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 and rust-free.

The kit includes a pre-drilled aluminum anode that mounts at the bottom of the power trim pump, along with the hardware you need for quick installation. It’s a simple piece of protection that can save you a major repair later.

Key Features

• Purpose: Shields your engine from galvanic corrosion by sacrificing itself before metal parts can corrode.
• Fitment: For Mercury and Mariner outboards — 30/40HP FourStroke, 40–125HP 2-stroke, 75/90HP FourStroke, 115HP 6-cyl (1984–1988), all V6 and OptiMax models, and new 4.6L V8 and 3.4L V6 engines (excluding Verado and SeaPro).
• Kit Contents: Includes one pre-drilled aluminum anode and mounting hardware.
• Material: Marine-grade aluminum alloy works in both saltwater and freshwater.
• Installation: Designed for fast, easy replacement using common tools.

Engine & Boat Compatibility

• Mercury and Mariner outboards (30–125HP, V6, OptiMax, 4.6L V8, 3.4L V6)
• Fits most models except Verado and SeaPro
• Ideal for freshwater, saltwater, and mixed conditions

Performance & Practical Benefits

The 818298T1 anode takes on corrosion so your engine doesn’t have to. By absorbing the electrochemical reaction that naturally occurs in water, it prevents rust and metal pitting on your drive and trim components.

It installs in minutes — no guesswork or special tools. Simply remove the old anode, bolt on the new one, and you’re protected again. Because it’s aluminum, it offers long-lasting protection across all water types while staying lightweight and efficient.

Why Buy OEM

Mercury’s OEM anodes are made from precise aluminum alloys that provide consistent protection without corroding too fast or too slow. Aftermarket anodes often use lower-grade metal that wears unevenly or loses conductivity, leaving critical components unprotected.

A genuine Quicksilver anode kit guarantees the correct alloy blend, perfect fit, and reliable performance — the same protection your motor had from the factory.

FAQ

Q1: What engines fit the Mercury 818298T1 anode kit?
A: It fits Mercury and Mariner outboards from 30–125HP, all V6 and OptiMax outboards, and new 4.6L V8 and 3.4L V6 engines (excluding Verado and SeaPro).

Q2: What’s included in the kit?
A: One pre-drilled aluminum anode and the mounting hardware needed for installation.

Q3: Where does this anode mount?
A: It attaches to the bottom of the power trim pump assembly.

Q4: Can I use it in saltwater?
A: Yes. The aluminum alloy performs well in both saltwater and freshwater.

Q5: How often should it be replaced?
A: Inspect every few months and replace once roughly half the metal has eroded.