---
product_id: 539616793
title: "Martyr Rudder/Trim Tab Disc Anodes, Stainless Steel Allen Head"
brand: "martyr"
price: "311 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/539616793-martyr-rudder-trim-tab-disc-anodes-stainless-steel-allen-head
store_origin: PL
region: Poland
---

# Precision diecast with ISO 9001 quality 50% longer corrosion protection Impurity-free alloy for max durability Martyr Rudder/Trim Tab Disc Anodes, Stainless Steel Allen Head

**Brand:** martyr
**Price:** 311 zł
**Availability:** ✅ In Stock

## Summary

> 🛡️ Protect your vessel like a pro—longer, stronger, smarter!

## Quick Answers

- **What is this?** Martyr Rudder/Trim Tab Disc Anodes, Stainless Steel Allen Head by martyr
- **How much does it cost?** 311 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/539616793-martyr-rudder-trim-tab-disc-anodes-stainless-steel-allen-head)

## Best For

- martyr enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Metal Defense:** Protects iron, steel, aluminum, magnesium & more with low-cost cathodic protection
- • **Extended Lifespan Shield:** Aluminum alloy outperforms zinc by lasting 50% longer in salt & brackish waters
- • **Marine-Grade Reliability:** Trusted anodes designed specifically for ocean-going vessels and harsh environments
- • **Pure Performance Guarantee:** Crafted free from iron impurities to ensure uncompromised protection
- • **Precision Engineered Quality:** Pressure diecast manufacturing under ISO 9001 standards for consistent reliability

## Overview

Martyr Rudder/Trim Tab Disc Anodes are premium aluminum alloy sacrificial anodes engineered for superior corrosion protection in salt and brackish waters. Offering 50% longer life than traditional zinc anodes, they are impurity-free and pressure diecast under ISO 9001 standards, providing reliable, low-cost cathodic protection for a wide range of marine metals.

## Description

Full description not available

## Features

- Aluminum alloy for Use in salt & brackish (mixed) water, protects 50% longer than traditional zinc anodes
- Martyr Anodes offer maximum protection by maintaining quality alloys, free from impurities like iron, which can compromise performance
- Provides low cost cathodic protection of ocean-going vessels, structures and equipment constructed of iron, steel, aluminum, magnesium, and other metals
- High-quality Martyr anodes are pressure diecast and manufactured to strict quality standards through an ISO 9001 Quality Management System

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Zinc |
| Drive System | Slotted |
| Head Style | Trim |
| Exterior Finish | Aluminum,Stainless Steel,Steel,Zinc |
| Thread Size | Unthreaded |
| Point Style | Hex |
| Metal Type | Zinc |
| Brand | Martyr Anodes |
| Color | magnesium |
| Head Type | Hex |
| Item Weight | 0.72 Kilograms |
| Thread Type | Standard |
| Thread Coverage | Partially Threaded |
| Thread Style | Right Hand |
| Thread Class | 2A |
| Fastener Size | .5 inches |
| Size | .5 H x 3.75 OD x .34 |
| Item Diameter | 0.5 Inches |
| Compatible groove diameter | 2 Inches |
| Number of Pieces | 1 |
| UPC | 628309103545 |
| Global Trade Identification Number | 00628309103545 |
| Item Package Dimensions L x W x H | 9.29 x 6.54 x 2.32 inches |
| Package Weight | 0.74 Kilograms |
| Item Dimensions  LxWxH | 3.9 x 3.8 x 1.6 inches |
| Brand Name | Martyr Anodes |
| Number of Items | 1 |
| Manufacturer | Martyr |
| Part Number | CMR03 |
| Style | Zinc |
| Sport Type | Boating |

## Product Details

- **Item dimensions L x W x H:** 5.1 x 4.8 x 2.5 Centimeters
- **Brand:** Martyr
- **Colour:** Aluminum
- **Item Weight:** 0.11 Pounds
- **Size:** 0.35 L x 1-7/8 OD x 0.2 ID

## Images

![Martyr Rudder/Trim Tab Disc Anodes, Stainless Steel Allen Head - Image 1](https://m.media-amazon.com/images/I/81OdKriMNQL.jpg)
![Martyr Rudder/Trim Tab Disc Anodes, Stainless Steel Allen Head - Image 2](https://m.media-amazon.com/images/I/512iWhnBNDL.jpg)
![Martyr Rudder/Trim Tab Disc Anodes, Stainless Steel Allen Head - Image 3](https://m.media-amazon.com/images/I/11beTa88jqL.jpg)

## Available Options

This product comes in different **Size, Style Name** options.

## Questions & Answers

**Q: Is this a pancake anode? Does it have the top and the bottom anode?**
A: I ordered two not being sure what the configuration was.  These are pancake anodes - flat on one side and domed on the other.  They apparently come in pairs where a QTY of 1 gets you two anodes connected together with a screw that can be easily separated to expose the flat side.  I received two pairs with a QTY of 2.

**Q: The listing says this is for a cmr 5, but the picture shows a cmr 3.  which is it?**
A: It is a CMR5. It is 5" in diameter and 3/4" thick. I put them on my Bennett trim tabs, replacing the old original factory anodes. Fit perfectly.

**Q: Will this work to prevent galvanic corrosion between steel and aluminum that is not in the water?**
A: I don’t believe it will

**Q: How many pieces come with an order, 2?**
A: Yes. 2.

## Frequently Bought Together

- Martyr CMR Rudder/Trim Tab Anodes
- Martyr Anodes, Streamlined Shaft Anodes with Stainless Steel Slotted Head
- Martyr CMDIVERA, Aluminum Alloy Pleasurecraft Divers Dream Slotted Bolt-on

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**Shop now:** [https://www.desertcart.pl/products/539616793-martyr-rudder-trim-tab-disc-anodes-stainless-steel-allen-head](https://www.desertcart.pl/products/539616793-martyr-rudder-trim-tab-disc-anodes-stainless-steel-allen-head)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-23*