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
-
On Sale
KIBBLEWHITE Intake Valve 40-40412
KIBBLEWHITE
MSRP: $31.01Now: $27.91Was: $31.01Kibblewhite's Black Diamond™ intake valves are engineered for engines that demand precision and longevity. Built from EV8 stainless steel forgings, these valves deliver reduced friction and exceptional wear resistance—critical for high-RPM applications...09261649- SKU:
- 09261649
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- RIDING STYLE:
- UTV
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 30.00 MM
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- LENGTH IMPERIAL:
- 3.600'
- RIDING STYLE:
- ATV
- STEM DIAMETER IMPERIAL:
- 0.1960'
- TULIP ANGLE:
- 10°
- UNITS:
- EACH
MSRP: $31.01Now: $27.91Was: $31.01 -
On Sale
KIBBLEWHITE Exhaust Valve Guide 96-96280
KIBBLEWHITE
MSRP: $24.89Now: $22.40Was: $24.89Valve guide wear is one of the most common culprits behind oil consumption, loss of compression, and erratic idle in high-performance engines. The KIBBLEWHITE Exhaust Valve Guide 96-96280 replaces worn guides with precision-engineered components that...09261716- SKU:
- 09261716
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.1960'
- MATERIAL:
- C630 BRONZE
- SIZE IMPERIAL:
- STANDARD
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- OUTSIDE DIAMETER IMPERIAL:
- 0.3958'
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- OFF-ROAD
MSRP: $24.89Now: $22.40Was: $24.89Qty in Cart: 0Quantity:Price:MSRP: $24.89Now: $22.40Was: $24.89Subtotal: -
Hot Cams Valve Shim 10.0 x 2.80 for 2008-2010 KTM 530 EXC-R 5PK1000280
HOT CAMS
$10.95Valve clearance directly impacts your 530 EXC-R's power delivery, fuel efficiency, and engine longevity—and shim wear is inevitable with high-mileage performance riding. This 5-pack of precision-engineered Hot Cams shims lets you maintain tight...09261293- SKU:
- 09261293
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SHIM
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.80 MM
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
Hot Cams Exhaust Valve Steel Honda CRF450R 2013-2020 8400027-5
HOT CAMS
$54.95The exhaust valve is critical to your CRF450R's combustion efficiency—a worn or inferior valve directly impacts power delivery, fuel economy, and engine longevity. The HOT CAMS 8400027-5 is a forged, precision-engineered replacement that restores OEM...09262913- SKU:
- 09262913
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- BLACK
- STEM DIAMETER METRIC:
- 4.980 MM
- APPLICATION:
- EXHAUST
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$54.95Qty in Cart: 0Quantity:Price:$54.95Subtotal: -
Hot Cams Valve Shim 10.00mm x 2.20mm for 2008-2010 KTM 530 EXC-R 5PK1000220
HOT CAMS
$10.95Valve clearance directly affects your 530 EXC-R's combustion efficiency, fuel economy, and engine longevity. Over time, thermal cycling causes shims to wear, requiring periodic replacement to maintain precise tolerances. This 5-pack of HOT CAMS shims...09261281- SKU:
- 09261281
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- TYPE:
- VALVE
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SHIM
- UNITS:
- 5 PACK
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 2.20 MM
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
Hot Cams Valve Shim 7.48mm x 1.95mm for Honda CRF 250R 2004-2017 5PK748195
HOT CAMS
$10.95Valve clearance drift is inevitable in high-mileage engines—even small deviations reduce combustion efficiency and accelerate wear. Hot Cams valve shims deliver the precision adjustment your CRF 250R needs to maintain peak performance and extend engine...09261317- SKU:
- 09261317
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.95 MM
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
$10.95 -
Hot Cams Valve Shim 7.48mm x 2.10mm for Honda CRF150R 2007-2016 5PK748210
HOT CAMS
$10.95Valve clearance directly impacts your CRF150R's horsepower delivery, fuel efficiency, and engine longevity. Hot Cams valve shims are precision-engineered to maintain exact tolerances, preventing costly valve train wear and ensuring consistent performance...09261320- SKU:
- 09261320
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 2.10 MM
- PRODUCT NAME:
- SHIM
- TYPE:
- VALVE
- UNITS:
- 5 PACK
$10.95 -
Hot Cams Valve Shim 7.48mm x 2.15mm for Honda CRF 150R 2007-2018 5PK748215
HOT CAMS
$10.95Valve shim clearance directly impacts cam timing accuracy and engine responsiveness—neglect it, and you'll lose horsepower and risk valve damage. The Hot Cams 7.48mm x 2.15mm Valve Shim pack gives you five precision-manufactured shims to maintain optimal...09261321- SKU:
- 09261321
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- VALVE SHIM THICKNESS METRIC:
- 2.15 MM
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SHIM
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$10.95 -
Hot Cams Valve Shim 7.48mm x 3.30mm for Honda CRF 150R 2007-2018 5PK748330
HOT CAMS
$10.95Valve clearance directly impacts combustion efficiency, valve train longevity, and overall engine performance—even small deviations can cause valves to float or create excessive wear. Hot Cams valve shims give you precision control over clearance...09261344- SKU:
- 09261344
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- VALVE SHIM THICKNESS METRIC:
- 3.30 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
Hot Cams Valve Shim 9.48mm x 3.05mm for Honda CRF450R 2002-2018 5PK948305
HOT CAMS
$10.95Valve shim wear directly impacts engine efficiency and responsiveness. Hot Cams Valve Shims maintain precise valve clearance, which is critical for proper combustion timing and consistent performance across your CRF450R's rev range. This 5-pack ensures...09261409- SKU:
- 09261409
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- VALVE SHIM THICKNESS METRIC:
- 3.05 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- TYPE:
- VALVE
$10.95 -
Hot Cams Valve Shim Kit 9.48mm x 3.50mm for Honda CRF450R 2002-2014 HCSHIM02
HOT CAMS
$9.95Valve clearance directly impacts combustion efficiency, fuel economy, and engine longevity—and improper clearance accelerates wear on cam lobes and rocker arms. This Hot Cams valve shim kit gives you precise control over clearance tolerances on your...09261418- SKU:
- 09261418
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 3.50 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
$9.95Qty in Cart: 0Quantity:Price:$9.95Subtotal: -
Hot Cams Valve Shim 7.48mm x 2.50mm for Honda CRF 150R 2007-2018 5PK748250
HOT CAMS
$10.95Valve shim clearance directly impacts combustion efficiency, valve timing accuracy, and overall engine longevity. The HOT CAMS 7.48 x 2.50mm shim pack gives you five precision-ground replacements to maintain tight tolerances on your Honda CRF 150R,...09261328- SKU:
- 09261328
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.50 MM
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
Hot Cams Valve Shim 7.48mm x 3.25mm for Honda CRF150R 2007-2019 5PK748325
HOT CAMS
$10.95Valve clearance directly impacts combustion efficiency, fuel economy, and engine longevity—and improper shim selection compromises all three. This HOT CAMS 5-pack gives you precise adjustment options without the downtime of sourcing individual shims,...09261343- SKU:
- 09261343
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- VALVE SHIM THICKNESS METRIC:
- 3.25 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
$10.95 -
Hot Cams Valve Shim 7.48mm x 3.35mm for Honda CBR600F 2005 5PK748335
HOT CAMS
$10.95Valve shim clearance directly impacts combustion efficiency, cam timing accuracy, and overall engine reliability—getting it right requires precision-matched components. The HOT CAMS 7.48mm x 3.35mm Valve Shim pack gives you five quality shims on hand so...09261345- SKU:
- 09261345
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 3.35 MM
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
Hot Cams Valve Shim 7.48mm x 3.45mm for Honda CRF150R 2007-2019 5PK748345
HOT CAMS
$10.95Valve shim clearance directly impacts combustion efficiency, valve timing accuracy, and overall engine longevity—especially critical on high-revving four-strokes like the Honda CRF150R. This five-pack of OEM-equivalent shims gives you the precision...09261347- SKU:
- 09261347
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- OUTSIDE DIAMETER METRIC:
- 7.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 3.45 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
Hot Cams Valve Shim 9.48mm x 1.35mm for Honda CRF450R 2002-2014 5PK948135
HOT CAMS
$10.95Valve clearance directly impacts horsepower, fuel efficiency, and engine longevity—and worn shims rob you of all three. The Hot Cams 9.48mm x 1.35mm Valve Shim delivers precision-engineered tolerance control for your CRF450R, ensuring your valve train...09261375- SKU:
- 09261375
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 1.35 MM
$10.95 -
Hot Cams Valve Shim 10.0mm x 2.45mm for KTM 690 Enduro R 2009-2010 5PK1000245
HOT CAMS
$11.95Enhance your engine's performance with the HOT CAMS Valve Shim 10.0 x 2.45. This pack includes five high-quality shims, designed to ensure optimal valve clearance and precision adjustments for your valve shim kits. Perfect for mechanics and enthusiasts...09261286- SKU:
- 09261286
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SHIM
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.45 MM
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- TYPE:
- VALVE
- MATERIAL:
- STEEL
$11.95Qty in Cart: 0Quantity:Price:$11.95Subtotal: -
Wiseco Valve Kit 2007-2008 Kawasaki KX250F SVKB4336
WISECO
$365.95Valve wear is one of the most common failure points in high-revving two-stroke engines, directly impacting combustion efficiency and overall power delivery. The Wiseco Valve Kit SVKB4336 replaces worn or damaged valves and springs with precision-matched...09263076- SKU:
- 09263076
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$365.95 -
Wiseco Valve Kit 2014-2016 KTM 250 EXC-F SVKB6334
WISECO
$344.95If you're rebuilding a 2014-2016 KTM 250 EXC-F or pushing your engine beyond stock limits, valve integrity directly impacts combustion efficiency, throttle response, and engine longevity. The Wiseco SVKB6334 supplies OEM-spec intake and exhaust valves...09263084- SKU:
- 09263084
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$344.95Qty in Cart: 0Quantity:Price:$344.95Subtotal: -
Wiseco Valve Kit 2012-2016 KTM 350 EXC-F SVKB6353
WISECO
$344.95Valve degradation is one of the fastest ways to lose compression, throttle response, and overall engine reliability in your 350 EXC-F. The Wiseco Valve Kit SVKB6353 replaces worn or damaged valves and springs with precision-engineered components that...09263086- SKU:
- 09263086
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
$344.95Qty in Cart: 0Quantity:Price:$344.95Subtotal:
