The John Deere Hitachi 46448651 Hydraulic Oil Inlet Filter is a new old stock (NOS) part designed for use with John Deere and Hitachi equipment. This filter is specifically made to fit the hydraulic oil inlet of these machines, providing a reliable and efficient way to filter out impurities and contaminants. With the Hitachi brand known for quality and durability, this filter ensures that the equipment continues to operate smoothly and effectively.