The Kubota 00407863 valve seat is a genuine OEM component designed for various Kubota D and V series diesel engines. This critical engine part ensures a proper seal for the engine valves, maintaining compression and combustion efficiency. With an outer diameter of 30mm, an inner diameter of 18mm, and a height of 6mm, it is engineered to precise specifications for reliable fitment and long-lasting performance in models such as D1005, D1105, D1305, D1503, D1505, D1703, D1803, V1505, V1903, V2003, V2203, V2403, V2607, and V3307.