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 and Spring Kit M80-81110
MOOSE RACING
$196.95If you're running your engine hard, valve train durability becomes non-negotiable. The MOOSE RACING Valve and Spring Kit M80-81110 replaces wear-prone OEM titanium components with stainless steel...09262733- SKU:
- 09262733
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE AND SPRING KIT
$196.95 -
MOOSE RACING Valve Shim - 9.48 x 3.15 - 5 pack MSE5PK948315
MOOSE RACING
$9.95Valve shim maintenance is critical for engine longevity and peak performance, and having the right shims on hand eliminates costly downtime during valve train adjustments. These MOOSE RACING shims...09261967- SKU:
- 09261967
- 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:
- 3.15 MM
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- OFF-ROAD
$9.95 -
MOOSE RACING Valve Shim - 9.48 x 3.20 - 5 pack MSE5PK948320
MOOSE RACING
$9.95Valve shim maintenance is critical to engine longevity and performance—incorrect shim selection leads to improper valve clearance, misfires, and accelerated wear on your valve train. This 5-pack from...09261968- SKU:
- 09261968
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 3.20 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- MATERIAL:
- ROLLED
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
$9.95 -
MOOSE RACING Valve Shim - 9.48 x 3.30 - 5 pack MSE5PK948330
MOOSE RACING
$9.95Valve train maintenance demands precision, and these MOOSE RACING shims deliver it. Forged from 4140 cold rolled steel—not sintered—they resist deformation under valve spring pressure and maintain...09261970- SKU:
- 09261970
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 3.30 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
$9.95 -
MOOSE RACING Valve Shim - 9.48 x 3.35 - 5 pack MSE5PK948335
MOOSE RACING
$9.95Precision valve train maintenance starts with the right shims. If you're dialing in clearances on a built engine or refreshing a valve train, having quality shims in multiple sizes eliminates...09261971- SKU:
- 09261971
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- 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:
- 3.35 MM
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- RIDING STYLE:
- ATV
$9.95 -
MOOSE RACING Intake Valve Kit M30-31500
MOOSE RACING
$217.95If your engine is pushing hard on the track or street, your intake valves are working overtime—and OEM titanium components simply can't keep up with extended use. The MOOSE RACING Intake Valve Kit...09262432- SKU:
- 09262432
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
- APPLICATION:
- INTAKE
$217.95Qty in Cart: 0Quantity:Price:$217.95Subtotal: -
MOOSE RACING Valve and Spring Kit M30-31660
MOOSE RACING
$217.95If you're running high-mileage or high-boost applications, OEM titanium valves can become a limiting factor in reliability and longevity. The MOOSE RACING Valve and Spring Kit replaces them with...09262433- SKU:
- 09262433
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PRODUCT NAME:
- VALVE AND SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- APPLICATION:
- INTAKE
$217.95 -
MOOSE RACING Valve and Spring Kit M30-31760
MOOSE RACING
$217.95If you're running high-mileage power through your engine, OEM titanium intake valves will eventually become a maintenance liability. The MOOSE RACING Valve and Spring Kit M30-31760 replaces them with...09262434- SKU:
- 09262434
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE AND SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
$217.95Qty in Cart: 0Quantity:Price:$217.95Subtotal: -
MOOSE RACING Valve and Spring Kit M30-32060
MOOSE RACING
$196.95If you're running extended engine cycles or high-mileage racing applications, OEM titanium valves become a wear liability. The MOOSE RACING Valve and Spring Kit M30-32060 replaces them with stainless...09262437- SKU:
- 09262437
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE AND SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- KIT
$196.95Qty in Cart: 0Quantity:Price:$196.95Subtotal: -
MOOSE RACING Valve and Spring Kit M30-32260
MOOSE RACING
$196.95If you're running high-mileage track sessions or pushing your engine to the limit, OEM titanium intake valves won't cut it—they fatigue, fail, and force costly downtime. The MOOSE RACING Valve and...09262438- SKU:
- 09262438
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE AND SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
