07434-72202 07433-72203 Hydraulic Pumps Gear Pumps Steering Pumps D355C D85A-12 D155C-1 D135A-2 Bulldozer Excavator Parts

Product Description

The hydraulic pump pre-control pump of the GVO brand's hydraulic power D355C D85A-12 D155C-1 D135A-2 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 is specifically designed for the hydraulic systems of D355C, D85A-12, D155C-1, and D135A-2 bulldozers. It is an indispensable power transmission component in the entire machine's hydraulic circuit and can be used as a steering pump, speed change pump, or auxiliary working pump. It is responsible for smoothly delivering hydraulic oil, providing sufficient and stable oil pressure support for the bulldozer's steering control, gearshift of the transmission, and auxiliary hydraulic operations. It directly determines the operating feel, response speed, and overall operational stability of the bulldozer.

The pump body is made by casting high-strength ductile iron as a single piece, which has strong overall rigidity and can withstand frequent oil pressure impacts under high-pressure conditions without cracking or leaking. The internal transmission gears are made of alloy steel and undergo precise grinding, heat treatment, quenching, and grinding processing. The tooth surface has high precision and sufficient hardness, resulting in smooth gear engagement during operation, small hydraulic pulse fluctuations, and uniform and stable output flow. This effectively reduces the internal wear rate under high-pressure operations. The pump is equipped with high-quality skeleton oil seals and pressure bearings, which can withstand long-term high-temperature working conditions. The oil seal has excellent anti-aging and anti-hydraulic oil corrosion performance, effectively reducing shaft head oil leakage problems. Even if the equipment is continuously operated in dusty and highly vibrating open-air construction sites, it can still maintain a good sealing effect and extend the overall lifespan of the components.

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.