803004137 CBGj3125 Working Pump for XCMG Wheel Loader – Genuine Gear Pump​

803004137 CBGj3125 Working Pump — Genuine XCMG Wheel Loader Hydraulic Gear Pump

The working pump (Part No. 803004137 / Model CBGj3125) is the core hydraulic power source in XCMG wheel loader working device hydraulic system . As a member of the CBGj3 series high-pressure fixed-displacement gear pump​ manufactured by Jinan Hydraulic Pump Factory and other leading Chinese hydraulic suppliers, it converts engine mechanical power into hydraulic flow to drive the loader's boom lift, bucket tilt, and steering circuits .

Per overseas B2B platform listings, part No. 803004137 / CBGj3125 is explicitly cataloged as the working pump for XCMG LW300F wheel loader​ . Additional cross-references extend its application to LW300N, ZL30G, and ZL50G​ XCMG loader platforms .

Key Features

• XCMG-Cataloged Part​ — Part No. 803004137, Model CBGj3125, brand XCMG, original spare part

• CBGj3 Series High-Pressure Gear Pump​ — Third-generation improved high-pressure gear pump, 20 MPa rated / 25 MPa peak

• 125 mL/r Displacement​ — Medium displacement in the CBGj3 family, balancing flow and power for 3-ton class loaders

• Double Axial Clearance Auto-Compensation​ — Ensures high volumetric efficiency (≥92%) and low wear under high pressure

• Heavy-Duty Build​ — High wear-resistant gears, bearings and seals; strong impact resistance, good anti-pollution performance, low noise

• CBG Series Interchangeable Mounting​ — Installation dimensions interchangeable with traditional CBG series for easy upgrade replacement

• Quality Certified​ — CE & ISO9001:2000 certified

• Brand New, Export Ready​ — Supplied brand new, wooden box packaging, 100 units/month production capacity