A4570531332
Outlet Cylinder Head Valve Seat Ring OM457 EEV
Detroit Diesel

This steel seat ring for the cylinder head exhaust valve is designed to provide a durable and precise sealing surface in the OM457 EEV engine. With a width of 7.80 mm and an outer diameter of approximately 43.09 mm, it fits into the valve seat area securely, helping to contain combustion gases and prevent leaks. Made from high-grade steel, this ring withstands the extreme heat and pressure typical of exhaust environments. Proper seating of this ring ensures optimal exhaust flow, which is essential for engine efficiency, power, and emissions control. Regular replacement of worn or damaged seat rings maintains engine integrity and prevents performance degradation. This component is a key part of the cylinder head assembly, supporting effective thermal management and emission standards. Source One Parts Center offers this essential part to keep your engine’s exhaust system operating reliably.