Track Slider
Help would be greatly appreciated.
Thanks for reaching out! The piece you have here in your photo is a particular type of slider; usually built into the operator arm. Unfortunately, it is not sold as a separate piece. The 39-529 would not work to replace it.
Since it is damaged, you'll likely need to replace the entire crank operator.
I'm happy to take a look at your hardware to confirm the correct replacement. I'll just need to see a photo of the entire operator to determine the the right replacement.
Please let me know if you have any questions.
Thanks! What you have here is instead our 39-439B. The 39-253RB that you purchased is very similar in design, but as mentioned the guide at the end of the arm is different, used to interact with a different style track. The 39-439B should be fully compatible with all of your existing hardware.