Thanks, ***** ***** says it all.
There is absolutely no generic replacement for that motor. That style was obsolete before Columbus landed in the new world. You will be very lucky if the local Trane dealer can get one for you...that is your best bet.
However if the can get it from Trane US, there is no reason it should take more than a week to get to customs in PR... they are probably waiting to get more orders so they can get better shipping rates... tell them that you way for expedited shipping... that might cost you an extra $100.
The chances that you get a drop in motor if that style from Grainger or Johnstone Supply are virtually zero.
Ask Trane if they can expedite shipment of the replacement, tell them you will pay the extra charges, let me know what they say.
If you can send me 4 or 5 different pictures of the motor and fan as it is mounted in the unit, I might be able to see a way to change the configuration entirely to use a stock motor...you will probably have to remove the entire top of the unit in order to get those photo's. that would be a last resort however.
Beyond that, these older units were only 8 to 10 SEER rated when they were new, cost of operation is about double what one of the newer systems costs to operate..sometimes even more. Trane makes an excellent line of new systems that run into the 18 to 20 SEER efficiency range.... if you plan on keeping the property now would be a good time to talk to them about replacing the system.
Let me know what you think about all that, we can go from there.