Genuine OEM Kia Oil Pump Snap Ring, part number 456533BAA0. This small but critical retaining ring is designed to secure various components within the transmission's oil pump assembly, preventing axial movement and ensuring proper alignment. It plays a vital role in maintaining the integrity and function of the oil pump, which is responsible for circulating transmission fluid. Using a genuine OEM snap ring guarantees the correct dimensions, material strength, and spring tension for reliable long-term retention and optimal transmission performance.