Mercury Outboard Retaining Nut Wrench
thingiverse
Works to remove and install the retaining nut on Mercury outboards lower unit. Use a large crescent wrench to turn the tool. Replaces part number 91-91947 wrench. Works for retaining nut 11-87763. Tested specifically on a 1996 40hp Merc. Not sure if its strong enough to torque to spec as I did not have a measuring tool for torque, but it's very strong. I recommend having having a wall line count of 6-8 and 15% infill.
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