Unidentified casement window 6 inch operator at least 20 years old

A home owner from Olathe, KS says:
March 28, 2016
I have a 6 inch case ant operator that has broken. The cause is metal fatigue of the arm. However, I have not been able to identify the manufacturing company. I see no place to add a picture so I will email you. I have a contract to sell my home but I need a replacement part asap. Thank you This part is at least 20 years old.
User submitted a photo of a window operator.
A home owner from Olathe, KS says:
March 29, 2016
Here is another photo on grid paper
User submitted a photo of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
March 30, 2016
It looks like you have an older style Bilt Best window operator. These are no longer available, but take a look at our 39-254E and 39-255E. These have a 7-1/2" arm. Match either of these up to your operator to see which one would work in your window. Due to how old yours is, they may require some adaptation to install. You will also need a new handle like our 39-114L, and new track like our 39-533.
Ellipse Style Single Arm Operator, 7-1/2"
Ellipse Style Single Arm Operator, 7-1/2"
39-254E
$28.15
Ellipse Style Single Arm Operator, 7-1/2"
Ellipse Style Single Arm Operator, 7-1/2"
39-255E
$28.15
Crank Handle, 11/32"
Crank Handle, 11/32"
39-114L
$4.42
11-3/8" Casement Operator Track, 3 Hole
11-3/8" Casement Operator Track, 3 Hole
39-533
$2.95
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