This Febi Bilstein Heater Resistor is designed as an OE equivalent, ensuring quality and fit for your vehicle. The interior heater blower, typically located behind the dashboard, is responsible for blowing air across the evaporator or heater core. This resistor is part of that electrical circuit. It features 4 connectors/ports and weighs 0.040 kg. Please use the make and model tool to confirm fitment for your specific vehicle. If you are unsure, please contact us. We offer same-day dispatch if ordered before 2:30 pm Monday to Friday.