Simonton Window Coil Balance

Hello! Your pivot shoe appears to match our 15-199, which is designed to be compatible with either the 3/8" Series 165 or 1/2" Series 160 coil spring. You will need to measure the width of the band on your old spring to confirm the better option for this window.

These photos don't tell me anything new, unfortunately. You need to remove one of the existing coil springs from the window and measure the band. That's the only way you're going to be able to choose between the two Series that I mentioned.

If the band is 3/8" wide, you'll want to pick the Series 165. If it's 1/2", then pick the Series 160 instead.

You'll have to remove the springs to determine the proper stamp option, anyway. Removing the coil spring from the window is unfortunately a necessary step at this stage. It has to be done before you can pick the right replacement.

When I say the band, I mean the flat par of the coil spring itself. This is also where you'll find the weight rating stamp, which should be only a few digits long. 

Which leads me to say that I don't recognize a stamp of 801020. The stamp I'm talking about should literally say something like "6 lbs," or similar. It will be printed on the metal band of the coil spring itself.

Looking at this photo, your pivot bar should be fully compatible with our 15-199. There's no need to get a new one as long as these are in good condition.