MI Windows Sliding Patio Door Handle/Lock Assembly
Thanks for reaching out to us! The 82-030 Sliding Patio Door Handle Set should work to replace your existing set. It is not an exact match but it should work, so long as the installation hole spacing is the same. Take a look over the specifications below to confirm.
We typically see damage, like this, on patio handles when excessive force is being placed on them. This is likely due to there being dirt and/or debris in either the roller or on the track, or damaged to one or both of them. It would be a good idea to examine them to discredit that as a possible issue.
Take a look at the video tutorials, tagged below this thread, for reference.
We're glad to hear the handle was a fit. This door lock reminds me of the 82-226 Mortise Lock. To confirm that this is the right replacement, carefully look over the dimensions below.