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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MOOSE RACING Valve Seal Kit M80-82380
MOOSE RACING
$15.95Valve seal degradation is one of the most common causes of oil burning and compression loss in high-mileage engines. The MOOSE RACING Valve Seal Kit M80-82380 replaces worn OEM seals with precision-engineered components that restore proper combustion...09263200- SKU:
- 09263200
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MATERIAL:
- VITON
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- SEAL KIT
- APPLICATION:
- EXHAUST
- BASE COLOR:
- RED
- TYPE:
- VALVE STEM
$15.95 -
MOOSE RACING Valve Seal Kit M30-32795
MOOSE RACING
$15.95Valve seal degradation causes oil bypass, compression loss, and increased emissions—problems that compound quickly under racing conditions or high-mileage operation. The MOOSE RACING M30-32795 replaces worn OEM seals with precision-engineered components...09263201- SKU:
- 09263201
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MATERIAL:
- VITON
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- BASE COLOR:
- RED
- TYPE:
- VALVE STEM
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- SEAL KIT
$15.95Qty in Cart: 0Quantity:Price:$15.95Subtotal: -
MOOSE RACING Valve Shim - 7.48 x 1.20 - 5 pack MSE5PK748120
MOOSE RACING
$9.95Precision valve train maintenance demands accuracy at every step—these forged steel shims eliminate guesswork during adjustment and setup. Whether you're dialing in a street build or maintaining a race engine, having laser-etched identification on each...09261858- SKU:
- 09261858
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 1.20 MM
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
$9.95Qty in Cart: 0Quantity:Price:$9.95Subtotal: -
On Sale
KIBBLEWHITE Valve Guide 40-40120
KIBBLEWHITE
MSRP: $17.70Now: $15.93Was: $17.70Valve guide wear compromises cylinder head sealing and increases oil consumption—a problem that compounds with high-performance engine builds and extended track sessions. The KIBBLEWHITE 40-40120 valve guide is engineered with Ampco-45 compound...09260168- SKU:
- 09260168
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- INSIDE DIAMETER IMPERIAL:
- 0.1760'
- SIZE IMPERIAL:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- C630 BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.3765'
- PRODUCT NAME:
- VALVE GUIDE
MSRP: $17.70Now: $15.93Was: $17.70 -
On Sale
KIBBLEWHITE Exhaust Valve 80-80217H
KIBBLEWHITE
MSRP: $37.55Now: $33.80Was: $37.55High-revving engines demand valve materials that can withstand extreme temperatures, pressure cycling, and combustion forces without degradation. KIBBLEWHITE's White Diamond™ exhaust valves are precision-engineered from premium forgings and finished with...09260110- SKU:
- 09260110
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD DIAMETER METRIC:
- 28.00 MM
- LENGTH IMPERIAL:
- 2.955'
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- SIZE METRIC:
- STANDARD
- TULIP ANGLE:
- 20°
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MODEL:
- WHITE DIAMOND™
- STEM DIAMETER IMPERIAL:
- 0.1956'
MSRP: $37.55Now: $33.80Was: $37.55 -
On Sale
KIBBLEWHITE Intake Valve - Honda 30-30220T
KIBBLEWHITE
MSRP: $92.51Now: $83.26Was: $92.51Kibblewhite's Tensilite® intake valves are engineered for engines that demand reliability under extreme conditions. Built from aerospace-grade titanium and finished with a CrN PVD coating, these valves deliver superior wear resistance and thermal...09262743- SKU:
- 09262743
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- TULIP ANGLE:
- 20°
- UNITS:
- EACH
- MODEL:
- TENSILITE®
- STEM DIAMETER IMPERIAL:
- 0.2158'
- HEAD DIAMETER METRIC:
- 36.00 MM
- PRODUCT NAME:
- VALVE
- MATERIAL:
- TITANIUM
MSRP: $92.51Now: $83.26Was: $92.51Qty in Cart: 0Quantity:Price:MSRP: $92.51Now: $83.26Was: $92.51Subtotal: -
On Sale
KIBBLEWHITE Intake Valve - Honda 30-31262T
KIBBLEWHITE
MSRP: $109.33Now: $98.40Was: $109.33Titanium intake valves are essential for high-RPM applications where stock valves can't handle sustained heat and load cycling. The KIBBLEWHITE Tensilite® valve delivers superior strength-to-weight ratio and thermal stability, allowing you to push higher...09262744- SKU:
