Window Arm Unit

Hello,

I believe we can help, but we would need to see your assembly with the window open and screen removed so that the arms that move the sash are fully visible. That will help us narrow down your replacement options. Thank you! 

I see a single arm shown in your first photo, but I'm not sure whether there's another arm obscured. We have the 39-216 single arm operator, but I'm not convinced this is what you have. 

I wonder if you could have something like the 39-333, 39-156, or 39-032. Can you confirm if the operator has a link arm like these operators? Seeing a clear photo of the operator fully removed from the window would be a huge help. 

The operator shown in your new photos resembles the 39-032 dual arm operator. Review the specifications below to confirm they match your assembly. We also offer the 39-031 opposite-handed version if needed. Thanks for posting! 

Dimensions for 39-032

In that case, the 39-156 may be a closer match. Note that the long arm is measured from the center of the base as shown below, which is tough to measure accurately with the operator still installed. 

Dimensions for 39-156