For you guys that have put this switch in, I went to autozone, but they have 2 diff one, so i'm not sure which one to get. I have 2 pics though, so if someone can tell me which one i should get, that would be great.



First

https://www.nopistons.com/forums/pub...#>/biggrin.png second

n350-18-840

Is that what goes in the coolant filler neck? Cause the second one looks like it. I thought it was the coolant level sensor https://www.nopistons.com/forums/pub...1047683561.gif



How much is that gonna set you back cause right now I might need a new one and I didnt want to pay $54 from mazdatrix.

it's not the one on the coolant filler neck...that's the low level sensor.



The sensor you'll be replacing should be on the backside of the water pump housing. You'll need to take off the UIM to get to it.

yeah that goes on the back side of the housing. It's 24 bucks at the autozone. The first one is 10 bucks. Thanks for replies guys.