Caldwell replacement window balancer needed

Question

I have uploaded the photos I think you need to identify and replace a set of old Caldwell window balancers. The balancer used for the photos was intact and functioning, but the other has a broken pully wheel so I will replace the set. The metal portion of the balancer measures 29".
Do you have a recommended replacement part?

Bob · Accepted Answer

Hi there. Looks like you have either an S351-29 or S390-29. The inly difference between these two balances is the 'depth' of the bottom shoe. See below. For a stamp option, choose 2830.

Comparison of the S351 and S390 balance shoes.