Genuine OEM Audi Thermostat Housing, part number 06D121111G. This critical component encloses the engine thermostat, directing coolant flow through the engine cooling system to maintain optimal operating temperatures. It typically features multiple ports for hose connections within the cooling circuit. Weighing 0.332 kg and likely made of durable, heat-resistant plastic, this genuine OEM housing ensures a leak-free seal and precise coolant routing, vital for efficient engine performance and preventing overheating.