Check the listing for details. Yaesu FT2DR FT2DE FT5D Dial Knob 3D Printed Replacement For ra602040a. Condition: New. Listed at 12.00 USD. Many people seem to have the same problem as me - the upper Dial knob is broken and no sources for a replacement part can be found. From what I can tell, the Yaesu replacement part number is RA602040A. I'm selling 3D printed knobs. I went through several prototypes and eventually settled on the design shown in the photos. The knob fits very snugly on the D-shaped post but I've also added a small set screw to hold it in place. This knob is specifically for the FT2DR/DE. I have also tested it on the FT5D and it also fits that model. I have not tested it on any other models. Includes a 1.3mm Allen wrench for tightening the set screw. Printed with high quality high-temperature PETG polymer so it will last a long time and will not melt in a hot car in the sun. Shipped via USPS first class mail. Radio NOT included (obviously).