Genuine OEM Volkswagen Quick Coupler, part number 5QN122291. This component is used to connect coolant hoses within the engine cooling system, ensuring a secure and leak-free connection. It is typically found in the engine bay, facilitating the flow of coolant. Made from durable materials designed to withstand engine temperatures and pressures. Genuine OEM parts are manufactured to exact specifications, guaranteeing proper fitment and long-term reliability in the cooling system.