Can you identify this Anderson Window Balancer?

A handy person from Maine says:
September 6, 2015
The 2 pictures attached show an Anderson Window Balancer I'm looking to replace. It has two cords, the one for the inner window has broken. Markings on the balancer include the Anderson Logo and the following Letters & Numbers D35 7P27376. Dimensions of the balancer are: 6-1/4"L x 2-13/16"W x 3/4"Thick. It's from a mid-1980s vintage window. Thank you for any help you can offer!
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Tom from SWISCO responded:
September 8, 2015
Based on your stamp of "7P27," I recommend our 24-737 Andersen sash balance.
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