Broken coil balance on Champion vertical sliding window.
Hey there,
This coil shoe reminds me of the 15-177 Coil Balance Shoe. I'm fairly confident it should be a match but take a look over the specifications and compare them.
You'll need the 1/2" wide Series 152 Coil Balance to replace the springs; attached to the shoe using the 33-072 screw.
To determine the correct coil weight option, look for a stamp/marking on the existing coil(s). If there are none, please see the tutorial (tagged below) for instructions on selecting the correct coil weight option.
If you cannot reuse the existing coil supports, you'll need the 15-143 Coil Bushing, 15-144 Coil Bushing Cap, and 15-145 Coil Support Barrel. All three are used together to create the support.