For Golf OEM : 5K4839461,5K4839462 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, effectively reducing noise during window movement for an improved user experience. Compatible with the factory interfaces of various vehicle models, this component uses high-toughness engineering plastic and anti-abrasion accessories to maintain stable performance under long-term and frequent working conditions., Manufacturer: LCQSYE