8L-3865: 38.9mm Inner Diameter Exhaust Valve Seat Insert

An Exhaust Valve Seat Insert is a part that is used in the cylinder head of an engine to provide a place for the exhaust valve to seal against. It is designed to fit into the cylinder head and provide a sealing surface for the exhaust valve to prevent combustion leaks and ensure proper engine performance. Attributes: • Withstands high pressure generated during combustion, preventing leakage and maintaining optimal engine performance • Designed to withstand high temperatures generated by exhaust gases, ensuring reliable performance Applications: An Exhaust Valve Seat Insert is used to provide a secure and leak-free fit for the exhaust valve used in the cylinder head.