Casement operator replacement parts

A handy person from Randolph Ma 02368 says:

I need to replace both of these window operators as in pictures posted. They both have the word "Truth" engraved on the parts. Both operators are for left side crank windows. The long arm on both measures 9-1/2" in length. I am looking to purchase one of each. I do not need any additional parts as in the window arm mount brackets. However, please advise the cost of the Vetter operator "plastic covers" in white and brown with part numbers in the event of wanting to replace any of the cracked ones. Please advise as to the lead time for delivery and any shipping rates that might apply. Thank you, Gary

Thumbnail of the uploaded file named Vetter operator.jpg
Thumbnail of the uploaded file named Vetter operator #2.jpg
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Bob from SWISCO responded:

Hi Gary. For the single arm operator, see if the 39-217 matches up. For the split-arm operator, see our 39-032 or our 39-155. The only difference between these operators is the length of the link arm, so compare both to see which matches with what you need. For both replacements, you can use the 39-107 and 39-114L Cover and Handle. Shipping options will be listed when you input your zip code during check out. Let me know if you have any other inquiries. 

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