The McCormick 4203379M91 is a genuine OEM fuel filter designed for a wide range of agricultural and construction machinery, including McCormick, Massey Ferguson, Valtra, Fendt, and Challenger models. This essential component ensures clean fuel delivery to the engine, protecting sensitive fuel system components from contaminants. With an outer diameter of 51 mm, an inner diameter of 20 mm, and a height of 95 mm, this filter provides reliable filtration for optimal engine performance and longevity. It is a direct replacement for various OEM and aftermarket cross-reference numbers.