Window springs

We appreciate your patience with us during our busy season. The parts you are showing is a 15-186 coil spring housing with a 15-182 bushing. These pieces go along with the Series 190 coil spring. Look these parts over to ensure they are compatible with your parts. You will need the stamped number on the spring when ordering the new coil. The pivot shoe that goes along with the coil series is the 15-180. To remove the shoe from your window, there should be a cut out in the window track so that this spring system can come out. Look over the media guides on this page for assistance. 

Yep, these don't come in left and right. Our hardware can work for either side. This new photo is indeed a big help. It confirms the hardware I recommended before: our 15-180 shoe, 15-186 housing and 15-182 bushing, along with our Series 190 spring.

Without a stamp on the old spring, I can't be sure what Series 190 option you need. I would check each spring you need to replace just to be sure. If none of them have a stamp, tell me the exact weight of your sash.

Ah, I see. With an 18 pound sash, we'll have to fudge the math a little. I recommend using two springs on each side of the sash instead of just one; specifically, I recommend using one S190-440 and one S190-540 on each side. These would stack on top of one another and be held in place using our 15-181 double clip (not the 15-186 we recommended before). 

The S190-440 carries 4 pounds, while the S190-540 carries 5 pounds. Working together they carry 9 pounds, so having these on each side will be perfect for your 18 pound sash.

Let me know what you think.

Yes, people with your type of balance system have changed over to S140 with no problem. They found it easier to install.

Our pleasure. You will need the S140-9 quik tilt balances in both left and right. Ad for your pivot, take a look at both the 26-398 and 26-405. Depending on the measurements will determine which one you will use as a replacement. 

Hello! Hopefully I can clear things up.

You should still have pivot bars on your window. Both the 15-180 shoe you have now and the Series 140 balance system you're looking at use pivot bars. These are little metal posts sticking out of the bottom corners of your sash that fit inside the pivot shoe. I am 100% positive your window has them; it wouldn't work without 'em.

The only issue is that your current pivot bar won't fit in the new Series 140 shoe. There are only two pivot bars compatible with this new system: the 26-398 and 26-405. Which one will work for you? I can't say. These pivot bars aren't meant to work on your window, so there's no saying for sure. You'll have to carefully look over the measurements we show for each (especially the hole placement) to determine which, if either, will work.

If you look over our dimensions and find that neither of them will fit in the window, then you'll be better off sticking with the system you have now. Personally, I think you should do that anyway. The Series 140 may work great, but you never can tell what will happen in this industry. I'm a cautious kinda guy and I tend to always stick with whatever hardware was originally installed in the window for peace of mind. It's ultimately up to you!