Andersen window spring balance replacements

A home owner from Delaware says:

August 4, 2022

Hi. I have the following Andersen windows for which I am looking for replacement springs, and have read the part #s off of two of them for reference. Can you tell me which of your part numbers match these?
Thanks,
Ron

Lower Sash Upper Sash
Visible Glass Visible Glass Stamp #(s) on spring
W H W H

28 28 28 28
28 36 28 24 04 L8 12 27 7-87 11600-17
32 24 32 24 E67 9#27 9 8

Paul from SWISCO responded:

August 4, 2022

Hello,

Based on your stamp codes, the Andersen balances you will need for your windows are:

28 28 28 28 - 24-1033

28 36 28 24 04 L8 12 27 7-87 11600-17 - 24-L8-1227 and 24-R12-827 for the opposite side of the window.

32 24 32 24 E67 9#27 9 8 - 24-939

Thanks for posting!

Andersen Sash Balance, 927, 931, 937, 939

24-939

$52.70

Andersen Sash Balance, 1027, 1031, 1033

24-1033

$52.70

Andersen Sash Balance, L8 1227

24-L8-1227

$52.70

Andersen Sash Balance, R12 827

24-R12-827

$52.70

How to replace an Andersen Window Balance

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