I could not find my serial number in the available parts. The numbers on the balance were 11600-7 and also E85 9#27 3 84. I would like to replace all my window balances about 13. Thank You Don
Tom from SWISCO responded:
July 18, 2017
Thanks for your question, Don. Andersen window balances marked "9#27" can be replaced with our 24-939. These replacement balances do not have a right or left side. They will work on both sides.