For Viano Vito W639 2003- OEM: 6397200446 6397200546 A6397200446 A6397200546 The surface of the window regulator support is made of cold-rolled steel plate, which is durable and has good seismic. Optimized gear sets and rail design ensure smooth, quiet operation, significantly reducing noise during window movement for a better user experience. Matched with the factory interfaces of various vehicle models, this component adopts high-toughness engineering plastic and anti-abrasion accessories to guarantee stable under long-time and frequent working conditions., Manufacturer: BQWYEDPL