It would really depend on the commonality between the two parts. Basically, you would need to know the cold, warm & hot resistance readings of both sensors before making any other assumptions. You can probably just install it & watch out for goofy readings while operating the machine. I'd check the engine temps (using an infra-red temp laser / gun) after a about 5 minutes of running & after about 20 minutes, then compare the gauge to the laser gun readings. It may not be 'dead-on' accurate, but it should give you some level of indication as opposed to having no idea at all.