Equus replacement sensors are for use with electrical gauges. This sensor is for measuring fluid temperature and features male 1/8-27 NPTF threads for installation. Equus offers a variety of adapter fittings for compatibility with most popular engine types for sale separately. Product Features:Genuine Equus replacement temperature sensorTo be used only with Equus gaugesReplaces worn or damaged Equus temperature sensorsDesigned for long service life1/8 NPT Male ThreadIncludes installation instructions in English, French, and Spanish.