Engine Coolant Temperature Sensor — 18mm thread What this part does - Measures engine coolant temperature and sends that signal to the engine control unit and dashboard gauges. Accurate temperature feedback helps the ECU adjust fuel mixture, ignition timing, and cooling fan operation. Key benefits - OE-standard design and manufacturing: produced with modern tooling to meet original-equipment specifications for fit and performance. - Durable materials: built to the same specifications as the factory unit while using more durable materials for improved service life. - Direct replacement: 18mm-thread direct-fit unit installs like the factory sensor with no modifications required, reducing installation time and risk of fitment issues. - Restores system reliability: replaces worn or failing sensors to return accurate temperature readings and stable engine control. Important attributes - Type: Engine Coolant Temperature (ECT) sensor. - Thread size: 18mm — verify this is the required size for your application. - Construction: replacement unit engineered to OE specifications with upgraded materials for durability. - Performance: designed to provide reliable, repeatable temperature signals comparable to the factory unit. Typical applications / use scenarios - Replace a failed sensor that is causing inaccurate temperature gauge readings, poor idle, or a temperature-related diagnostic trouble code. - Install during cooling system repairs (thermostat, radiator, water pump) to prevent rework and ensure the control system reads correct coolant temperature. - Use as a preventive replacement on higher-mileage vehicles when the original sensor shows intermittent faults or degraded performance. Installation and fitment notes - Direct-fit, plug-and-play replacement for vehicles that require an 18mm-thread engine coolant temperature sensor. - Always verify thread size and connector style against your vehicle’s original part before purchase.