Window balance with 7R marking

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Handy Person from Wayne, PA

Jun 14, 2026 8:18 pm

Can you please give me the replacement part number for this.
Thank you.

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4 Replies

Bob from SWISCO

Jun 15, 2026 1:31 am

Hey there. This looks like a Series 140 Coil Balance system to me. For a system with a '7' stamp use the S140-07 7 pound system. Let us know if you have questions.

Quick Learner from San Diego

Sep 18, 2026 6:13 pm

I have the broken s140 left and right balance removed. How do I get the replacement into position?

Bob from SWISCO

Sep 19, 2026 12:18 am

The video below shows how to remove and replace a similar coil balance system. The general principles should apply.