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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KIBBLEWHITE Intake Valve - TRX450R - Standard 30-30950
KIBBLEWHITE
$33.95KIBBLEWHITE Intake Valve TRX450R Standard 30-30950Black 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...09260416- SKU:
- 09260416
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- STEM DIAMETER IMPERIAL:
- 0.2158'
- HEAD DIAMETER METRIC:
- 36.00 MM
- MODEL:
- BLACK DIAMOND™
- APPLICATION:
- INTAKE
- LENGTH IMPERIAL:
- 3.315'
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- ATV
- TULIP ANGLE:
- 20°
- UNITS:
- EACH
$33.95 -
KIBBLEWHITE Spring Kit 30-30085
KIBBLEWHITE
$110.95KIBBLEWHITE Spring Kit 30-30085Spring 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 not...KW3030085- SKU:
- KW3030085
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- RIDING STYLE:
- OFF-ROAD
- SPRING LIFT IMPERIAL:
- 0.430'
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- MATERIAL:
- TITANIUM
- PRODUCT NAME:
- SPRING KIT
- SPRING OPEN PRESSURE:
- 201 LB
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE
$110.95 -
KIBBLEWHITE Exhaust Valve - TRX450R - Standard 30-30953
KIBBLEWHITE
$33.95KIBBLEWHITE Exhaust Valve TRX450R Standard 30-30953Black 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...09260418- SKU:
- 09260418
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- STEM DIAMETER IMPERIAL:
- 0.1957'
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 20°
- HEAD DIAMETER METRIC:
- 30.00 MM
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 3.310'
- RIDING STYLE:
- ATV
$33.95 -
KIBBLEWHITE Exhaust Valve 30-30090
KIBBLEWHITE
$54.95KIBBLEWHITE Exhaust Valve 30-30090Black 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...KW3030090- SKU:
- KW3030090
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- HEAD DIAMETER METRIC:
- 22.50 MM
- LENGTH IMPERIAL:
- 3.650'
- PRODUCT NAME:
- VALVE
- MODEL:
- BLACK DIAMOND™
- STEM DIAMETER IMPERIAL:
- 0.2150'
- TULIP ANGLE:
- 29°
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
$54.95 -
KIBBLEWHITE Spring Kit 30-31050
KIBBLEWHITE
$233.95KIBBLEWHITE Spring Kit 30-31050Spring 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 not...09260420- SKU:
- 09260420
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MATERIAL:
- TITANIUM
- SPRING LIFT IMPERIAL:
- 0.440'
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VALVE
- APPLICATION:
- INTAKE
- SPRING OPEN PRESSURE:
- INTAKE 147 LB, EXHAUST 203 LB
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING KIT
$233.95 -
KIBBLEWHITE Intake Valve - CRF450X - 2005-2007 - Standard 30-31062
KIBBLEWHITE
$33.95KIBBLEWHITE Intake Valve CRF450X 2005-2007 Standard 30-31062Black 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...09260421- SKU:
- 09260421
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 35.00 MM
- LENGTH IMPERIAL:
- 3.315'
- STEM DIAMETER IMPERIAL:
- 0.2158'
- UNITS:
- EACH
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 20°
- MODEL:
- BLACK DIAMOND™
$33.95 -
KIBBLEWHITE Intake Valve - CRF250R - 2008 - Standard 30-31162
KIBBLEWHITE
$39.95KIBBLEWHITE Intake Valve CRF250R 2008 Standard 30-31162Black 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...09260430- SKU:
- 09260430
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- INTAKE
- LENGTH IMPERIAL:
- 3.280'
- UNITS:
- EACH
- HEAD DIAMETER METRIC:
- 31.00 MM
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- TULIP ANGLE:
- 20°
- MODEL:
- BLACK DIAMOND™
- STEM DIAMETER IMPERIAL:
- 0.1957'
$39.95 -
