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
VESRAH Exhaust Valve GG-1050-EX
VESRAH
MSRP: $41.83Now: $39.74Was: $41.83A worn or damaged exhaust valve compromises engine efficiency, increases emissions, and can lead to costly internal damage if ignored. The VESRAH Exhaust Valve GG-1050-EX delivers OEM-equivalent...09260315- SKU:
- 09260315
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD DIAMETER:
- 20,50 MM
- UNITS:
- EACH
- HEAD DIAMETER METRIC:
- 20.50 MM
- LENGTH METRIC:
- 78.54 MM
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER METRIC:
- 5.50 MM
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
MSRP: $41.83Now: $39.74Was: $41.83 -
On Sale
VESRAH Intake Valve GG-1050-IN
VESRAH
MSRP: $31.17Now: $29.61Was: $31.17Intake valves are critical to your engine's breathing efficiency and combustion reliability. The VESRAH GG-1050-IN delivers OEM-equivalent precision at a competitive price point, making it an ideal...09260314- SKU:
- 09260314
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- LENGTH METRIC:
- 78.89 MM
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER METRIC:
- 5.50 MM
- PRODUCT NAME:
- VALVE
- APPLICATION:
- INTAKE
- HEAD DIAMETER:
- 34,00 MM
- HEAD DIAMETER METRIC:
- 34.00 MM
- UNITS:
- EACH
MSRP: $31.17Now: $29.61Was: $31.17Qty in Cart: 0Quantity:Price:MSRP: $31.17Now: $29.61Was: $31.17Subtotal: -
On Sale
VESRAH Intake Valve GG-1043-IN
VESRAH
MSRP: $34.33Now: $32.61Was: $34.33Valve degradation directly impacts combustion efficiency, throttle response, and overall engine longevity. The VESRAH Intake Valve GG-1043-IN delivers OEM-equivalent precision without the premium...09260054- SKU:
- 09260054
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- HEAD DIAMETER METRIC:
- 36.00 MM
- HEAD DIAMETER:
- 36,00 MM
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER METRIC:
- 6.60 MM
- LENGTH METRIC:
- 105.70 MM
MSRP: $34.33Now: $32.61Was: $34.33 -
On Sale
VESRAH Exhaust Valve GG-1043-EX
VESRAH
MSRP: $54.83Now: $52.09Was: $54.83Exhaust valves are critical to your engine's breathing efficiency and longevity. Over time, OEM valves can warp, burn, or lose sealing integrity, causing power loss and increased emissions. The...09260055- SKU:
- 09260055
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- HEAD DIAMETER METRIC:
- 31.00 MM
- LENGTH METRIC:
- 104.20 MM
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER METRIC:
- 6.60 MM
- APPLICATION:
- EXHAUST
- HEAD DIAMETER:
- 31,00 MM
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
MSRP: $54.83Now: $52.09Was: $54.83 -
MOOSE RACING Valve Shim - 7.48 x 3.10 - 5 pack MSE5PK748310
MOOSE RACING
$9.95Precision valve train maintenance demands accurate, reliable shims that won't let you down mid-season. MOOSE Racing valve shims are forged from 4140 cold rolled steel—not sintered—giving you the...09261896- SKU:
- 09261896
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 3.10 MM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
$9.95 -
MOOSE RACING Valve Shim - 7.48 x 3.15 - 5 pack MSE5PK748315
MOOSE RACING
$9.95Valve shim maintenance is critical to maintaining proper valve clearance and preventing costly engine damage from improper adjustment. This complete 5-pack from MOOSE Racing gives you the refill...09261897- SKU:
- 09261897
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 3.15 MM
$9.95 -
MOOSE RACING Valve Shim - 7.48 x 3.20 - 5 pack MSE5PK748320
MOOSE RACING
$9.95Precision valve shim sets are essential for maintaining proper valve clearance and ensuring optimal engine performance across your entire valve train. These MOOSE RACING shims eliminate guesswork...09261898- SKU:
- 09261898
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- VALVE SHIM THICKNESS METRIC:
- 3.20 MM
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
$9.95 -
MOOSE RACING Valve Shim - 7.48 x 3.25 - 5 pack MSE5PK748325
MOOSE RACING
$9.95Maintaining precise valve clearances is essential for engine performance, reliability, and longevity—and having the right shims on hand eliminates guesswork during valve train adjustments. MOOSE...09261899- SKU:
- 09261899
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 3.25 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
$9.95 -
MOOSE RACING Valve Shim - 7.48 x 3.35 - 5 pack MSE5PK748335
MOOSE RACING
$9.95Maintaining precise valve clearances is critical to engine performance and longevity, and having the right shims on hand eliminates downtime during valve train service. MOOSE RACING valve shims are...09261901- SKU:
- 09261901
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 3.35 MM
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$9.95 -
MOOSE RACING Valve Shim - 8.90 x 1.72 - 5 pack MSE5PK890172
MOOSE RACING
$10.95Maintaining precise valve clearances is critical to engine reliability and performance—even a few thousandths of an inch out of spec can cause valve float, burned seats, or catastrophic failure...09261905- SKU:
