Kohler 5E

rich5318

I need to replaced heat exchanger and thermostat, is this difficult to do?

randy56

We have a couple K 5 expert's on here they will chime in. welcome to the forum.

rasbury

Would not think so but why di you need to replace?

Black_Diamond

Depending on your access, not overly difficult, very messy (anti-freeze all over). Some of the bolts are a challenge to get too also. Worth having some of the ratchet type box end wrenches. 

For the thermostat you also need the o-rings. 

Aside from some choice words, the big challenge is to purge the air out when refilling. I posted an easy how-to on here. If you get air trapped it WILL shut down from an overheat sensor. 

Best place for parts:  

www.partsfortechs.com