RIGHT Side Door Upper Roller Support compatible for CITROËN JUMPER, PEUGEOT BOXER, FIAT DUCATO (2006->) A utility side door center roller is a mechanical part used in the sliding doors of utility vehicles, such as vans, pickup trucks, or trucks. It is a small roller, often made of durable synthetic material, which is mounted on a bracket fixed to the middle of the sliding door. The roller allows for easy, smooth movement of the door when opening or closing, while reducing friction and protecting the door and its mechanism from premature wear. The Center Door Roller is particularly important as it supports the weight of the door when closed and provides a tight seal to protect the vehicle's contents from bad weather and unwanted intrusions. BLIC: 6003-00-0123P, 6003-00-0288P, 6003-00-0288PP.