window balancer caldwell 16 2 caldwell

Quick Learner from phoenix az 85022

Mar 8, 2026 8:54 pm

16-2 1620 Window Balance Spring Replacement, Overall Length 18", Block and Tackle Cartridge Channel Balance, CWH Premium Window Balancer Replacement, Stamped Size 16-2

4 Replies

Bob from SWISCO

Mar 9, 2026 2:31 am

Thanks for posting. I am confident we can help, but that stamp is not an identifier. It just tells us the strength of the balance. Can you remove your old balance from the window and show us photos of the attachments at both ends? We'll do our best to help from there.

Quick Learner from phoenix az 85022

Mar 9, 2026 8:35 pm

balancer is 17 inch long (metal) has id markings - 16 2 co caldwell - stamped on it i need 2

mike

4 user uploaded images

Bob from SWISCO

Mar 10, 2026 4:14 pm

Thanks Mike. Looks like you have either the S351-17 or S390-17, depending on the 'depth' of the bottom nylon shoe. See below. Measure your old balance's shoe depth to see what matches best. For a stamp option choose 1620.

Comparison of the S351 and S390 balance shoes.