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,...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
$15.95Qty in Cart: 0Quantity:Price:$15.95Subtotal: -
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...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...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...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...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...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...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...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
$196.95Qty in Cart: 0Quantity:Price:$196.95Subtotal: -
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...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...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...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...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...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...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...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...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
$128.00Proper 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...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
$128.00Qty in Cart: 0Quantity:Price:$128.00Subtotal: -
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...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...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...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
