Casement window operator

Hey there,

Thanks for posting! Your window operator reminds me of the 39-430 Roto Single Arm Operator; the opposite handed version is the 39-429. To confirm that this is the right replacement, carefully review and compare the dimensions and design below.

The compatible handle is the 39-232 Roto Folding Crank Handle.

Alternate image for 39-430

View of the underside of the arm

My sincerest apologies, I did miss that detail. The based of the operator on the 39-429 and 39-430 are under 4", much shorter than your base. Unfortunately, this likely will not work for your application.

I am consulting with our senior experts in regard to this inquiry. They may be able to source a suitable replacement or provide a solution for your repairs; although, I cannot make any guarantees.

Please let me know if you have any questions in the meantime.

Thanks for your patience! Our senior expert could not find your exact operator, unfortunately. Your operator design looks like a cross between a Truth operator body with a Roto arm and clip. 

That said, take a look at the 39-450 Encore Single Arm Operator along with the 39-528 Casement Track and the 39-529 Truth Hardware Track Slider. The opposite handed version of this operator is the 39-451.

The compatible handle and cover sets are the 39-376 folding set and 39-452 non folding set.

Detail of 39-450

Alternate view of 39-528

See if you could use this type of operator with the 13-1/2" arm as a replacement for your window. I cannot make any guarantees since you'll need to make the appropriate modifications for your project, but it certainly worth considering.