Volvo Penta temperature sensor, part number 840074.
This sensor runs the gauge on the engines listed below. There can be a different sensor that runs the audible alarm on many installations.
If you are not sure as to the exact part for your engine, please call 01326 370060.
Volvo Penta Part No: 840074
For Volvo Penta Diesel Engines: MD7A, MD7B, MD11C, MD11D, MD17C, MD17D, KAD32, KAD42, AD31, AD41, MD1B