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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KIBBLEWHITE Valve Guide 20-4321C
KIBBLEWHITE
$10.95KIBBLEWHITE Valve Guide 20-4321CPrecision-machined from cast iron, Compatible with no-lead fuel and accept any type of valve-stem material, Made in the U.S.A.DS199760- SKU:
- DS199760
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- EXHAUST
- MATERIAL:
- CAST IRON
- SIZE IMPERIAL:
- OVERSIZE (+0.001')
- INSIDE DIAMETER IMPERIAL:
- 0.3090'
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- OUTSIDE DIAMETER IMPERIAL:
- 0.5630'
$10.95 -
KIBBLEWHITE Valve Guide 20-4322C
KIBBLEWHITE
$10.95KIBBLEWHITE Valve Guide 20-4322CPrecision-machined from cast iron, Compatible with no-lead fuel and accept any type of valve-stem material, Made in the U.S.A.DS199761- SKU:
- DS199761
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- CAST IRON
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- INSIDE DIAMETER IMPERIAL:
- 0.3090'
- UNITS:
- EACH
- OUTSIDE DIAMETER IMPERIAL:
- 0.5640'
- SIZE IMPERIAL:
- OVERSIZE (+0.002')
$10.95 -
KIBBLEWHITE Intake Valve - XL 20-4258
KIBBLEWHITE
$37.95KIBBLEWHITE Intake Valve XL 20-4258One-piece stainless-steel, stellite-tipped valves impregnated by a special nitrided process with .002" depth and .0002" surface buildup to improve wear properties and reduce friction, This process provides resistance to...DS198962- SKU:
- DS198962
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- APPLICATION:
- INTAKE
- HEAD DIAMETER IMPERIAL:
- 1.825'
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- STEM DIAMETER IMPERIAL:
- 0.3090'
- TULIP ANGLE:
- 23°
- LENGTH IMPERIAL:
- 3.562'
- MODEL:
- BLACK DIAMOND™
$37.95 -
KIBBLEWHITE Exhaust Valve 20-4195
KIBBLEWHITE
$31.01KIBBLEWHITE Exhaust Valve 20-4195One-piece stainless-steel, stellite-tipped valves impregnated by a special nitrided process with .002" depth and .0002" surface buildup to improve wear properties and reduce friction, This process provides resistance to...DS198970- SKU:
- DS198970
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.3760'
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 3.810'
- APPLICATION:
- EXHAUST
- HEAD DIAMETER IMPERIAL:
- 1.750'
- MODEL:
- BLACK DIAMOND™
- TULIP ANGLE:
- 29°
$31.01 -
KIBBLEWHITE Intake Valve 20-4194
KIBBLEWHITE
$31.01KIBBLEWHITE Intake Valve 20-4194One-piece stainless-steel, stellite-tipped valves impregnated by a special nitrided process with .002" depth and .0002" surface buildup to improve wear properties and reduce friction, This process provides resistance to...DS198971- SKU:
- DS198971
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- INTAKE
- LENGTH IMPERIAL:
- 3.885'
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- MODEL:
- BLACK DIAMOND™
- HEAD DIAMETER IMPERIAL:
- 1.950'
- STEM DIAMETER IMPERIAL:
- 0.3765'
- TULIP ANGLE:
- 23°
$31.01 -
KIBBLEWHITE Intake Valve - Big Twin 20-4171
KIBBLEWHITE
$29.81KIBBLEWHITE Intake Valve Big Twin 20-4171One-piece stainless-steel, stellite-tipped valves impregnated by a special nitrided process with .002" depth and .0002" surface buildup to improve wear properties and reduce friction, This process provides...DS198972- SKU:
- DS198972
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- LENGTH IMPERIAL:
- 4.445'
- STEM DIAMETER IMPERIAL:
- 0.3100'
- TULIP ANGLE:
- 23°
- HEAD DIAMETER IMPERIAL:
- 1.840'
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- APPLICATION:
- INTAKE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$29.81 -
KIBBLEWHITE Intake Valve - Big Twin 20-4169
KIBBLEWHITE
