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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Hot Cams Stage 2 Intake Camshaft for 2011-2016 Kawasaki KX250F 2220-2IN
HOT CAMS
$272.95HOT CAMS Camshaft 2220-2IN Elevate your engine's performance with the HOT CAMS Camshaft 2220-2IN, expertly engineered for racing enthusiasts. This high-performance camshaft is available in Stage 1 and Stage 2 options, providing tailored enhancements to...09250663- SKU:
- 09250663
- Availability:
- Ships Same Business Day
- Weight:
- 0.82 LBS
- PRODUCT NAME:
- CAMSHAFT
- APPLICATION:
- INTAKE
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- INTAKE DURATION IMPERIAL:
- 245°
- INTAKE LIFT METRIC:
- 9.65 MM
- TYPE:
- STAGE 2
$272.95 -
Hot Cams Exhaust Camshaft for Kawasaki KX 250 F 2011-2016 2221-2E
HOT CAMS
$297.95HOT CAMS Exhaust Camshaft 2221-2E Elevate your engine's performance with the HOT CAMS Exhaust Camshaft 2221-2E, designed specifically for high-performance racing applications. This camshaft optimizes both torque and horsepower, ensuring your engine...09250664- SKU:
- 09250664
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- PRODUCT NAME:
- CAMSHAFT
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- EXHAUST DURATION IMPERIAL:
- 245°
- UNITS:
- EACH
- EXHAUST LIFT METRIC:
- 9.65 MM
- TYPE:
- STAGE 2
$297.95 -
Hot Cams Stage 1 Camshaft for 2009 Honda CRF450R 1123-1
HOT CAMS
$403.95HOT CAMS Camshaft 1123-1 Elevate your racing experience with the HOT CAMS Camshaft 1123-1, engineered for high-performance applications. Designed as a drop-in solution, these camshafts seamlessly integrate with stock valve springs, offering a perfect...09250459- SKU:
- 09250459
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- INTAKE DURATION IMPERIAL:
- 235°
- APPLICATION:
- EXHAUST
- INTAKE LIFT METRIC:
- 9.60 MM
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- STAGE 1
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 248°
- EXHAUST LIFT METRIC:
- 8.70 MM
- RIDING STYLE:
- OFF-ROAD
$403.95 -
Hot Cams Stage 3 Camshaft for 2009 Honda CRF450R 1125-3
HOT CAMS
$220.95HOT CAMS Camshaft 1125-3 Elevate your racing performance with the HOT CAMS Camshaft 1125-3, engineered for enthusiasts seeking unparalleled power and responsiveness. Designed as a drop-in solution, these camshafts enhance both torque and horsepower,...09250461- SKU:
- 09250461
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- INTAKE LIFT METRIC:
- 10.40 MM
- APPLICATION:
- EXHAUST
- EXHAUST LIFT METRIC:
- 9.00 MM
- INTAKE DURATION IMPERIAL:
- 252°
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- STAGE 3
- EXHAUST DURATION IMPERIAL:
- 265°
$220.95Qty in Cart: 0Quantity:Price:$220.95Subtotal: -
Hot Cams Cam Chain Honda TRX700XX 2008-2009 HC92RH2010120
HOT CAMS
$50.95HOT CAMS Cam Chain HC92RH2010120 Experience unparalleled performance with the HOT CAMS Cam Chain HC92RH2010120. Designed with exclusive heat-treated links, this silent chain offers superior friction and impact resistance, ensuring longevity and...09251169- SKU:
- 09251169
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BASE FINISH:
- RAW
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- RAW
- MATERIAL:
- STEEL
- MODEL:
- SILENT
- CHAIN SIZE:
- 92RH2010
- PRODUCT NAME:
- CHAIN
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CAM
- UNITS:
- EACH
$50.95 -
Hot Cams Stage 1 Intake Camshaft for 2017-2019 Kawasaki KX250F 2311-1IN
HOT CAMS
$264.95HOT CAMS Camshaft 2311-1IN Elevate your racing performance with the HOT CAMS Camshaft 2311-1IN, engineered for enthusiasts seeking optimal power and responsiveness. This high-performance camshaft is available in Stage 1 and Stage 2 options, allowing you...09251242- SKU:
- 09251242
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- STAGE 1
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- INTAKE DURATION IMPERIAL:
- 242°
- INTAKE LIFT METRIC:
- 9.90 MM
- UNITS:
- EACH
$264.95 -
On Sale
Hot Cams Exhaust Camshaft for Kawasaki KX250F 2017-2018 2312-E
HOT CAMS
MSRP: $263.95Now: $172.00Was: $268.95HOT CAMS Exhaust Camshaft 2312-E Elevate your engine's performance with the HOT CAMS Exhaust Camshaft 2312-E, designed specifically for high-performance racing applications. This camshaft enhances throttle response and optimizes power delivery, ensuring...09251243- SKU:
- 09251243
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- EXHAUST DURATION IMPERIAL:
- 256°
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- STAGE 1
- EXHAUST LIFT METRIC:
- 9.65 MM
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STAGE 2
- UNITS:
- EACH
MSRP: $263.95Now: $172.00Was: $268.95Qty in Cart: 0Quantity:Price:MSRP: $263.95Now: $172.00Was: $268.95Subtotal: -
Hot Cams Valve Shim 9.48mm x 2.55mm for Honda CRF450R 2002-2009 5PK948255
HOT CAMS
$9.95HOT CAMS Valve Shim 9.48 x 2.55 - 5 Pack Elevate your engine performance with the HOT CAMS Valve Shim 9.48 x 2.55 replacement pack. Designed to seamlessly refill your Valve Shim Kits, these shims ensure optimal valve clearance for improved efficiency and...09261399- SKU:
- 09261399
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.55 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
$9.95 -
Hot Cams Valve Shim 9.48 x 2.60 for Honda CRF450R 2002-2012 5PK948260
HOT CAMS
$9.95HOT CAMS Valve Shim 9.48 x 2.60 - 5 Pack Enhance the performance of your engine with the HOT CAMS Valve Shim 9.48 x 2.60. This 5-pack of high-quality valve shims is designed to refill your Valve Shim Kits, ensuring optimal valve clearance and engine...09261400- SKU:
