03-01988 now points to 107215. Match the equipment model, revision, serial range, voltage, and connector.

• The official F568 parts list maps current part 107215 from prior number 03-01988 to the black rubber-overmold control knob.
• Confirm 1.38-inch OD, 0.25 x 0.156 D-shaft interface, and pointer orientation.
• Confirm compatibility with the installed speed-control switch and current parts-list revision.