Dirt Bike Engine Valves and Parts
Dirt Bike Engine Valves & Parts: Kibblewhite Black Diamond Exhaust Valves & Spring Kits at JJ Motorsports
Upgrade your dirt bike's valvetrain for maximum flow, heat resistance, and durability with premium valves and parts from JJ Motorsports, precision-engineered for superior performance in motocross, enduro, and trail riding. Our selection includes Black Diamond stainless steel exhaust valves, high-RPM spring kits, keepers, seals, and guides designed for increased lift, reduced wear, and reliable operation under extreme valve float conditions. Compatible with popular 4-stroke models like Honda CRF, Yamaha YZ/WR, KTM SX/EXC, and more, these Kibblewhite components feature one-piece forging, nitride coatings, and dual-spring technology to enhance airflow, prevent valve train failure, and support big-bore or high-compression builds. From exhaust valves with swirl-polished stems to titanium retainer spring kits for lightweight strength, rebuild your cylinder head for championship-level power, longevity, and confidence on every rev.
Shop trusted brands like Kibblewhite for race-proven quality. Explore related categories such as dirt bike piston and ring kits for full top-end rebuilds or dirt bike engine for camshafts and gaskets.
Top Dirt Bike Valve & Parts
- Kibblewhite Valve - Exhaust - Black Diamond 30-33616 – One-piece Black Diamond stainless steel exhaust valve with nitride coating, swirl-polished stem, and hard tip; designed for high-RPM durability and flow in 4-stroke engines.
- Kibblewhite Spring Kit 40-41600 – Dual-spring kit with titanium retainers, chromoly seats, and high-strength springs; supports increased lift and RPM while preventing valve float in performance builds.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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KIBBLEWHITE Intake Valve - Yamaha 80-80762T
KIBBLEWHITE
$109.33Precision intake flow depends on valve quality, and Kibblewhite's Tensilite® valves are engineered to deliver exact tolerances and superior durability under extreme combustion pressures. The CrN PVD coating reduces friction loss while resisting impact...09262768- SKU:
- 09262768
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- HEAD DIAMETER METRIC:
- 36.00 MM
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.2160'
- MATERIAL:
- TITANIUM
- APPLICATION:
- INTAKE
- MODEL:
- TENSILITE®
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TULIP ANGLE:
- 20°
$109.33 -
KIBBLEWHITE Intake Valve - Yamaha 80-80872T
KIBBLEWHITE
$109.33Intake valve performance directly impacts cylinder filling efficiency and combustion consistency—two critical factors that separate competitive engines from the rest. KIBBLEWHITE's Tensilite® valves are precision-forged from premium titanium alloy and...09262770- SKU:
- 09262770
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 37.00 MM
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- TENSILITE®
- TULIP ANGLE:
- 18°
- MATERIAL:
- TITANIUM
- STEM DIAMETER IMPERIAL:
- 0.2160'
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE
$109.33 -
KIBBLEWHITE Exhaust Valve Guide 96-96430
KIBBLEWHITE
$24.89Valve guides are critical to maintaining proper valve sealing and preventing oil blow-by in high-performance engines. Factory guides wear quickly under racing conditions, leading to increased oil consumption and compromised combustion chamber integrity...09262711- SKU:
- 09262711
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.4352'
- RIDING STYLE:
- OFF-ROAD
- SIZE IMPERIAL:
- STANDARD
- INSIDE DIAMETER IMPERIAL:
- 0.1955'
- MATERIAL:
- AMPCO-45
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MATERIAL:
- NICKEL
- MATERIAL:
- STAINLESS STEEL
$24.89Qty in Cart: 0Quantity:Price:$24.89Subtotal: -
KIBBLEWHITE Cylinder Head Service Kit 80-82400
KIBBLEWHITE
$556.38A complete cylinder head refresh requires precision components that work together—not a collection of aftermarket parts that compromise reliability. The KIBBLEWHITE 80-82400 Service Kit eliminates guesswork by bundling every critical component needed for...09263233- SKU:
- 09263233
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- MATERIAL:
- C630 BRONZE
- MATERIAL:
- TITANIUM
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- APPLICATION:
- INTAKE
- SPRING LIFT IMPERIAL:
- 0.380'
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT:
- 0,380'
- SPRING SEAT PRESSURE:
- 39 LB
- RIDING STYLE:
- OFF-ROAD
- SPRING OPEN PRESSURE:
- 86 LB
- UNITS:
- KIT
$556.38 -
KIBBLEWHITE Valve Spring Kit 80-80206
KIBBLEWHITE
$317.71High-revving engines demand valve springs engineered to handle sustained pressure and extreme RPM cycles without failure. The KIBBLEWHITE 80-80206 Valve Spring Kit delivers the reliability and durability required for both track and street applications,...09260095- SKU:
- 09260095
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- MATERIAL:
- TITANIUM
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- ATV
- SPRING LIFT IMPERIAL:
- 0.380'
- SPRING OPEN PRESSURE:
- 86 LB
- SPRING LIFT:
- 0,380'
- SPRING SEAT PRESSURE:
- 39 LB
- TYPE:
- VALVE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$317.71 -
KIBBLEWHITE Intake Valve Guide 80-80220
KIBBLEWHITE
$14.34Valve guide wear is one of the most common causes of oil consumption and reduced ring sealing in high-performance engines. The KIBBLEWHITE Intake Valve Guide 80-80220 is engineered with Ampco-45 alloy to dissipate heat efficiently while resisting the...09260096- SKU:
- 09260096
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- C630 BRONZE
- SIZE IMPERIAL:
- STANDARD
- INSIDE DIAMETER IMPERIAL:
- 0.1768'
- OUTSIDE DIAMETER IMPERIAL:
- 0.3957'
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$14.34 -
KIBBLEWHITE Exhaust Valve Guide 80-80230
KIBBLEWHITE
$14.34Valve guides are critical wear items that directly impact engine reliability and performance—poor guides lead to valve recession, oil consumption, and catastrophic engine failure. The KIBBLEWHITE Exhaust Valve Guide 80-80230 uses Ampco-45 compound, a...09260101- SKU:
- 09260101
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- VALVE GUIDE
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- OFF-ROAD
- INSIDE DIAMETER IMPERIAL:
- 0.1961'
- RIDING STYLE:
- ATV
- SIZE IMPERIAL:
- STANDARD
- APPLICATION:
- EXHAUST
- OUTSIDE DIAMETER IMPERIAL:
- 0.3957'
- UNITS:
- EACH
$14.34 -
KIBBLEWHITE Intake Valve 80-80213H
KIBBLEWHITE
$37.55Kibblewhite's White Diamond™ intake valves deliver the reliability and durability your engine demands under extreme conditions. Built from premium EV8 stainless steel or Inconel-751 and finished with a hard chrome coating, these valves resist thermal...09260106- SKU:
- 09260106
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 27.00 MM
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- SIZE METRIC:
- STANDARD
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 3.040'
- MODEL:
- WHITE DIAMOND™
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER IMPERIAL:
- 0.1765'
- RIDING STYLE:
- ATV
- TULIP ANGLE:
- 15°
$37.55 -
XCELDYNE Intake Valve Kit X2SIVM13001
XCELDYNE
$44.49A quality intake valve kit is fundamental to unlocking your engine's full potential—restrictive or worn valves directly limit airflow and kill horsepower. The XCELDYNE X2SIVM13001 delivers the high-flow design and durability you need for sustained...09262206- SKU:
- 09262206
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- +1 MM HEAD DIAMETER
- BASE COLOR:
- SILVER
- MODEL:
- X2
- UNITS:
- EACH
- COLOR/FINISH:
- STEEL
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE
- APPLICATION:
- SINGLE INTAKE
- RIDING STYLE:
- ATV
- STYLE:
- HIGH-FLOW
$44.49 -
XCELDYNE Intake Valve Kit X2SIVM42002
XCELDYNE
$40.04If you're serious about extracting maximum power from your engine, valve quality directly impacts combustion efficiency, flow rates, and reliability under high RPM conditions. The XCELDYNE X2SIVM42002 Intake Valve Kit delivers a complete, matched...09262216- SKU:
- 09262216
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- OUTER
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- HIGH-FLOW
- BASE COLOR:
- SILVER
- APPLICATION:
- SINGLE INTAKE
- UNITS:
- EACH
- COLOR/FINISH:
- STEEL
- MODEL:
- X2
- PRODUCT NAME:
- VALVE
$40.04 -
KIBBLEWHITE Spring Kit 30-31600
KIBBLEWHITE
$207.83Valve spring performance is foundational to engine reliability and RPM capability—inadequate springs lead to valve float, bent pushrods, and catastrophic failure. The KIBBLEWHITE Spring Kit 30-31600 delivers the consistent preload and lift...09262345- SKU:
- 09262345
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- SPRING LIFT IMPERIAL:
- 0.440'
- SPRING OPEN PRESSURE:
- INTAKE 147 LB, EXHAUST 203 LB
- MATERIAL:
- TITANIUM
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE
$207.83Qty in Cart: 0Quantity:Price:$207.83Subtotal: -
KIBBLEWHITE Intake Valve 40-40652
KIBBLEWHITE
$31.01Intake valve performance directly impacts combustion efficiency, throttle response, and overall engine reliability—especially under high-RPM conditions. The KIBBLEWHITE Black Diamond™ 40-40652 delivers measurable gains in flow characteristics and...09262355- SKU:
- 09262355
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- STEM DIAMETER IMPERIAL:
- 0.2155'
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 20°
- HEAD DIAMETER METRIC:
- 35.99 MM
- LENGTH IMPERIAL:
- 3.080'
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
$31.01 -
KIBBLEWHITE Exhaust Valve 40-40656
KIBBLEWHITE