$37.95KIBBLEWHITE Intake Valve Big Twin 20-4169One-piece stainless-steel, stellite-tipped valves impregnated by a special nitrided process with .002" depth and .0002" surface buildup to improve wear properties and reduce friction, This process provides...DS198973- SKU:
- DS198973
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- APPLICATION:
- INTAKE
- HEAD DIAMETER IMPERIAL:
- 1.940'
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 4.400'
- TULIP ANGLE:
- 23°
- RIDING STYLE:
- STREET
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.3107'
$37.95 -
KIBBLEWHITE Compression Release - M10 - 1.050" 20-21250
KIBBLEWHITE
$62.50KIBBLEWHITE Compression Release M10 1.050" 20-21250Help reduce hot start issues and starter/battery loads, Have 5-7 Newtons of closing force resistance, Custom molded knobs ensure they stay cool to the touch and are easy to operate, Require an M10 x 1.00...9500887- SKU:
- 9500887
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- DIAMETER - THREAD SIZE:
- M10 X 1.0
- DIAMETER - THREAD SIZE METRIC:
- M10 X 1.0
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- CHROME
- LENGTH IMPERIAL:
- 1.400'
- PRODUCT NAME:
- VALVE
- TYPE:
- COMPRESSION RELEASE
$62.50 -
KIBBLEWHITE Compression Release - M10 - 1.050" 20-21255
KIBBLEWHITE
$62.50KIBBLEWHITE Compression Release M10 1.050" 20-21255Help reduce hot start issues and starter/battery loads, Have 5-7 Newtons of closing force resistance, Custom molded knobs ensure they stay cool to the touch and are easy to operate, Require an M10 x 1.00...9500888- SKU:
- 9500888
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- UNITS:
- PAIR
- COLOR/FINISH:
- BLACK
- LENGTH IMPERIAL:
- 1.730'
- PRODUCT NAME:
- VALVE
- COLOR/FINISH:
- CHROME
- DIAMETER - THREAD SIZE:
- M10 X 1.0
- DIAMETER - THREAD SIZE METRIC:
- M10 X 1.0
- RIDING STYLE:
- STREET
- TYPE:
- COMPRESSION RELEASE
$62.50 -
KIBBLEWHITE Compression Release - M10 - 1.050" 20-21260
KIBBLEWHITE
$62.50KIBBLEWHITE Compression Release M10 1.050" 20-21260Help reduce hot start issues and starter/battery loads, Have 5-7 Newtons of closing force resistance, Custom molded knobs ensure they stay cool to the touch and are easy to operate, Require an M10 x 1.00...9500889- SKU:
- 9500889
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- BLACK
- UNITS:
- PAIR
- COLOR/FINISH:
- CHROME
- DIAMETER - THREAD SIZE:
- M10 X 1.0
- DIAMETER - THREAD SIZE METRIC:
- M10 X 1.0
- LENGTH IMPERIAL:
- 1.750'
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- VALVE
- TYPE:
- COMPRESSION RELEASE
$62.50 -
KIBBLEWHITE Valve Stem Seal - Twin Cam 71030-4
KIBBLEWHITE
$11.95KIBBLEWHITE Valve Stem Seal Twin Cam 71030-4Solid Viton™ and solid PTFE seals utilize choker spring and lower tension spring to maintain optimal seal under high heat/stress conditions, For use with stock intake and exhaust valve guides, Made in the U.S.A.9350458- SKU:
- 9350458
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- SEAL
- MATERIAL:
- VITON
- UNITS:
- 4 PACK
- RIDING STYLE:
- STREET
- TYPE:
- VALVE STEM
$11.95 -
KIBBLEWHITE Valve Guide 60-60320
KIBBLEWHITE
$17.95KIBBLEWHITE Valve Guide 60-60320All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.9260291- SKU:
- 9260291
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.1955'
- OUTSIDE DIAMETER IMPERIAL:
- 0.4170'
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MATERIAL:
- C630 BRONZE
- SIZE IMPERIAL:
- STANDARD
$17.95 -
KIBBLEWHITE Valve Spring Kit 30-30880
KIBBLEWHITE
$220.95KIBBLEWHITE Valve Spring Kit 30-30880Spring kits contain springs and titanium upper collars; lower collars included as required; spring kits are engineered for use with standard and oversized valves, Spring kits come complete for one motor, Keepers are...9260293- SKU:
