This coolant temperature sensor from Febi Bilstein, part number 07798, is designed to monitor your vehicle's engine temperature. It plays a vital role in ensuring the smooth running of your engine by regulating the coolant flow. This sensor is a single unit and features a white color coding with an external thread size of 1/8"" - 27 NPTF and a spanner size of 12. It is manufactured with OE matching quality and fit, ensuring reliable performance. Always check that this product is correct for your vehicle before purchase. For any queries, please contact the seller.