The Donaldson P550120 is a high-quality spin-on fuel filter designed to provide efficient filtration for various agricultural and construction machinery. Featuring an M16x1.5 thread, an outer diameter of 93 mm, and a length of 121 mm, this genuine Donaldson filter ensures optimal engine protection by effectively removing contaminants from the fuel system. It is a direct equivalent for Caterpillar 1R0750 and Perkins 26560201 fuel filters, and is also cross-referenced as KRAMP-P550120.