Cometic 3218V Valve Stem Seal .265" ID Metal Jacket Yellow

The Cometic Gaskets 3218V is a precision-engineered metal jacket valve stem seal designed to provide superior sealing performance in high-performance and racing engine applications. This valve stem seal features a durable metal outer jacket with an inner sealing element that effectively controls oil consumption while maintaining proper valve guide lubrication.

Key Specifications:

• Inside Diameter (ID): .265 inches
• Outside Diameter (OD): .500 inches
• Seal Width: .635 inches
• Overall Height: 1.126 inches
• Metal jacket construction for enhanced durability
• Yellow color coding for easy identification

Cometic's metal jacket valve stem seals are engineered to withstand the extreme temperatures and pressures found in high-performance engines. The metal outer shell provides structural support and heat dissipation, while the precision-molded inner seal maintains consistent contact with the valve stem throughout the engine's RPM range. These seals are ideal for rebuilds, racing applications, and performance engine builds where reliability and oil control are critical.