Coolant Temp Sensor - Small Thread M12 x 1.5

The Haltech Coolant Temp Sensor with M12 x 1.5 small thread provides accurate temperature monitoring for advanced engine management systems. This compact sensor fits tighter engine bay installations where space is limited, delivering reliable coolant temperature data directly to your Haltech ECU. The smaller M12 thread size suits modern cylinder heads and thermostat housings that require precise temperature feedback for optimal tuning, fuel delivery and ignition timing control. Essential for workshops requiring OEM-quality sensor accuracy in performance applications where correct coolant temperature input ensures safe, reliable operation.