Window balance

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Quick Learner from Van Nuys

May 23, 2025 3:31 pm

I need to replace 4 of these. Marking says 1620 BSI OP. Which is the part I need from your stock?

5 user uploaded images

4 Replies

Tom from SWISCO

May 28, 2025 2:30 pm

Thanks for your photos. Based on what I see here, you have either our S380-17, S385-17, or S378-17 depending on the depth of the bottom shoe. That's the only difference between them. I recommend measuring your shoe and referring to our dimensions to confirm the best match.

Comparison of the S378, S380 and S385 balance shoes.

Quick Learner from Van Nuys

May 28, 2025 3:20 pm

Thank you for the reply. The top part of my balance does not match any of the options from your store. Does the top piece have to match?

Tom from SWISCO

May 29, 2025 9:55 am

In your case, the differences won't be relevant to the function of the balances. Your top fitting is just an older version of our 19-005.