Genuine OEM Volkswagen Front Left Window Regulator Drive Unit, part number 2K0837039A. This essential component provides the power to operate the window regulator mechanism, allowing the window to move smoothly up and down. It is specifically designed for the front left door assembly. Weighing approximately 0.263 kg, this drive unit is built to factory specifications. Choosing a genuine OEM drive unit ensures correct electrical interface, precise torque output, and long-term reliability for consistent window operation.