The ROP Shop replacement Raw Sea Water Pump for Volvo Penta 3858938, 3858115, 827247 Boat Engine Impeller. Specs - Pulley Diameter: 4 5/8". Inlet Port: 1". Outlet Port 1". Refer to images 2 & 3 for more information. Includes - (1) Water Pump; comes as shown in the first image. Fits/For: Volvo Penta 8.1L, DPX375 & DPX420 series engines.
