Dirt Bike Engine
Discover a full range of dirt bike engine components for rebuilding or upgrading your performance. From crankshafts to cylinder heads and piston kits, these precision-engineered components ensure reliable performance. For additional upgrades, check out our full selection of off-road dirt bike parts.
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ATHENA Top End Gasket Kit - Honda P400210600087
ATHENA
$17.95Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression. Kits do not...400210600087- SKU:
- 400210600087
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$17.95 -
Wiseco Piston Kit 1mm Oversize 71mm Bore for Suzuki DS250 1980 380M07100
WISECO
$199.95Wiseco Piston Kit - Part #380M07100 Elevate your motorcycle's performance with the Wiseco Piston Kit, part number 380M07100. This premium piston kit is engineered for riders who prioritize power, reliability, and efficiency, making it an essential...380M07100- SKU:
- 380M07100
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE - OVERSIZE:
- +1,00 MM
- BORE SIZE METRIC:
- 71.00 MM
- DISPLACEMENT:
- 246 CC
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH METRIC:
- 64.00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- PISTON DIAMETER METRIC:
- 70.92 MM
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
$199.95 -
Wiseco Piston Kit Suzuki TS250 1973-1981 70mm 380M07000
WISECO
$199.95Wiseco 380M07000 Piston Kit Elevate your riding experience with the Wiseco 380M07000 Piston Kit, expertly designed to enhance the power and performance of your Suzuki TM250, TS250, or DS250. This premium piston kit is engineered for 2-stroke engines,...380M07000- SKU:
- 380M07000
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- BORE - OVERSIZE:
- STANDARD
- DISPLACEMENT:
- 246 CC
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 70.00 MM
- PISTON DIAMETER METRIC:
- 69.92 MM
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH METRIC:
- 64.00 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$199.95 -
Wiseco 89mm Ring Set for Honda CR500R 1984-2001 3504TD
WISECO
$54.95WISECO Ring Set 3504TD The WISECO Ring Set 3504TD is engineered for optimal performance, providing a precise fit for your piston. Designed to enhance engine efficiency and durability, this ring set ensures a reliable seal for improved power output...3504TD- SKU:
- 3504TD
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PISTON MATERIAL:
- ALUMINUM
- BORE SIZE METRIC:
- 89.00 MM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
$54.95 -
Wiseco 85mm Piston Ring Set for Honda TRX400EX 1999-2008 3347XC
WISECO
$49.95WISECO Ring Set 3347XC Upgrade your engine's performance with the WISECO Ring Set 3347XC, designed for precision and durability. Each set is tailored for one piston, ensuring optimal fit and function for enhanced combustion efficiency. Experience...3347XC- SKU:
- 3347XC
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- PISTON MATERIAL:
- ALUMINUM
- BORE SIZE METRIC:
- 85.00 MM
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- STREET
- UNITS:
- SET
$49.95 -
Wiseco Piston Ring Set 85mm Bore 1995-2000 Polaris Scrambler 400 3347TD
WISECO
$54.95WISECO Ring Set 3347TD The WISECO Ring Set 3347TD is engineered for optimal performance and durability, designed specifically for high-performance pistons. This ring set ensures a perfect seal and enhances engine efficiency, making it an essential...3347TD- SKU:
- 3347TD
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- PRODUCT NAME:
- PISTON RING
- BORE SIZE METRIC:
- 85.00 MM
- RIDING STYLE:
- ATV
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- SET
$54.95 -
Wiseco Piston Kit 57mm Oversize for Yamaha DT125 1974-1981 236M05700
WISECO
$154.95Wiseco 236M05700 Piston Kit Elevate your Yamaha DT125 or IT125 performance with the Wiseco 236M05700 Piston Kit. Engineered for high-performance 2-stroke engines, this kit promises to enhance your ride with superior durability and efficiency, making it...236M05700- SKU:
- 236M05700
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- BORE - OVERSIZE:
- +1,00 MM
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 57.00 MM
- STROKE LENGTH METRIC:
- 50.00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- DISPLACEMENT:
- 123 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 56.95 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$154.95 -
HOT RODS Water Pump Shaft HRSHA-002
HOT RODS
$58.95HOT RODS Water Pump Shaft HRSHA-002Replaces worn water pump shaft, OE quality materials, Polished surface finish decreases water pump seal wear, Complement Hot Rod's Water Pump Repair kit09500575- SKU:
- 09500575
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
- TYPE:
- WATER PUMP
- PRODUCT NAME:
- SHAFT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$58.95 -
HOT RODS Water Pump Shaft HRSHA-001
HOT RODS
$58.95HOT RODS Water Pump Shaft HRSHA-001Replaces worn water pump shaft, OE quality materials, Polished surface finish decreases water pump seal wear, Complement Hot Rod's Water Pump Repair kit09500574- SKU:
- 09500574
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- WATER PUMP
- PRODUCT NAME:
- SHAFT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$58.95 -
On Sale
POWERSTANDS RACING Oil Cap Kit - Red - M20 x 2.5 00-01318-24
POWERSTANDS RACING
MSRP: $54.95Now: $35.00Was: $54.95POWERSTANDS RACING Oil Cap Kit Red M20 x 2.5 00-01318-24CNC-machined from high-quality aluminum, E-clip is already safety wired to a mounting tab and the wire covered with silicon tubing that will not melt or discolor, Excellent resistance to extreme heat09500567- SKU:
