---
product_id: 13948234
title: "Mercury 31640T4 Replacement Aluminum Anode for Select Mercury/Mariner 30-200hp Outboards and MerCruiser Drives"
brand: "mercury"
price: "5664 kr"
currency: ISK
in_stock: true
category: "Mercury"
url: https://www.desertcart.is/products/13948234-mercury-31640t4-replacement-aluminum-anode-for-select-mercury-mariner-30
store_origin: IS
region: Iceland
---

# Sacrificial aluminum anode protects against corrosion in fresh & saltwater Fits 30-200hp Mercury/Mariner outboards & MerCruiser drives Quick, tool-friendly replacement design Mercury 31640T4 Replacement Aluminum Anode for Select Mercury/Mariner 30-200hp Outboards and MerCruiser Drives

**Brand:** mercury
**Price:** 5664 kr
**Availability:** ✅ In Stock

## Summary

> 🛥️ Protect your power, steer with confidence—upgrade your outboard’s defense today!

## Quick Answers

- **What is this?** Mercury 31640T4 Replacement Aluminum Anode for Select Mercury/Mariner 30-200hp Outboards and MerCruiser Drives by mercury
- **How much does it cost?** 5664 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/13948234-mercury-31640t4-replacement-aluminum-anode-for-select-mercury-mariner-30)

## Best For

- mercury enthusiasts

## Why This Product

- Trusted mercury brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Corrosion Shield Tech:** Sacrificial aluminum anode actively prevents galvanic corrosion, extending engine life in all waters.
- • **Effortless Maintenance:** Designed for fast, hassle-free replacement using common tools—get back on the water faster.
- • **Hydrodynamic Trim Boost:** Enhances steering control by providing optimized trim force to your outboard and sterndrive.
- • **Universal Powerhouse Fit:** Seamlessly compatible with Mercury/Mariner 30-200hp outboards and most MerCruiser drives—except Bravo.
- • **Trusted Mercury Engineering:** Backed by decades of precision engineering and rigorous testing for unmatched fit and performance.

## Overview

The Mercury 31640T4 Replacement Aluminum Anode is a precision-engineered sacrificial anode designed to protect Mercury/Mariner 30-200hp outboards and most MerCruiser drives from galvanic corrosion. Its hydrodynamic design aids steering by providing trim force, while its easy-to-install build ensures quick maintenance. Trusted by professionals, this anode extends engine life in both fresh and saltwater environments.

## Description

Mercury Replacement Aluminum Anode 31640T4 is a sacrificial anode that inhibits galvanic corrosion, protecting your engine from damage in both fresh and saltwater applications.

## Features

- Fits Mercury/Mariner 30-200hp outboards plus all MerCruiser drives except Bravo drives
- Helps protect gearcase housing from corrosion as it provides hydrodynamic trim force to your outboard and sterndrive to aid steering
- Each anode is designed for fast and easy replacement with common tools
- Mercury parts and accessories are backed by decades of experience in engineering, testing and manufacturing to provide the best fit, function and performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004QJJMNM |
| Best Sellers Rank | #362,236 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1,664 in Boat Engine Parts |
| Brand Name | MERCURY |
| Customer Reviews | 4.2 4.2 out of 5 stars (92) |
| Date First Available | September 14, 2012 |
| Item Dimensions LxWxH | 6.87 x 5.5 x 3.5 inches |
| Item Package Dimensions L x W x H | 7 x 7 x 6 inches |
| Item Weight | 12.8 ounces |
| Manufacturer | MERCURY |
| Package Weight | 6.4 ounces |
| Part Number | 31640T 4 |
| Suggested Users | unisex-adult |

## Images

![Mercury 31640T4 Replacement Aluminum Anode for Select Mercury/Mariner 30-200hp Outboards and MerCruiser Drives - Image 1](https://m.media-amazon.com/images/I/71g82OuRLIL.jpg)

## Frequently Bought Together

- MERCURY Trim Tab Anode 97 31640T 4
- Quicksilver 858075Q01 Power Trim and Steering Fluid - 32 Oz. Bottle

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**Shop now:** [https://www.desertcart.is/products/13948234-mercury-31640t4-replacement-aluminum-anode-for-select-mercury-mariner-30](https://www.desertcart.is/products/13948234-mercury-31640t4-replacement-aluminum-anode-for-select-mercury-mariner-30)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-09-26*