Replacement Marvin Part

Handy Person from Fort Worth, Texas

Oct 30, 2014 9:24 pm

We bought this house a few months ago, so I don't know the age of our Marvin windows but i don't think they are terribly old. One of our cranks is stripped and I'm wondering if you can help me identify and sell me the part that needs to be replaced. The portion that seems to be stripped is the end of the silver shaft where it makes contacts the horizontal gears - I hope that makes sense. Thanks for any help you can provide.

User submitted photos of a window operator.

10 Replies

Paul from SWISCO

Nov 3, 2014 10:18 am

Sounds like you need a new operator. I cannot say for sure what you have without seeing the entire operator (your pictures only show the base), but start by looking at our 39-031 and 39-032 and see how well they match your hardware. These are popular with Marvin windows.

Quick Learner from Fort Worth, Texas

Nov 3, 2014 1:59 pm

Is it possible to only replace the silver shaft (that the crank fits on to), rather than the entire operator or base? It seems that the shaft is the only part that's stripped. Thanks

Tom from SWISCO

Nov 4, 2014 11:15 am

I'm afraid not. It is not sold separately since it is machine-pressed into the operator at the factory. If it has stripped, then that means the other gears have stripped, as well.

Quick Learner from Fort Worth, Texas

Nov 4, 2014 1:21 pm

Thanks. If I remove the entire operator and send you a picture would you then help me determine which model would be the appropriate replacement?

Tom from SWISCO

Nov 4, 2014 1:48 pm

Yes, that will help us a lot. You may not even have to remove it, however. Showing us the arms when the window is open would also help, if that's easier.

Quick Learner from Fort Worth, Texas

Nov 9, 2014 3:55 pm

Here are 3 photographs of the arms with the window open. Do these help identify which replacement would be correct?

Tom from SWISCO

Nov 11, 2014 10:50 am

Thank you! Yes, I think Paul's recommendation still stands. Just make sure the dimensions match up.

Quick Learner from Fort Worth

Nov 11, 2014 8:18 pm

Thanks, but which one 39-031 or 39-032?

Dave Sr. from SWISCO

Nov 13, 2014 9:55 am

It looks to me like our 39-031, but you will need to carefully examine our pictures to be sure. Check the orientation of the gears and the arms, especially.