Genuine OEM Volkswagen Camshaft, part number 059109021DS. This camshaft is a crucial component within the engine that controls the timing and duration of the intake and exhaust valves. Its precisely shaped lobes actuate the valvetrain, dictating the engine's breathing and performance. This is a new, production-level part. Genuine OEM camshafts are manufactured to exact tolerances for lobe profiles and bearing surfaces, ensuring optimal engine timing, performance, and longevity.