part 49598 Crankshaft, 1/2", (3.3 mm) 1CX025R Cat Pumps code 49598 Details Cat Pumps number49598 DescriptionCrankshaft, 1/2", (3.3 mm) 1CX025R Qty per pump1 Fits these pumps Cat Pumps 1CX 3 1CX013R1CX025R1CX050R