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
-
MOOSE RACING Valve Shim - 9.48 x 2.55 - 5 pack MSE5PK948255
MOOSE RACING
$10.95Maintaining precise valve clearances is critical to engine performance, longevity, and reliability—and having a complete shim kit on hand eliminates guesswork during valve train service. MOOSE RACING...09261955- SKU:
- 09261955
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.55 MM
$10.95 -
MOOSE RACING Valve Shim - 9.48 x 2.60 - 5 pack MSE5PK948260
MOOSE RACING
$10.95Precision valve train maintenance demands reliable, accurate shims that won't let you down mid-rebuild. These MOOSE RACING valve shims are forged from 4140 cold rolled steel—not sintered—delivering...09261956- SKU:
- 09261956
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.60 MM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$10.95 -
MOOSE RACING Valve Shim - 9.48 x 2.65 - 5 pack MSE5PK948265
MOOSE RACING
$10.95Maintaining proper valve clearance is critical to engine performance and longevity—and having precision shims on hand ensures you're never caught without the right size during a rebuild or adjustment...09261957- SKU:
- 09261957
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- ROLLED
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.65 MM
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
$10.95 -
MOOSE RACING Valve Shim - 8.90 x 2.24 - 5 pack MSE5PK890224
MOOSE RACING
$10.95Maintaining precise valve clearances is critical to engine reliability and performance, and having the right shims on hand eliminates costly downtime during valve train service. MOOSE Racing valve...09261918- SKU:
- 09261918
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- MATERIAL:
- ROLLED
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- RIDING STYLE:
- ATV
- VALVE SHIM THICKNESS METRIC:
- 2.24 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$10.95 -
MOOSE RACING Valve Shim - 8.90 x 2.32 - 5 pack MSE5PK890232
MOOSE RACING
$10.95Valve shim maintenance is critical to valve train precision, and having quality refill shims on hand eliminates downtime during adjustments. These MOOSE RACING shims are forged from 4140 cold-rolled...09261920- SKU:
- 09261920
- 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:
- UTV
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 2.32 MM
$10.95 -
MOOSE RACING Valve Shim - 8.90 x 2.36 - 5 pack MSE5PK890236
MOOSE RACING
$10.95Precision valve train maintenance demands the right shims on hand—and these MOOSE RACING forged steel shims eliminate guesswork during critical adjustments. Whether you're dialing in clearances on a...09261921- SKU:
- 09261921
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 2.36 MM
- MATERIAL:
- ROLLED
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
$10.95 -
MOOSE RACING Valve Shim - 8.90 x 2.52 - 5 pack MSE5PK890252
MOOSE RACING
$10.95Maintaining precise valve clearances is critical to engine performance and longevity—even a few thousandths of an inch off can cause loss of power, increased wear, or catastrophic failure. The MOOSE...09261925- SKU:
- 09261925
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- ROLLED
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 2.52 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
- RIDING STYLE:
- UTV
$10.95 -
MOOSE RACING Valve Shim - 8.90 x 2.56 - 5 pack MSE5PK890256
MOOSE RACING
$10.95Maintaining precise valve clearances is critical to engine performance and longevity, and having quality shims on hand eliminates guesswork during valve train service. These MOOSE RACING valve shims...09261926- SKU:
- 09261926
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 2.56 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$10.95 -
MOOSE RACING Valve Seal Kit M96-96470
MOOSE RACING
$15.95Valve seal degradation is one of the most common causes of oil consumption and compression loss in high-mileage engines. The MOOSE RACING Valve Seal Kit M96-96470 replaces worn OEM seals with...09262840- SKU:
- 09262840
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- SEAL KIT
- TYPE:
- VALVE STEM
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- BASE COLOR:
- RED
- MATERIAL:
- VITON
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$15.95 -
MOOSE RACING Intake Valve Kit M30-31210
MOOSE RACING
$196.95OEM titanium intake valves face accelerated wear under high-stress racing conditions, limiting your engine's reliability and rebuild intervals. The MOOSE RACING Intake Valve Kit M30-31210 replaces...09262428- SKU:
- 09262428
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$196.95 -
MOOSE RACING Intake Valve Kit M30-31240
MOOSE RACING
