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 Shim Kit - 10.00 mm MSEHCSHIM31
MOOSE RACING
$109.95Precision valve train maintenance demands reliable, properly-sized shims that you can trust in critical adjustments. The MOOSE RACING Valve Shim Kit eliminates guesswork with laser-etched sizing and forged steel construction that withstands repeated...09261829- SKU:
- 09261829
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- KIT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SHIM KIT
- RIDING STYLE:
- SNOW
$109.95Qty in Cart: 0Quantity:Price:$109.95Subtotal: -
MOOSE RACING Valve Shim - 9.48 x 1.95 - 5 pack MSE5PK948195
MOOSE RACING
$9.95Maintaining proper valve clearance is critical to engine performance and longevity—even a few thousandths of an inch off tolerance can cause valve float, poor sealing, and accelerated wear. These MOOSE RACING valve shims give you the precision adjustment...09261943- SKU:
- 09261943
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
- MATERIAL:
- ROLLED
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.95 MM
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- OFF-ROAD
$9.95 -
MOOSE RACING Valve Shim - 8.90 x 2.28 - 5 pack MSE5PK890228
MOOSE RACING
$10.95Maintaining proper valve clearance is critical to engine performance, reliability, and longevity—and having the right shims on hand means you're never caught without the correct spec during a rebuild or adjustment. MOOSE Racing valve shims are forged...09261919- SKU:
- 09261919
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 2.28 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
MOOSE RACING Valve Shim - 8.90 x 2.48 - 5 pack MSE5PK890248
MOOSE RACING
$10.95Valve shim maintenance separates meticulous engine builders from the rest. These forged 4140 steel shims enable precise valve clearance adjustments without guesswork, ensuring optimal valve train geometry and preventing costly contact issues. A complete...09261924- SKU:
- 09261924
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- VALVE SHIM THICKNESS METRIC:
- 2.48 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
MOOSE RACING Valve Shim - 7.48 x 2.55 - 5 pack MSE5PK748255
MOOSE RACING
$9.95Proper valve clearance is critical to engine performance and longevity—even small deviations can cause valve float, reduced compression, and increased wear on your valve train. These MOOSE RACING forged steel shims give you precise control over your...09261885- SKU:
- 09261885
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 2.55 MM
$9.95Qty in Cart: 0Quantity:Price:$9.95Subtotal: -
MOOSE RACING Intake Valve Kit M30-32440
MOOSE RACING
$115.95OEM intake valves wear faster than they should, robbing you of horsepower and reliability during critical race moments. The MOOSE RACING Stainless Steel Intake Valve Kit replaces those weak points with Black Diamond stainless steel valves engineered to...09262932- SKU:
- 09262932
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PRODUCT NAME:
- VALVE KIT
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$115.95Qty in Cart: 0Quantity:Price:$115.95Subtotal: -
MOOSE RACING Valve Shim - 9.48 x 3.25 - 5 pack MSE5PK948325
MOOSE RACING
$9.95Proper valve clearance is critical to engine performance and longevity, and maintaining it requires reliable, accurately sized shims. The MOOSE RACING Valve Shim 5-pack eliminates guesswork during valve train adjustments with precision-forged shims that...09261969- SKU:
- 09261969
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 3.25 MM
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$9.95Qty in Cart: 0Quantity:Price:$9.95Subtotal: -
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: -
KIBBLEWHITE Valve Guide 40-40120
KIBBLEWHITE
$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
$17.70 -
KIBBLEWHITE Exhaust Valve 80-80217H
KIBBLEWHITE
$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'
$37.55 -
KIBBLEWHITE Intake Valve - Honda 30-30220T
KIBBLEWHITE
$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
$92.51Qty in Cart: 0Quantity:Price:$92.51Subtotal: -
KIBBLEWHITE Intake Valve - Honda 30-31262T
KIBBLEWHITE
$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'
$109.33Qty in Cart: 0Quantity:Price:$109.33Subtotal: -
KIBBLEWHITE Intake Valve - Suzuki 60-60512T
KIBBLEWHITE
$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'
$109.33Qty in Cart: 0Quantity:Price:$109.33Subtotal: -
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:
