Spring that keeps window open

Hello,

We can't be sure with the hardware still installed but the shoe resembles the 15-180, which uses the S190 coil springs. You'll need to locate the numbers stamped on the original coils to choose the corresponding strength options. These coils use the 15-186 support and 15-182 bushings for installation. Take a look at these parts, as well as the related videos and return policy here. Thank you! 

Alternate image for 15-180