Caterpillar 305.5E2 - 306E2 - 307E2 Special Hydraulic Main Pump Assembly For Excavators

Precise model matching, direct installation without modification
Specifically developed for Caterpillar E2 series 7-ton small excavators, the spline shaft size, valve body interface, and regulator pressure parameters are all consistent with the original factory specifications. There is no need to modify the piping or install the support bracket. After delivery, it can be directly installed on the vehicle, saving on on-site disassembly, installation, and debugging time.

The oil pressure output is stable, restoring the original factory's excavation performance.
The core piston and cylinder have undergone precise grinding, and the pressure curve of the regulator strictly conforms to the original factory's settings. During compound actions and continuous excavation operations, the oil pressure output of the equipment is stable, eliminating faults such as insufficient excavation force and slow lifting of the arm, ensuring that the small excavator can continue to work efficiently in earthwork and crushing conditions.

Strict selection of components, resistant to impact and suitable for harsh working conditions on construction sites
The pump housing base is made of high-strength material, and is equipped with a high-pressure sealing component. It has strong resistance to high temperatures and impacts; it can adapt to the dusty and alternating cold and hot working environments on construction sites, reducing the probability of oil leakage and internal leakage in the later stage, prolonging the overall service life of the hydraulic pump, and reducing the need for repeated maintenance.

Highly cost-effective maintenance replacement parts, effectively reducing maintenance costs
Compliant with the performance standards of original factory components, it can completely replace the expensive original factory pumps; at the same time, by optimizing the assembly for the pain point of regulator failure in old pumps, the failure rate is even lower. It is highly suitable for repair shops and second-hand excavator refurbishment businesses, allowing for control of maintenance budgets while ensuring the reliability of equipment operation.