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
-
On Sale
KIBBLEWHITE Exhaust Valve 96-96516
KIBBLEWHITE
MSRP: $54.10Now: $48.69Was: $54.10Exhaust valves endure extreme heat cycles and abrasive combustion byproducts—stock units wear prematurely and compromise engine efficiency. The KIBBLEWHITE Black Diamond™ Exhaust Valve (96-96516) extends valve life significantly through superior...09263044- SKU:
- 09263044
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD DIAMETER METRIC:
- 33.15 MM
- TULIP ANGLE:
- 30°
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- LENGTH IMPERIAL:
- 3.645'
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- BLACK DIAMOND™
- STEM DIAMETER IMPERIAL:
- 0.2353'
- UNITS:
- EACH
MSRP: $54.10Now: $48.69Was: $54.10 -
On Sale
KIBBLEWHITE Valve Guide - Exhaust 96-96520-E
KIBBLEWHITE
MSRP: $22.95Now: $20.66Was: $22.95A worn or damaged valve guide compromises cylinder head integrity and directly impacts engine performance and longevity. KIBBLEWHITE's precision-machined exhaust valve guides restore proper valve-seat alignment and sealing, ensuring consistent combustion...09263046- SKU:
- 09263046
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MATERIAL:
- CAST IRON
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- SIZE IMPERIAL:
- STANDARD
- INSIDE DIAMETER IMPERIAL:
- 0.2353'
- OUTSIDE DIAMETER IMPERIAL:
- 0.4352'
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
MSRP: $22.95Now: $20.66Was: $22.95Qty in Cart: 0Quantity:Price:MSRP: $22.95Now: $20.66Was: $22.95Subtotal: -
On Sale
KIBBLEWHITE Valve Guide Seal - Viton 71029-4
KIBBLEWHITE
MSRP: $13.96Now: $12.56Was: $13.96Valve guide seals are critical to engine longevity—they prevent oil from seeping into the combustion chamber, which causes smoking, fouling, and accelerated wear on your rings and cylinders. KIBBLEWHITE's Viton seals are engineered to withstand extreme...09263047- SKU:
- 09263047
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- VITON
- PRODUCT NAME:
- SEAL
- UNITS:
- 4 PACK
- OUTSIDE DIAMETER IMPERIAL:
- 0.520'
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- STEM DIAMETER IMPERIAL:
- 0.2360'
- APPLICATION:
- INTAKE
- TYPE:
- VALVE GUIDE
MSRP: $13.96Now: $12.56Was: $13.96 -
On Sale
KIBBLEWHITE Intake Valve - Standard - Titanium - 2013-2018 96-96512T
KIBBLEWHITE
MSRP: $109.33Now: $98.40Was: $109.33Titanium intake valves are essential for high-rpm applications where thermal stability and durability directly impact engine reliability and performance. Kibblewhite's Tensilite® valves are precision-forged from aerospace-grade titanium and finished with...09263050- SKU:
- 09263050
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MATERIAL:
- TITANIUM
- MODEL:
- TENSILITE®
- TULIP ANGLE:
- 15°
- HEAD DIAMETER METRIC:
- 39.93 MM
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- STEM DIAMETER IMPERIAL:
- 0.2358'
- UNITS:
- EACH
MSRP: $109.33Now: $98.40Was: $109.33 -
On Sale
KIBBLEWHITE Exhaust Valve - Standard - Titanium - 2013-2018 96-96516T
KIBBLEWHITE
MSRP: $109.33Now: $98.40Was: $109.33Exhaust valves are critical to your engine's breathing efficiency and longevity—especially under high-RPM demand. KIBBLEWHITE's titanium construction delivers superior heat resistance and durability compared to stock steel valves, reducing the risk of...09263051- SKU:
- 09263051
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
- HEAD DIAMETER METRIC:
- 33.15 MM
- MATERIAL:
- TITANIUM
- MODEL:
- TENSILITE®
- TULIP ANGLE:
- 30°
- STEM DIAMETER IMPERIAL:
- 0.2353'
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
MSRP: $109.33Now: $98.40Was: $109.33Qty in Cart: 0Quantity:Price:MSRP: $109.33Now: $98.40Was: $109.33Subtotal: -
