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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KIBBLEWHITE Exhaust Valve - Suzuki 60-60718T
KIBBLEWHITE
$109.33Exhaust valves are a critical wear item in high-revving engines, and OEM replacements often can't keep pace with sustained performance demands. The KIBBLEWHITE Tensilite® exhaust valve combines aerospace-grade titanium with a precision PVD coating to...09262761- SKU:
- 09262761
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- TITANIUM
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.2150'
- TULIP ANGLE:
- 20°
- MODEL:
- TENSILITE®
- UNITS:
- EACH
- HEAD DIAMETER METRIC:
- 31.00 MM
- RIDING STYLE:
- OFF-ROAD
$109.33Qty in Cart: 0Quantity:Price:$109.33Subtotal: -
KIBBLEWHITE Exhaust Valve - Yamaha 80-80766T
KIBBLEWHITE
$109.33Exhaust valves are critical to cylinder head integrity and engine performance—they're subject to extreme thermal cycling, combustion pressures, and chemical corrosion that standard steel simply can't handle. KIBBLEWHITE's Tensilite® valves are forged...09262769- SKU:
- 09262769
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- EXHAUST
- STEM DIAMETER IMPERIAL:
- 0.2155'
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- TULIP ANGLE:
- 20°
- HEAD DIAMETER METRIC:
- 30.00 MM
- MATERIAL:
- TITANIUM
- MODEL:
- TENSILITE®
- UNITS:
- EACH
$109.33Qty in Cart: 0Quantity:Price:$109.33Subtotal: -
KIBBLEWHITE Valve Guide Seal - Intake/Exhaust 71040-4
KIBBLEWHITE
$13.96Valve guide seals are critical to preventing oil from seeping into your combustion chambers—a common source of blue smoke, carbon buildup, and lost performance. The KIBBLEWHITE 71040-4 uses Viton construction to withstand extreme heat cycles and...09263100- SKU:
- 09263100
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SEAL
- STEM DIAMETER IMPERIAL:
- 0.333'
- OUTSIDE DIAMETER IMPERIAL:
- 0.4550'
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- TYPE:
- VALVE GUIDE
- MATERIAL:
- VITON
- UNITS:
- 4 PACK
$13.96 -
XCELDYNE Valve Locks XLOM55750
XCELDYNE
$38.18Valve locks are critical to high-RPM engine stability—without secure keepers, you risk catastrophic valve failure and potential engine damage. The XCELDYNE XLOM55750 addresses this with purpose-engineered design and precision manufacturing that keeps...09260524- SKU:
- 09260524
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- LOCK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VALVE
- APPLICATION:
- INTAKE
- RIDING STYLE:
- ATV
- UNITS:
- SET OF 4
$38.18Qty in Cart: 0Quantity:Price:$38.18Subtotal: -
XCELDYNE Valve Locks XLOM55751
XCELDYNE
$38.18Valve locks are critical to engine reliability at high RPM, and failure means catastrophic internal damage. XCELDYNE's purpose-built design keeps your valvetrain secure where inferior locks fail, giving you the confidence to push your engine to its...09260525- SKU:
- 09260525
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- EXHAUST
- UNITS:
- SET OF 4
- MATERIAL:
- STEEL
- PRODUCT NAME:
- LOCK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VALVE
$38.18Qty in Cart: 0Quantity:Price:$38.18Subtotal: -
KIBBLEWHITE Intake Valve Kit 80-80970
KIBBLEWHITE
$261.51Valve train durability is the foundation of reliable engine performance, and OEM titanium intake valves can only take you so far before wear compromises your build. The KIBBLEWHITE Black Diamond intake valve kit replaces your factory components with...09262678- SKU:
- 09262678
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- SPRING OPEN PRESSURE:
- 151 LB
- TYPE:
- CONVERSION
- MATERIAL:
- TITANIUM
- SPRING LIFT:
- 0,425'
- SPRING SEAT PRESSURE:
- 48 LB
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- SPRING LIFT IMPERIAL:
- 0.425'
$261.51Qty in Cart: 0Quantity:Price:$261.51Subtotal: -
KIBBLEWHITE Valve Spring Kit 96-96400
KIBBLEWHITE
$220.26Valve spring performance is critical to engine reliability and RPM capability—inadequate springs lead to valve float, loss of power, and catastrophic engine damage. The KIBBLEWHITE Valve Spring Kit 96-96400 delivers the consistent, precise spring rates...09262704- SKU:
- 09262704
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- SPRING KIT
- SPRING LIFT IMPERIAL:
- 0.450'
- TYPE:
- VALVE
- MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- SPRING OPEN PRESSURE:
- 165 LB
- UNITS:
- KIT
