The Donaldson P550904 is a genuine spin-on fuel filter designed for efficient fuel filtration in agricultural, construction, and industrial machinery. Featuring a 10-micron efficiency rating, it effectively removes contaminants to protect sensitive engine components and ensure optimal fuel system performance. This high-quality filter has an outer diameter of 76 mm, a length of 121 mm, and an M16 x 1.5 thread. It is a direct equivalent to Caterpillar 1R0750 and numerous other OEM part numbers, making it a versatile replacement option.