Stanley Garage Door Openers have not been made by Stanley since 1997. Stanley licensed the name to two companies after they quit production but those companies have both gone out of business.
by: Paul Sikkema
It’s probably not worth your time to track down the part, hope it’s the right one, wait for it, and then install it. For 150 dollars or so you can buy a new Genie, Craftsman, or Chamberlain opener. If you are not mechanically inclined you can have a Craftsman installed for around $109 usually the next day after you purchase it.
Search for Genie, Craftsman, and Chamberlain openers Here:
Craftsman AssureLink Internet DC Belt Drive Garage Door Opener w/DieHard Battery Backup, No Annual Fees, Free App Download