Thread Chaser / Nut Installer Tool

This tool will remove and reinstall the following spanner / retaining nuts.

Mercury 4.375″ (nut OE numbers 8M2000347, 8M2011027, 79448, 52834, 35912)
Yamaha 111mm (nut OE numbers 6G5-45384-02-00, 6G5-45384-01-00, 6G5-45384-00-00)

This will also operate the Mercury 4.375″ and Yamaha 111mm thread chasers for repairing the damaged threads.

Even though the retaining nut part number used on your application may be listed above, you will need to verify the correct tool part number with those below. Some of the later models have longer and larger diameter driveshafts that this tool may not fit. The part numbers listed above are to be used for reference only.

91-61069T, 91-61069, 18-9858, 90190, 983-110