Key Lock replacement on my patio door handle
Hi there! If all you need is a key lock, then I recommend our 82-310. I'm confident this will work with your old handle set and mortise.
Let me know if you needed anything else!
Oh, I see. Sounds like you might need a new thumb lever. That's a little trickier; we carry the 82-240, but this is specifically designed to work for our 82-081 handle set. This is similar to yours but I believe it's a newer model. I can't predict if the newer 82-240 thumb lever can work on your older model handle set.
Sure, the 82-081 I mentioned should work perfectly. The size and shape is slightly different but it otherwise functions the same way. It's just an updated version of your old set.