Coolant systems are essential components in various machines, including vehicles and industrial equipment. Their primary function is to regulate temperature by transferring heat away from critical parts, preventing overheating. This is typically achieved using a liquid coolant, which absorbs heat and circulates through the system, often aided by a pump and radiator. In automotive applications, coolant systems usually consist of a mixture of water and antifreeze, which helps maintain optimal operating temperatures. Key components include the radiator, water pump, and thermostat. Proper maintenance of coolant systems is crucial for ensuring efficiency and longevity of the machinery they serve.