Mercury - Tool-brg seal nut - 91-8M0173304 Anchor Accessories 2 PieceType-20° or 90° Adjustable

2 PieceType-20° or 90° Adjustable - 2-Piece Black

This sacrificial anode helps shield critical metal components of the lower unit by attracting corrosive elements before they can damage the engine or skeg

refining the alloys and the castings so the protection is both predictable and effective

it’s typically replaced during major engine repairs or rebuilds

Absolutely — the formula flows well in cold temperatures and resists breakdown in heat

Mercury - Tool-brg seal nut - 91-8M0173304 Anchor Accessories 2 PieceType-20° or 90° AdjustableTool brg seal nut WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.