A similar appearance does not by itself mean that a hydraulic part or attachment is compatible. Along with the machine make and model, check the serial number, part number, connection dimensions, operating pressure, flow requirement and return-line details. Clear photographs showing the label and connection points of the existing component help the initial review. For attachments, machine class, lifting capacity, pin diameter, centre dimensions and quick-coupler system must also be assessed.

An incorrect choice can cause loss of performance, overheating, leaks or damage to machine components. The intended use and working conditions should therefore be shared before a quotation or order. Compatibility should be assessed using documented machine and part information, while installation, pressure adjustment and initial operating checks should be completed by qualified personnel.