When your machinery demands the best, don't compromise. We specialize in providing high-quality, reliable replacement parts for your Caterpillar equipment. Specifically, for the CAT374F and CAT390F excavators, we offer the essential hydraulic pump, also known as the piston pump or main pump. This critical component, with the part number 369-9655, is a perfect match for your machine's demanding hydraulic system. Investing in a quality hydraulic pump ensures optimal power, precision, and efficiency, minimizing downtime and keeping your project on schedule.

At Shandong Jufengyuan, we understand the complexities of sourcing the right components for a diverse fleet. Our extensive inventory goes beyond just Caterpillar. We are a leading supplier of Sandvik Parts, Atlas Copco Parts, Epiroc Parts, Cummins Parts, Deutz Parts, and, of course, Caterpillar Parts. Our commitment extends to providing parts for Montabert Parts, Furukawa Parts, Komatsu Parts, and Hitachi Parts, ensuring that no matter the brand, we have you covered.

From Volvo Parts and Liebherr Parts to Hyundai Parts, Metso Parts, Sany Parts, and XCMG Parts, our product line is designed to meet the rigorous demands of the global construction and mining industries. Whether you are searching for a hydraulic hose replacement, a new track shoe, or a complete filter kit, our team can help you find the correct heavy machinery component. Our expertise in excavator maintenance and engine repair ensures you get more than just a part—you get a solution.

Understanding the key components of your equipment is crucial for effective maintenance and repairs. Here are some common parts from our inventory explained:

• Pilot Valve (先导阀 / Пилотный клапан): The pilot valve controls the flow of pilot oil, which in turn directs the main hydraulic oil flow to different parts of the machine. It is typically installed in the operator's cab and is linked to the joysticks and pedals.

  Example: Sandvik DD321 drill rig pilot valve.

• Swing Motor (回转马达 / Мотор поворота): The swing motor is a hydraulic motor that provides the power for the excavator's house to rotate on the undercarriage. It is located on the machine's superstructure.

  Example: Atlas Copco EC180D excavator swing motor.

• Solenoid Valve (电磁阀 / Электромагнитный клапан): A solenoid valve is an electrically controlled valve that opens or closes to control the flow of a fluid or gas. They are essential for a wide range of functions, including hydraulic and pneumatic systems.

  Example: Epiroc ROC L8 drill rig solenoid valve.

• Boom Cylinder (动臂油缸 / Цилиндр стрелы): The boom cylinder is a hydraulic cylinder responsible for raising and lowering the excavator's boom. It is a large, powerful cylinder mounted to the machine's body and boom arm.

• Final Drive (终传动 / Бортовой редуктор): The final drive is a gear assembly that transfers power from the hydraulic travel motor to the tracks, allowing the machine to move. It is located at the end of the track frame.

• Track Roller (支重轮 / Опорный каток): A track roller, or bottom roller, supports the weight of the excavator's upper structure and provides a rolling surface for the track chain. It is located along the bottom of the track frame.

• Turbocharger (涡轮增压器 / Турбонагнетатель): A turbocharger is a forced induction device that increases an internal combustion engine's efficiency and power by forcing extra air into the combustion chamber. It is mounted on the engine's exhaust manifold.

• Injector (喷油器 / Форсунка): An injector is a valve that atomizes fuel and sprays it into the engine's combustion chamber. It is a critical component of the engine's fuel system.

• Hydraulic Pump (液压泵 / Гидравлический насос): The hydraulic pump converts mechanical energy into hydraulic energy, providing the pressurized fluid necessary to power the machine's movements. It is the heart of the hydraulic system, located near the engine.

• Seal Kit (密封件套件 / Комплект уплотнений): A seal kit contains various seals, O-rings, and gaskets needed to prevent fluid leaks in a hydraulic cylinder or other component. They are used in maintenance and repair to restore a part's sealing integrity.

Whether you need original OEM parts or high-quality aftermarket options, our inventory of heavy machinery components is unmatched. From undercarriage parts for your Caterpillar crawler to seals and gaskets for Komatsu hydraulic cylinders, we are your one-stop solution. Our direct-from-the-source model ensures competitive pricing and genuine quality for all your excavator spares. We are Shandong Jufengyuan, committed to being a reliable construction equipment parts supplier for the global market.