Use For CAT 773D 773E 775E Dump Truck Pump GP-GEAR High Quality Gear Pump Construction Machinery Aftermarket Parts Part 244-3304 10R-7980 2443304 10R7980

Precisely fit for CAT 773D 773E 775E, matching part numbers 244-3304 10R-7980 2443304 10R7980, fully aligned with the hydraulic parameters of the whole machine

• System Pressure: The main relief valve setting pressure is 35 MPa (357 kg/cm²), suitable for the high-pressure hydraulic system of the entire machine, ensuring sufficient power output for digging, swing, traveling and other key operations.
• Structure Type: Adopts a slide valve type multi-section main control valve, integrating multiple hydraulic control branches such as digging circuit, swing circuit and traveling circuit, supporting synchronous adjustment of compound actions (e.g., simultaneous boom lifting and bucket tilting).
• Control Method: Equipped with Load-Sensing Control System. Precise hydraulic control of boom lifting/lowering, arm extension/retraction, and machine swing/traveling is realized through the joystick, with fast and sensitive operation response.
• Applicable Models: Custom-made for CAT 773D 773E 775E excavators, fully matching the hydraulic parameters of its dedicated hydraulic pump, actuators (cylinders, swing motors, travel motors).
• Core Part Numbers: 244-3304 10R-7980 2443304 10R7980 (corresponding to spool/valve body components of different control circuits such as digging circuit and swing circuit).

• Specifically designed for CAT 773D 773E 775E excavators, matching the 244-3304 10R-7980 2443304 10R7980 series part number, and perfectly compatible with the  pump

• The HPV160 variable displacement pump structure allows for on-demand displacement adjustment, balancing operational power and energy consumption control.

• Suitable for heavy-duty working conditions, ensuring stable flow and pressure output under high pressure environments, guaranteeing power for heavy-duty operations.

• The pump core and valve body are made of wear-resistant materials, adapting to harsh working environments and offering high durability.

• An integrated pressure compensation valve improves the smoothness of combined movements (such as bucket + boom linkage).

• Maintenance Guidelines: 
  • To prevent valve core jamming leading to slow single-action operation (valve orifice and filter element need to be cleaned)
  • To prevent solenoid valve coil failure causing the entire vehicle to stop operating (this can be checked by resistance value testing).

Guangzhou Tieqi Engineering Machinery Co., Ltd. ("IRON CAVALRY")

Location & Overview: Strategically located in Guangzhou's Huangpu District, approximately an hour from Baiyun International Airport, Tieqi has been a dedicated specialist in engineering machinery hydraulics for nearly 15 years.

Our Core Values

Driven by our core values of "Pragmatism and Progress," we are committed to delivering practical solutions and upholding our responsibilities. This principle-driven approach defines all our operations and client partnerships.

Technical Leadership & Standards

In China's excavator hydraulic assembly sector, our efficient execution and rigorous approach to manufacturing every product to meet over 95% of original performance specifications have built widespread trust.

For large items, we use sturdy plywood crates secured with metal fasteners for added stability. Inside, the products are cushioned with bubble wrap and secured with wooden braces, while special attention is given to protecting vulnerable parts. Externally, the crates are reinforced with high-strength PET plastic strapping and wrapped in highly waterproof black film.