SWISCO - The Replacement Hardware Authority

Broken part - needs Replacement

A home owner from Pennsylvania says:
The silver lock mechanism seems to be broken, which isn't the locking to the door jamb when I lock the door/attempt to lock it. The gold handle parts seem fine. The silver lock mechanism is stamped with 'MADE IN USA' and possibly 'U399'. The bronze door handles are stamped inside with '2260 TAIWAN, US PATENT 5125703D340398, SAH CONTROLS FERNDALE MI'

Please advise me with my options to get the door lockable again.

Thank you very much.

David K
User submitted photos of patio door hardware.
Profile picture of Dave
Dave from SWISCO responded:
Hey, David. Take a look at our 82-244 mortise lock and keeper set. This looks close to what you have. How well do the dimensions match up?
A home owner from Pennsylvania says:
Thanks. I plan to order.
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