TRX400EX / 400X / XR400R Kibblewhite Head Rebuild Kit

TRX400EX / 400X / XR400R Kibblewhite Head Rebuild Kit

Regular price$279.99
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Honda TRX400EX / 400X / XR400R Kibblewhite Complete Cylinder Head Rebuild Kit

🛠️ Bring your Honda 400 motor back to life with this complete Kibblewhite head rebuild kit. Designed for durability and high-RPM performance, this kit includes everything needed to refresh your valvetrain using top-tier Kibblewhite components.


✅ What’s Included:

  • Kibblewhite Lightweight Racing Valve Spring Kit

  • Kibblewhite Black Diamond™ Intake & Exhaust Valves

  • Kibblewhite Bronze Valve Guides

  • Kibblewhite Viton Valve Stem Seals

  • Valve Keepers


📦 Fitment:

This kit is compatible with all model years of:

  • Honda TRX400EX (1999–2008)

  • Honda TRX400X (2009–2014)

  • Honda XR400R (1996–2004)

Full Fitment List (25 models total):

  • 1996–2004 Honda XR400R

  • 1999–2008 Honda Sportrax 400 TRX400EX 2x4

  • 2009–2014 Honda TRX400X 2x4


🛡️ Warranty Info:

All Kibblewhite components are backed by a limited manufacturer’s warranty against defects in materials and craftsmanship. Professional installation strongly recommended.

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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