Kurtz Casement Window Replacement Parts

Thanks for posting. I agree, our 39-031 and 39-032 look like they match up very well. I would just double check to be sure that the dimensions are the same.

39-375 and 39-376 will not work for these operators. These have left and right oriented handles, but if you look at our 39-031 and 39-032, you'll note that their handles are centered. If you want a nesting handle/cover combo, you'll need to use our 39-107FK. The bad news is, it does not come with a left or right hand version.

As for the number of turns, it takes the same amount as any other handle. The amount of turning required to open a casement window has little to do with the handle itself and everything to do with the operator.

Finally, you asked about left and right. That's a tough question to answer;  "Left" and "Right" handed operators are actually defined differently from manufacturer to manufacturer. Some companies define it by what side the operator sits on, others define it by what side the handle sits on, while others may define it by the direction in which the window opens. There really is no industry standard.

Don't think about it in terms of Left or Right. You'll be better off if you ignore those terms entirely. The best way for you to determine what operator you need is to compare your hardware to the pictures we have on our site. Does the arm face the same direction? What side are the gears on? What side has the bore?

Thanks for the reply. The handed-orientation of the operator doesn't have anything to do with the design of the 39-107FK; this is determined by the configuration of the operator itself, i.e. the orientation of the link arms. What I meant was that the 39-107FK will look the same regardless of what side of the window the operator itself is connected to; but it will work fine for both handed-orientations. 

I am afraid the rollers at the end of the operators are not meant to be sold separately; unfortunately, when they break, the entire operator needs to be replaced. Let me know if this all makes sense to you, and if you have any questions just ask again. Many thanks!