Kawasaki K3V63DTP-9N2B Hydraulic Piston Pump Assembly

The Kawasaki K3V63DTP-9N2B is a variable displacement axial piston pump designed for medium-sized hydraulic excavators. It features a tandem double pump configuration with an integrated pilot pump (DTP designation) providing a total main displacement of 63 cm³/rev per section. The pump operates at a maximum continuous pressure of 343 bar (34.3 MPa) and a peak pressure of 390 bar, with a rated speed up to 2700 rpm. Constructed with a cast iron housing and precision-machined rotating group, it utilizes a swash plate mechanism for flow control. This unit serves as the main hydraulic pump for 12 to 20-ton class excavators, converting mechanical input torque into high-pressure hydraulic flow for travel, swing, and implement circuits. The through-drive capability allows mounting of auxiliary gear pumps for fan drive or pilot systems. Installation requires verification of the nameplate code, port configuration, and shaft spline to match the specific machine application.