The way you guys have been talking about the 180 T-Stat, I'm thinking about getting one....
Do you think it will be best to have it installed the next time i do a coolant change?

Also, while i have you...I know the company "Stant" makes thermostats.....Does any body know if there are anymore manufacturers out there? And if so, what the model number might be?

 

i believe a lot of peopl are using the jet thermostat as well.... sorry no part number off hand but im sure jegs or summit would have it if you searched.... you could flush your coolant than do it if you wanted to but you dont have to just be cleaner....

 

I don't have the model # but the Stant everyone uses isn't a direct fit...you need to grind off something like a mm from the circumference for it to fit right but it only costs a few dollars. The Jet # is 10177 but your looking at around $45 after shipping. As for installing it it really isn't hard to do but just remember that if you use the DIY threads on here they are all for a hemi and on the 4.7 iyou'll be under the engine by the front passenger side tire

 

I just put on a Jet t-stat, last Friday. 15 minutes, with air ratchet. The Jet is a plug n' play...no shaving required. If you're gonna change out your coolant, that is the best time. I didn't and onlydumped about a gallon, at most.

 

Stant does have a thermostat that is a direct fit. Alot of people just don't know the right part number to get. I have the one that is a correct fit. I flushed my coolant at the same time I did the thermostat. I really didn't need to but as cold as these MN winters get, the better the coolant the better the heat...

 

$45 is a little steep for the Jet, I paid $32 to the door. I felt it was worth it, stainless steel and lifetime warranty. Besides, you gonna cheap out to save $10-$15 on a $30,000+ truck?

 

[size=3]Fella's i don't think i'll be getting that thermostat again...Here's the reason why, i was able to obtain this information:


Keep in mind that the thermostat has absolutely nothing to do with high temperature it only controls minimum temperature. So in the summer the engine will run at the same temperature it always does. But in the winter --- look out!!!

The colder thermostat may prevent the truck's computer from going into "closed loop". If it does the check engine light will come on periodically. Even if it does go into closed loop fuel economy will suffer as fuel economy is directly linked to operating temperature. The colder the engine runs the more fuel it burns. Burning more fuel can compromise lubrication in the cylinders and shorten engine life. More fuel is used because one of the primary fuel delivery control devices is the coolant temperature sensor. Average drop in the winter is two to four miles per gallon (some will be less, some will be more). It will automatically shorten the life of the engine and may cause engine oil sludge which is a serious problem on the 4.7.

 

Most people in northern climates swap between summer & winter. Someone from Wisconsin posted on another forum that he had a CEL all winter with the 180 T-Stat and the dealer could not figure it out. Posted the same question on the forum he asked the dealer and 20 guys told him put the stock one back in. Fixed the problem.
I don't have that issue here in Florida...

 

hmm.... the t stat has always been one of my thoughts... i dont see a true benifit... fuel mileage would suffer you engine is always trying to warm up...

 

I am getting about 1mpg better off my 180 t-stat than I was with my stock t-stat. I have not had it in through winter so I will see how it fars this winter.