Genuine OEM Volkswagen Glow Plug Control Unit Relay Plate, part number 4E0937528. This component serves as a carrier for relays associated with the glow plug control unit, which is essential for the proper starting and operation of diesel engines. It provides a secure and organized mounting point for these critical electrical components within the engine's wiring harness. Weighing only 0.012 kg, it is a lightweight yet crucial part. Using a genuine OEM relay plate ensures correct electrical connections and vibration resistance, vital for the reliable function of the glow plug system.