Temperature Sensor For Metrakit AlfanoCustom made for us are these temerature sensors for the Metrakit engines to work on the Alfano dash. These sensors are M10x1. 0 thread (some old MK heads used a larger red Koso temp sensor in which case a reducer may be needed) These sensors were made with leads of sensible length so you don't end up with tons of extra wire cable tied to the frame, they also have a connector plug close to the engine for easy disconnect for engine work