Genuine OEM Volkswagen Primary Shaft, part number 0CF311103P. This shaft is a critical component of the transmission system, responsible for transmitting rotational power from the engine's clutch assembly to the transmission's gear sets. It is precisely engineered with specific splines and bearing surfaces to ensure smooth engagement and efficient power transfer. Manufactured from high-strength steel, it is designed to withstand significant torque and operational stresses. Genuine OEM ensures exact fitment and material integrity for reliable drivetrain performance.