Truth replacement crank and arm

A home owner from New York says:
I'm trying to find the replacement for the crank and the arms for my truth window the item number AP-C40-61X37
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Tom from SWISCO responded:

Please compare your operator to our 39-239B . This looks like a good match to me, but let me know if you had any questions or concerns.

The cover is sold separately. If you think the 39-239B is a good replacement, see the 39-375 or 39-451 depending on what style you'd prefer. You may also need to replace the 39-536 pivot slides

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