Mortise lock 4&1/2 inches in lenght

Thanks for writing in. See our 82-229. Look it over and see if you think this could work for you.

I agree with your assessment. Looking at the above photos, I think our 82-244 might be a better option for this application. I'll share its dimensions below for you to review.

Dimensions for 82-244

The 82-244 is compatible with an absolute ton of different handle sizes. Our 82-030 is a common pairing but far from the only option, and there's no guarantee it'll work on your door. 

I would be in a better position to make a recommendation if I could see your old handle, but for now our 82-030 is a good place to start. We have detailed information on its store page that you can use as a reference so as to make an informed judgment call.