Replacement window parts
Hello, thank you for posting,
Please review the 15-177 pivot shoe that is compatible with the Series 152 coil springs. Compare the dimensions below to confirm a good fit!
The original coil spring should have a number stamped into it that indicates the weighted option needed. If there are no markings, please provide the weight of the window sash to move forward.
Also see the 15-143 coil bushing, 15-144 bushing cap and 15-145 support barrel. Take a look and let us know if you have any additional questions!
Thank you,
For a 17.4 pound window sash, you can use (1) S152-9 coil spring on each side of the window sash. Please let me know if you have any additional questions!