The Donaldson P551054 is a high-quality spin-on fuel filter designed to provide efficient filtration for various heavy-duty engines. Featuring a 10-micron cellulose media, this filter ensures clean fuel delivery, protecting critical engine components from contaminants. It has an outer diameter of 93 mm, a length of 174 mm, and an M20 x 1.5 thread size. This genuine Donaldson filter is a direct equivalent for OEM part numbers such as Caterpillar 1R0750, Perkins 26560201, and John Deere RE509031, making it suitable for a wide range of agricultural, construction, and industrial machinery.