The Donaldson P550428 is a high-quality spin-on full-flow lube filter designed to provide superior engine protection. Featuring a robust cellulose media, it effectively captures contaminants down to 30 microns with 99% efficiency. This filter includes an anti-drainback valve and a bypass valve set at 172 kPa (25 PSI) to maintain oil flow during cold starts or high pressure. With an outer diameter of 93.7 mm and a length of 174.5 mm, it uses a 1-16 UN thread size and a gasket with 71.9 mm OD and 62.5 mm ID. It is a direct replacement for various OEM part numbers, ensuring wide compatibility across agricultural and construction machinery.