Kibblewhite Top End Service Kit – YFZ450 (2004–2009)

Complete top-end rebuild system for Yamaha YFZ450 models featuring White Diamond® stainless valves, a performance piston kit, and a race-grade spring and retainer set. Built to outperform OEM parts and handle high-RPM abuse with precision engineering and long-term reliability.

✅ What’s Included

• 3× Intake Titanium Retainers

• 3× Intake Chrome-Silicon Valve Springs

• 3× Intake H.T. Steel Base Washers

• 2× Exhaust Titanium Retainers

• 2× Exhaust Chrome-Silicon Valve Springs

• 2× Exhaust H.T. Steel Base Washers

• 2× Intake Outer White Diamond® Valves

• 2× Intake Center White Diamond® Valves

• 2× Exhaust White Diamond® Valves

• 3× Intake Viton® Seals

• 2× Exhaust Viton® Seals

• 1× High-Performance Piston Kit (2618 Alloy)

• 1× Top End Gasket Kit

⚙️ Key Features & Benefits

• Complete Rebuild Solution – Pistons, valves, springs, and gaskets in one kit

• White Diamond® Valves – Stainless steel construction for strength & longevity

• Performance Piston – Forged from 2618 aluminum with skirt coating for reduced friction

• Titanium Retainers & Dual Springs – Handles aggressive cam profiles

• Precision Fitment – Designed as a matched system (not for OEM mixing)

• Made in the USA – Premium quality for racing and off-road reliability

📦 Compatibility

• Yamaha YFZ450 (2004–2009)

Not compatible with OEM pistons, valves, or clips.

🛡️ Warranty & Installation

Manufacturer-backed warranty included.
Professional installation required for proper ring gap, torque, and cam timing setup.

💲 Price: $736.36 (Suggested Retail)
🔢 SKU: 0926-3399 / 80-82700
🏷️ Brand: Kibblewhite