Pin replacement to fit tentioned slider pin in side chan el of window

Thanks for posting! The shoe in the window track appears to be an older version of the 15-180. It is typically paired with the 26-040 Pivot Bar. 

You'll need to remove the existing pivot bar and compare the dimensions below to confirm that it is the right fit. If this is not the correct replacement, I'll need to see a photo of the existing pivot bar.

Dimensions for 26-040