MI Window Coil Balance part for Window Model 16350108.1, 380

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Home Owner from Los Angeles, CA

Sep 23, 2016 4:02 pm

I would like to replace a broken coil balance part for my upper window sliding mechanism.

User submitted image of their window hardware.

4 Replies

Paul from SWISCO

Sep 27, 2016 1:34 pm

Thanks for posting. The pivot shoe that operates with your upper sash appears to match our 15-180, which in turn matches our Series 190 coil spring. You will need the stamp printed on the original springs in order to identify the best match.

Quick Learner from Los Angeles, CA

Sep 30, 2016 6:16 pm

It appears that your coil balance shoe 15-180 is what I need to fix my window. The Coil has only a "4" stamp on it.

Tom from SWISCO

Oct 3, 2016 10:25 am

Great! If your spring reads "4," then I think you can go with our S190-440 balance. A good way to confirm is to weigh your sash, then divide that among your springs; each individual S190-440 spring can carry 4 pounds, so since you have four altogether in your window your sash should be 16 pounds.