Can You Help Me Find Window Cranks

A quick learner from USA says:
March 24, 2017
Please see attached photos. I am looking for window cranks for crank-out windows. Need a number of them. Probably would also like to buy related hardware to completely rebuild window mechanisms.
User submitted photos of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
March 29, 2017
You have the old Bilt Best operator setup, which is unfortunately, discontinued and no longer available. You will need to use one of the newer type of operators like the 39-027E and 39-028E or maybe the longer 39-013 and 39-014, depending on the size of the arm. You will also need to install the 39-533 track on your window sashes. You might need to use the services of the carpenter or wood shop to make new wood sill covers, since these operators aren't exact.
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
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
11-3/8" Casement Operator Track, 3 Hole
11-3/8" Casement Operator Track, 3 Hole
39-533
$2.95
Crank Handle, 11/32"
Crank Handle, 11/32"
39-114L
$4.42
Truth Folding Crank Handle, 11/32"
Truth Folding Crank Handle, 11/32"
39-205
$11.70
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How to Replace a Hinge Set in a Casement Window [1080p]
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