SWISCO - The Replacement Hardware Authority

Alcoa Window Parts

A home owner from Ann Arbor, MI says:
I'm looking for replacement parts for my Alcoa windows that were installed when the home was built new around 1996. The windows are white and the spiral balances have a white casing. I've attached a couple of pictures, but I'm not sure what series/model windows I have.
User submitted photo of their Alcoa window.
Profile picture of Donna
Donna from SWISCO responded:
Good Morning,

From your pictures it looks like you will need a series 600 spiral balance. To make sure that the S600 is correct you need to measure the diameter of the white plastic tube. The diameter should be 9/16" (if it is not, let me know).

To choose the correct balance length you will need to measure the length of just the white plastic tube.

You will also need to know which balance tip color to choose. The color of the tip represents the strength of the balance. I cannot see the color of the tip in your pictures. The tip may be hidden in the white plastic covering (it usually sits right a the top). See this related discussion - the user took apart their plastic Alcoa balance and took a picture of the colored tip (the plastic blue part).

Let me know if have any trouble with any of this.
A home owner from Ann Arbor, MI says:
Thanks! They have blue tips and I need a few 29" and some 23". I also plan to order the spiral balance charging tool for tilt windows. Is there anything else I need to complete the repair?

Also, do these come with white casings like the originals?

Profile picture of Paul
Paul from SWISCO responded:
You will want to pick up a 75-006 Spiral Balance Charging Tool if you don't have one already.

As for the white plastic tubes, they are no longer manufactured. Spiral balances are now manufactured and distributed with a more durable metal casing, as shown in the product image. Let us know if you have any additional questions.
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