06K121111R Thermostat Housing, fit for VW Beetle 2012-2018, for VW Jetta 2012-2018, for VW Passat 2014-2017 The replacement engine coolant thermostat housing assembly

Although the car water pump has a simple structure, it is the power source for the engine cooling system and is crucial to the engine’s health. Understanding its function, working principle, and common faults helps car owners to identify potential problems in a timely manner and perform proper maintenance, thus avoiding major issues and protecting the expensive engine.