On Sale
KIBBLEWHITE Intake Valve - Standard - Titanium - 2017-2018 40-41412T
KIBBLEWHITE
MSRP: $92.51Now: $83.26Was: $92.51Titanium intake valves are essential for high-RPM applications where stock valves can't handle sustained heat and stress. Kibblewhite's Tensilite® valves deliver the lightweight strength and thermal stability your engine needs to perform reliably at the...09263052- SKU:
- 09263052
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 20°
- UNITS:
- EACH
- MATERIAL:
- TITANIUM
- MODEL:
- TENSILITE®
- HEAD DIAMETER METRIC:
- 31.00 MM
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER IMPERIAL:
- 0.1764'
MSRP: $92.51Now: $83.26Was: $92.51 -
On Sale
KIBBLEWHITE Exhaust Valve - Standard - Titanium - 2017-2018 40-41416T
KIBBLEWHITE
MSRP: $92.51Now: $83.26Was: $92.51Exhaust valves endure extreme thermal cycling and mechanical stress—factory originals often become a reliability weak point in high-revving or forced induction applications. KIBBLEWHITE's titanium Tensilite® valves deliver superior durability and thermal...09263053- SKU:
- 09263053
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- HEAD DIAMETER METRIC:
- 25.00 MM
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER IMPERIAL:
- 0.1759'
- UNITS:
- EACH
- MATERIAL:
- TITANIUM
- TULIP ANGLE:
- 25°
- APPLICATION:
- EXHAUST
- MODEL:
- TENSILITE®
MSRP: $92.51Now: $83.26Was: $92.51 -
On Sale
KIBBLEWHITE Spring Kit 30-32800
KIBBLEWHITE
MSRP: $207.83Now: $187.05Was: $207.83If you're running a boosted engine or pairing your build with a high-performance cam, stock valve springs will fail you under sustained high-RPM loads. The Kibblewhite 30-32800 Spring Kit delivers the valve control and durability you need to support...09263087- SKU:
- 09263087
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- SPRING LIFT IMPERIAL:
- INTAKE 0.440', EXHAUST 0.405'
- SPRING OPEN PRESSURE:
- INTAKE 162 LB, EXHAUST 220 LB
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING KIT
- TYPE:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- SPRING LIFT:
- INTAKE 0,440' , EXHAUST 0,405'
- APPLICATION:
- INTAKE
- MATERIAL:
- TITANIUM
- SPRING SEAT PRESSURE:
- INTAKE 50 LB, EXHAUST 90 LB
MSRP: $207.83Now: $187.05Was: $207.83 -
On Sale
KIBBLEWHITE Intake Valve 30-32812H
KIBBLEWHITE
MSRP: $37.55Now: $33.80Was: $37.55Valve integrity directly impacts engine reliability and performance under extreme conditions. The Kibblewhite White Diamond™ intake valve delivers superior heat resistance and durability through precision engineering and premium materials, ensuring...09263088- SKU:
- 09263088
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MODEL:
- WHITE DIAMOND™
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER IMPERIAL:
- 0.1960'
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 38.00 MM
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 3.080'
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- SIZE METRIC:
- STANDARD
- TULIP ANGLE:
- 20°
MSRP: $37.55Now: $33.80Was: $37.55 -
On Sale
KIBBLEWHITE Exhaust Valve - Standard - CRF450R - 2017-2019 30-32816K
KIBBLEWHITE
MSRP: $47.83Now: $43.05Was: $47.83High-revving engines demand valves that can handle extreme temperatures and constant stress without degradation. The KIBBLEWHITE Exhaust Valve delivers the durability and precision machining required for reliable performance in your CRF450R, whether...09263089- SKU:
- 09263089
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- OFF-ROAD
- HEAD DIAMETER METRIC:
- 31.00 MM
- STEM DIAMETER IMPERIAL:
- 0.1955'
- TULIP ANGLE:
- 23°
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
- MATERIAL:
- TITANIUM
- MODEL:
