shop Construction Machinery Parts Hydraulic Gear Pump 705-51-20070 for WA180 WA300-A WA320_Excavator Hydraulics, Diesel Engine, SKS Hydraulic

Type External gear pump (positive displacement).

Displacement ~45 cm³/rev (Typical for WA300-A/WA320 series; verified via Komatsu specs).

Rated Pressure 19.6 MPa (2,843 psi)

Peak Pressure 24.5 MPa (3,553 psi)

Rated Speed 1,600–2,200 rpm (matched to the loader’s engine speed).

Rotation Direction Counterclockwise (CCW) when viewed from the drive shaft end (standard for Komatsu).

Ports Inlet: SAE 12 (1.5" NPT); Outlet: SAE 10 (1" NPT)

Fluid Type Recommended: Komatsu AW-68 hydraulic oil (ISO VG 68).

Fluid Temperature Range -10°C to +80°C (14°F to 176°F)