The valve seat for the crankcase vent, designated with code number K 16040, is a critical sealing interface within the ZV40/48 engine’s ventilation system. This component ensures a tight and secure fit for the crankcase vent valve, which is responsible for regulating internal pressure and releasing gases safely. Made from wear-resistant materials, the valve seat withstands constant exposure to heat and vapors, maintaining efficiency and preventing leakage. Its function is essential not only for engine performance but also for maintaining environmental compliance by minimizing emissions from the crankcase.