Kibble White 09263369 Valve stem sealRef : KIBW00111A / 09263369

Kibblewhite Valve Guide Seal – Manufacturer Ref: 80-80710

Replace your guide seals with a part designed to withstand the demands of off-road practices. This Kibblewhite seal is moulded from 100% solid Viton®, a material known for its resistance to oils, fuels, and high temperatures encountered in enduro, motocross, and quad bikes. Part manufactured in the United States and designed to meet or exceed OEM specifications.

• Application: intake and exhaust
• Stem Diameter: 4.50 mm
• Outer Diameter: 0.370" (~9.40 mm)
• Length: 0.331" (~8.41 mm)
• Recommended Use: compatible with Kibblewhite spring kits — it is imperative to use these seals with Kibblewhite kits due to spring clearances

Designed for high-revving engines that endure severe conditions, this seal limits lubricant leakage along the valve stem while maintaining the necessary mobility for crisp engine response. Particularly suitable for YAMAHA YFZ 450 RSE (2020), YFZ 450 R (2020), and WR 450 F (DJ03) (2015) models, as well as many 450 cc machines used for competition or leisure.