part 48839 Crankshaft, 1" (11.4 mm) (40G1I) Cat Pumps code 48839 Details Cat Pumps number48839 DescriptionCrankshaft, 1" (11.4 mm) (40G1I) Qty per pump1 Fits these pumps Cat Pumps Plunger pumps 3 66DX30G1I66DX35G1I66DX40G1I