KIBBLEWHITE Exhaust Valve - CRF250R - 2008 - Standard 30-31166
KIBBLEWHITE
$39.95KIBBLEWHITE Exhaust Valve CRF250R 2008 Standard 30-31166Black 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...09260434- SKU:
- 09260434
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- STEM DIAMETER IMPERIAL:
- 0.1760'
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 20°
- LENGTH IMPERIAL:
- 3.235'
- HEAD DIAMETER METRIC:
- 26.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$39.95 -
KIBBLEWHITE Intake Valve Guide 30-31170
KIBBLEWHITE
$15.95KIBBLEWHITE Intake Valve Guide 30-31170All 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.09260438- SKU:
- 09260438
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.1960'
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- OUTSIDE DIAMETER IMPERIAL:
- 0.3965'
- SIZE IMPERIAL:
- STANDARD
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE GUIDE
$15.95 -
KIBBLEWHITE Valve Spring Kit 30-3041
KIBBLEWHITE
$145.95KIBBLEWHITE Valve Spring Kit 30-3041Black Diamond™ valves feature one-piece stainless steel construction with stellite tips and special impregnation to improve wear properties and reduce friction; White Diamond® valves feature one-piece construction and...KW303041- SKU:
- KW303041
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- SPRING LIFT IMPERIAL:
- 0.400'
- APPLICATION:
- INTAKE
- MATERIAL:
- CHROME-SILICON
- SPRING OPEN PRESSURE:
- 192 LB
- SPRING SEAT PRESSURE:
- 76 LB
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- ATV
- SPRING LIFT:
- 0,400'
- TYPE:
- VALVE
$145.95 -
KIBBLEWHITE Intake/Exhaust Valve Guide 30-3100
KIBBLEWHITE
$32.95KIBBLEWHITE Intake/Exhaust Valve Guide 30-3100All 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.KW303100- SKU:
- KW303100
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- EXHAUST
- MATERIAL:
- AMPCO-45
- MATERIAL:
- NICKEL
- SIZE IMPERIAL:
- STANDARD
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- OUTSIDE DIAMETER IMPERIAL:
- 0.4355'
- PRODUCT NAME:
- VALVE GUIDE
- INSIDE DIAMETER IMPERIAL:
- 0.2155'
- MATERIAL:
- BRONZE
- RIDING STYLE:
- OFF-ROAD
$32.95 -
KIBBLEWHITE Valve Spring Kit 30-3111
KIBBLEWHITE
$110.95KIBBLEWHITE Valve Spring Kit 30-3111Black Diamond™ valves feature one-piece stainless steel construction with stellite tips and special impregnation to improve wear properties and reduce friction; White Diamond® valves feature one-piece construction and...KW303111- SKU:
- KW303111
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- MATERIAL:
- TITANIUM
- SPRING LIFT:
- 0,300'
- SPRING SEAT PRESSURE:
- 70 LB
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- SPRING OPEN PRESSURE:
- 157 LB
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- ATV
- SPRING LIFT IMPERIAL:
- 0.300'
- TYPE:
- VALVE
$110.95 -
KIBBLEWHITE Intake Kit 40-40350
KIBBLEWHITE
$197.95KIBBLEWHITE Intake Kit 40-40350Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves, Extends the life of the valvetrain and intake components by as much as 4x over...09260452- SKU:
- 09260452
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
- SPRING LIFT:
- 0,445'
- SPRING OPEN PRESSURE:
- 155 LB
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE KIT
- SPRING SEAT PRESSURE:
- 46 LB
- TYPE:
- CONVERSION
- SPRING LIFT IMPERIAL:
- 0.445'
$197.95 -
KIBBLEWHITE Intake Valve Guide 82-82220
KIBBLEWHITE
$26.95KIBBLEWHITE Intake Valve Guide 82-82220All 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.09261174- SKU:
- 09261174
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- VALVE GUIDE
- MATERIAL:
- C630 BRONZE
