279-4699 RD118-69400 PSVL-54CG Excavator Parts E304C KX151 KX155 KX161 Hydraulic Gear Pump pilot Pump Main Pump

279-4699 RD118-69400 PSVL-54CG Excavator Parts E304C KX151 KX155 KX161 Hydraulic Gear Pump pilot Pump Main Pump

Product Description

The hydraulic pump pre-control pump of the GVO brand's hydraulic power E304C KX151 KX155 KX161 excavator main pump is suitable for various types of hydraulic components.
High-quality pilot pump, direct sales from the manufacturer, prompt delivery, and reliable after-sales service.

Product Description

This gear pump, designed for E304C, KX151, KX155, and KX161 small excavators, is a crucial power accessory in the hydraulic supply circuit of the entire machine. It usually performs the functions of primary oil supply and supplementary oil pressurization, providing stable and sufficient primary oil pressure to the control handle and control valve group, directly determining the control feel and response speed of each action of the excavator.

The main body shell of the pump is made of high-strength aluminum alloy and is formed by a single-piece die-casting process. The raw material undergoes aging treatment to eliminate internal stress, and then is precisely machined by a five-axis CNC machine to ensure the positional tolerance accuracy of the pump cavity, effectively avoiding the problems of shell deformation and oil leakage from the oil ports when the pump shell is subjected to oil pressure for a long time.

The internal transmission gears are made of high-quality alloy steel and undergo a complete processing procedure including carburizing, quenching, and precise gear grinding. The tooth surface has high hardness and smoothness, and the gear meshing clearance is strictly controlled, significantly reducing friction loss during high-speed rotation of the gears and reducing tooth surface wear, cracking, and scratches; the drive spline shaft is also strengthened with wear-resistant treatment, which can withstand the torque impact caused by frequent forward and reverse rotations and is less likely to experience spline flattening, slipping, or idle rotation. 

The entire set of built-in sealing accessories uses rubber sealing materials that are resistant to aging, can withstand high pressure, and are compatible with various hydraulic oil types. They can adapt to long-term high-temperature working environments, slow down the hardening and cracking of sealing components, and effectively improve the common problems of oil leakage and oil seepage at the pump body joint surface and the position of the rotating shaft.

The GVO brand is a manufacturer of hydraulic components. We mainly produce the most comprehensive range of pilot pumps, gear pumps, relief valves, hydraulic pumps, electrical components, hydraulic parts, engine assemblies, traveling assemblies, rotating assemblies, distribution valves, and other components.

We are factory direct sellers without any middlemen profiting from price differences. The quality is definitely the best for you because we are the ones who produce them. We cannot tarnish our reputation. The prices are also the most favorable for you. There is a stable delivery speed.

We value every customer and provide you with the best service. We offer pre-sale, in-sale, and after-sale guarantees. Any problems will definitely be resolved for you. We are always available to serve you.