Youd need to get the gasket/O-ring as well.

Head down to your local part supplier and pick one up.

 

Lol I’m an idiot,
I have the gasket but I thought it was an oring, and didn’t realize that it splits open to go around the thermostat
Crisis averted lol
Thanks !

 

Lol I’m an idiot,
I have the gasket but I thought it was an oring, and didn’t realize that it splits open to go around the thermostat

Was about to post that when I saw you figured it out! Also for good measure, I also put a little water/coolant save rtv on the inlet side just to be sure and help seal.

 

extra sealant typically won't do anything, the O-ring is thick enough and quite pliable. Only time the extra sealant has affect is next time you need to get in there, just more to clean up before you put in the new parts.

Glad you got it done! Don't forget to bleed the system properly. Enjoy the ride!

 

extra sealant typically won't do anything, the O-ring is thick enough and quite pliable.....

Most of the time I agree you don't need it. It really depends on the quality of the O-Ring and how close to oem spec it is. I've never had a problem with OEM. I've rebuilt quite a few customers 4AGE & 3S-GTE and it seems extra sealant was needed 2-3 in about 10 rebuilds, all of which were aftermarket and didn't really "compress" much when closing the housing.

Glad to hear everything good on yours OP.

 

no need for sealant, I installed the rubber gasket and it worked like a charm