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
-
VESRAH Intake Valve GG-4011-IN
VESRAH
$21.83A worn or damaged intake valve directly compromises your engine's breathing efficiency, reducing power output and fuel economy. The VESRAH Intake Valve GG-4011-IN delivers OEM-matching precision without the OEM price tag, ensuring reliable valve sealing...GG4011IN- SKU:
- GG4011IN
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- VALVE
- STEM DIAMETER METRIC:
- 7.00 MM
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 37.00 MM
- LENGTH METRIC:
- 100.70 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- HEAD DIAMETER:
- 37,00 MM
$21.83 -
VESRAH Exhaust Valve GG-4018-EX
VESRAH
$31.00A worn or damaged exhaust valve compromises combustion efficiency and can lead to power loss, increased emissions, and potential engine damage. The VESRAH Exhaust Valve GG-4018-EX delivers OEM-equivalent precision and durability, restoring your engine's...GG4018EX- SKU:
- GG4018EX
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- EXHAUST
- HEAD DIAMETER:
- 24,70 MM
- LENGTH METRIC:
- 87.16 MM
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER METRIC:
- 5.50 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- HEAD DIAMETER METRIC:
- 24.70 MM
- RIDING STYLE:
- STREET
$31.00 -
VESRAH Intake Valve GG-4018-IN
VESRAH
$19.67Maintaining OEM-equivalent valve performance is critical for engine reliability and consistent power delivery, especially in high-demand racing or rebuilt applications. The VESRAH Intake Valve GG-4018-IN delivers precision-manufactured construction that...GG4018IN- SKU:
- GG4018IN
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- HEAD DIAMETER METRIC:
- 29.00 MM
- RIDING STYLE:
- OFF-ROAD
- HEAD DIAMETER:
- 29,00 MM
- LENGTH METRIC:
- 89.09 MM
- PRODUCT NAME:
- VALVE
- STEM DIAMETER METRIC:
- 5.50 MM
- RIDING STYLE:
- STREET
$19.67 -
VESRAH Intake Valve GG-1023-IN
VESRAH
$20.33A worn or damaged intake valve compromises combustion efficiency, throttle response, and fuel economy. The VESRAH Intake Valve GG-1023-IN restores OEM-spec performance with precision-engineered materials that match factory tolerances and durability...09260398- SKU:
- 09260398
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE
- STEM DIAMETER METRIC:
- 5.00 MM
- HEAD DIAMETER:
- 23,00 MM
- HEAD DIAMETER METRIC:
- 23.00 MM
- LENGTH METRIC:
- 65.80 MM
- RIDING STYLE:
- OFF-ROAD
$20.33 -
VESRAH Exhaust Valve GG-1023-EX
VESRAH
$27.17A worn or damaged exhaust valve compromises combustion efficiency, reducing power output and increasing emissions. The VESRAH GG-1023-EX is precision-manufactured to OEM specifications, ensuring reliable sealing and thermal stability under sustained...09260049- SKU:
- 09260049
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- EXHAUST
- HEAD DIAMETER:
- 20,00 MM
- LENGTH METRIC:
- 65.40 MM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE
- STEM DIAMETER METRIC:
- 5.00 MM
- HEAD DIAMETER METRIC:
- 20.00 MM
- RIDING STYLE:
- OFF-ROAD
$27.17 -
MOOSE RACING Valve and Spring Kit M40-41160
MOOSE RACING
$196.95If you're running OEM titanium valves, you're leaving performance and longevity on the table. The MOOSE RACING Valve and Spring Kit M40-41160 upgrades your cylinder head to Black Diamond stainless steel intake valves that deliver up to 4x longer service...09262445- SKU:
- 09262445
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE AND SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
$196.95 -
MOOSE RACING Intake Valve Kit M60-60460
MOOSE RACING
$196.95If you're running high-RPM applications or extended track sessions, OEM titanium intake valves won't cut it—they're the first component to show fatigue under sustained load. The MOOSE RACING Black Diamond stainless steel conversion kit replaces them with...09262448- SKU:
- 09262448
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- INTAKE
$196.95 -
MOOSE RACING Intake Valve Kit M60-60470
MOOSE RACING
$217.95If you're running high-mileage or high-boost applications, OEM titanium intake valves become a reliability liability. The MOOSE RACING Black Diamond stainless steel conversion kit extends valve train life by up to 4x while improving flow...09262449- SKU:
- 09262449
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- STAINLESS STEEL
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$217.95 -
MOOSE RACING Valve and Spring Kit M60-61160
MOOSE RACING
$196.95If you're running high-performance applications that demand reliability over thousands of miles, OEM titanium intake valves hit a durability ceiling. The MOOSE RACING Valve and Spring Kit M60-61160 replaces that ceiling with stainless steel Black Diamond...09262454- SKU:
- 09262454
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE AND SPRING KIT
$196.95 -
MOOSE RACING Valve and Spring Kit M60-61260
MOOSE RACING
$196.95If you're running your engine hard, valve train durability becomes critical—and OEM titanium intake valves simply can't keep pace with sustained high-performance demands. The MOOSE RACING Valve and Spring Kit M60-61260 replaces them with stainless steel...09262455- SKU:
- 09262455
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE AND SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
