Walker Products 211-92002 Engine Coolant Level Sensor is designed to provide outstanding performance. The engine coolant temperature sensor uses a changing electrical resistance value to measure the engine coolant temperature and relay this information to the onboard computer. The computer uses this data and other inputs to calculate the correct amount of fuel to be delivered to the engine. Walker Products Sensors are precision manufactured from premium components in an ISO 9001:2015/TS16949 certified facility. It is manufactured to meet and exceed all Original Equipment Manufacturer (OEM) specifications and test requirements. Walker Products specializes in the engineering, manufacturing, and distribution of automotive engine management components. Walker is committed to meeting or exceeding the Original Equipment Manufacturer (OEM) or equivalent standards and specifications. This effort is backed by Walkers own manufacturing, product management and engineering expertise.