Help Finding Channel Balance for slider window 27 4 CU CMC 2

Landlord from Los Angeles

Nov 13, 2025 5:51 pm

Looking for Channel Balance for slider window to replace the 2x broken parts
I added photos but the number on the part itself is labled 27 4 CU CMC 2

4 user uploaded images

4 Replies

Jasmine from SWISCO

Nov 14, 2025 3:32 pm

Thanks for posting! This window balance is similar to a few different series we can supply. To narrow down the correct replacement, I will need to see a photo of the piece connecting the spring and the cord (string) in the middle of the balance.

Please let me know if you have any questions.

Landlord from Los Angeles

Nov 16, 2025 2:19 pm

Thank you Jasmine! I really appriciate the help... let me know if these pics are what you are looking for?

3 user uploaded images

Jasmine from SWISCO

Nov 17, 2025 9:04 am

Thanks for the additional photos. Your window balances can be replaced with either the S351-28 or the S390-28. You'll need to confirm the depth of the shoe to determine the right series.

For your 27 4 stamp, I believe our 2740 may be the best option. Although, you may want to double check that the sash weighs between 19 to 26lbs.

Comparison of the S351 and S390 balance shoes.