This ASHIKA thermostat, part code 38-0W-W18, is designed to precisely control the engine's operating temperature. By opening and closing at specific temperature thresholds, it regulates the flow of coolant through the radiator, ensuring the engine reaches and maintains its ideal working temperature. A properly functioning thermostat is vital for engine performance and longevity. It contributes to fuel efficiency by allowing the engine to warm up quickly and prevents excessive wear and tear caused by overheating or prolonged cold operation. This component is essential for the cooling system's overall effectiveness. ASHIKA is known for producing reliable engine components. This thermostat is built to meet stringent quality standards, offering durability and consistent performance. Replacing a faulty thermostat can resolve issues such as engine overheating, poor heating in the cabin, and inconsistent temperature readings.