This is a Cambiare Coolant Temperature Sensor, part number VE375077. It features a 12 mm diameter and a 2-pin connector. The housing is blue. This sensor is compatible with various vehicle makes and models, including Vauxhall Antara 2.2D from 2010 onwards. It also has cross-references with other manufacturers like Bosch, Continental, and Delphi, and compatible OEM references from Alfa Romeo and Bentley. If you are unsure about compatibility with your vehicle, please contact us.