Casey from SWISCO responded:
August 18, 2023
Hello, Your operator resembles the 39-187 and 39-188. Unfortunately, we have never been able to locate a replacement with a 4-1/2" link arm but you may be able to swap the link arm from your old operator and rivet it to the new one using the 62-014. Take a look and thanks for posting! Dimensions for 39-187
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