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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On Sale
KIBBLEWHITE Intake Valve - Yamaha 80-80762T
KIBBLEWHITE
MSRP: $109.33Now: $98.40Was: $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...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°
MSRP: $109.33Now: $98.40Was: $109.33 -
On Sale
KIBBLEWHITE Intake Valve - Yamaha 80-80872T
KIBBLEWHITE
MSRP: $109.33Now: $98.40Was: $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...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
MSRP: $109.33Now: $98.40Was: $109.33 -
On Sale
KIBBLEWHITE Exhaust Valve Guide 96-96430
KIBBLEWHITE
MSRP: $24.89Now: $22.40Was: $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...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
MSRP: $24.89Now: $22.40Was: $24.89Qty in Cart: 0Quantity:Price:MSRP: $24.89Now: $22.40Was: $24.89Subtotal: -
On Sale
KIBBLEWHITE Cylinder Head Service Kit 80-82400
KIBBLEWHITE
MSRP: $595.32Now: $500.74Was: $595.32A 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...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
MSRP: $595.32Now: $500.74Was: $595.32 -
On Sale
KIBBLEWHITE Valve Spring Kit 80-80206
KIBBLEWHITE
MSRP: $339.95Now: $285.94Was: $339.95High-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...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
MSRP: $339.95Now: $285.94Was: $339.95 -
On Sale
KIBBLEWHITE Intake Valve Guide 80-80220
KIBBLEWHITE
MSRP: $14.34Now: $12.91Was: $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...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
MSRP: $14.34Now: $12.91Was: $14.34 -
On Sale
KIBBLEWHITE Exhaust Valve Guide 80-80230
KIBBLEWHITE
MSRP: $14.34Now: $12.91Was: $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...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
MSRP: $14.34Now: $12.91Was: $14.34 -
On Sale
KIBBLEWHITE Intake Valve 80-80213H
KIBBLEWHITE
MSRP: $37.55Now: $33.80Was: $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...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°
MSRP: $37.55Now: $33.80Was: $37.55 -
On Sale
XCELDYNE Intake Valve Kit X2SIVM13001
XCELDYNE
MSRP: $44.49Now: $28.00Was: $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...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
MSRP: $44.49Now: $28.00Was: $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...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 -
On Sale
KIBBLEWHITE Spring Kit 30-31600
KIBBLEWHITE
MSRP: $207.83Now: $187.05Was: $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...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
MSRP: $207.83Now: $187.05Was: $207.83Qty in Cart: 0Quantity:Price:MSRP: $207.83Now: $187.05Was: $207.83Subtotal: -
On Sale
KIBBLEWHITE Intake Valve 40-40652
KIBBLEWHITE
MSRP: $35.22Now: $27.91Was: $35.22Intake valve performance directly impacts combustion efficiency, throttle response, and overall engine reliability—especially under high-RPM conditions. The KIBBLEWHITE Black Diamond™ 40-40652...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™
MSRP: $35.22Now: $27.91Was: $35.22 -
On Sale
KIBBLEWHITE Exhaust Valve 40-40656
KIBBLEWHITE
MSRP: $35.22Now: $27.91Was: $35.22Exhaust 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...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'
MSRP: $35.22Now: $27.91Was: $35.22 -
On Sale
KIBBLEWHITE Spring Kit 40-40660
KIBBLEWHITE
MSRP: $235.67Now: $198.23Was: $235.67A 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...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
MSRP: $235.67Now: $198.23Was: $235.67 -
On Sale
KIBBLEWHITE Valve Guide 40-40670
KIBBLEWHITE
MSRP: $17.83Now: $16.05Was: $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...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
MSRP: $17.83Now: $16.05Was: $17.83 -
On Sale
KIBBLEWHITE Intake Valve 40-40920
KIBBLEWHITE
MSRP: $31.01Now: $27.91Was: $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...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°
MSRP: $31.01Now: $27.91Was: $31.01 -
On Sale
KIBBLEWHITE Exhaust Valve 40-40925
KIBBLEWHITE
MSRP: $31.01Now: $27.91Was: $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...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
MSRP: $31.01Now: $27.91Was: $31.01 -
On Sale
KIBBLEWHITE Valve Guide 60-60730
KIBBLEWHITE
MSRP: $15.92Now: $14.33Was: $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%...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
MSRP: $15.92Now: $14.33Was: $15.92Qty in Cart: 0Quantity:Price:MSRP: $15.92Now: $14.33Was: $15.92Subtotal: -
On Sale
KIBBLEWHITE Valve Seal - 6mm 71017-4
KIBBLEWHITE
MSRP: $13.96Now: $12.56Was: $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...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
MSRP: $13.96Now: $12.56Was: $13.96 -
On Sale
KIBBLEWHITE Exhaust Valve Guide 82-82380
KIBBLEWHITE
MSRP: $18.54Now: $16.69Was: $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...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
MSRP: $18.54Now: $16.69Was: $18.54
