40-089 looks identical to mine, even the thumbkey, though mine measures 1'16" x 2'1/4". I don't believe the 3/32" shorter cylinder would matter, as my door is only 1'1/4" thick, but want to make sure I'm not mistaken. Thank you.
Dave Sr. from SWISCO responded:
July 13, 2016
I don't think it should matter too much, either. If you'd like, you can show us a picture of your handle set and key cylinder and we can try to work out whether the 40-089 is a good fit.