1830711C1
INSERT, EXHAUST VALVE SEAT
Navistar International®

Exhaust valve seat insert is a component of the engine's internal components that is installed in the cylinder head to provide a seating surface for the exhaust valve. It is designed to withstand high temperatures and pressure generated during the combustion process. The exhaust valve seat insert is typically made of hardened steel or other durable materials to ensure long-lasting performance. Its main function is to prevent exhaust gases from leaking out of the combustion chamber and to maintain proper compression in the engine.