Need to identify replacement part number

Question

I cannot tell which replacement part number that I need.  There are no number stamped on the channel balance.  The metal piece is 29 inches long.

Casey · Accepted Answer

Hello,

It looks like you have either our S351-29, with a 15-002 bottom attachment, or S390-29, with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need. You'll also need to locate the stamp on your metal channel to choose the spring strength option for your replacement balances. Thank you!

Comparison of the S351 and S390 balance shoes.