Casement operators

A contractor from Mass says:
August 25, 2023
Hello
I am looking to replace the operators on a twin casement the number on the arm is 40577. Please include all the part numbers that you would advise ordering to replace both operators left and right. Thanks
Mike
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Emily from SWISCO responded:
August 28, 2023

Hi there, Mike.

This should be something we can help with. I'd just like to see a bird's eye view of the entire operator, including the arms, all in one shot. That will help narrow down some options.
A contractor from Mass says:
September 11, 2023
Here are some pics of the operators and arms. Hopefully this helps.
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Emily from SWISCO responded:
September 12, 2023

Thanks for getting back to us! Our 39-028E or 39-255E operators look like a modern version of your old assembly. Look over the dimensions and see if one matches up. For the opposite-handed version, see the 39-027E or 39-254E.

Dimensions for 39-028e
Dimensions for 39-028e

Alternate image for 39-255E
Alternate image for 39-255E
Ellipse Style Single Arm Operator, 9-1/2"
Ellipse Style Single Arm Operator, 9-1/2"
39-028E
$20.70
Ellipse Style Single Arm Operator, 7-1/2"
Ellipse Style Single Arm Operator, 7-1/2"
39-255E
$28.15
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, 9-1/2"
Ellipse Style Single Arm Operator, 9-1/2"
39-027E
$20.70
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