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Get nuts! We've seen too many old, reused, and worn-out Nyloc nuts loosen causing lower units and gearcases to work their way free. We've seen too many wrongly sized washers used to secure gearcases that have gotten wedged or gone missing. 


The result can be a broken cavitation plate, lost lower unit, or worse.


This Mercury 2-Stroke V6 outboard Lower Unit Fastener Kit includes all-new stainless Nyloc nuts, OEM spec thick washers in stainless, and the stainless bolt required to swap out your existing hardware.


Part Numbers

11-859116, 12-35935


Includes one (1) Lower Unit Fastener Kit with twelve (12) pieces.


Contact Mike Hill at

12 Lower Unit Nuts + Washers + Bolt Kit

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