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thermostat question

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Old Jan 10, 2010 | 06:30 AM
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thermostat question

I got a new thermostat,drained the coolant and pulled the housing to find the new stat is bigger physically than the old one.It won't fit in the block.Is there more than one part number?It's a 94 7.3 Turbo.I looked up the stat for a 6.9,7.3 and the PowerStroke at Rockauto and get the same part number.Anybody know what is going on here?
 
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Old Jan 10, 2010 | 07:19 AM
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https://www.ford-trucks.com/forums/9...es-inside.html Have a read through this. Part No. given in one of the posts.
 
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Old Jan 10, 2010 | 07:31 AM
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you should only buy a thermostat from ford or international. parts store t-stats don't fit, or will make your engine overheat if they do fit. this is one of those parts that is a dealer only item.
 
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Old Jan 10, 2010 | 09:52 AM
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motorcraft thermostat and gasket are about 35 bucks, it is worth the peace of mine, just like the beru plugs.
 
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Old Jan 10, 2010 | 10:21 AM
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Didn't you mention a 205 degree t-stat in another thread? I've always heard that the "magic temp" for a diesel engine is 203 degrees, but typically the t-stats temp settings are below that number. Everything I've read on this forum points in the direction of buying t-stats solely from the Ford or IH dealerships.
 
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Old Jan 10, 2010 | 11:03 AM
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The last one I bought was at the int. dealer and was only 11 or 12 bucks.
 
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Old Jan 12, 2010 | 08:35 PM
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Ok,I found another number.I guess the one they had listed was the same as a Powerstroke?I ended up getting a 195 degree stat for a gas engine because I was going to have to order and wait again.It seems to be working OK and the one that was in the truck when I got it was 195 degree.I know the factory calls for 205 degrees for a reason but has anybody had any problems with a 195 degree thermostat?
 
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Old Jan 12, 2010 | 08:49 PM
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I don't have a problem with a 195 degree stat I think the last one I bought from international was 195. I was at a stant seminar (school) once and they claim that 195 means that is when it starts opening it will not be fully open until 212 degrees.
Now there has been many cases of any parts house even the right part numbers not working in the IDI motors. I have always used dealers (international) for mine. so I personally can't verify this but for a stat you are probably looking at less than 5 bucks difference I wont risk an aftermarket stat.
 
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Old Jan 13, 2010 | 04:45 AM
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The one I got for the gas engine is a Stant.There is a rubber seal around the thermostat that was called for.The book said to remove the seal and that makes it the same diameter as the one for the gas engine.It fit like it was made for it but,I was just wondering about the pros and cons of using a 195 degree.
 
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Old Apr 3, 2010 | 03:38 AM
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what is the stock 6.9 thermostate temp ? is it a 195 deg F?
 
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Old Apr 3, 2010 | 05:09 AM
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The OE opening temp is 192*.

Jason
 
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