The Hatz 1919701 is a genuine OEM fuel filter designed to provide superior filtration for Hatz 1B20, 1B30, 1B40, 1B50, 1D42, 1D50, 1D81, and 1D90 diesel engines. This essential component effectively removes contaminants from the fuel, protecting sensitive engine parts and maintaining efficient fuel system operation. With a height of 51 mm, an outer diameter of 45 mm, and an M16x1.5 thread, it ensures a precise fit and reliable performance for critical engine applications.