- 09500567
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- ANODIZED
- DIAMETER - THREAD SIZE IMPERIAL:
- M20 X 2.5
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- RED
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- CAP KIT
- TYPE:
- OIL FILLER
- UNITS:
- KIT
MSRP: $54.95Now: $35.00Was: $54.95 -
BOYESEN Impeller/Waterpump Cover WPK06AM
BOYESEN
$194.95BOYESEN Impeller/Waterpump Cover WPK06AMAn aluminum investment-cast water pump cover and impeller combo; specifically designed to enhance the performance of your engines cooling system, This high-flow, hydrodynamic water pump kit has been tested and...09400897- SKU:
- 09400897
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- SUPERCOOLER
- PRODUCT NAME:
- COVER AND IMPELLER KIT
- RIDING STYLE:
- OFF-ROAD
- BASE FINISH:
- POWDER-COATED
- UNITS:
- KIT
- TYPE:
- WATER PUMP
- COLOR/FINISH:
- MAGNESIUM
- MATERIAL:
- ALUMINUM
$194.95 -
BOYESEN Impeller/Waterpump Cover WPK06AB
BOYESEN
$194.95BOYESEN Impeller/Waterpump Cover WPK06ABAn aluminum investment-cast water pump cover and impeller combo; specifically designed to enhance the performance of your engines cooling system, This high-flow, hydrodynamic water pump kit has been tested and...09400896- SKU:
- 09400896
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- BASE COLOR:
- BLACK
- BASE FINISH:
- POWDER-COATED
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- SUPERCOOLER
- PRODUCT NAME:
- COVER AND IMPELLER KIT
$194.95 -
HOT RODS Output Shaft Seal OSK0057
HOT RODS
$24.95HOT RODS Output Shaft Seal OSK0057A quick solution to repairing a leaking countershaft seal in one complete kit, Includes Hot Rods countershaft seal, countershaft bushing, O-rings, and sprocket nut washer (where applicable), Kits do not include water...09350955- SKU:
- 09350955
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- SEAL KIT
- TYPE:
- OIL
- UNITS:
- KIT
- APPLICATION:
- COUNTERSHAFT
- RIDING STYLE:
- OFF-ROAD
$24.95 -
HOT RODS Output Shaft Seal OSK0058
HOT RODS
$32.95HOT RODS Output Shaft Seal OSK0058A quick solution to repairing a leaking countershaft seal in one complete kit, Includes Hot Rods countershaft seal, countershaft bushing, O-rings, and sprocket nut washer (where applicable), Kits do not include water...09350954- SKU:
- 09350954
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- COUNTERSHAFT
- TYPE:
- OIL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal: -
Cylinder Works YZ250 1999-2024 Big Bore Power Valve Kit CW-PV-K02
CYLINDER WORKS
$365.95CYLINDER WORKS Power Valve Big Bore CW-PV-K02 Unlock the full potential of your engine with the CYLINDER WORKS Power Valve Big Bore CW-PV-K02. Designed for superior performance, this high-quality component enhances throttle response and power delivery,...09350953- SKU:
- 09350953
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- STEEL
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- POWER VALVE
- BORE SIZE METRIC:
- 72.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$365.95 -
Cylinder Works Power Valve Kit Standard Bore Yamaha YZ250 1999-2021 CW-PV-K01
CYLINDER WORKS
$233.95CYLINDER WORKS Power Valve Standard Bore CW-PV-K01 Unlock the full potential of your engine with the CYLINDER WORKS Power Valve Standard Bore CW-PV-K01. Designed for optimal performance and precision, this power valve enhances throttle response and...09350952- SKU:
- 09350952
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- STOCK BORE CYLINDER
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- POWER VALVE
- COLOR/FINISH:
- ANODIZED
$233.95 -
COMETIC Crank Seal Kit C7803
COMETIC
$17.95COMETIC Crank Seal Kit C7803Gaskets and gasket sets used by professionals in high-performance machines and as OE replacements worldwide, Domestically made sets include the correct amount of seals for one application, Made in the U.S.A.09350811- SKU:
- 09350811
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- CRANKSHAFT
- TYPE:
- OIL
$17.95 -
On Sale
HOT RODS Seal Output Shaft OSK0031
HOT RODS
MSRP: $28.95Now: $19.00Was: $29.95HOT RODS Seal Output Shaft OSK0031A quick solution to repairing a leaking countershaft seal in one complete kit, Includes Hot Rods countershaft seal, countershaft bushing, O-rings, and sprocket nut washer (where applicable), Kits do not include water...09350594- SKU:
- 09350594
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- SEAL
- UNITS:
- KIT
- APPLICATION:
- COUNTERSHAFT
- APPLICATION:
- TRANSMISSION
- RIDING STYLE:
- OFF-ROAD
MSRP: $28.95Now: $19.00Was: $29.95Qty in Cart: 0Quantity:Price:MSRP: $28.95Now: $19.00Was: $29.95Subtotal: -
HOT RODS Seal Output Shaft OSK0030
HOT RODS
$27.95HOT RODS Seal Output Shaft OSK0030A quick solution to repairing a leaking countershaft seal in one complete kit, Includes Hot Rods countershaft seal, countershaft bushing, O-rings, and sprocket nut washer (where applicable), Kits do not include water...09350593- SKU:
- 09350593
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- COUNTERSHAFT
- APPLICATION:
- TRANSMISSION
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$27.95 -
HOT RODS Seal Output Shaft OSK0029
HOT RODS
$34.95HOT RODS Seal Output Shaft OSK0029A quick solution to repairing a leaking countershaft seal in one complete kit, Includes Hot Rods countershaft seal, countershaft bushing, O-rings, and sprocket nut washer (where applicable), Kits do not include water...09350592- SKU:
- 09350592
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- COUNTERSHAFT
- APPLICATION:
- TRANSMISSION
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- SEAL
$34.95Qty in Cart: 0Quantity:Price:$34.95Subtotal:
