Genuine OEM Volkswagen Door Wiring Harness Bellows, part number 3C0959843A. This flexible, corrugated boot is designed to protect the electrical wiring and cables that pass between the vehicle body and the door from abrasion, moisture, and dirt. It is typically located in the door jamb area. Made from durable black rubber, it measures approximately 13 cm in length. Using a genuine OEM bellows ensures the correct flexibility, tear resistance, and precise fitment to maintain the integrity of the door's electrical system and prevent water ingress.