Los Angeles Heavy Equipment Hydraulic Pump Assembly: CAT 345, 349GC, 352 Main Pump for Sale - Tuesday, September 2, 2025

Los Angeles Heavy Equipment Main Pump Assembly: CAT 345, 349GC, 352 Excavator Hydraulic Pump for Sale - Tuesday, September 2, 2025

Looking for a reliable supplier? We are a direct factory source for high-quality, durable hydraulic parts, offering customized development and manufacturing services. We specialize in export trade and are your trusted partner for all your construction machinery part needs. Source directly from the manufacturer!


Unlocking Peak Performance: Caterpillar Excavator Hydraulic Pumps

In the demanding world of construction and mining, the performance of your heavy machinery is paramount. The hydraulic system is the powerhouse of any excavator, and at its heart lies the hydraulic pump. We are a leading supplier of premium Caterpillar Parts, including the essential Caterpillar hydraulic pump assembly for CAT 345, 349GC, and 352 models. Our parts are engineered to meet or exceed OEM specifications, ensuring your equipment operates with maximum efficiency and reliability on every job site. We understand the critical role of a well-functioning excavator main pump to achieve optimal digging force and swing speed.

Featured Product: CAT 345, 349GC, 352 Hydraulic Pump Assembly

Our featured product is the main hydraulic pump assembly for a range of modern CAT excavators. It's the ideal replacement part to restore your machine's power and precision. The unit is compatible with various models and comes with specific part numbers to guarantee a perfect fit and function.

  • Part Number: 550-4341 - Genuine quality replacement for CAT excavator hydraulic system.

  • Part Number: 566-8632 - High-performance main pump assembly for CAT 349GC and 352 excavators.

  • Part Number: 5668632 - Identical part number for the main pump, ensuring broad compatibility and easy searching for your CAT 352 parts or CAT 349GC parts .


Global Heavy Equipment Parts from a Trusted Partner

We are Shandong Jufengyuan, a premier supplier of heavy machinery parts. Our comprehensive inventory includes a wide array of high-quality components for leading brands. Whether you need an excavator track roller for a Komatsu PC200-8 or an undercarriage roller for a Hitachi EX400-5, we have the right part for you. Our main product lines include: Sandvik Parts, Atlas Parts, Epiroc Parts, Cummins Parts, Deutz Parts, Carterpillar Parts, Montabert Parts, Furukawa Parts, Komatsu Parts, Hitachi Parts, Volvo Parts, Liebherr Parts, Hyundai Parts, Metso Parts, Sany Parts, and XCMG Parts. We also offer a range of specific parts such as excavator swing gearbox , hydraulic fan pump , hydraulic cylinder seal kit , final drive motor , and excavator travel motor to keep your machinery running smoothly.

Our business goes beyond just sales. We are dedicated to providing a superior customer experience by offering reliable parts, global shipping , and competitive pricing on both new aftermarket parts and original equipment. We have a solid reputation in foreign trade export , serving clients worldwide with our quality-controlled products. We can also provide custom parts manufacturing for specialized projects, working directly with you as your trusted source factory .


Essential Components Explained

To help you better understand your machinery, here are some key components we supply:

1. Piston Shoe

The piston shoe is a small, but crucial, component found on the piston of a hydraulic pump. It slides along the swashplate, converting the rotational motion of the pump shaft into a reciprocating motion for the pistons. It is essential for generating hydraulic pressure. For example, in a Sandvik DP1500 drilling rig , the piston shoes are located within the hydraulic pump .
中文:活塞靴,位于液压泵活塞上,在 Sandvik DP1500 钻机液压泵中。
Русский: Поршневая обувь, на поршне гидравлического насоса, в гидравлическом насосе буровой установки Sandvik DP1500 .

2. Swash Plate

The swash plate is a tilted plate inside an axial piston pump that the piston shoes ride on. The angle of the swash plate determines the stroke of the pistons, controlling the output flow and pressure of the pump. A common application is in the Epiroc Boomer L2 C drilling jumbo 's hydraulic pump .
中文:斜盘,在 Epiroc Boomer L2 C 钻机液压泵内。
Русский: Наклонная шайба, внутри гидравлического насоса бурового комбайна Epiroc Boomer L2 C .

3. Cylinder Block

The cylinder block is a rotating component with multiple bores that houses the pistons in an axial piston pump. It is the heart of the pump's displacement mechanism. You can find this part in the hydraulic pump of an Atlas Copco SmartROC D65 rock drill .
中文:缸体,位于 Atlas Copco SmartROC D65 凿岩机液压泵内。
Русский: Блок цилиндров, в гидравлическом насосе буровой установки Atlas Copco SmartROC D65 .


Your Source for High-Demand Replacement Parts

Our focus is on providing a wide range of parts to keep your entire fleet operational. From a loader steering cylinder to a dozer transmission filter , we have you covered. We can assist you with an excavator undercarriage final drive , hydraulic cylinder rebuild kit , main hydraulic pump , excavator arm cylinder , hydraulic swing motor , and other critical components. Our extensive catalog includes parts for both older and newer models. Our experienced team can help you find the right parts, whether you need a Komatsu PC400 hydraulic pump or a Volvo EC480 excavator main pump .

Beyond our main product lines, we also offer custom hydraulic solutions , hydraulic pump repair parts , excavator engine parts , and hydraulic hose assemblies . We are your one-stop shop for all heavy machinery spare parts and are proud to be a trusted China spare parts supplier to a global market. Our commitment to quality and service sets us apart in the competitive landscape of construction equipment spares and aftermarket hydraulic components .

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