Marine-grade aftermarket gearbox sacrificial anode for selected 75–300 HP Mercury and Mariner 2-stroke outboard engines.

Designed to help protect the gearbox, lower unit and underwater metal components against galvanic corrosion.

An ideal replacement during routine outboard maintenance or when existing anodes become worn.

Main Part Number: 826134Q

Available in Zinc or Aluminium, with the option to purchase 1 or 2 anodes.

Choose Your Anode Material

Zinc Anode

Traditional sacrificial anode material
Particularly suitable for saltwater applications
Suitable for installations using zinc anodes

Aluminium Anode

Marine-grade aluminium alloy
Suitable for saltwater and brackish water applications
Suitable for installations using aluminium anodes

Please follow the engine manufacturer's recommendations when selecting anode material.

Fitment – Mercury / Mariner Outboards

Suitable for selected 75–300 HP 2-stroke outboard engines using the corresponding gearbox anode.

Common Horsepower Applications

75 HP – Selected 2-Stroke
80 HP – Selected 2-Stroke
90 HP – Selected 2-Stroke
100 HP – Selected 2-Stroke
115 HP – Selected 2-Stroke
125 HP – Selected 2-Stroke
135 HP – Selected 2-Stroke V6
140 HP – Selected 2-Stroke
150 HP – Selected 2-Stroke V6
175 HP – Selected 2-Stroke V6
200 HP – Selected 2-Stroke V6
225 HP – Selected 2-Stroke V6
250 HP – Selected 2-Stroke
275 HP – Selected 2-Stroke
300 HP – Selected 2-Stroke

Engine Families

Applications may include selected:

Mercury / Mariner conventional 2-stroke models
Mercury V6 2-stroke outboards
Mercury EFI 2-stroke models
Mercury OptiMax models

Important: The horsepower list identifies potential applications within the supplied 75–300 HP range. It does not mean every engine listed uses this anode.

Compatibility must be confirmed using the original part number, engine serial number and gearbox configuration.

Replaces Mercury / Quicksilver Part Numbers

826134Q – Main product reference

OEM part numbers are used for identification and compatibility reference only.

Product Details

Product Type: Gearbox / Lower Unit Sacrificial Anode
Material: Zinc or Aluminium
Application: Mercury / Mariner Outboards
Horsepower Range: Selected 75–300 HP
Engine Type: 2-Stroke
Location: Gearbox / Lower Unit
Purpose: Galvanic corrosion protection
Quality: Marine-grade aftermarket replacement
Quantity Options: 1 Piece or 2 Pieces

Package Includes

Choose your preferred option:

Zinc – 1 Piece: 1 × Zinc Gearbox Anode
Zinc – 2 Pieces: 2 × Zinc Gearbox Anodes
Aluminium – 1 Piece: 1 × Aluminium Gearbox Anode
Aluminium – 2 Pieces: 2 × Aluminium Gearbox Anodes

Mounting hardware is not included unless otherwise specified.

Please note: The 2-piece option contains two identical anodes. It is not a complete engine anode kit.

Important Compatibility Information

Before ordering, please check:

Exact Mercury / Mariner engine model
Engine horsepower and stroke type
Engine production year
Engine serial number
Gearbox configuration
Original anode part number
Existing anode shape and dimensions
Required anode material

If the part looks the same as yours, this does not always mean it is the correct part for your outboard.

Anodes should be inspected regularly and replaced when significantly worn.

If unsure, please contact SSI Marine with your engine model and serial number for assistance.

Why Buy From SSI Marine?

Workshop-tested aftermarket & OEM-spec parts
Same-day dispatch before 1 PM Monday–Friday
Royal Mail Tracked 24
UK stock – collection available from Leigh, Greater Manchester
Technical support from experienced outboard specialists

Buyer Responsibility

Please confirm compatibility with your exact Mercury / Mariner engine model, serial number and gearbox configuration before purchase.

75–300 HP Mercury Mariner Outboard Gearbox Anode 826134Q – Zinc / Aluminium – 1 or 2 Pieces