window cranks

A handy person from Santa Monica CA says:
October 5, 2020
Please advise if you have these exact systems for replacement.
Long arm is 9 1/2 ". Crank base is 4" wide and 1.5 " deep.
Need it for left opening window as well as right opening window. ( Pict.# 2916, 2917 ). Part # 20810

The 3rd window are pict. #2918, 2919, 2920. (9 1/2" long arm. Base5")

Thumbnail of the uploaded file named IMG_2916.JPG
Thumbnail of the uploaded file named IMG_2917.JPG
Thumbnail of the uploaded file named IMG_2918.JPG
Thumbnail of the uploaded file named IMG_2919.JPG
Thumbnail of the uploaded file named IMG_2920.JPG
Profile picture of Bob
Bob from SWISCO responded:
October 8, 2020

For the straight-arm operator, see if the 39-027E and 39-028E matches up. For the dual-arm operator, see our 39-031 & 39-032, or our 39-155 & 39-156. Compare all the dimensions, including the arm dimensions, to see if either set matches up. 
Ellipse Style Single Arm Operator, 9-1/2"
Ellipse Style Single Arm Operator, 9-1/2"
39-027E
$20.70
Ellipse Style Single Arm Operator, 9-1/2"
Ellipse Style Single Arm Operator, 9-1/2"
39-028E
$20.70
EntryGard Dual Arm Operator
EntryGard Dual Arm Operator
39-031
$29.70
EntryGard Dual Arm Operator
EntryGard Dual Arm Operator
39-032
$29.70
Caradco Window Crank, 9-1/2"
Caradco Window Crank, 9-1/2"
39-155
$29.85
Caradco Window Crank, 9-1/2"
Caradco Window Crank, 9-1/2"
39-156
$29.85
Anatomy of a casement window
Anatomy of a casement window
VIDEO
WATCH >
Watch How To Repair A Casement Window Crank Operator
Watch How To Repair A Casement Window Crank Operator
VIDEO
WATCH >
Connecting a casement window operator to stud bracket
Connecting a casement window operator to stud bracket
VIDEO
WATCH >
How to Orient a Dual-Arm Operator
How to Orient a Dual-Arm Operator
VIDEO
WATCH >
How to identify casement and awning operators
How to identify casement and awning operators
GUIDE
READ >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.