Without specific product documentation, it's difficult to determine the exact displacement value precisely. However, for hydraulic piston pumps used in Caterpillar tractors of this class, the displacement could typically range from several tens to a few hundred cubic centimeters per revolution (cm³/rev). This displacement value determines the volume of hydraulic fluid the pump can move in one full rotation of its shaft.
Operating Pressure
These pumps are designed to operate in demanding environments typical of heavy-duty tractors. The maximum operating pressure is usually quite high to power various hydraulic functions such as steering, lifting, and other attachments. A common range for such pumps might be between 200 bar (20 MPa) and 400 bar (40 MPa), but the actual maximum operating pressure for the 187-9090/1879090 pump would need to be confirmed from Caterpillar's official specifications.
