Repair Part 240540 Knob. If you are needing to replace the Knob, we have the part, which is the 240540. Appliance Parts List features parts from many providers and manufacturers. Sometimes we have alternate part numbers to make finding items such as the Knob Assembly easier. We also provide cross referencing such as 240540-APD for use as our referenced part number. This part was originally made for FISHER & PAYKEL.If you need more information regarding the OEM or parts manufacturer, we suggest contacting FISHER & PAYKEL directly.