The retaining screw for the fuel injection pump (code K 55022) plays a crucial role in securing the injection pump’s components in place, ensuring stability and preventing unwanted movement during engine operation. Made from high-strength materials, this screw is engineered to withstand high pressure, vibrations, and thermal expansion. A properly secured fuel injection pump ensures consistent fuel flow and engine efficiency. Regular inspections and proper torque application during maintenance are essential to avoid loosening or wear, helping to sustain the long-term functionality and reliability of the injection system.