$220.26Qty in Cart: 0Quantity:Price:$220.26Subtotal: -
KIBBLEWHITE Intake Valve - Titanium - KTM 96-96412T
KIBBLEWHITE
$109.33Titanium intake valves are essential for high-RPM engines where thermal expansion and weight savings directly impact performance and reliability. The Kibblewhite Tensilite® design reduces inertial losses, allowing faster valve actuation and more precise...09262706- SKU:
- 09262706
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- TITANIUM
- MODEL:
- TENSILITE®
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 32.51 MM
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- STEM DIAMETER IMPERIAL:
- 0.1960'
- TULIP ANGLE:
- 15°
$109.33 -
KIBBLEWHITE Intake Valve 80-8055H
KIBBLEWHITE
$54.10Intake valves are critical to engine reliability and performance—they're the gateway to your combustion chamber, and any weakness here translates to lost horsepower and potential catastrophic failure. The KIBBLEWHITE White Diamond™ valve delivers...KW808055H- SKU:
- KW808055H
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- STEM DIAMETER IMPERIAL:
- 0.1765'
- HEAD DIAMETER METRIC:
- 27.00 MM
- LENGTH IMPERIAL:
- 3.320'
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE
- SIZE METRIC:
- STANDARD
- APPLICATION:
- INTAKE
- UNITS:
- EACH
- MODEL:
- WHITE DIAMOND™
- RIDING STYLE:
- OFF-ROAD
- TULIP ANGLE:
- 15°
$54.10 -
KIBBLEWHITE Intake Valve Guide 30-30930
KIBBLEWHITE
$15.92Valve guides are critical to controlling oil consumption and maintaining precise valve seat alignment under extreme combustion pressures. A worn or damaged guide compromises engine sealing, increases blow-by, and accelerates cylinder head wear. The...09260412- SKU:
- 09260412
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.2155'
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- C630 BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.4360'
- SIZE IMPERIAL:
- STANDARD
$15.92 -
KIBBLEWHITE Intake Valve Guide 30-31170
KIBBLEWHITE
$15.92Valve guide wear is one of the most common causes of oil consumption and reduced engine efficiency in high-performance applications. The KIBBLEWHITE Intake Valve Guide 30-31170 delivers superior heat dissipation and wear resistance, keeping your intake...09260438- SKU:
- 09260438
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.1960'
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- OUTSIDE DIAMETER IMPERIAL:
- 0.3965'
- SIZE IMPERIAL:
- STANDARD
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE GUIDE
$15.92Qty in Cart: 0Quantity:Price:$15.92Subtotal: -
KIBBLEWHITE Exhaust Valve 30-3117
KIBBLEWHITE
$37.55Exhaust valves endure extreme heat cycles and aggressive combustion pressures—factory originals often become the weak link in high-performance builds. The KIBBLEWHITE Black Diamond™ Exhaust Valve (30-3117) is engineered to handle sustained RPMs and...KW303117- SKU:
- KW303117
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MODEL:
- BLACK DIAMOND™
- TULIP ANGLE:
- 29°
- LENGTH IMPERIAL:
- 3.980'
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- HEAD DIAMETER METRIC:
- 29.00 MM
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- ATV
- STEM DIAMETER IMPERIAL:
- 0.2150'
$37.55Qty in Cart: 0Quantity:Price:$37.55Subtotal: -
KIBBLEWHITE Cast Iron Valve Seat 10-SC280
KIBBLEWHITE
$8.12Valve seat recession is one of the fastest ways to lose compression and combustion efficiency in high-performance engines—especially when running aggressive fuel blends or boost. KIBBLEWHITE's Cast Iron Valve Seats use proprietary powdered metal...09261630- SKU:
- 09261630
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- VALVE SEAT HEIGHT METRIC:
- 9.50 MM
- HEAD DIAMETER METRIC:
- 28.00 MM
- INSIDE DIAMETER METRIC:
- 20.00 MM
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 28.00 MM
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE SEAT
- UNITS:
- EACH
$8.12 -
KIBBLEWHITE Cast Iron Valve Seat 10-SC350
KIBBLEWHITE
$9.02Valve seat recession and microwelding failure can cost you a race—or worse, leave you stranded on the street. KIBBLEWHITE's cast iron valve seats are engineered with powdered metal technology to deliver uniform hardness, exceptional heat dissipation, and...09261636- SKU:
- 09261636
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- INSIDE DIAMETER METRIC:
- 26.00 MM
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- OUTSIDE DIAMETER METRIC:
