Genuine OEM Audi Rear Seat Belt Buckle, part number 4K8857739LMNB. This critical safety component is responsible for securely latching the seat belt, ensuring proper occupant restraint during vehicle operation. It is specifically designed for the rear left seating position. Weighing 0.607 kg, this buckle assembly is finished in MNB colour and includes necessary electrical connections. Genuine OEM seat belt buckles are engineered to precise safety standards, ensuring reliable locking mechanisms and proper sensor integration for optimal crash protection.