A9060531532
Exhaust Valve Seat Ring OM904 Euro 3
Detroit Diesel

This exhaust valve seat ring for OM904 Euro 3 engines features a height of 8.10 mm, with an inner diameter of 31 mm and an outer diameter of 40.57 mm, constructed from polyester material to withstand demanding operational conditions. Its primary function is to provide a durable sealing surface for the exhaust valve, ensuring gas tightness under high temperatures and pressures typical of heavy-duty diesel engines. The slightly increased outer diameter compared to earlier versions helps optimize sealing performance and durability. Proper seating of this ring is essential for maintaining compression, reducing emissions, and preventing valve or head damage. When replacing worn or damaged seat rings, sourcing from a trusted supplier like Source One Parts Center ensures compatibility, quality, and long-term reliability necessary for demanding engine applications.