Can the 39-107fk replace the 39-107?

Handy Person from Grand Rapids Michigan

May 22, 2013 5:55 am

I have a crank on Mrvin windows from 1986, handle with the # 45012 stamped on the back side. The cover I have is like your 39-107 cover. Can I use your 39-107FK to replace this crank and cover
Thank you

4 Replies

Tom from SWISCO

May 22, 2013 1:09 pm

Hey there, thanks so much for reaching out to us. Yes, the 39-107FK can be used in place of the 39-107. These two parts are fully interchangeable, and the added benefit of the 39-107FK is that it already comes with its own handle.

Quick Learner from Illinois

Aug 31, 2025 3:37 pm

How do you remove the cover? I don't seem to see a release or something to unscrew for it and I didn't want to pry it without knowing. Thanks!

Tom from SWISCO

Sep 5, 2025 9:34 am

These covers just snap on and off. You should be able to pop it off by hand.