1/2" coil replacement part

Hey there,

Thanks for reaching out! Your exact coil shoe is no longer made but our 15-177 Coil Balance Shoe will work to replace it. Be sure to double check the dimensions below to confirm that it will be a fit.

Alternate image for 15-177

This shoe is compatible with the 1/2" thick Series 152 Coil Balance, secured to the shoe using the 33-072 screw. I'm sorry to say that I would not be able to determine the coil spring based on the B stamped on the coil. You'll need to obtain the exact weight of the sash and divide that number by the total number of coils in the window. Then you'll be able to select your spring from the list of Series 152 coils.

You may also need the 15-143 Coil Bushing, 15-144 Coil Bushing Cap, and 15-145 Coil Support Barrel.