Searching for pivot Bar for 311586003

Thanks for reaching out! There is a chance that we can supply you with a pivot bar for your Kohler Window, however, I'll need to see a photo of the existing hardware to determine if there is a replacement we can recommend. I am not able to identify the part you need using the information provided, unfortunately. 

It would be best to see a photo of the pivot bar removed from the sash.

Please let me know if you have any questions.