andersen window operator

A quick learner from la jolla OCEAN environmnet says:
HELP!!! I am trying to replace all crank/hinge hardware on (7) left casement (20 inch) windows, and (5) right hand casement windows...

The part number I see on the left ones are: 7168-18, and on the right 7168-16.
I have ordered: Hinges 1361461 and 1361463 for the left windows, and 1361460 and 1361462 for the right windows... but am at a loss on what cranks to order... I just canceled my order with you thinking that I had ordered wrong, but now am thinking that was correct (????) can you help clarify what I should be ordering and whether I should be ordering anything "corrosion resistant" due to water proximity? thank you.
User submitted photo of window operator.
Profile picture of Mike
Mike from SWISCO responded:
The crank handle that works with the 39-146 and 39-147 Andersen Operators are the 39-286 Replacement Handle.
A quick learner from Bristol, CT says:
We have the same crank as the picture above. The cover to the crank split in half. Does that mean we need to replace the whole unit or just the cover? It may be item #39-146 of the Anderson window.
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Dave Sr. from SWISCO responded:
Please take a look at our 39-154 Andersen operator cover. Do you think this would fit over your existing operators? If you aren't sure, please upload a few pictures of them for us to look at.
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