Truth Casement Window Operator Part No. 45034

I need to replace one of my Truth Casement Window Operators.  The bottom of my Operator has the number, “45034”.  After browsing the SWISCO online catalog, I think a suitable replacement is the “Ellipse Style Single Arm Operator, 9-1/2 Inch”, Product Code: 39-027E with “Option: Clay” paint color coating.  Please review my uploaded photos and information below and tell me if you agree that this is a good replacement or if there is a Product Code (part number) that will match my Operator more closely.  (As my photos show, the shape of my Operator’s case is not elliptical like the case of Product Code: 39-027E.)
I uploaded 6 photos that show various views of my Operator, including a Top View that shows the Operator installed in the casement window (minus the mounting screws and crank handle).
The Product Description for Product Code 39-027E matches my Operator: 9-1/2 inch long arm, measured Nylon roller wheel center to gear center, 11/32” diameter spline, and 3” spacing between the centers of the two mounting screw holes farthest from the gear.  The Nylon roller at the end of the arm is 9/16” in diameter.