This radiator cap plug is compatible with OEM part numbers 1640163010, 1640115210, 0K20215205, 0K30A15205, 1640150071, 1640171010, 2143001F00, 214304B000, and 2143050A01.Item Height: 25mm Item Width: 11mm Special Features: Sealing engine coolant radiator cap plug cover Manufacturer Part Numbers: 0K20215205, 1640115210, 1640154750, 1792080E01 Interchange Part Numbers: 0K20215205, 1640115210, 1640154750, 1792080E01 OEM Numbers: 0K20215205, 1640115210, 1640154750, 1792080E01, 214304B701, 2143050A01, 2143050A02, 2143001F00, 1640171010 Designed for consistent performance in various vehicle cooling systems, this radiator cap plug helps maintain coolant integrity by providing a secure seal.It supports stable of the cooling system and contributes to overall engine function.Compatibility across multiple OEM and interchange references allows fitment on a range of models.The design enables straightforward installation without modifications or specialized tools.Its compact and lightweight structure makes handling easy during replacement or maintenance.Once installed, the plug helps reduce the risk of coolant leakage and supports thermal management within the engine compartment.