust Valve VES019
WISECO
$49.33WISECO Exhaust Valve VES019Treated with either CVD or CNI (depending on the application), both applications are wear- and friction-reducers that resist heat penetration as well9260693- SKU:
- 9260693
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$49.33Qty in Cart: 0Quantity:Price:$49.33Subtotal: -
WISECO Exhaust Valve VES016
WISECO
$42.95WISECO Exhaust Valve VES016Treated with either CVD or CNI (depending on the application), both applications are wear- and friction-reducers that resist heat penetration as well9260692- SKU:
- 9260692
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
$42.95 -
XCELDYNE Valve Seal Kit CVMSEA43000
XCELDYNE
$19.95XCELDYNE Valve Seal Kit CVMSEA43000Made from premium Viton material and offers superior oil control, Exhibit the least amount of parasitic drag and wear on the valve, giving greater life of the valve and better power, Fit OE valve and valve guide...9260661- SKU:
- 9260661
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- RIDING STYLE:
- ATV
- MATERIAL:
- VITON
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VALVE
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
$19.95 -
XCELDYNE Valve Guide Kit - Intake CVGM13004
XCELDYNE
$47.95XCELDYNE Valve Guide Kit Intake CVGM13004Highest tolerances for correct valve stem support and fitment in cylinder head, Built from Xceldyne's specified blend of Manganese-bronze, Heat dissipation (thermal conductivity) and valve stem lubrication are...9260607- SKU:
- 9260607
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- VALVE GUIDE
- MATERIAL:
- MANGANESE-BRONZE
- APPLICATION:
- INTAKE
- RIDING STYLE:
- ATV
- UNITS:
- 2 PIECE
$47.95Qty in Cart: 0Quantity:Price:$47.95Subtotal: -
XCELDYNE Valve Guide Kit - Exhaust CVGM13001
XCELDYNE
$46.95XCELDYNE Valve Guide Kit Exhaust CVGM13001Highest tolerances for correct valve stem support and fitment in cylinder head, Built from Xceldyne's specified blend of Manganese-bronze, Heat dissipation (thermal conductivity) and valve stem lubrication are...9260604- SKU:
- 9260604
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- 2 PIECE
- APPLICATION:
- EXHAUST
- MATERIAL:
- MANGANESE-BRONZE
$46.95Qty in Cart: 0Quantity:Price:$46.95Subtotal: -
XCELDYNE Valve Guide Kit - Exhaust CVGM12002
XCELDYNE
$47.95XCELDYNE Valve Guide Kit Exhaust CVGM12002Highest tolerances for correct valve stem support and fitment in cylinder head, Built from Xceldyne's specified blend of Manganese-bronze, Heat dissipation (thermal conductivity) and valve stem lubrication are...9260602- SKU:
- 9260602
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- EXHAUST
- MATERIAL:
- MANGANESE-BRONZE
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- 2 PIECE
- RIDING STYLE:
- OFF-ROAD
$47.95 -
XCELDYNE Valve Guide Kit - Exhaust CVGM12001
XCELDYNE
$47.95XCELDYNE Valve Guide Kit Exhaust CVGM12001Highest tolerances for correct valve stem support and fitment in cylinder head, Built from Xceldyne's specified blend of Manganese-bronze, Heat dissipation (thermal conductivity) and valve stem lubrication are...9260601- SKU:
- 9260601
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- APPLICATION:
- EXHAUST
- MATERIAL:
- MANGANESE-BRONZE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 2 PIECE
- PRODUCT NAME:
- VALVE GUIDE
$47.95