- 09262744
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- TULIP ANGLE:
- 20°
- UNITS:
- EACH
- MATERIAL:
- TITANIUM
- MODEL:
- TENSILITE®
- HEAD DIAMETER METRIC:
- 36.00 MM
- STEM DIAMETER IMPERIAL:
- 0.1960'
MSRP: $109.33Now: $98.40Was: $109.33Qty in Cart: 0Quantity:Price:MSRP: $109.33Now: $98.40Was: $109.33Subtotal: -
On Sale
KIBBLEWHITE Intake Valve - Suzuki 60-60512T
KIBBLEWHITE
MSRP: $109.33Now: $98.40Was: $109.33Intake valve performance directly impacts cylinder filling efficiency and combustion consistency—two factors that separate competitive engines from mediocre ones. The Kibblewhite Tensilite® valve delivers the material science and precision manufacturing...09262758- SKU:
- 09262758
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- TITANIUM
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- MODEL:
- TENSILITE®
- TULIP ANGLE:
- 15°
- HEAD DIAMETER METRIC:
- 31.00 MM
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER IMPERIAL:
- 0.1765'
MSRP: $109.33Now: $98.40Was: $109.33 -
DEL WEST Exhaust Valve DW-YZ250F-EV14
DEL WEST
$155.95When you're pushing a YZ250F to its limits in competition, valve reliability directly impacts your race results. DEL WEST exhaust valves are engineered to withstand the extreme temperatures and pressure cycles of off-road racing, delivering consistent...09262721- SKU:
- 09262721
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- TITANIUM
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
$155.95Qty in Cart: 0Quantity:Price:$155.95Subtotal: -
DEL WEST Valve Spring Retainer DW-SZ-RX01-S
DEL WEST
$48.95Del West valve spring retainers are engineered for maximum reliability in the most demanding racing environments—from NASCAR to Formula One and professional motocross. When you're pushing your engine to its limits, your valvetrain components must deliver...09262474- SKU:
- 09262474
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VALVE SPRING
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- RETAINER
$48.95Qty in Cart: 0Quantity:Price:$48.95Subtotal: -
DEL WEST Valve Spring Retainer DW-H-RX03-S
DEL WEST
$51.95Del West valve spring retainers are engineered for maximum reliability in extreme racing environments where factory components fail. Built with the same precision that powers Formula One and NASCAR engines, this retainer delivers the consistent valve...09262475- SKU:
- 09262475
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE SPRING
- UNITS:
- EACH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- RETAINER
- APPLICATION:
- INTAKE
$51.95 -
DEL WEST Valve Spring Retainer DW-H-RX04-S
DEL WEST
$48.95Del West valve spring retainers are engineered for the extreme demands of professional motorsports, from NASCAR circuits to Formula One paddocks. If you're building a high-RPM engine that needs to survive sustained abuse, this component delivers the...09262476- SKU:
- 09262476
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE SPRING
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- STEEL
- PRODUCT NAME:
- RETAINER
$48.95Qty in Cart: 0Quantity:Price:$48.95Subtotal: -
DEL WEST Exhaust Valve DW-CRF450R-EV02
DEL WEST
$155.95Off-road competition demands an exhaust valve that won't fail when reliability matters most. The DEL WEST DW-CRF450R-EV02 is engineered to withstand the extreme thermal and mechanical stresses of high-RPM racing, backed by a proven track record in...09261046- SKU:
- 09261046
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- EXHAUST
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- TITANIUM
$155.95Qty in Cart: 0Quantity:Price:$155.95Subtotal: -
On Sale
KIBBLEWHITE Exhaust Valve - Suzuki 60-60718T
KIBBLEWHITE
MSRP: $109.33Now: $98.40Was: $109.33Exhaust valves are a critical wear item in high-revving engines, and OEM replacements often can't keep pace with sustained performance demands. The KIBBLEWHITE Tensilite® exhaust valve combines aerospace-grade titanium with a precision PVD coating to...09262761- SKU:
- 09262761
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- TITANIUM
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.2150'
