This Donaldson oil filter with a 3.82-inch diameter and 5.46-inch length is equipped with a 2-16 UN thread size and a 23-micron rating (Efficiency Beta 1000). It contains synthetic media, a bypass valve, and a gasket of 2.76-inch outside diameter and a 2.48-inch inside diameter. This oil filter fits Gradall 534B-6, 534B-8, 534B-9, 544, 544B models.