Kibble White 09263190 Valve stem sealYAMAHA 250 YZ 250 F (CG40) - 2019Ref : KIBW00139A / 09263190

KIBBLEWHITE – Valve Guide Seal (manufacturer part no.: 80-82345) designed for cross cylinders. These valve seals are moulded from 100% solid Viton® and manufactured in the United States, providing resistance to the temperatures and oils encountered in off-road use. Ideal for maintaining the sealing of guides and limiting oil leaks around the valve stems.

• Applications: Intake and Exhaust
• Stem Diameter: Intake 5.00 mm / Exhaust 4.50 mm
• Outer Diameter (imperial): Intake 0.405 in / Exhaust 0.370 in
• Length: Intake 0.350 in / Exhaust 0.331 in
• Recommended Use: Recommended with Kibblewhite spring kits due to spring tolerances to ensure consistent fitting
• Universe: Cross — compatible with models such as YAMAHA YZ 250 F (2019, 250 cm³) and other machines with identical stem dimensions

Simple installation for engine preparations and routine maintenance: these seals help maintain consistent lubrication in the combustion chamber and contribute to the longevity of the valves when the RPM and off-road conditions are demanding. Check the dimensions before installation to ensure compatibility with your cylinder head.