I still have the original t stat and run 195 to 204. Luck of the draw I guess.

 

My Motorcraft T-Stat is from October 2012, roughly 30k miles and still doing what it needs to do.

Josh

 

Is this the same as the thermostat that is $70 on the left of this photo?




I am comparing a photo of the Mishimoto thermostat and the thermostat on the left. I am just curious and not trying to hijack this post. Thanks

 

They don't look them same to me, where is that thermostat on the left from?

 

The holding tangs are not the same
to start with and the one looks shorter.

Sean

 

It is from a 2009 6.4L. The left thermostat is a Stant 203*. Comes with both the 203* and 190* in the kit. I was searching for a less expensive alternative to the Mishimoto. I just cant see Mishimito manufacturing them.

Thanks for letting me know.

 

If you look at post #9 Money-Pit posted a link to a much better price
for the T-stat from Mishimoto MMTS-F2D-03H High-Temperature Thermostat.


Sean

 

Hey Money... got any numbers yet for mileage... chomping at the bit to buy one of these!

 

Sorry, nothing yet to report on mileage.

 

Is the 6.4 t-stat pictured on the left the 203 degree style? Looks the same as the 6.0 with the addition of the gasket on the flange

Josh

 

Yes it is but I want to verify with measurements. The local auto part stores do not have the 6.4 thermostats in stock. Thinking of purchasing both the 6.0 and 6.4 from Rockauto, $34.56 shipped.

I overlooked post #9 that had the thermostat for cheaper. I am curious on MPG. Going to be doing two cross country trips and any fuel savings is a bonus.

 

Yes, the one on the left is the 203*. The holding tangs have an extra piece bent over where it is held in the housing, but that could be zipped off with a dremel "IF" it would otherwise fit dimensionally. Also, we don't know what it looks like when we take that rubber seal off.....yet

I will have one of these 203* 6.4 t-stats in my hands later today....when I get home I will compare it to my Ford 192* and report back.

EDIT: I don't think the 6.4 t stat will work....but I'll compare side by side tonight.

 

Sweet find Moneypit. I went thru 3 stockers a while back trying to get temps up. This will be a mod before winter for me. With all the interest could this be a group buy effort?

 

I can't take credit for finding it, Bismic came across them and it all started here... https://www.ford-trucks.com/forums/1...and-200-f.html

 

Thanks to Bismic is in order then, But still some credit for expanding the word as I don't usually view the Excursion thread and would have not seen it.
Ordering one today to have ready...