Need replacement hardware

A home owner from Oakville, Ontario, canada says:
June 25, 2022
Circa 1988 window casement operator. No idea how to spec replacement. Please assist.
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Emily from SWISCO responded:
June 28, 2022

Hello there!

Start by taking a look at our 39-027E and 39-028E operators. Look over our dimensions and compare them with yours to see if these match up to your original assembly. 
A home owner from Oakville, Ontario, canada says:
June 29, 2022
Hi Emily,
thanks for the info - quite helpful.
I compared the measurements, and find that the 39-027E could be a good match, except that the operator is too short - mine is 13" in length. Do you have a different model to recommend?
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Emily from SWISCO responded:
June 29, 2022

Sure, we don't have an operator in this style with a 13" long arm but see our 39-013 and 39-014. The arm for these measures 13-1/2" long when measured from wheel center to gear center. Take a look and see if this is a better match. 

Dimensions for 39-013
Dimensions for 39-013
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, 9-1/2"
Ellipse Style Single Arm Operator, 9-1/2"
39-027E
$20.70
Casement Window Operator, 13-1/2" Arm
Casement Window Operator, 13-1/2" Arm
39-013
$20.70
Casement Window Operator, 13-1/2" Arm
Casement Window Operator, 13-1/2" Arm
39-014
$20.70
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