Yale Ogron Windows Series-58 -- 2740 Markings

Question

I have 10 windows in my house that all have the Yale Ogron Window Series 58 in them. I have one that needs Replacement Balances. If this works, my plan is to do the other 9 windows.

Markings on the Channel 2740
Overall length 28inches

I have more photos if needed.

Casey · Accepted Answer

Hello,

With this combination of attachments, you could have either an S380-28 or S385-28 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment. You'll also need 2740 spring strength options for your replacement balances.

Thank you and let us know if you have any other questions or concerns.

Comparison of the S378, S380 and S385 balance shoes.