WindowMaster Replacement Parts

Hi there!

We should be able to help with this. I just can't identify the operator from these photos. I would need you to open the window and show us a bird's eye view of the entire assembly, especially the arms.

If all you need is the handle then I recommend you take a look at the 39-114L which is designed to fit an 11/32" spline. 

These will do just fine, thank you! It looks like you have either the 39-439B or 39-253RB operators. The difference between the two is the design of the guide at the end of the arm. The video below will go over precisely what I mean. 

It sounds like your operator is stripped so you would need a new one. I'm just not familiar with the white plastic part you're referring to though. Could you show me a photo of that? 

Thanks for the additional photos. This resembles the 39-529 to me. As long as the specifications match up with yours then you should be good to go! 

Alternate image for 39-529

You're very welcome! I'm happy to help. Good luck with the repair; I'll be here if you need anything else! 

If that's the case then you would need a new operator. 

Is this the same window as shown in your original batch of photos? If so, they should have the same operator that we identified previously. If not, we'll need to see a photo of your operator with the window open so that the arms that move the sash are fully visible.

Sure, the operator we identified in your photos was the 39-253RB which uses the 39-529 track slider (sold separately). The 39-253LB would be for the opposite side. 

No problem, I'm happy to help!