Simonton double hung rebuild parts

Home Owner from New Jersey

Dec 30, 2025 2:37 pm

Hi I am looking for a rebuild kit for simonton double hung windows (pivot shoe, coil support, coil spring, pivot bar). The window models are 3920037/04 and 3920037/01. Do you guys have the parts for these windows? Ty!

2 user uploaded images

4 Replies

Lauren from SWISCO

Jan 5, 2026 3:51 pm

Hello, thank you for posting,

Unfortunately we are not able to cross reference the numbers provided. To further review, we will need to see pictures of the original hardware to confirm the overall style to get started on replacements. Thank you!

Home Owner from New Jersey

Jan 6, 2026 5:40 pm

hi, attached are some photos of the window hardware/spring and balance assemblies

3 user uploaded images

Lauren from SWISCO

Jan 7, 2026 8:06 am

Great thank you!

Your original balance assembly has been discontinued, but we recommend converting to the 15-259 pivot shoe that is compatible with the Series 159 coil springs along with the 26-083 pivot bar.

Please review the step by step video that details the conversion and parts needed. If you need assistance with choosing the correct weighted coils, please provide the weight of the window sash to move forward. Let us know if you have any additional questions.