Hydraulic Gear Pump 803013093 JHP21000010 – Direct Replacement for XCMG Wheel Loaders

Hydraulic Gear Pump 803013093 JHP21000010 xcmg wheel loader

Product Overview

This hydraulic gear pump, identified by part numbers 803013093 and JHP21000010, is a direct-fit, high-performance replacement unit designed specifically for XCMG wheel loader hydraulic systems. Engineered to restore original lifting, steering, and attachment response, this pump delivers consistent flow under variable loads, reduces cavitation risk, and extends fluid life through precision-machined gear clearances.

Key Features at a Glance

• OEM-equivalent fitment for XCMG loaders (ZL series and newer models)

• Bidirectional rotation capability (clockwise standard, counter-clockwise optional)

• Forged gear pairs with hardened tooth profiles for wear resistance

• High-pressure shaft seal – nitrile rubber compound, rated for -20°C to +100°C

• SAE J744 standard mounting flange – easy bolt-on replacement without adapter plates

• Dynamic balancing reduces vibration and bearing stress at high RPM

General Identification

Temperature & Environmental Limits

Detailed Functional Description

This gear pump operates on the external meshing principle, where two identical gears rotate in opposite directions within a close-tolerance housing. Fluid is trapped between gear teeth and the housing wall, then carried from the inlet to the outlet side. The 803013093 / JHP21000010 pump features:

• Pressure-balanced wear plates that automatically adjust to axial clearance changes, maintaining high volumetric efficiency even after 2000+ operating hours.

• Double-lip shaft seal with a drainage slot to prevent contamination of the bearing chamber – critical for XCMG loaders working in dusty or wet conditions.

• Heat-treated gear tips (HRC 58-62) that reduce scuffing during cold starts and momentary pressure spikes.

This pump is not a remanufactured unit – it is produced with new blanks and certified to meet or exceed OEM pressure-cycling durability tests (tested to 1.5 million cycles at 210 bar).

Compatibility & Cross-Reference

This pump directly replaces XCMG original part numbers 803013093 and JHP21000010. It is also cross-compatible with certain Linde, Bosch Rexroth, and Danfoss gear pump mounts, but always verify the flange pilot diameter and shaft spline count before ordering.