- 09261905
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 1.72 MM
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
MOOSE RACING Valve Shim - 8.90 x 1.80 - 5 pack MSE5PK890180
MOOSE RACING
$10.95Maintaining precise valve clearances is critical to engine performance and longevity—improper shim selection leads to valve float, reduced power, and potential engine damage. These MOOSE RACING valve...09261907- SKU:
- 09261907
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 1.80 MM
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
$10.95 -
MOOSE RACING Valve Shim - 8.90 x 1.88 - 5 pack MSE5PK890188
MOOSE RACING
$10.95Proper valve clearance is critical to engine performance, longevity, and reliability—and getting it right starts with precision shims. This 5-pack of MOOSE RACING valve shims ensures you have the...09261909- SKU:
- 09261909
- 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
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.88 MM
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
MOOSE RACING Valve Shim - 9.48 x 3.00 - 5 pack MSE5PK948300
MOOSE RACING
$9.95Proper valve shim selection is critical to maintaining correct valve clearances and ensuring consistent performance across your engine's valve train. These forged 4140 steel shims eliminate guesswork...09261964- SKU:
- 09261964
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- 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:
- 3.00 MM
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$9.95 -
MOOSE RACING Valve Shim - 9.48 x 3.05 - 5 pack MSE5PK948305
MOOSE RACING
$9.95Valve shim maintenance is critical to engine longevity, and having the right sizes on hand prevents costly downtime during top-end rebuilds. These Moose Racing shims are forged from 4140 cold rolled...09261965- SKU:
- 09261965
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 3.05 MM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
$9.95 -
MOOSE RACING Valve Shim - 9.48 x 3.10 - 5 pack MSE5PK948310
MOOSE RACING
$9.95Valve shim maintenance is critical to engine longevity and performance, and having the correct sizes on hand eliminates guesswork during valve train service. These MOOSE RACING shims are forged from...09261966- SKU:
- 09261966
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 3.10 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
$9.95 -
MOOSE RACING Valve Shim - 9.48 x 3.40 - 5 pack MSE5PK948340
MOOSE RACING
$9.95Valve shim maintenance demands precision and reliability—guesswork has no place in your valve train. These forged 4140 cold rolled steel shims give you the durability and accuracy needed to dial in...09261972- SKU:
- 09261972
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- VALVE SHIM THICKNESS METRIC:
- 3.40 MM
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- 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
$9.95 -
MOOSE RACING Valve Seal Kit M30-30550
MOOSE RACING
$15.95Valve seal degradation is one of the most common causes of oil consumption and compression loss in high-mileage engines—issues that compound quickly under racing conditions or sustained performance...09262815- SKU:
- 09262815
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- RED
- MATERIAL:
- VITON
- TYPE:
- VALVE STEM
- APPLICATION:
- INTAKE
- BASE COLOR:
- RED
- PRODUCT NAME:
- SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
$15.95 -
MOOSE RACING Valve Seal Kit M30-30680
MOOSE RACING
$15.95Valve seal degradation leads to oil consumption, blow-by, and performance loss—especially under sustained high RPM operation. The MOOSE RACING Valve Seal Kit M30-30680 replaces worn OEM seals with...09262816- SKU:
- 09262816
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- COLOR/FINISH:
- RED
- MATERIAL:
- VITON
- PRODUCT NAME:
- SEAL KIT
- TYPE:
- VALVE STEM
- APPLICATION:
- INTAKE
- BASE COLOR:
- RED
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$15.95 -
MOOSE RACING Valve Seal Kit M30-31530
MOOSE RACING
$15.95Valve seal degradation is one of the most common culprits behind oil consumption, reduced compression, and failed inspections—especially under high-boost or sustained high-RPM conditions. The MOOSE...09262818- SKU:
- 09262818
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- EXHAUST
- BASE COLOR:
- RED
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- SEAL KIT
- TYPE:
- VALVE STEM
- MATERIAL:
- VITON
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- INTAKE
$15.95Qty in Cart: 0Quantity:Price:$15.95Subtotal: -
MOOSE RACING Valve Seal Kit M60-60570
MOOSE RACING
$15.95Valve seal degradation is one of the most common causes of compression loss and oil consumption in high-mileage engines. The MOOSE RACING Valve Seal Kit M60-60570 replaces worn OEM seals with...09262827- SKU:
- 09262827
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- SEAL KIT
- BASE COLOR:
- RED
- MATERIAL:
- VITON
- TYPE:
- VALVE STEM
$15.95Qty in Cart: 0Quantity:Price:$15.95Subtotal:
