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 M60-60870
MOOSE RACING
$15.95Valve seals are critical to engine longevity—they prevent oil from leaking into the combustion chamber and maintain compression integrity. Over time, OEM seals degrade under heat and pressure, leading to oil consumption, blue smoke, and reduced...09262829- SKU:
- 09262829
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- VITON
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- SEAL KIT
- APPLICATION:
- EXHAUST
- BASE COLOR:
- RED
- TYPE:
- VALVE STEM
$15.95 -
MOOSE RACING Valve Seal Kit M80-80880
MOOSE RACING
$15.95Valve seal degradation causes oil blow-by, compression loss, and increased emissions—problems that compound quickly under racing conditions or high-mileage use. The MOOSE RACING M80-80880 Valve Seal Kit delivers OEM-equivalent fitment with improved...09262832- SKU:
- 09262832
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- INTAKE
- BASE COLOR:
- RED
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- RED
- MATERIAL:
- VITON
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE STEM
$15.95Qty in Cart: 0Quantity:Price:$15.95Subtotal: -
MOOSE RACING Valve and Spring Kit M30-31860
MOOSE RACING
$217.95If you're running high-mileage racing applications, OEM valve and spring components become a reliability liability. The MOOSE RACING M30-31860 addresses this with Black Diamond stainless steel intake valves engineered to deliver up to 4x longer service...09262435- SKU:
- 09262435
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE AND SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$217.95 -
MOOSE RACING Valve and Spring Kit M30-31960
MOOSE RACING
$196.95If you're running high-mileage on OEM titanium valves, you're leaving performance and reliability on the table. The MOOSE RACING Valve and Spring Kit M30-31960 replaces worn intake components with stainless steel Black Diamond valves engineered to...09262436- SKU:
- 09262436
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 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 M40-40350
MOOSE RACING
$196.95Stock intake valves are a limiting factor in any high-performance engine build, prone to premature wear and thermal fatigue under sustained boost or high RPM loads. The MOOSE RACING M40-40350 Intake Valve Kit replaces OEM titanium components with...09262439- SKU:
- 09262439
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- INTAKE
$196.95 -
MOOSE RACING Valve and Spring Kit M80-80860
MOOSE RACING
$217.95Factory valve trains wear out—MOOSE Racing's stainless steel conversion kit extends intake valve life by up to 4x over OEM titanium components while improving flow and performance. If you're serious about maximizing engine longevity and reliability in...09262458- SKU:
- 09262458
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE AND SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
$217.95 -
MOOSE RACING Intake Valve Kit M80-81050
MOOSE RACING
$196.95If you're running a high-performance engine, your intake valves are working harder than factory components were designed to handle. The MOOSE RACING Intake Valve Kit M80-81050 replaces OEM titanium valves with proprietary Black Diamond stainless steel...09262461- SKU:
- 09262461
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
$196.95Qty in Cart: 0Quantity:Price:$196.95Subtotal: -
MOOSE RACING Valve and Spring Kit M80-81060
MOOSE RACING
$196.95OEM titanium intake valves wear out fast under high-performance demands, limiting your engine's lifespan and reliability. The MOOSE RACING Valve and Spring Kit M80-81060 replaces them with stainless steel Black Diamond valves that last up to 4x longer...09262462- SKU:
- 09262462
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE AND SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- INTAKE
$196.95 -
MOOSE RACING Intake Valve Kit M96-96070
MOOSE RACING
$196.95If you're running hard on the track or pushing your engine to its limits, your intake valves are working overtime. The MOOSE RACING Intake Valve Kit M96-96070 replaces your stock titanium valves with premium stainless steel Black Diamond valves that...09262463- SKU:
- 09262463
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MATERIAL:
- STAINLESS STEEL
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$196.95 -
MOOSE RACING Valve and Spring Kit M96-96360
MOOSE RACING
$196.95If you're running a high-performance engine, your valve train is under constant stress—and OEM titanium valves often become the limiting factor in reliability and longevity. The MOOSE RACING Valve and Spring Kit M96-96360 replaces those components with...09262464- SKU:
- 09262464
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE AND SPRING KIT
- RIDING STYLE:
- OFF-ROAD
$196.95 -
MOOSE RACING Valve and Spring Kit M96-96460
MOOSE RACING
$217.95If you're running high-mileage or high-performance applications, OEM titanium intake valves will eventually become a reliability bottleneck. The MOOSE RACING Valve and Spring Kit M96-96460 replaces them with stainless steel Black Diamond valves...09262468- SKU:
- 09262468
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE AND SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
$217.95 -
MOOSE RACING Intake Valve Kit M30-31200
MOOSE RACING
$217.95OEM intake valves wear out—especially under sustained high-RPM operation. The MOOSE RACING Intake Valve Kit M30-31200 replaces them with stainless steel Black Diamond valves that deliver up to 4x longer service life while improving flow characteristics...09262427- SKU:
- 09262427
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
$217.95 -
MOOSE RACING Intake Valve Kit M30-31230
MOOSE RACING
$196.95Extended valve life directly translates to reduced maintenance costs and more consistent performance over thousands of miles—critical for both race applications and high-demand street engines. MOOSE Racing's stainless steel Black Diamond intake valves...09262429- SKU:
- 09262429
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
$196.95 -
MOOSE RACING Intake Valve Kit M80-82350
MOOSE RACING
$196.95OEM titanium intake valves wear out and require frequent replacement—stainless steel conversion eliminates that cycle. The MOOSE RACING Black Diamond intake valves extend valve train life by up to 4x while delivering superior flow characteristics and...09263192- SKU:
- 09263192
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
$196.95 -
MOOSE RACING Valve and Spring Kit M80-82360
MOOSE RACING
$196.95Factory titanium intake valves wear faster and restrict flow potential in high-performance applications. The MOOSE RACING Valve and Spring Kit M80-82360 replaces them with stainless steel Black Diamond valves engineered to extend valve train life by up...09263193- SKU:
- 09263193
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
$196.95 -
MOOSE RACING Exhaust Valve Kit M30-33690
MOOSE RACING
$169.95Your intake valves are the gatekeepers of cylinder filling—and factory titanium components simply don't last through serious competition or high-mileage abuse. The MOOSE RACING Exhaust Valve Kit M30-33690 upgrades your cylinder head to stainless steel...09263304- SKU:
- 09263304
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
$169.95 -
MOOSE RACING Valve Shim Kit - 7.48 mm MSEHCSHIM01
MOOSE RACING
$127.95Proper valve shim selection is critical to maintaining accurate valve clearances and preventing costly engine damage. This complete MOOSE RACING kit eliminates guesswork during valve train service by providing precision-engineered shims with clear...09261827- SKU:
- 09261827
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SHIM KIT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
$127.95Qty in Cart: 0Quantity:Price:$127.95Subtotal: -
MOOSE RACING Valve Shim - 10.0 x 1.90 - 5 pack MSE5PK1000190
MOOSE RACING
$10.95Proper valve shim selection is critical for maintaining accurate valve clearances, which directly impacts engine performance, fuel efficiency, and longevity. If your valve train clearances drift out of spec, you'll face compromised combustion timing and...09261831- SKU:
- 09261831
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- RIDING STYLE:
- ATV
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.90 MM
$10.95 -
MOOSE RACING Valve Shim - 10.0 x 1.95 - 5 pack MSE5PK1000195
MOOSE RACING
$10.95Precision valve shim adjustment is essential for maintaining optimal valve clearance and preventing costly engine damage. This 5-pack of MOOSE Racing shims gives you the exact sizes you need for quick, accurate valve train maintenance without the expense...09261832- SKU:
- 09261832
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- VALVE SHIM THICKNESS METRIC:
- 1.95 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
MOOSE RACING Valve Shim - 10.0 x 2.00 - 5 pack MSE5PK1000200
MOOSE RACING
$10.95Proper valve shim selection is critical for maintaining correct valve clearance and preventing premature wear on your cylinder head. These MOOSE Racing shims are precision-forged from 4140 cold rolled steel—not sintered—ensuring consistent hardness and...09261833- SKU:
- 09261833
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.00 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- ROLLED
- RIDING STYLE:
- ATV
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
$10.95