- TENSILITE®
- UNITS:
- EACH
MSRP: $47.83Now: $43.05Was: $47.83 -
On Sale
KIBBLEWHITE Intake Valve Guide 30-32820
KIBBLEWHITE
MSRP: $34.40Now: $30.96Was: $34.40If you're rebuilding a high-performance engine or restoring a classic with modern reliability in mind, valve guides are the unsung foundation of cylinder head integrity. The KIBBLEWHITE 30-32820 is precision-machined from C630 material to handle today's...09263090- SKU:
- 09263090
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- INTAKE
- COLOR/FINISH:
- BRONZE
- UNITS:
- EACH
- BASE COLOR:
- BROWN
- INSIDE DIAMETER IMPERIAL:
- 0.1960'
- MATERIAL:
- C630 BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.4360'
- PRODUCT NAME:
- VALVE GUIDE
- SIZE IMPERIAL:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
MSRP: $34.40Now: $30.96Was: $34.40 -
On Sale
KIBBLEWHITE Exhaust Valve Guide 30-32830
KIBBLEWHITE
MSRP: $34.40Now: $30.96Was: $34.40If you're rebuilding a high-revving engine or restoring a classic with modern reliability demands, valve guides that can handle both no-lead fuel and aggressive valve-stem materials are non-negotiable. The KIBBLEWHITE 30-32830 exhaust valve guide...09263091- SKU:
- 09263091
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- COLOR/FINISH:
- BRONZE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BASE COLOR:
- BROWN
- MATERIAL:
- C630 BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.4360'
- PRODUCT NAME:
- VALVE GUIDE
- SIZE IMPERIAL:
- STANDARD
- INSIDE DIAMETER IMPERIAL:
- 0.1955'
- APPLICATION:
- EXHAUST
MSRP: $34.40Now: $30.96Was: $34.40 -
On Sale
KIBBLEWHITE Spring Kit 40-41400
KIBBLEWHITE
MSRP: $220.26Now: $198.23Was: $220.26If you're running a high-lift camshaft or forced induction setup, your stock valve springs aren't engineered to handle the sustained pressures at elevated RPMs. The KIBBLEWHITE Spring Kit 40-41400 delivers the valvetrain control and reliability you need...09263092- SKU:
- 09263092
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- SPRING LIFT:
- 0,415'
- SPRING LIFT IMPERIAL:
- 0.415'
- SPRING OPEN PRESSURE:
- INTAKE 181 LB, EXHAUST 155 LB
- TYPE:
- VALVE
- MATERIAL:
- TITANIUM
- PRODUCT NAME:
- SPRING KIT
- SPRING SEAT PRESSURE:
- INTAKE 65 LB, EXHAUST 49 LB
MSRP: $220.26Now: $198.23Was: $220.26 -
On Sale
KIBBLEWHITE Spring Kit - Intake Only 96-96540
KIBBLEWHITE
MSRP: $198.71Now: $178.84Was: $198.71If you're running high-RPM applications or pushing your engine beyond stock parameters, your intake valvetrain is working harder than OEM engineers intended. The KIBBLEWHITE Spring Kit replaces stock titanium components with purpose-engineered stainless...09263093- SKU:
- 09263093
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- SPRING OPEN PRESSURE:
- 205 LB
- APPLICATION:
- INTAKE
- SPRING LIFT:
- 0,435'
- SPRING SEAT PRESSURE:
- 80 IB
- TYPE:
- CONVERSION
- MATERIAL:
- STAINLESS STEEL
- SPRING LIFT IMPERIAL:
- 0.435'
MSRP: $198.71Now: $178.84Was: $198.71 -
On Sale
KIBBLEWHITE Intake Valve Guide 40-40520
KIBBLEWHITE
MSRP: $30.72Now: $27.65Was: $30.72If you're running a high-revving engine or building a performance head, valve guide wear will kill your flow efficiency and compromise ring sealing. The KIBBLEWHITE Intake Valve Guide 40-40520 delivers precision-machined durability with a tapered nose...09263096- SKU:
- 09263096
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- INTAKE
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE GUIDE
- COLOR/FINISH:
- BRONZE
- INSIDE DIAMETER IMPERIAL:
- 0.1765'
- SIZE IMPERIAL:
- STANDARD
- BASE COLOR:
- BROWN
- MATERIAL:
- C630 BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.3765'
- RIDING STYLE:
- OFF-ROAD
