Product Overview This is an original-specification Kawasaki swash-plate variable-displacement axial piston pump, model HK3V63DTP-OE02, specifically designed for SK135SR, SK115SR and SK120-5 medium excavators. Featuring a tandem variable piston pump configuration coupled with a pilot gear pump, it serves as the machine's primary hydraulic power source, delivering stable, reliable pressure oil to the boom, arm, bucket and travel circuits. Technical Specifications Pump Model