Hi, I'm having trouble finding the temp sender for my 12a as Mazda stopped making it. Is there any aftermarket ones that will fit? I bought the TS80 from rockauto yet it was too big.

 

Check with Mazdatrix

 

I ran into that problem before, my 12a was replaced before and the replacement had new housings, I read on here that new housings used a different thread for the temp sender, they did not use a crush washer like the original housing's sender did.

I cross referenced G607-18-51X to find one that fit my 12a. However you said TS80, that has a different style connection than the part number above. Does your car use the spade or pin style plug?

 

There are two different thread types for the coolant temp sender and its based on model year. What year is your car amd is the engine original?