We are wanting to replace a few Marvin awning control arms.

Thanks for reaching out. Your operator is likely to be a match for the 39-348 Sill Mounted Awning Operator. Although, to determine if this is the correct replacement, you'll need to carefully review and compare the dimensions below.

The compatible hardware and accessories can be found tagged below this thread. The clips will come on the operator arms.

detail of 39-348