1850162C1
Oversized Exhaust Valve Seat Insert
Navistar International®

An oversized exhaust valve seat insert is an internal engine component that is designed to replace the original exhaust valve seat insert in an engine cylinder head. It is larger in size than the original insert and is used to repair damaged or worn valve seats. The oversized insert is typically made of a harder material than the original insert to provide better durability and resistance to wear. It is installed using specialized tools and techniques to ensure proper fit and alignment with the engine's valve train.