Genuine OEM Kia Output Shaft Rear Spacer, part number 4325724250. This precision-engineered spacer is located at the rear of the output shaft within the transmission assembly. Its primary function is to provide accurate spacing for various output shaft components, ensuring correct alignment and preventing excessive play. Choosing a genuine OEM spacer guarantees the exact thickness and material properties required for maintaining critical tolerances and the smooth operation of the transmission's rotating parts.