The Donaldson P551285 is a high-quality spin-on lube oil filter designed to provide superior filtration for engines requiring an M20 x 1.5 thread. With an outer diameter of 93 mm and a length of 142 mm, this filter offers 99% efficiency at 25 micron, ensuring optimal engine protection. It features a bypass valve set at 2.5 bar and an anti-drainback valve. This filter is a direct replacement for Perkins 2654403 and Massey Ferguson 1076930M1, fitting a wide range of Massey Ferguson tractors and various Perkins engine series.