Sliding Glass Door - Locking Mechanism

A quick learner from Payson, Arizona says:
We just purchased an older home constructed in the early 80's that has three sliding glass doors. The locking mechanism is broken on one and we would like to replace all three. Hopefully the attached pictures help. I found a mfg label that I can still read what looks like:

- Code 172-1
- Series 400-410-420-430

Your help is appreciated!

User submitted photos of patio door hardware.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Hey, Ruben, thanks for getting in touch. Check out our 82-002 locking handle set and let me know if this would be a good match. It comes with a couple different hooks and mounting screws, in addition to a keeper. If you also need a key lock and pull handle, see our 82-302 and 88-002, respectively.
How to replace a sliding glass door handle set
How to replace a sliding glass door handle set
How to maintain a sliding glass door
How to maintain a sliding glass door
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at