Right side Casement Operator

A handy person from OH says:
July 28, 2023
Only marking is on the crank knob, 4 screws in the base, approx. 8" arm with wheel on the end. Need 2 right side casement operators.
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Bob from SWISCO responded:
July 28, 2023

Thanks for posting. My initial thought was that this is an older version of something like our 39-027E, which has a 9-1/2" straight arm. See the diagram below.

Dimensions for 39-027e
Dimensions for 39-027e

However, it looks to me like the base of the operator arm might have an offset, or a bend that raises upward. It may just be the age of the device, but please investigate. If it does have this bend, the 49-412 may be the better choice. Take a look and see if you think either of these options could work for you. If something seems off, please let me know by how much.

Dimensions for 39-027e
Dimensions for 39-027e
Alternate view of 39-412
Alternate view of 39-412

In either case, for a new crank handle you can use the 39-114L, sold separately. 
Casement Window Operator, 13-1/2" Arm
Casement Window Operator, 13-1/2" Arm
39-013
$20.70
Crank Handle, 11/32"
Crank Handle, 11/32"
39-114L
$4.42
Ellipse Style Single Arm Operator, 9-1/2"
Ellipse Style Single Arm Operator, 9-1/2"
39-027E
$20.70
Offset Single Arm Operator, 9-1/2
Offset Single Arm Operator, 9-1/2
39-412
$27.20
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