
Manufacturer Reference: 8400006-1
VERTEX exhaust valve made of steel, designed for the refurbishment of cylinder heads on Yamaha YZ400F / YZ426F models. Replacement part sold individually, intended for riders demanding a robust component for sealing and longevity of the exhaust system.
Made from steel, this valve is suitable for the thermal and mechanical stresses encountered in off-road engines. It is aimed at common maintenance operations: replacement during seat wear, maintenance strikes, or engine rebuilds. Its design adheres to cross usage, where reliability and strength are essential for track riding.
Product intended for workshops and motocross enthusiasts looking to replace a worn exhaust valve with a quality part. Check compatibility with your machine's model and year before ordering.