marvin casement operator

A handy person from Ohio says:
April 19, 2024
my operator looks like your EntryGard Dual Arm Operator 39-031. The numbers stamped on mine differ from that I saw in the video (https://www.swisco.com/videos/view35) which showed an actual window installation near the end (0:43). Especially the short arm (mine has number 20810 vs yours of 20755). The other half of the short arm, that attaches to the operator on my unit has a number of 308411 or 30840L. In any event, mine is clearly an EntryGard operator from Truth from the stamp on the main arm. This is the original operator from a Marvin casement window installed around 1987. I believe that the correct measurement of the main arm is about 10". I'd want to ensure I ordered the right part.
Thumbnail of the uploaded file named Crank arms
Thumbnail of the uploaded file named Stamp
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Casey from SWISCO responded:
April 22, 2024

Hello,

We do not base our recommendations on manufacturer stamp numbers since, as you've noticed, the same part can have a variety of numbers that do not necessarily correspond to a specific style. The determining factor would be how the dimensions compare to yours, paying close attention to the shorter link arm. If you notice any discrepancies, please get back to us with your exact measurements written out compared to the image below. Thank you!

Dimensions for 39-031
Dimensions for 39-031
EntryGard Dual Arm Operator
EntryGard Dual Arm Operator
39-031
$29.70
EntryGard Dual Arm Operator
EntryGard Dual Arm Operator
39-032
$29.70
Truth Folding Handle And Cover Kit
Truth Folding Handle And Cover Kit
39-107FK
$15.45
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