$31.01Exhaust valves are mission-critical components that directly impact cylinder sealing, heat management, and engine longevity. The KIBBLEWHITE 40-40656 is engineered to handle extreme combustion temperatures and repeated thermal cycling without...09262357- SKU:
- 09262357
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 20°
- HEAD DIAMETER METRIC:
- 31.01 MM
- LENGTH IMPERIAL:
- 3.030'
- MODEL:
- BLACK DIAMOND™
- STEM DIAMETER IMPERIAL:
- 0.2150'
$31.01 -
KIBBLEWHITE Spring Kit 40-40660
KIBBLEWHITE
$220.26A quality valve spring kit is fundamental to any high-performance engine build—it's what keeps your valvetrain stable under extreme RPMs and boost conditions. The KIBBLEWHITE Spring Kit 40-40660 delivers the reliability you need for forced induction,...09262359- SKU:
- 09262359
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- SPRING LIFT IMPERIAL:
- 0.415'
- SPRING OPEN PRESSURE:
- INTAKE 169 LB, EXHAUST 170 LB
- TYPE:
- VALVE
- MATERIAL:
- TITANIUM
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- KIT
$220.26 -
KIBBLEWHITE Valve Guide 40-40670
KIBBLEWHITE
$17.83Valve guide wear directly impacts compression, oil consumption, and overall engine reliability—making a quality replacement essential for any rebuild or high-mileage refresh. The KIBBLEWHITE 40-40670 uses Ampco-45 bronze, engineered specifically to...09262360- SKU:
- 09262360
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- RIDING STYLE:
- OFF-ROAD
- INSIDE DIAMETER IMPERIAL:
- 0.2150'
- MATERIAL:
- NICKEL
- SIZE IMPERIAL:
- STANDARD
- MATERIAL:
- AMPCO-45
- OUTSIDE DIAMETER IMPERIAL:
- 0.4365'
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MATERIAL:
- BRONZE
$17.83 -
KIBBLEWHITE Intake Valve 40-40920
KIBBLEWHITE
$31.01Intake valve performance directly impacts combustion efficiency, cylinder head durability, and overall engine longevity. The Kibblewhite Black Diamond™ 40-40920 delivers measurable gains in flow characteristics and wear resistance through precision...09262372- SKU:
- 09262372
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- STEM DIAMETER IMPERIAL:
- 0.1960'
- LENGTH IMPERIAL:
- 3.610'
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- UTV
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 30.00 MM
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- ATV
- TULIP ANGLE:
- 10°
$31.01 -
KIBBLEWHITE Exhaust Valve 40-40925
KIBBLEWHITE
$31.01Exhaust valves are critical to engine reliability and performance—they endure extreme heat, pressure, and chemical exposure cycle after cycle. The KIBBLEWHITE Black Diamond™ valve delivers the durability and precision you need to maintain consistent...09262375- SKU:
- 09262375
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- LENGTH IMPERIAL:
- 3.655'
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- ATV
- STEM DIAMETER IMPERIAL:
- 0.1955'
- TULIP ANGLE:
- 10°
- HEAD DIAMETER METRIC:
- 27.00 MM
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- UTV
$31.01 -
KIBBLEWHITE Valve Guide 60-60730
KIBBLEWHITE
$15.92Valve guides are critical to engine longevity, and Kibblewhite's 60-60730 delivers the thermal management and wear resistance your high-performance build demands. Manufactured from Ampco-45—an 80% copper, 5% nickel compound—these guides dissipate heat...09262381- SKU:
- 09262381
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.4170'
- PRODUCT NAME:
- VALVE GUIDE
- APPLICATION:
- EXHAUST
- MATERIAL:
- AMPCO-45
- MATERIAL:
- NICKEL
- SIZE IMPERIAL:
- STANDARD
- INSIDE DIAMETER IMPERIAL:
- 0.2155'
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$15.92 -
KIBBLEWHITE Valve Seal - 6mm 71017-4
KIBBLEWHITE
$13.96Valve seal integrity is critical to engine longevity and oil consumption control—compromised seals lead to blow-by, performance loss, and costly engine damage. KIBBLEWHITE's solid Viton® construction delivers the durability and precision fit your engine...09262383- SKU:
- 09262383
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- STEM DIAMETER METRIC:
- 6.00 MM
- APPLICATION:
- EXHAUST
- OUTSIDE DIAMETER IMPERIAL:
- 0.4750'
- PRODUCT NAME:
- SEAL
- TYPE:
- VALVE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- MATERIAL:
- VITON
- UNITS:
- 4 PACK
$13.96Qty in Cart: 0Quantity:Price:$13.96Subtotal: -
KIBBLEWHITE Exhaust Valve Guide 82-82380
KIBBLEWHITE
$18.54Valve guide wear is one of the most common causes of oil consumption and compression loss in high-mileage engines. The KIBBLEWHITE Exhaust Valve Guide 82-82380 replaces worn guides with a precision-engineered component designed to restore proper valve...09262397- SKU:
- 09262397
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- EXHAUST
- MATERIAL:
- AMPCO-45
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- ATV
- SIZE IMPERIAL:
- STANDARD
- INSIDE DIAMETER IMPERIAL:
- 0.2155'
- OUTSIDE DIAMETER IMPERIAL:
- 0.4353'
- UNITS:
- EACH
$18.54
