Milgard single/double-hung window with SO# 178719, Line 005. The balancer is broken
Quick Learner from Hawaii
Sep 15, 2026 8:02 pm
I have a Milgard single/double-hung window with SO# 178719, Line 005. The balancer is broken on both sides so the window does not stay open and does not move cleanly within the track.
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2 Replies
Jasmine from SWISCO
Sep 21, 2026 10:48 am
Thanks for your post! This top sash guide is no longer available but the 18-009 should work well to replace it. You will need to shave down the tabs on the top of it for the installation.
Keep in mind, altered parts/hardware cannot be returned/refunded. Our full return policy can be viewed here: Return Policy.
Detail of 18-009
Side view of 18-009
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