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)...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...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: $22.95 -
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...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...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...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...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: $92.51Qty in Cart: 0Quantity:Price:MSRP: $92.51Now: $83.26Was: $92.51Subtotal: -
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...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: $222.38Now: $187.05Was: $222.38If 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...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: $222.38Now: $187.05Was: $222.38 -
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...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: $54.10Now: $43.05Was: $54.10High-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...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: $54.10Now: $43.05Was: $54.10 -
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...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...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...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: $212.63Now: $178.84Was: $212.63If 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...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: $212.63Now: $178.84Was: $212.63 -
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...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...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: $22.29 -
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...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...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...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...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:
