Excavator Hydraulic Pump Assembly

The excavator hydraulic pump assembly works as the main power component in any digging machine, responsible for generating consistent pressure and flow to move the boom, arm, bucket and travel motor. When this part wears out, machines respond slowly, lose power or start leaking oil - that's why choosing a reliable replacement directly affects on-site efficiency.

 

At Yantai Dayun Machinery Parts, our hydraulic pump assemblies are built to match OEM dimensions and performance. Every internal part is machined to tight tolerances, with heavy-duty bearings and high-pressure seals that can stand continuous use on construction sites. This ensures the pump fits and performs like the original, without modification or extra machining during installation.

We supply complete pump assemblies for a wide range of excavator models from Hyundai, Doosan, Volvo, Kobelco, Sumitomo, CASE, JCB, Caterpiilar, Komatsu, Sany, XCMG, LIUGONG, Zoomlion...... Whether you run a small mini-excavator or a large machine for heavy digging, we have corresponding pump options to match your machine's requirements. Each unit is tested before shipping to ensure stable pressure output and consistent performance.

 

In real working conditions, a quality excavator hydraulic pump assembly reduces unexpected downtime and lowers long-term maintenance costs. Our designs resist wear in dusty, high-load environments, while keeping noise and internal leakage at a minimum. This makes them suitable for rental fleets, repair shops and construction teams looking for dependable, long-lasting parts.

We know how critical it is to get the right part quickly. Our warehouse keeps most common hydraulic pump assemblies in stock, allowing faster shipping to minimize your machine's downtime. If you aren't certain which pump fits your equipment, simply send your excavator model or original part number, and we will help you confirm the correct replacement.

• Stable pressure and flow improve the response and efficiency of digging and lifting movements
• Precise manufacturing ensures easy installation and reliable performance similar to original equipment
• Full model coverage supports most mainstream excavator brands used worldwide
• Robust internal structure extends service life even under heavy-duty working conditions
• Complete inspection and performance testing before delivery for consistent quality
• Yantai Dayun Machinery Parts has been supplying excavator components to global customers for more than 15 years. Our main products include hydraulic pump assemblies, final drives, control valves and other core parts for construction machinery. With large stock and mature quality control, we provide practical, cost-effective solutions for repair shops, fleet operators and equipment importers around the world.

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