Genuine OEM Kia Transmission Valve Body Adjust Screw, part number 462593B000. This precision component is crucial for regulating fluid pressure and flow within the transmission valve body, directly impacting gear engagement and shift quality. It is located within the complex hydraulic assembly of the transmission. Choosing a genuine OEM adjust screw ensures the correct thread pitch, material hardness, and precise calibration required for the transmission's intricate operation and long-term reliability.