Genuine OEM Kia Valve Spring, part number 2222103HA0. This essential engine component is responsible for closing the engine valves after they are opened by the camshaft, ensuring precise valve timing and optimal engine performance. It is located within the cylinder head, compressing and decompressing with each valve cycle. Manufactured from high-grade spring steel, it is designed to withstand continuous high-stress operation. Opting for a genuine OEM valve spring guarantees the correct spring rate and fatigue resistance, critical for reliable engine operation and preventing valve float or damage.