- TULIP ANGLE:
- 20°
- MODEL:
- TENSILITE®
- UNITS:
- EACH
- HEAD DIAMETER METRIC:
- 31.00 MM
- RIDING STYLE:
- OFF-ROAD
MSRP: $109.33Now: $98.40Was: $109.33 -
On Sale
KIBBLEWHITE Exhaust Valve - Yamaha 80-80766T
KIBBLEWHITE
MSRP: $109.33Now: $98.40Was: $109.33Exhaust valves are critical to cylinder head integrity and engine performance—they're subject to extreme thermal cycling, combustion pressures, and chemical corrosion that standard steel simply can't handle. KIBBLEWHITE's Tensilite® valves are forged...09262769- SKU:
- 09262769
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- EXHAUST
- STEM DIAMETER IMPERIAL:
- 0.2155'
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- TULIP ANGLE:
- 20°
- HEAD DIAMETER METRIC:
- 30.00 MM
- MATERIAL:
- TITANIUM
- MODEL:
- TENSILITE®
- UNITS:
- EACH
MSRP: $109.33Now: $98.40Was: $109.33Qty in Cart: 0Quantity:Price:MSRP: $109.33Now: $98.40Was: $109.33Subtotal: -
On Sale
KIBBLEWHITE Valve Guide Seal - Intake/Exhaust 71040-4
KIBBLEWHITE
MSRP: $13.96Now: $12.56Was: $13.96Valve guide seals are critical to preventing oil from seeping into your combustion chambers—a common source of blue smoke, carbon buildup, and lost performance. The KIBBLEWHITE 71040-4 uses Viton construction to withstand extreme heat cycles and...09263100- SKU:
- 09263100
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SEAL
- STEM DIAMETER IMPERIAL:
- 0.333'
- OUTSIDE DIAMETER IMPERIAL:
- 0.4550'
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- TYPE:
- VALVE GUIDE
- MATERIAL:
- VITON
- UNITS:
- 4 PACK
MSRP: $13.96Now: $12.56Was: $13.96 -
XCELDYNE Valve Locks XLOM55750
XCELDYNE
$38.18Valve locks are critical to high-RPM engine stability—without secure keepers, you risk catastrophic valve failure and potential engine damage. The XCELDYNE XLOM55750 addresses this with purpose-engineered design and precision manufacturing that keeps...09260524- SKU:
- 09260524
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- LOCK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VALVE
- APPLICATION:
- INTAKE
- RIDING STYLE:
- ATV
- UNITS:
- SET OF 4
$38.18Qty in Cart: 0Quantity:Price:$38.18Subtotal: -
XCELDYNE Valve Locks XLOM55751
XCELDYNE
$38.18Valve locks are critical to engine reliability at high RPM, and failure means catastrophic internal damage. XCELDYNE's purpose-built design keeps your valvetrain secure where inferior locks fail, giving you the confidence to push your engine to its...09260525- SKU:
- 09260525
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- EXHAUST
- UNITS:
- SET OF 4
- MATERIAL:
- STEEL
- PRODUCT NAME:
- LOCK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VALVE
$38.18Qty in Cart: 0Quantity:Price:$38.18Subtotal: -
On Sale
KIBBLEWHITE Intake Valve Kit 80-80970
KIBBLEWHITE
MSRP: $261.51Now: $235.36Was: $261.51Valve train durability is the foundation of reliable engine performance, and OEM titanium intake valves can only take you so far before wear compromises your build. The KIBBLEWHITE Black Diamond intake valve kit replaces your factory components with...09262678- SKU:
- 09262678
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- SPRING OPEN PRESSURE:
- 151 LB
- TYPE:
- CONVERSION
- MATERIAL:
- TITANIUM
- SPRING LIFT:
- 0,425'
- SPRING SEAT PRESSURE:
- 48 LB
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- SPRING LIFT IMPERIAL:
- 0.425'
MSRP: $261.51Now: $235.36Was: $261.51Qty in Cart: 0Quantity:Price:MSRP: $261.51Now: $235.36Was: $261.51Subtotal: -
On Sale
KIBBLEWHITE Valve Spring Kit 96-96400
KIBBLEWHITE
MSRP: $220.26Now: $198.23Was: $220.26Valve spring performance is critical to engine reliability and RPM capability—inadequate springs lead to valve float, loss of power, and catastrophic engine damage. The KIBBLEWHITE Valve Spring Kit 96-96400 delivers the consistent, precise spring rates...09262704- SKU:
- 09262704
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- SPRING KIT
- SPRING LIFT IMPERIAL:
- 0.450'
- TYPE:
- VALVE
- MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- SPRING OPEN PRESSURE:
- 165 LB
- UNITS:
- KIT
MSRP: $220.26Now: $198.23Was: $220.26Qty in Cart: 0Quantity:Price:MSRP: $220.26Now: $198.23Was: $220.26Subtotal:
