Hello!
I can find no part numbers or other markings on these coil assemblies. As you can see, they are fairly beat-up at this point. I have been completely unable to find replacements locally, and unwilling to replace an entire window, so I'm hoping you can help me identify what I need to replace these and have a working window again. :)
Looking forward to some resolution
Quick Learner from Belleville, IL
Dec 16, 2025 9:46 am
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2 Replies
Jasmine from SWISCO
Dec 16, 2025 12:48 pm
Thanks for posting! Your balance shoe is a match for the 15-180 Coil Balance Shoe. To determine if this is the correct replacement match, carefully review and compare the dimensions below.
You may also need the 26-040 Pivot Bar.
Alternate image for 15-180
The compatible coil spring is the Series 190 Coil Balance, which is secured to the shoe using the 33-073 screw. It is anchored to the window track using the 15-186 Coil Balance Clip and 15-182 Balance Bushing.
Take a look at the video tutorial below for instructions on selecting the correct coil weight option.
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