Window Coil Balances

Thanks for your post! This window balance assembly can be replaced with the 15-177 Coil Balance Shoe and Series 152 Coil Balance springs. Since the sash weighs 16lbs, you'll need the S152-4 to replace the coils. These are attached to the shoe using the 33-072 screw.

To replace the coil supports, you'll need the 15-143 Coil Bushing, 15-144 Coil Bushing Cap, and 15-145 Coil Support Barrel. All three snap together around one coil, so you'll need to buy them for all four coils.

Alternate image for 15-177