The Yanmar 129A23-55800 is a genuine OEM fuel filter designed to ensure clean fuel delivery and optimal engine performance. This essential maintenance part is compatible with various Yanmar 3TNV and 4TNV series diesel engines, including 3TNV70, 3TNV76, 4TNV84, 4TNV88, 4TNV94, 4TNV98, and 4TNV106. It also fits a wide range of John Deere compact utility tractors, such as the 1023E, 1025R, 2025R, 3025E, and 4044R models, where Yanmar engines are utilized. With a height of 51 mm and an outer diameter of 48 mm, this filter effectively removes contaminants from the fuel system, protecting sensitive engine components and maintaining fuel efficiency. Replace regularly to prevent fuel system issues and extend engine life.