$196.95 -
MOOSE RACING Valve Kit M30-32270
MOOSE RACING
$274.95If you're pushing your engine to the limit, your valvetrain needs to match that commitment. Stock valves are engineered for longevity, not peak performance—they flex under high RPM loads and limit your engine's breathing potential. The MOOSE RACING Valve...09262576- SKU:
- 09262576
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MATERIAL:
- TITANIUM
- APPLICATION:
- INTAKE
- MODEL:
- PRO
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
$274.95 -
MOOSE RACING Valve Shim - 9.48 x 1.45 - 5 pack MSE5PK948145
MOOSE RACING
$9.95Proper valve shim sizing is critical to maintaining correct valve clearance and preventing costly engine damage—and having a complete range on hand eliminates guesswork during valve train adjustments. MOOSE Racing shims are forged from 4140 cold-rolled...09261933- SKU:
- 09261933
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 1.45 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
$9.95Qty in Cart: 0Quantity:Price:$9.95Subtotal: -
MOOSE RACING Valve Shim - 9.48 x 1.50 - 5 pack MSE5PK948150
MOOSE RACING
$9.95Maintaining precise valve clearances is critical to engine performance, reliability, and longevity. MOOSE Racing valve shims give you the exact sizing and durability needed to dial in your valve train without guesswork or premature wear. This 5-pack...09261934- SKU:
- 09261934
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ATV
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 1.50 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
$9.95Qty in Cart: 0Quantity:Price:$9.95Subtotal: -
MOOSE RACING Valve Shim - 9.48 x 1.55 - 5 pack MSE5PK948155
MOOSE RACING
$9.95Valve shim maintenance is critical to keeping your engine's valve train operating at peak precision, and having the right sizes on hand eliminates guesswork during adjustment. These MOOSE RACING shims are forged from 4140 cold rolled steel—not...09261935- SKU:
- 09261935
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.55 MM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$9.95 -
MOOSE RACING Valve Shim - 9.48 x 1.70 - 5 pack MSE5PK948170
MOOSE RACING
$9.95Proper valve shim selection is critical for maintaining precise valve clearances and preventing costly engine damage. These MOOSE RACING shims eliminate guesswork during valve train maintenance, allowing you to dial in exact specifications with...09261938- SKU:
- 09261938
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 1.70 MM
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
$9.95 -
MOOSE RACING Valve Shim - 9.48 x 1.75 - 5 pack MSE5PK948175
MOOSE RACING
$9.95Precision valve shim work demands accuracy and reliability—this 5-pack ensures you have quality refills on hand when you need them. Forged from 4140 cold-rolled steel rather than sintered material, these shims deliver the durability required for proper...09261939- SKU:
- 09261939
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 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
- VALVE SHIM THICKNESS METRIC:
- 1.75 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
$9.95 -
MOOSE RACING Valve Shim - 9.48 x 1.80 - 5 pack MSE5PK948180
MOOSE RACING
$9.95Precision valve train maintenance demands reliable, durable shims that won't compromise your engine's performance. MOOSE RACING valve shims eliminate guesswork during valve lash adjustments—each shim is laser-etched for instant identification, so you...09261940- SKU:
- 09261940
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- 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
- VALVE SHIM THICKNESS METRIC:
- 1.80 MM
$9.95 -
MOOSE RACING Valve Shim - 9.48 x 1.90 - 5 pack MSE5PK948190
MOOSE RACING
$9.95Valve shim replacement is an essential maintenance task that directly impacts engine performance, valve clearance, and longevity of your valve train. This 5-pack from MOOSE Racing gives you the precise shims you need to dial in correct valve lash without...09261942- SKU:
- 09261942
- 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
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 1.90 MM
$9.95 -
MOOSE RACING Valve Seal Kit M30-31540
MOOSE RACING
$15.95Valve seal degradation is a common cause of oil consumption and compression loss, particularly in high-performance and turbocharged applications where thermal stress accelerates wear. The MOOSE RACING Valve Seal Kit M30-31540 delivers OEM-equivalent...09262819- SKU:
- 09262819
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SEAL KIT
- TYPE:
- VALVE STEM
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- COLOR/FINISH:
- RED
- BASE COLOR:
- RED
- MATERIAL:
- VITON
- RIDING STYLE:
- OFF-ROAD
$15.95Qty in Cart: 0Quantity:Price:$15.95Subtotal: -
MOOSE RACING Valve Seal Kit M40-40160
MOOSE RACING
$15.95Factory valve seals degrade under sustained high heat and aggressive driving, leading to oil consumption, blow-by, and reduced ring seal integrity. The MOOSE RACING M40-40160 Valve Seal Kit replaces worn seals with precision-engineered components that...09262822- SKU:
- 09262822
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 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