MSRP: $30.72Now: $27.65Was: $30.72 -
On Sale
KIBBLEWHITE Exhaust Valve Guide 80-80120
KIBBLEWHITE
MSRP: $22.29Now: $20.06Was: $22.29If you're rebuilding a high-performance engine or restoring a classic, valve guide wear directly impacts combustion efficiency, oil consumption, and overall reliability. The KIBBLEWHITE 80-80120 exhaust valve guide is precision-machined from C630...09263098- SKU:
- 09263098
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- BASE COLOR:
- BROWN
- MATERIAL:
- C630 BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.3957'
- PRODUCT NAME:
- VALVE GUIDE
- COLOR/FINISH:
- BRONZE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- INSIDE DIAMETER IMPERIAL:
- 0.1955'
- APPLICATION:
- EXHAUST
- SIZE IMPERIAL:
- STANDARD
MSRP: $22.29Now: $20.06Was: $22.29Qty in Cart: 0Quantity:Price:MSRP: $22.29Now: $20.06Was: $22.29Subtotal: -
On Sale
KIBBLEWHITE Valve Guide Seal - Intake/Exhaust 71041-4
KIBBLEWHITE
MSRP: $13.96Now: $12.56Was: $13.96Valve guide seals are critical to preventing oil from seeping into your combustion chamber—a problem that causes smoking, increased blow-by, and accelerated carbon buildup. KIBBLEWHITE's Viton seals deliver reliable, long-term performance without the...09263099- SKU:
- 09263099
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MATERIAL:
- VITON
- PRODUCT NAME:
- SEAL
- TYPE:
- VALVE GUIDE
- UNITS:
- 4 PACK
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER IMPERIAL:
- 0.320'
- APPLICATION:
- EXHAUST
- OUTSIDE DIAMETER IMPERIAL:
- 0.435'
MSRP: $13.96Now: $12.56Was: $13.96Qty in Cart: 0Quantity:Price:MSRP: $13.96Now: $12.56Was: $13.96Subtotal: -
On Sale
KIBBLEWHITE Exhaust Valve 30-30225
KIBBLEWHITE
MSRP: $31.01Now: $27.91Was: $31.01Exhaust valves are critical to your engine's reliability and peak performance—they're under extreme thermal and mechanical stress every combustion cycle. The KIBBLEWHITE Black Diamond™ 30-30225 delivers the durability and precision needed to maintain...09263055- SKU:
- 09263055
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- LENGTH IMPERIAL:
- 3.310'
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- BLACK DIAMOND™
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.1957'
- TULIP ANGLE:
- 20°
- HEAD DIAMETER METRIC:
- 30.00 MM
- UNITS:
- EACH
MSRP: $31.01Now: $27.91Was: $31.01 -
On Sale
KIBBLEWHITE Intake Valve - Standard - CRF450R 30-32812T
KIBBLEWHITE
MSRP: $92.51Now: $83.26Was: $92.51Factory intake valves are prone to wear under sustained high-RPM operation, leading to decreased sealing efficiency and lost power. The Kibblewhite Tensilite® intake valve delivers precision-forged titanium construction with a specialized PVD coating...09263056- SKU:
- 09263056
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER IMPERIAL:
- 0.1960'
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 38.00 MM
- MATERIAL:
- TITANIUM
- MODEL:
- TENSILITE®
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 20°
MSRP: $92.51Now: $83.26Was: $92.51 -
On Sale
KIBBLEWHITE Keeper Set 80-81330
KIBBLEWHITE
MSRP: $37.84Now: $34.06Was: $37.84Valve spring keepers are a critical component that directly impacts engine reliability and performance—especially under high RPM conditions where valve float can cause catastrophic failure. The KIBBLEWHITE Keeper Set 80-81330 uses high tensile strength...09263114- SKU:
- 09263114
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- KEEPER SET
- UNITS:
- SET
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- STEM DIAMETER IMPERIAL:
- 0.177'
- APPLICATION:
- EXHAUST
- LENGTH IMPERIAL:
- 0.221'
MSRP: $37.84Now: $34.06Was: $37.84Qty in Cart: 0Quantity:Price:MSRP: $37.84Now: $34.06Was: $37.84Subtotal:
