Balance spring 18-3
Hello,
We can supply your replacement balances but it will need to be a custom order due to the length, extended travel pulley system and unique combination of end attachments. Before we get started, we'll need to see a clear photo of the metal pulley clip to identify the correct replacement.
Also, keep in mind that the stamp code only indicates the strength of the spring but not the correct replacement. Lastly, please note that the minimum order for these balances would be two since it is important to replace both sides at the same time to avoid potential damage. Thank you.
Thanks for getting back to us with your additional photos. We just sent over an order link and price quote for you to review.
We do not generally recommend replacing the original balances with a different style since the window manufacturer chooses the balances for each window based on a variety of factors. I'd recommend carefully looking over all of the window hardware to see if any other damaged parts could be contributing to the problem. Take a look and let us know if you need anything else.
Your photos resemble the 18-171 top sash guide. I don't see any obvious damage but feel free to remove your part from the window to confirm that it matches the specifications below.
