... MFB of MFB5, MFB10, MFB20, MFB29 Vickers Hydraulic Piston Pump motor, Vickers Hydraulic Piston Pump motor PVB of PVB5, PVB6, ... it's interchangeable with original Vickers of the same model.Vickers hydraulic piston motor: Vickers MFB fixed displacement piston motor, ... piston motor, range MVB5, MVB10, MVB20, MVB29. Vickers hydraulic piston pump: Vickers PVB variable displacement axial piston pump, range ...