Genuine OEM Volkswagen HVAC Heater Core, part number 7P0819031A. This critical component transfers heat from the engine's coolant to the cabin air, providing warmth for the vehicle's interior climate control system. It is located within the HVAC assembly behind the dashboard. Weighing 1.305 kg with dimensions of 0.34m x 0.335m x 0.135m, this core is built to precise specifications. Choosing a genuine OEM heater core ensures optimal heat exchange efficiency, leak-free operation, and long-term durability within the complex HVAC system.