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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XCELDYNE Valve Seal Kit CVMSEA12001
XCELDYNE
$15.53Valve seal degradation is one of the most common sources of oil consumption and compression loss in high-mileage engines. The XCELDYNE Valve Seal Kit CVMSEA12001 replaces worn seals with premium Viton material that significantly reduces parasitic drag...09260653- SKU:
- 09260653
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MATERIAL:
- VITON
- TYPE:
- VALVE
- PRODUCT NAME:
- SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$15.53Qty in Cart: 0Quantity:Price:$15.53Subtotal: -
On Sale
XCELDYNE Valve Seal Kit CVMSEA13001
XCELDYNE
MSRP: $15.53Now: $10.00Was: $15.53Valve seal degradation is one of the most insidious sources of oil consumption and power loss in high-mileage engines. The XCELDYNE Valve Seal Kit CVMSEA13001 replaces worn seals with premium Viton material that maintains a precise oil barrier at the...09260655- SKU:
- 09260655
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MATERIAL:
- VITON
- PRODUCT NAME:
- SEAL KIT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VALVE
- UNITS:
- KIT
MSRP: $15.53Now: $10.00Was: $15.53 -
KIBBLEWHITE Valve Seal - 4.5mm - Viton 80-80710
KIBBLEWHITE
$17.45Valve seals are critical to controlling oil consumption and maintaining combustion chamber integrity—a worn or inadequate seal can lead to oil burning, carbon buildup, and lost power. The Kibblewhite 4.5mm Viton 80-80710 delivers OEM-specification...09263369- SKU:
- 09263369
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SEAL
- STEM DIAMETER METRIC:
- 4.50 MM
- TYPE:
- VALVE
- APPLICATION:
- INTAKE
- OUTSIDE DIAMETER IMPERIAL:
- 0.370'
- MATERIAL:
- VITON
- UNITS:
- SET OF 8
$17.45 -
XCELDYNE Valve Spring Bucket XBT22202
XCELDYNE
$140.49If you're pushing your engine to higher RPMs with performance camshafts, stock valve spring buckets become your limiting factor—creating excess wear on your cylinder head and robbing you of potential horsepower. The XCELDYNE Valve Spring Bucket XBT22202...09260625- SKU:
- 09260625
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- PRODUCT NAME:
- SPRING BUCKET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
$140.49 -
KIBBLEWHITE Valve - Intake - Tensilite 40-41612T
KIBBLEWHITE
$92.51If you're serious about maximizing valve life and performance on your engine build, OEM intake valves simply won't cut it. Kibblewhite's Black Diamond intake valves are purpose-built from premium 21-4N stainless steel with proprietary stem treatment that...09263389- SKU:
- 09263389
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
$92.51 -
MOOSE RACING Exhaust Valve M40-41660
MOOSE RACING
$196.95Stock exhaust valves wear out, compromise flow, and force costly rebuilds. The MOOSE RACING M40-41660 stainless steel exhaust valve extends valve train life up to 4x longer than OEM titanium while delivering superior flow characteristics and consistent...09263372- SKU:
- 09263372
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
$196.95 -
MOOSE RACING Intake Valve M30-34000
MOOSE RACING
$196.95Stock intake valves leave performance on the table—restricted flow, inconsistent sealing, and premature wear are common limitations in OEM designs. The MOOSE RACING M30-34000 Intake Valve addresses these weaknesses with precision engineering and...09263373- SKU:
- 09263373
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
$196.95Qty in Cart: 0Quantity:Price:$196.95Subtotal: -
MOOSE RACING Valve Kit M30-32285
MOOSE RACING
$259.95Factory valve sets are engineered with a specific purpose: deliver consistent performance within OE tolerances. The MOOSE RACING M30-32285 Valve Kit replaces worn or damaged valves while maintaining your engine's original spring geometry, eliminating the...09262579- SKU:
- 09262579
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MATERIAL:
- TITANIUM
- MODEL:
- PRO
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
$259.95Qty in Cart: 0Quantity:Price:$259.95Subtotal: -
MOOSE RACING Valve Shim - 9.48 x 2.75 - 5 pack MSE5PK948275
MOOSE RACING
$9.95Valve shim maintenance is critical to engine longevity and performance—improper shimming leads to valve clearance issues, lost compression, and catastrophic engine damage. The MOOSE RACING 9.48 x 2.75 Valve Shim 5-pack eliminates guesswork with...09261959- SKU:
- 09261959
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- VALVE SHIM THICKNESS METRIC:
- 2.75 MM
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$9.95 -
MOOSE RACING Valve Shim - 9.48 x 2.80 - 5 pack MSE5PK948280
MOOSE RACING
$9.95Precision valve train maintenance demands reliable, clearly-identified shims that won't let you down mid-rebuild. These MOOSE RACING shims eliminate guesswork with laser-etched sizing and forged 4140 steel construction that maintains dimensional...09261960- SKU:
- 09261960
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- VALVE SHIM THICKNESS METRIC:
- 2.80 MM
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$9.95 -
MOOSE RACING Valve Shim - 10.0 x 2.40 - 5 pack MSE5PK1000240
MOOSE RACING
