Andersen Window Sash Balances Replacements

A home owner from Westminster, MA says:
June 26, 2022
Face plate reads
6231 along the short side of the balance
Other numbers include 1089, and 11600-17

I do not see a sample sash balance on your web page. Do you have replacements for it?
Windows were installed in 1990.
Profile picture of Tom
Tom from SWISCO responded:
June 28, 2022

Hello,

Based on the information you've provided, you may be looking for the 24-637 Andersen sash balance. To confirm, we'd like to see a photo of the "6231" stamp on your balance housing. Thank you. 
A home owner from Westminster, MA says:
June 29, 2022
Thanks, Tom.
I am away all week, unfortunately. Please be patient and I will re-open the casing to take a photo. Actually, I did notice, in looking at two other that need repair, that an additional code is on the screw flange. I will look for that as well.
Stay tuned.
A home owner from Westminster, MA says:
July 2, 2022
Tom:
Thanks for your patience.
I am attaching three photos, and will need a pair of each style.
One is very faded and seems just to be a bad "stamping" job.
Good luck.
Thumbnail of the uploaded file named 20220626_104703_873.jpg
Thumbnail of the uploaded file named 20220626_110607_827.jpg
Thumbnail of the uploaded file named 20220702_104343_1089.jpg
Profile picture of Tom
Tom from SWISCO responded:
July 5, 2022

Thanks for getting back to us. Your stamp does indicate that the 24-637 would be the correct replacement for your Andersen balance assembly. Thanks for posting. 
Andersen Sash Balance, 623, 627, 631, 637
Andersen Sash Balance, 623, 627, 631, 637
24-637
$54.20
How to replace an Andersen Window Balance
How to replace an Andersen Window Balance
VIDEO
WATCH >
Andersen's Narroline Sash Balances
Andersen's Narroline Sash Balances
GUIDE
READ >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.