Mercury - Quicksilver 818298T1 Aluminum Anode Kit Mercury & Mariner Outboards V6, OptiMax, and 4.6L V8 Engines 818298T1. Overview. Corrosion never sleeps - especially in saltwater. The Mercury 818298T1 Aluminum Anode Kit gives your Mercury or Mariner outboard the protection it needs to fight galvanic corrosion head-on. Designed for a wide range of engines, from smaller 30HP FourStroke models to big V6, OptiMax, and 4.6L V8 outboards, this OEM kit helps your engine's metal components stay solid a