$196.95 -
MOOSE RACING Intake Valve Kit M40-40360
MOOSE RACING
$217.95OEM titanium intake valves are a known weak point in high-RPM applications, limiting both durability and flow potential. The MOOSE RACING Intake Valve Kit M40-40360 replaces them with stainless steel...09262440- SKU:
- 09262440
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
- APPLICATION:
- INTAKE
$217.95Qty in Cart: 0Quantity:Price:$217.95Subtotal: -
MOOSE RACING Intake Valve Kit M30-32780
MOOSE RACING
$196.95If you're running high-mileage on your engine or pushing power levels beyond stock, OEM intake valves become a reliability bottleneck. The MOOSE RACING Black Diamond stainless steel conversion kit...09263194- SKU:
- 09263194
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$196.95Qty in Cart: 0Quantity:Price:$196.95Subtotal: -
MOOSE RACING Valve and Spring Kit M30-32785
MOOSE RACING
$217.95If you're running high-mileage on your current valve train, stainless steel upgrades deliver measurable gains in durability and flow—extending component life by up to 4x compared to OEM titanium...09263195- SKU:
- 09263195
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$217.95Qty in Cart: 0Quantity:Price:$217.95Subtotal: -
MOOSE RACING Intake Valve Kit M96-96540
MOOSE RACING
$217.95If you're running high-mileage or competitive applications, OEM titanium intake valves will eventually limit your engine's reliability and flow potential. The MOOSE RACING Black Diamond stainless...09263196- SKU:
- 09263196
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- INTAKE
$217.95Qty in Cart: 0Quantity:Price:$217.95Subtotal: -
MOOSE RACING Intake Valve Kit M40-41450
MOOSE RACING
$217.95OEM intake valves wear out, and replacement cycles eat into your bottom line. The MOOSE RACING Intake Valve Kit M40-41450 extends valve train life by up to 4x compared to stock titanium components...09263198- SKU:
- 09263198
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- APPLICATION:
- INTAKE
$217.95Qty in Cart: 0Quantity:Price:$217.95Subtotal: -
MOOSE RACING Valve and Spring Kit M40-41455
MOOSE RACING
$196.95If you're running high-mileage track sessions or pushing your engine to the limit, OEM titanium intake valves will eventually cost you reliability and performance. The MOOSE RACING Valve and Spring...09263199- SKU:
- 09263199
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
$196.95 -
MOOSE RACING Valve Seal Kit M40-41460
MOOSE RACING
$15.95Valve seal degradation is a common culprit behind oil consumption, blow-by, and performance loss—especially under high-heat or high-boost conditions. The MOOSE RACING Valve Seal Kit M40-41460...09263202- SKU:
- 09263202
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- SEAL KIT
- TYPE:
- VALVE STEM
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- BASE COLOR:
- RED
- MATERIAL:
- VITON
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- COLOR/FINISH:
- RED
$15.95Qty in Cart: 0Quantity:Price:$15.95Subtotal: -
MOOSE RACING Intake Valve Kit M30-33680
MOOSE RACING
$217.95If you're running high-revving applications or extended racing seasons, OEM titanium intake valves will eventually fail you—often at the worst possible moment. The MOOSE RACING Stainless Steel Intake...09263303- SKU:
- 09263303
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$217.95 -
MOOSE RACING Valve Shim - 10.0 x 2.95 - 5 pack MSE5PK1000295
MOOSE RACING
$10.95Proper valve clearance is critical to engine performance and longevity—even slight deviations can cause compression loss, valve float, or premature wear. These MOOSE RACING valve shims give you...09261852- SKU:
- 09261852
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- ROLLED
- VALVE SHIM THICKNESS METRIC:
- 2.95 MM
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- 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
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$10.95 -
MOOSE RACING Valve Shim - 10.0 x 3.15 - 5 pack MSE5PK1000315
MOOSE RACING
$10.95Valve shim maintenance demands precision—improper sizing compromises valve clearance and engine performance. These MOOSE RACING shims eliminate guesswork with laser-etched identification, ensuring...09261856- SKU:
- 09261856
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 3.15 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- MATERIAL:
- ROLLED
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
$10.95