$10.95Proper valve shim selection is critical for maintaining accurate valve clearances and preventing premature wear on your valve train. These MOOSE RACING shims are forged from 4140 cold-rolled steel—not sintered—giving you the durability and precision...09261841- SKU:
- 09261841
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 2.40 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
MOOSE RACING Valve Shim - 10.0 x 2.50 - 5 pack MSE5PK1000250
MOOSE RACING
$10.95Maintaining precise valve clearances is critical to engine performance and longevity, and having quality shims on hand eliminates downtime during valve train service. MOOSE Racing valve shims are forged from 4140 cold rolled steel—not sintered—giving you...09261843- SKU:
- 09261843
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 2.50 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- UNITS:
- 5 PACK
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
MOOSE RACING Valve Shim - 10.0 x 2.70 - 5 pack MSE5PK1000270
MOOSE RACING
$10.95Valve shim maintenance is critical for precise valve train geometry and consistent performance across rebuild cycles. These MOOSE RACING shims eliminate guesswork with laser-etched sizing, allowing you to quickly identify the exact thickness needed...09261847- SKU:
- 09261847
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 2.70 MM
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
MOOSE RACING Valve Shim - 7.48 x 1.65 - 5 pack MSE5PK748165
MOOSE RACING
$9.95Precision valve shim sets are essential for maintaining proper valve clearance and preventing costly valve train damage during high-performance operation. These MOOSE RACING shims eliminate guesswork during valve adjustments by offering exact sizing with...09261867- SKU:
- 09261867
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- ATV
- VALVE SHIM THICKNESS METRIC:
- 1.65 MM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
$9.95 -
MOOSE RACING Valve Shim - 8.90 x 2.16 - 5 pack MSE5PK890216
MOOSE RACING
$10.95Proper valve shim selection is critical for maintaining correct valve clearance and preventing costly engine damage. These forged 4140 steel shims are engineered for precision and durability, making valve train maintenance straightforward and reliable...09261916- SKU:
- 09261916
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 8.90 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 2.16 MM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ATV
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
VESRAH Intake Valve GG-2013-IN
VESRAH
$12.83Maintaining OEM-equivalent valve performance is critical for engine reliability and consistent combustion efficiency. The VESRAH Intake Valve GG-2013-IN is precision-manufactured to match factory specifications, ensuring your engine breathes properly...GG2013IN- SKU:
- GG2013IN
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- LENGTH METRIC:
- 93.80 MM
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- STEM DIAMETER METRIC:
- 6.00 MM
- HEAD DIAMETER:
- 34,00 MM
- HEAD DIAMETER METRIC:
- 34.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$12.83 -
VESRAH Intake Valve GG-1040-IN
VESRAH
$27.00A worn or damaged intake valve compromises combustion efficiency, throttle response, and fuel economy—potentially leading to costly engine damage if left unchecked. The VESRAH Intake Valve GG-1040-IN delivers OEM-equivalent precision and durability at a...09262806- SKU:
- 09262806
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- HEAD DIAMETER METRIC:
- 28.50 MM
- LENGTH METRIC:
- 96.60 MM
- PRODUCT NAME:
- VALVE
- STEM DIAMETER METRIC:
- 5.50 MM
- APPLICATION:
- INTAKE
- HEAD DIAMETER:
- 28,50 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- 2 PIECE
$27.00 -
MOOSE RACING Intake Valve Kit M96-96450
MOOSE RACING
$217.95If you're running high-revving applications or pushing extended engine hours, OEM titanium intake valves will eventually become a reliability bottleneck. The MOOSE RACING Intake Valve Kit M96-96450 replaces them with stainless steel Black Diamond valves...09262467- SKU:
- 09262467
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$217.95Qty in Cart: 0Quantity:Price:$217.95Subtotal: -
MOOSE RACING Valve and Spring Kit M30-32450
MOOSE RACING
$115.95If you're running high-mileage on your engine or pushing performance limits, OEM titanium valves won't cut it anymore. The MOOSE RACING Valve and Spring Kit M30-32450 replaces them with stainless steel Black Diamond intake valves engineered to last 4x...09262933- SKU:
- 09262933
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE KIT
$115.95Qty in Cart: 0Quantity:Price:$115.95Subtotal: -
MOOSE RACING Valve Shim Kit - 9.48 mm MSEHCSHIM02
MOOSE RACING
$127.95Proper valve shim selection is critical for maintaining correct valve clearance and preventing costly engine damage. This complete kit eliminates guesswork during valve train maintenance, ensuring your engine maintains optimal performance and longevity...09261828- SKU:
- 09261828
- Availability:
- Ships Same Business Day
- Weight:
- 1.27 LBS
- MATERIAL:
- ROLLED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- PRODUCT NAME:
- SHIM KIT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$127.95
