I was only able to find ONE F4TF12B565AA and it was used not rebuilt. I didn't want to take a chance so I contacted a rebuild company and they gave me the following. FOTF12B565AA as a replacement. According to the chart provided on ebay by them, I am good to go.
I'll let you know.

 

I don't know that number... but this is Ford's Last Replacement part number 7.3 Diesel F series Econoline all 50 states use #F4TZ-12B565-AA
Maybe Number Dummy .... Bill can shed some light on it ?
What I posted is per the Ford TSB 94-2-26

 

Here's the latest update. I ordered the FOTF-12B565-AA from the rebuild company. As I said before, they, Pro Rebuild (ebay) in Missouri listed my truck as one compatible with that TCM (all same except mine is 3/4 and their listing is 1 ton). The transmission shop installed it and made some repairs to the gauge cluster. The transmission seems to shift properly although I have not put it through the paces yet.
Now, to make things more confusing, the rebuild company called yesterday telling me they received MY TCM and after looking at my numbers, the one they sent me supposedly won't work with my truck. They were surprised when I told them it IS working.
Do you think I should contact the rebuild company and attempt to have them rebuild my TCM and exchange it or do you think I am OK?
(I'm ready to scream)

 

As I said I don't know that number (FOTF-12B565-AA) 3/4 ton or 1 ton is same difference. the latest Replacement that I Know that works on the 7.3 NA is the F4TZ-12B565-AA.... IF you have Turbo then ...........

• 7.3 Turbo Diesel F series all states all altitudes use #F4TZ-12B565-EA <<<<==== this would be my guess for your Truck by your listing in your Signature
• 7.3 Turbo Diesel Super Duty all states all altitudes use #F4TZ-12B565-FA

 

Just sent to me by rebuild company:

If it is shifting properly, you are good to go.

 

OK here is the Deal.... the one you pulled out was F4TF12B565AA <<=== this PCM is for Non-Turbo.... so my guess is that someone Before you just added the Turbo and did not Change to the correct PCM and I also wonder IF they even changed the Injection Pump.... the real difference in the PCM is just the shift points as far as I know.

so either one will probably work fine.... but not optimal for the application.

 

At least you know the PCM fixed the problems .... I would talk to the company and find out from them Exactly Why they say it will not work for your truck

the Base Number is 12B565.... the last 2 letters seem to indicate AA is for Naturally Aspirated BUT I'm not sure that those letters actually Mean that, I've never seen a break down of what all the digits and codes on the PCM mean from a Reliable source.

 

I installed the turbo (Banks) They did not say anything about changing the PCM-TCM. I did have the injector pump rebuilt and told them it was turbo charged.
As far as more power after the turbo, the only improvement I felt was when I was pulling my 5th wheel in the Rockies. I could not pull hills before the turbo. As far as more acceleration, (get up and go) I was never impressed. Do you think I should discuss this with the TCM rebuilder? Maybe he has a "EA"

 

IMHO Yes... I would discuss this with the PCM rebuilder.... now is a good time since you are already in it Knee Deep

there is no real change in wiring between the different years of the IDI with the E4OD the only changes were inside the PCM itself and I think that was mostly just Firmware

 

Changing the TCM is not required. If it is shifting fine, you can leave it be.

 

while maybe not required... seems funny that Ford would use different PCM on the turbo'ed motors if they didn't think it was required.. they could have saved a lot of money

 

What banks turbo did you add and what do you get for boost under load?

I'm still running the N/A TECA in my F250 after adding a turbo.There's no need to change it for the turbo version.I had a N/A version in my F450 and swapped in the turbo one and I couldn't tell any difference at all. If it has a different lockup and shift schedule,it's so minute that it can't be felt.

 

most every one down here slaps a tuner on em so in that case I can see for sure it makes no difference, and they crank the screws as tight as they can get em ROFLMAO.

 

They are different basically because the turbo engine needs more pressure during the shifts to make the transmission live a long life. The non turbo TCM will shift just fine, but the clutches won't last anywhere near as long.

 

Bingo ... that says it all right there