- 09261400
- 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:
- 2.60 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$9.95 -
Hot Cams Valve Shim 9.48mm x 2.85mm 5PK948285
HOT CAMS
$9.95HOT CAMS Valve Shim 9.48 x 2.85 - 5 Pack Enhance your engine's performance with the HOT CAMS Valve Shim 9.48 x 2.85. This 5-pack of high-quality shims is designed for precision fitting, ensuring optimal valve clearance and improved engine efficiency...09261405- SKU:
- 09261405
- 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
- RIDING STYLE:
- SNOW
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.85 MM
$9.95 -
Hot Cams Valve Shim 9.48mm x 2.90mm for 2006-2014 Yamaha YZ450F 5PK948290
HOT CAMS
$9.95HOT CAMS Valve Shim 9.48 x 2.90 - 5 Pack Enhance your engine's performance with the HOT CAMS Valve Shim 9.48 x 2.90. This convenient 5-pack is designed to refill your Valve Shim Kits, ensuring you have the right components for precise valve adjustments...09261406- SKU:
- 09261406
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- RIDING STYLE:
- UTV
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.90 MM
$9.95 -
Hot Cams Valve Shim 9.48mm x 2.95mm for Honda CRF450R 2002-2014 5PK948295
HOT CAMS
$9.95HOT CAMS Valve Shim 9.48 x 2.95 - 5 Pack Enhance your engine's performance with the HOT CAMS Valve Shim 9.48 x 2.95, designed for precision and durability. This five-pack of replacement shims is essential for maintaining optimal valve clearance in your...09261407- SKU:
- 09261407
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- VALVE SHIM THICKNESS METRIC:
- 2.95 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
$9.95 -
PROX Piston Kit 01.1408.150
PROX
$185.95PROX Piston Kit 01.1408.150Manufactured 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 supplied in a kit...09030820- SKU:
- 09030820
- Availability:
- Ships Same Business Day
- Weight:
- 1.34 LBS
- PISTON SIZE METRIC:
- +1.50 MM
- BORE SIZE METRIC:
- 90.50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- EACH
- PRODUCT NAME:
- PISTON KIT
$185.95 -
PROX Piston Kit 01.1408.200
PROX
$185.95PROX Piston Kit 01.1408.200Manufactured 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 supplied in a kit...09030821- SKU:
- 09030821
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 91.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON SIZE METRIC:
- +2.00 MM
- TYPE:
- TOP END
- UNITS:
- EACH
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
$185.95 -
On Sale
UFO Clutch Cover - Orange - KTM AC02411
UFO
MSRP: $31.95Now: $20.00Was: $31.95UFO Clutch Cover Orange KTM AC02411Constructed of abrasion/temperature-resistant PA6 plastic to give optimum protection against impacts, Perfect fit to the stock clutch cover (will not fit with aftermarket covers), Slim design to minimize interference...09401589- SKU:
- 09401589
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- PLASTIC
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- ORANGE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
MSRP: $31.95Now: $20.00Was: $31.95Qty in Cart: 0Quantity:Price:MSRP: $31.95Now: $20.00Was: $31.95Subtotal: -
On Sale
UFO Clutch Cover - Orange - KTM AC02412
UFO
MSRP: $31.95Now: $20.00Was: $31.95UFO Clutch Cover Orange KTM AC02412Constructed of abrasion/temperature-resistant PA6 plastic to give optimum protection against impacts, Perfect fit to the stock clutch cover (will not fit with aftermarket covers), Slim design to minimize interference...09401590- SKU:
- 09401590
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- PLASTIC
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- ORANGE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
MSRP: $31.95Now: $20.00Was: $31.95Qty in Cart: 0Quantity:Price:MSRP: $31.95Now: $20.00Was: $31.95Subtotal: -
VERTEX Piston Kit - Standard 22877B
VERTEX
$127.95VERTEX Piston Kit Standard 22877BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09100941- SKU:
- 09100941
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- ENGINE TYPE:
- 2-STROKE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 48.00 MM
- PISTON DIAMETER METRIC:
- 47.95 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 85 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
$127.95 -
VERTEX Piston Kit - Standard 22991A
VERTEX
$158.95VERTEX Piston Kit Standard 22991AAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09100984- SKU:
- 09100984
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 105 CC
- PISTON DIAMETER METRIC:
- 51.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 52.00 MM
- STYLE:
- CAST REPLICA
$158.95 -
VERTEX Piston Kit 22532B
VERTEX
$182.95VERTEX Piston Kit 22532BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09100987- SKU:
- 09100987
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- PISTON DIAMETER METRIC:
- 54.20 MM
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.25 MM
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 125 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
$182.95 -
VERTEX Piston Kit - Standard 23383A
VERTEX
$201.95VERTEX Piston Kit Standard 23383AAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09100990- SKU:
- 09100990
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- STYLE:
- CAST REPLICA
- PISTON DIAMETER METRIC:
- 55.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- CYLINDER DIAMETER METRIC:
- 56.00 MM
- DISPLACEMENT:
- 144 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$201.95
