Pella Channel Balance replacement

Quick Learner from Florida
Jan 6, 2025 3:38 pm
Attached photos of a channel balance from a probably 2005-ish Pella window that I need to replace. It's from what I think is a non-tilting (don't see any tilt latches) single sash window and is 1/2 inch wide and the metal part is 16 inches long. I went through your Part Indentifier Wizard and it looks like either the 351 or 390, but I believe the 390 due to the length of the bottom shoe (see photo), just writing to see if you think too that it'll probably work. The only writing on the old channel balance is 1510 (spring strength) and "OK BSI". Thank you!
5 user uploaded images
4 Replies

Casey from SWISCO
Jan 7, 2025 1:43 pm


Hello,
I agree that it looks like you have either our S351-16, with a 15-002 bottom attachment, or S390-16, with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need. You'll also need a 1510 spring strength option for your replacement balances. Thank you!

Comparison of the S351 and S390 balance shoes.

Quick Learner from Florida
Jan 17, 2025 11:58 am
Your replacement part worked! Happy customer, thanks again. :)

Casey from SWISCO
Jan 17, 2025 2:32 pm


That's great to hear! We appreciate your business and please let us know if you need anything else.
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