Genuine OEM Audi Heater Combustion Chamber Insert, part number 1K0261433C. This component is integral to the vehicle's auxiliary heating system, facilitating the combustion process to generate heat. It is typically found within the heater unit. Weighing approximately 0.638 kg, this insert is constructed from durable materials designed to withstand high temperatures. Choosing a genuine OEM part ensures correct thermal properties and reliable, long-lasting performance within the heating system.