$196.95If you're running OEM titanium intake valves, you're leaving performance and longevity on the table. The MOOSE RACING M30-31240 Intake Valve Kit replaces them with Black Diamond stainless steel...09262430- SKU:
- 09262430
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- KIT
$196.95Qty in Cart: 0Quantity:Price:$196.95Subtotal: -
MOOSE RACING Valve Shim - 9.48 x 3.50 - 5 pack MSE5PK948350
MOOSE RACING
$9.95Precision valve shimming is critical for maintaining tight valve clearances and preventing costly engine damage. This 5-pack of MOOSE RACING valve shims eliminates the guesswork during valve train...09261974- SKU:
- 09261974
- 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:
- UTV
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 3.50 MM
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- OFF-ROAD
$9.95Qty in Cart: 0Quantity:Price:$9.95Subtotal: -
MOOSE RACING Valve Seal Kit M30-31410
MOOSE RACING
$15.95Valve seal degradation causes oil consumption, compression loss, and increased emissions—issues that compound quickly under racing or high-performance driving conditions. The MOOSE RACING Valve Seal...09262817- SKU:
- 09262817
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- BASE COLOR:
- RED
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- SEAL KIT
- TYPE:
- VALVE STEM
- MATERIAL:
- VITON
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$15.95Qty in Cart: 0Quantity:Price:$15.95Subtotal: -
MOOSE RACING Valve Seal Kit M30-31570
MOOSE RACING
$15.95Valve seals are a critical wear item that directly impacts combustion chamber integrity and oil consumption. Factory seals often degrade under sustained high RPM operation, leading to blow-by and...09262820- SKU:
- 09262820
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- COLOR/FINISH:
- RED
- BASE COLOR:
- RED
- MATERIAL:
- VITON
- TYPE:
- VALVE STEM
$15.95 -
MOOSE RACING Valve Seal Kit M60-60340
MOOSE RACING
$15.95Valve seal degradation is one of the most common causes of oil leakage, compression loss, and increased blowby in high-performance engines. The MOOSE RACING Valve Seal Kit M60-60340 replaces worn OEM...09262825- SKU:
- 09262825
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SEAL KIT
- TYPE:
- VALVE STEM
- UNITS:
- KIT
- BASE COLOR:
- RED
- MATERIAL:
- VITON
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- COLOR/FINISH:
- RED
$15.95 -
MOOSE RACING Valve Shim - 8.90 x 2.08 - 5 pack MSE5PK890208
MOOSE RACING
$11.95Maintaining precise valve clearances is non-negotiable for engine longevity and performance—and having a complete shim kit on hand eliminates guesswork during valve adjustments. These forged 4140...09261914- SKU:
- 09261914
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 2.08 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- MATERIAL:
- ROLLED
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
$11.95 -
MOOSE RACING Valve Shim - 7.48 x 2.60 - 5 pack MSE5PK748260
MOOSE RACING
$10.95Precise valve shim selection is critical for maintaining proper valve train clearance and engine performance across multiple service intervals. These forged 4140 steel shims eliminate guesswork with...09261886- SKU:
- 09261886
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.60 MM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$10.95 -
MOOSE RACING Valve Shim - 7.48 x 2.65 - 5 pack MSE5PK748265
MOOSE RACING
$10.95Proper valve shim selection is critical for maintaining precise valve clearance and preventing costly engine damage from improper adjustment. These MOOSE RACING shims eliminate guesswork during valve...09261887- SKU:
- 09261887
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- ROLLED
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.65 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
$10.95 -
MOOSE RACING Valve Seal Kit M80-80440
MOOSE RACING
$19.95Valve seal degradation is one of the primary culprits behind oil consumption, blow-by, and loss of combustion efficiency—issues that compound quickly under sustained high RPM operation. The MOOSE...09262830- SKU:
- 09262830
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- INTAKE
- BASE COLOR:
- RED
- COLOR/FINISH:
- RED
- MATERIAL:
- VITON
- PRODUCT NAME:
- SEAL KIT
- TYPE:
- VALVE STEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
$19.95 -
MOOSE RACING Intake Valve Kit M80-81100
MOOSE RACING
$196.95Factory titanium intake valves wear out faster than you'd like, especially under high-RPM conditions where thermal stress compounds quickly. The MOOSE RACING Intake Valve Kit replaces them with...09262732- SKU:
- 09262732
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- VALVE KIT
- UNITS:
- KIT
$196.95
