Topran Coolant flange Jetta (1.8)

A radiator coolant hose adapter is a connector used to join different sections of coolant hoses or to transition between varying hose sizes in a vehicle?s cooling system. It ensures a secure, leak-free connection and helps maintain proper coolant flow between the radiator, engine, and other cooling components. Made from durable materials such as aluminum, plastic, or brass, the adapter withstands heat, pressure, and chemical exposure for reliable long-term use.