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!
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- Qty in Cart
- Quantity
- Price
- Subtotal
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Wiseco Steel Intake Valve for KTM 525 XC 2008-2010 VIS035
WISECO
$43.95The Wiseco Steel Intake Valve VIS035 is engineered to deliver extended valve lifespan and reliable performance under the demanding conditions of high-RPM racing and aggressive riding. Its advanced surface treatment significantly reduces wear and...09261749- SKU:
- 09261749
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
$43.95 -
Wiseco Exhaust Valve for Honda CRF250R 2004-2007 VES001
WISECO
$49.95Factory exhaust valves wear quickly under aggressive riding conditions, leading to compression loss and declining performance. The Wiseco VES001 replaces worn valves with a precision-engineered component featuring advanced surface treatments that resist...09260257- SKU:
- 09260257
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
$49.95 -
Wiseco Exhaust Valve for Honda CRF450R 2002-2006 VES002
WISECO
$49.95If you're running a CRF450R at the edge of its limits—whether on the track or in the dirt—valve wear is a silent performance killer. The Wiseco VES002 exhaust valve eliminates that vulnerability with advanced surface treatments that cut friction, resist...09260258- SKU:
- 09260258
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
$49.95 -
Wiseco Exhaust Valve for 1993-2000 Honda XR600R VES004
WISECO
$66.95The Wiseco Exhaust Valve VES004 is engineered to withstand the extreme thermal and mechanical demands of high-performance riding. If you're pushing your XR600R to its limits, a worn or failing exhaust valve will cost you horsepower, reliability, and...09260260- SKU:
- 09260260
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$66.95 -
WSM Power Valve with Safety Link 010-497-01
WSM
$113.84Exhaust scavenging efficiency directly impacts horsepower delivery and throttle response—the WSM Power Valve with Safety Link optimizes backpressure across your entire RPM range to unlock gains you can feel. By dynamically tuning exhaust flow, this valve...09262253- SKU:
- 09262253
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- POWER VALVE
- UNITS:
- EACH
- RIDING STYLE:
- WATERCRAFT
$113.84 -
XCELDYNE Intake Valve XIVM13001
XCELDYNE
$198.35Stock intake valves limit your engine's breathing potential and cap horsepower gains from other modifications. The XCELDYNE Intake Valve XIVM13001 delivers measurable airflow improvements through advanced high-flow geometry, enabling your engine to...09260469- SKU:
- 09260469
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- SIZE METRIC:
- OVERSIZE (+1.00 MM)
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
$198.35 -
On Sale
XCELDYNE Exhaust Valve XEVM12001
XCELDYNE
MSRP: $160.58Now: $103.00Was: $160.58If you're chasing measurable gains in flow efficiency and engine responsiveness, the XCELDYNE Exhaust Valve XEVM12001 delivers the precision engineering that separates competitive builds from stock setups. The titanium construction paired with high-flow...09260490- SKU:
- 09260490
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
- SIZE METRIC:
- STANDARD
- UNITS:
- EACH
MSRP: $160.58Now: $103.00Was: $160.58 -
XCELDYNE Exhaust Valve XEVM13000
XCELDYNE
$202.40If you're serious about extracting maximum flow and power from your engine, stock exhaust valves are leaving performance on the table. The XCELDYNE XEVM13000 delivers a measurable 15% flow increase through precision engineering and lightweight titanium...09260491- SKU:
- 09260491
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- TITANIUM
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
- SIZE METRIC:
- STANDARD
- UNITS:
- EACH
$202.40 -
On Sale
XCELDYNE Exhaust Valve XEVM33006
XCELDYNE
MSRP: $152.93Now: $98.00Was: $152.93The XCELDYNE XEVM33006 exhaust valve delivers measurable flow improvements where it matters most—at the seat, tip, and guide—allowing your engine to expel combustion gases more efficiently and unlock additional horsepower. The titanium construction and...09260505- SKU:
- 09260505
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- PRODUCT NAME:
- VALVE
- SIZE METRIC:
- STANDARD
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- TITANIUM
MSRP: $152.93Now: $98.00Was: $152.93Qty in Cart: 0Quantity:Price:MSRP: $152.93Now: $98.00Was: $152.93Subtotal: -
XCELDYNE Valve Locks - Exhaust XLOM45801
XCELDYNE
$38.18Valve lock failure at high RPM is a catastrophic risk that can destroy your engine in seconds. XCELDYNE Valve Locks eliminate this danger with precision engineering that keeps your keepers locked solid, even under extreme rpm conditions. Purpose-built...09260520- SKU:
- 09260520
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- PRODUCT NAME:
- LOCK
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- SET OF 4
$38.18Qty in Cart: 0Quantity:Price:$38.18Subtotal: -
XCELDYNE Intake Valve Springs PSIMX1905
XCELDYNE
$75.57If you're serious about extracting maximum horsepower from your engine, valve spring selection directly impacts your cam's ability to perform. The XCELDYNE Intake Valve Springs PSIMX1905 deliver the low-drag efficiency racing demands, allowing your...09260637- SKU:
- 09260637
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- SPRING
- TYPE:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$75.57Qty in Cart: 0Quantity:Price:$75.57Subtotal: -
XCELDYNE Intake Valve Springs PSIMX2104
XCELDYNE
$75.57If you're running a high-revving engine with titanium valves, valve spring performance directly impacts your peak horsepower and reliability under sustained boost or cam aggression. The XCELDYNE Intake Valve Springs PSIMX2104 are engineered with a...09260643- SKU:
- 09260643
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VALVE
- PRODUCT NAME:
- SPRING
- UNITS:
- PAIR
$75.57 -
XCELDYNE Exhaust Valve Springs PSIMX2401
XCELDYNE
$75.57If you're serious about extracting maximum horsepower from your engine, valve spring selection directly impacts your cam's ability to perform. The XCELDYNE Exhaust Valve Springs PSIMX2401 deliver the low-drag design racers demand, allowing your...09260647- SKU:
- 09260647
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VALVE
- UNITS:
- PAIR
$75.57 -
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: $15.53Qty in Cart: 0Quantity:Price:MSRP: $15.53Now: $10.00Was: $15.53Subtotal: -
On Sale
KIBBLEWHITE Valve Seal - 4.5mm - Viton 80-80710
KIBBLEWHITE
MSRP: $17.45Now: $15.71Was: $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
MSRP: $17.45Now: $15.71Was: $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 -
On Sale
KIBBLEWHITE Valve - Intake - Tensilite 40-41612T
KIBBLEWHITE
MSRP: $92.51Now: $83.26Was: $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
MSRP: $92.51Now: $83.26Was: $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:
