Kibblewhite Intake Valve TRX400EX XR400R (Black Diamond 33mm)
Kibblewhite Black Diamond™ Intake Valve – Honda TRX400EX / TRX400X / XR400R (33mm EV8 Stainless)
🛠️ Upgrade your top end with this Kibblewhite Black Diamond™ intake valve, precision CNC-machined from one-piece EV8 stainless steel forgings. Designed for serious off-road performance, these valves offer superior wear resistance, excellent flow characteristics, and outstanding durability in extreme environments.
✅ Features:
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Black Diamond™ Series – made from EV8 stainless steel
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CNC-machined one-piece forging
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German nitroneg surface infusion process
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Wear-, friction-, and corrosion-resistant
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Computer-optimized profiles using Finite Element Analysis (F.E.A.)
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Tested on computerized flow benches
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Made in the USA
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Superior to chrome/nickel plated valves in durability
📦 Fitment:
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Honda TRX400EX Sportrax: 2000–2005
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Honda TRX400EX FourTrax: 1999
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Honda TRX400X: 2009
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Honda XR400R: 1996–2004
📐 Specs:
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Application: Intake
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Series: Black Diamond™
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Head Diameter: 33.00 mm (1.300")
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Stem Diameter: 5.50 mm (0.2156")
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Length: 102.6 mm (4.040")
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Tulip Angle: 20°
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Material: EV8 Stainless Steel
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Units: Sold Each
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Weight: 0.13 lbs
🛡️ Warranty Info:
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Kibblewhite standard manufacturer warranty applies
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Made in the USA – engineered for performance and longevity
We ship next day most of the time. Modquad parts are shipped Monday-Thursday. Engine Kits are 3-5 business days.
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