Need to buy parts, stripped crank

A home owner from Chicago, IL says:
June 20, 2020
US PAT 4505601.
40223
40063 both numbers listed on inside.
40050 listed on arm, also "TRUTH" with an arrow
Need 4 right crank and 4 left crank

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Casey from SWISCO responded:
June 24, 2020

Hello,

This looks like a rear-mount operator. You can start by comparing the 39-022 and 39-023, which have 11" long arms. I'm not sure how long your arm is, so I would recommend taking some measurements to see how they compare. Thanks for posting!
A home owner from Chicago, IL says:
June 24, 2020
Mine is 9 1/2" arm, do you carry this option?
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Casey from SWISCO responded:
June 24, 2020

This will take a bit more research since we do not have an operator in this style with a 9-1/2" arm. The arm of your operator also has an offset to it, which could be problematic. I'm going to have a few of my senior experts review your photos and see if there is anything else that we can recommend for you. We will reach out as soon as more information is available. 
Rear Mount Casement Operator, 11"
Rear Mount Casement Operator, 11"
39-022
$65.29
Rear Mount Casement Operator, 11"
Rear Mount Casement Operator, 11"
39-023
$65.29
Window Crank Operator, 9"
Window Crank Operator, 9"
39-001
$17.45
Window Crank Operator, 9"
Window Crank Operator, 9"
39-002
$17.45
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