- APPLICATION:
- INTAKE
- INSIDE DIAMETER IMPERIAL:
- 0.2360'
- SIZE IMPERIAL:
- STANDARD
- OUTSIDE DIAMETER IMPERIAL:
- 0.4950'
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$26.95 -
KIBBLEWHITE Exhaust Valve 30-3117
KIBBLEWHITE
$40.95KIBBLEWHITE Exhaust Valve 30-3117Black 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...KW303117- SKU:
- KW303117
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MODEL:
- BLACK DIAMOND™
- TULIP ANGLE:
- 29°
- LENGTH IMPERIAL:
- 3.980'
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- HEAD DIAMETER METRIC:
- 29.00 MM
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- ATV
- STEM DIAMETER IMPERIAL:
- 0.2150'
$40.95 -
KIBBLEWHITE Intake/Exhaust Valve Guide 30-3120
KIBBLEWHITE
$30.95KIBBLEWHITE Intake/Exhaust Valve Guide 30-3120All 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.KW303120- SKU:
- KW303120
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.2150'
- OUTSIDE DIAMETER IMPERIAL:
- 0.4355'
- PRODUCT NAME:
- VALVE GUIDE
- SIZE IMPERIAL:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MATERIAL:
- AMPCO-45
- RIDING STYLE:
- ATV
$30.95 -
KIBBLEWHITE Valve Spring Kit 30-4021
KIBBLEWHITE
$78.95KIBBLEWHITE Valve Spring Kit 30-4021Black Diamond™ valves feature one-piece stainless steel construction with stellite tips and special impregnation to improve wear properties and reduce friction; White Diamond® valves feature one-piece construction and...KW304021- SKU:
- KW304021
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- SPRING LIFT:
- 0,450'
- SPRING OPEN PRESSURE:
- 202 LB
- TYPE:
- VALVE
- APPLICATION:
- INTAKE
- MATERIAL:
- TITANIUM
- PRODUCT NAME:
- SPRING KIT
- SPRING LIFT IMPERIAL:
- 0.450'
- SPRING SEAT PRESSURE:
- 66 LB
- APPLICATION:
- EXHAUST
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$78.95 -
KIBBLEWHITE Valve Spring Kit - Big Twin 20-20430
KIBBLEWHITE
$159.95KIBBLEWHITE Valve Spring Kit Big Twin 20-20430OE style replacement kit, Features dual super clean chrome silicon springs; heat-treated steel base washers, .415" lift, Includes steel retainers, Made in the U.S.A.09261442- SKU:
- 09261442
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- RIDING STYLE:
- STREET
- SPRING OPEN PRESSURE:
- 272 LB
- SPRING SEAT PRESSURE:
- 129 LB
- TYPE:
- VALVE
- COLLAR MATERIAL:
- STEEL
- MATERIAL:
- STEEL
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- SPRING KIT
- SPRING LIFT IMPERIAL:
- 0.415'
$159.95 -
KIBBLEWHITE Valve Spring Kit - Big Twin 20-20435
KIBBLEWHITE
$159.95KIBBLEWHITE Valve Spring Kit Big Twin 20-20435OE style replacement kit, Features dual super clean chrome silicon springs; heat-treated steel base washers, .415" lift, Includes steel retainers, Made in the U.S.A.09261443- SKU:
- 09261443
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- RIDING STYLE:
- STREET
- SPRING OPEN PRESSURE:
- 272 LB
- SPRING SEAT PRESSURE:
- 129 LB
- COLLAR MATERIAL:
- STEEL
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- SPRING LIFT IMPERIAL:
- 0.415'
$159.95 -
KIBBLEWHITE Valve Spring Kit - XL 20-20440
KIBBLEWHITE
$148.95KIBBLEWHITE Valve Spring Kit XL 20-20440OE style replacement kit, Features dual super clean chrome silicon springs; heat-treated steel base washers, .415" lift, Includes steel retainers, Made in the U.S.A.09261444- SKU:
- 09261444
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- COLLAR MATERIAL:
- STEEL
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- SPRING LIFT IMPERIAL:
- 0.400'
- SPRING SEAT PRESSURE:
- 95 LB
- TYPE:
- VALVE
- SPRING OPEN PRESSURE:
- 325 LB
$148.95