- 35.00 MM
- HEAD DIAMETER METRIC:
- 35.00 MM
- PRODUCT NAME:
- VALVE SEAT
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- VALVE SEAT HEIGHT METRIC:
- 10.00 MM
$9.02Qty in Cart: 0Quantity:Price:$9.02Subtotal: -
KIBBLEWHITE Valve Guide - Intake 96-96520-I
KIBBLEWHITE
$22.95Valve guides are critical to maintaining proper valve stem clearance and preventing oil seepage into your combustion chamber—a worn guide will compromise both performance and engine longevity. The KIBBLEWHITE Intake Valve Guide delivers...09263045- SKU:
- 09263045
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MATERIAL:
- CAST IRON
- OUTSIDE DIAMETER IMPERIAL:
- 0.4352'
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE GUIDE
- SIZE IMPERIAL:
- STANDARD
- UNITS:
- EACH
- INSIDE DIAMETER IMPERIAL:
- 0.2353'
- RIDING STYLE:
- OFF-ROAD
$22.95Qty in Cart: 0Quantity:Price:$22.95Subtotal: -
KIBBLEWHITE Intake Valve Guide 80-80110
KIBBLEWHITE
$22.29Valve guides are critical to engine longevity—they maintain precise valve alignment, prevent wear on valve stems, and directly impact combustion efficiency and port flow. The KIBBLEWHITE 80-80110 is precision-machined from C630 material with a tapered...09263097- SKU:
- 09263097
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- INTAKE
- UNITS:
- EACH
- BASE COLOR:
- BROWN
- PRODUCT NAME:
- VALVE GUIDE
- MATERIAL:
- C630 BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.3957'
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BRONZE
- INSIDE DIAMETER IMPERIAL:
- 0.1765'
- SIZE IMPERIAL:
- STANDARD
$22.29Qty in Cart: 0Quantity:Price:$22.29Subtotal: -
KIBBLEWHITE Cylinder Head Service Kit 30-33310
KIBBLEWHITE
$466.90A complete cylinder head refresh demands precision components that work in concert—and the KIBBLEWHITE 30-33310 Service Kit delivers exactly that. This comprehensive kit eliminates the guesswork of sourcing compatible valve springs, guides, and gaskets...09263117- SKU:
- 09263117
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- MATERIAL:
- TITANIUM
- SPRING SEAT PRESSURE:
- 50 LB
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- SPRING LIFT:
- 0,385'
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- OFF-ROAD
- SPRING LIFT IMPERIAL:
- 0.385'
- SPRING OPEN PRESSURE:
- 160 LB
- APPLICATION:
- INTAKE
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
$466.90Qty in Cart: 0Quantity:Price:$466.90Subtotal: -
KIBBLEWHITE Spring Kit 30-32400
KIBBLEWHITE
$229.93A properly engineered valve spring kit is essential for maintaining consistent valve seating, preventing float at high RPMs, and ensuring reliable performance under sustained load. The KIBBLEWHITE Spring Kit 30-32400 delivers OEM-quality construction...09262980- SKU:
- 09262980
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- SPRING OPEN PRESSURE:
- 160 LB
- TYPE:
- VALVE
- UNITS:
- KIT
- MATERIAL:
- TITANIUM
- PRODUCT NAME:
- SPRING KIT
- SPRING LIFT IMPERIAL:
- 0.380'
- APPLICATION:
- EXHAUST
$229.93Qty in Cart: 0Quantity:Price:$229.93Subtotal: -
KIBBLEWHITE Exhaust Valve 30-32416
KIBBLEWHITE
$37.55Exhaust valves are critical components that directly impact engine efficiency, reliability, and longevity. The KIBBLEWHITE Black Diamond™ 30-32416 is engineered to withstand extreme temperatures and combustion pressures while maintaining precise...09262983- SKU:
- 09262983
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- HEAD DIAMETER METRIC:
- 25.00 MM
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 20°
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MODEL:
- BLACK DIAMOND™
- LENGTH IMPERIAL:
- 3.310'
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER IMPERIAL:
- 0.1956'
$37.55Qty in Cart: 0Quantity:Price:$37.55Subtotal: -
KIBBLEWHITE Exhaust Valve - Stantard - Tensilite‚® - CRF250R 30-32416T
KIBBLEWHITE
$109.33Exhaust valve performance directly impacts your CRF250R's scavenging efficiency and peak horsepower delivery. KIBBLEWHITE's Tensilite® valves are precision-forged from aerospace-grade titanium and finished with a CrN PVD coating—delivering superior heat...09262986- SKU:
- 09262986
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER IMPERIAL:
- 0.1956'
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 20°
- HEAD DIAMETER METRIC:
- 25.00 MM
- MATERIAL:
- TITANIUM
- MODEL:
- TENSILITE®
- UNITS:
- EACH
$109.33Qty in Cart: 0Quantity:Price:$109.33Subtotal:
