Casey from SWISCO responded:
October 23, 2023
Hello, I would recommend starting by comparing the 39-220B to your operator. See the dimensions from our product pages below. We also offer the 39-221B opposite-handed version. These assemblies are used with the 39-375 and 39-376 handle and cover kits. I would also recommend comparing an undamaged stud bracket to the 39-545 and 39-546 commonly used with these operators. Thank you! Detail of 39-220B
Width measurement
Dimensions for 39-546
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