Genuine OEM Nissan Engine Valve Spring, part number 132111KC1A. This spring is a critical component within the engine's valve train system. It works in conjunction with other valve components to control the opening and closing of engine valves, ensuring proper combustion and exhaust cycles. The part is located within the cylinder head assembly. This valve spring is constructed from durable, high-strength steel designed to withstand the extreme temperatures and pressures of engine operation. Genuine OEM valve springs are manufactured to precise tolerances, ensuring consistent performance and longevity, which is crucial for maintaining engine health and preventing premature wear.