Thank you for all the comments and suggestions. I checked the stator output voltage with the rectifier connected as suggested. It read 40 Vac with the PTO engaged. So that is working correctly. I also checked the rectifier output again, still at 8 Vdc. So I decided to prove a theory and connected a 12V battery inline (acting like a standard mower battery). The output from the rectifier was now around 13.8 - 14 Vdc. Which I believe means I ordered the wrong part and have been chasing my tail ever since.
Leason learned, I ordered a part that looked exactly the same assuming that it was correct instead of researching for myself. I'm not sure if there is an identical part number, single bolt vs 2 bolt design, that meets my needs. But at least I now have the proper direction.
Thanks again for the help!
I understand that but it is probably the reason it is not working as someone installed the wrong one earlier. Or it was installed at the factory for a battery system. All I can go by is the info that Briggs provides.
Some techs think just if it connects it is the right one.
Please see my description of the troubleshoot I have completed at the bottom of the post. Is this thinking correct? I worked on helicopters for 24 years. But I am very weak on electrical (But learning!). The last question would be just to double check about the single mount bolt vs 2 bolts. If this is the correct rectifier and there isn't one with a single bolt, I will just drill and tap a second mounting hole.
Thanks for the help!!!