- 9260293
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING KIT
- APPLICATION:
- INTAKE
- SPRING OPEN PRESSURE:
- 143 LB
- RIDING STYLE:
- OFF-ROAD
- SPRING LIFT IMPERIAL:
- 0.350'
- TYPE:
- VALVE
- MATERIAL:
- TITANIUM
- UNITS:
- KIT
$220.95 -
KIBBLEWHITE Intake Valve - CRF150R - Standard 30-30910
KIBBLEWHITE
$39.95KIBBLEWHITE Intake Valve CRF150R Standard 30-30910Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and...9260298- SKU:
- 9260298
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- BLACK DIAMOND™
- STEM DIAMETER IMPERIAL:
- 0.1765'
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- APPLICATION:
- INTAKE
- TULIP ANGLE:
- 19°
- UNITS:
- EACH
- HEAD DIAMETER METRIC:
- 26.00 MM
- LENGTH IMPERIAL:
- 3.065'
- RIDING STYLE:
- OFF-ROAD
$39.95 -
KIBBLEWHITE Intake Valve Guide 30-31470
KIBBLEWHITE
$22.95KIBBLEWHITE Intake Valve Guide 30-31470All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.9261132- SKU:
- 9261132
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.1961'
- PRODUCT NAME:
- VALVE GUIDE
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- SIZE IMPERIAL:
- STANDARD
- OUTSIDE DIAMETER IMPERIAL:
- 0.3965'
- UNITS:
- EACH
$22.95 -
KIBBLEWHITE Intake Valve 80-80060
KIBBLEWHITE
$54.95KIBBLEWHITE Intake Valve 80-80060Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the U...KW8080060- SKU:
- KW8080060
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- UTV
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.2355'
- TULIP ANGLE:
- 15°
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 30.00 MM
- LENGTH IMPERIAL:
- 3.960'
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$54.95 -
KIBBLEWHITE Exhaust Valve 80-80063
KIBBLEWHITE
$54.95KIBBLEWHITE Exhaust Valve 80-80063Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the...KW8080063- SKU:
- KW8080063
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- HEAD DIAMETER METRIC:
- 32.00 MM
- LENGTH IMPERIAL:
- 3.650'
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- UTV
- TULIP ANGLE:
- 25°
- RIDING STYLE:
- ATV
- STEM DIAMETER IMPERIAL:
- 0.2348'
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MODEL:
- BLACK DIAMOND™
$54.95 -
KIBBLEWHITE Intake/Exhaust Valve Guide 80-8010
KIBBLEWHITE
$19.95KIBBLEWHITE Intake/Exhaust Valve Guide 80-8010All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.KW808010- SKU:
- KW808010
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
- OUTSIDE DIAMETER IMPERIAL:
- 0.4942'
- SIZE IMPERIAL:
- STANDARD
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- INSIDE DIAMETER IMPERIAL:
- 0.2750'
- MATERIAL:
- AMPCO-45
- RIDING STYLE:
- ATV
$19.95 -
KIBBLEWHITE Exhaust Valve - TRX450R - 31mm 30-30954
KIBBLEWHITE
$33.95KIBBLEWHITE Exhaust Valve TRX450R 31mm 30-30954Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear,...9260419- SKU:
- 9260419
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD DIAMETER METRIC:
- 31.00 MM
- MODEL:
- BLACK DIAMOND™
- STEM DIAMETER IMPERIAL:
- 0.1957'
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 20°
- LENGTH IMPERIAL:
- 3.310'
$33.95 -
KIBBLEWHITE Intake Valve 30-30120
KIBBLEWHITE
$54.95KIBBLEWHITE Intake Valve 30-30120Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the U...KW3030120- SKU:
- KW3030120
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TULIP ANGLE:
- 23°
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 30.00 MM
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- LENGTH IMPERIAL:
- 3.605'
- MATERIAL:
- STAINLESS STEEL
- STEM DIAMETER IMPERIAL:
- 0.2145'
- UNITS:
- EACH
$54.95Qty in Cart: 0Quantity:Price:$54.95Subtotal:
