Description
Performance Metals Shaft Anode 2-3/4" Aluminum | Boat Supply Store
Protect critical underwater drive components from galvanic corrosion with this MIL-DTL 24779 certified Performance Metals 2-3/4" streamlined shaft anode. Engineered with proprietary Navalloy® aluminum, it offers robust sacrificial protection across all water types, including saltwater environments prevalent along the Texas coast. Its two-halves design, incorporating captive stainless steel hardware and a patented 'red spot' wear indicator, simplifies installation and provides a clear visual cue for proactive maintenance planning when the anode has reached 70mm (2-3/4") diameter.
Key Features
- Superior Corrosion Control with MIL-DTL 24779 certified Navalloy® aluminum.
- All-Water Suitability for reliable protection in salt, brackish, and fresh water.
- Effortless Monitoring via patented 'red spot' wear indicator.
- Simplified Installation with a two-halves design.
- Secure Fastening provided by captive stainless steel hardware.
- Durable Construction meeting stringent military specifications.
- Proactive Maintenance planning through visual wear indication.
- Comprehensive Kit including bolts and captured nuts.
Specifications
| Product Specifications | |
|---|---|
| Shaft Diameter | 2-3/4" |
| Material | Aluminum (Navalloy®) |
| Water Type Suitability | Salt, Brackish, Fresh |
| Certification | MIL-DTL 24779 |
| Design | Two-halves |
| Wear Indicator | Patented 'red spot' |
| Hardware Included | Stainless steel with captive bolts and pressed-in nuts |
| Dimension A | 2-3/4" (70mm) |
| Dimension B | 4-3/4" (121mm) |
| Dimension C | 3-5/8" (92mm) |
Who This Is For
Boat owners and marine mechanics seeking a highly durable aluminum shaft anode for universal water conditions and advanced wear monitoring. Ideal for vessels requiring reliable sacrificial protection and simplified maintenance planning.
How It Compares
| Feature | Performance Metals Shaft Anode 2-3/4" Aluminum | TRIDENT Marine 031 |
|---|---|---|
| Material | Aluminum (Navalloy®) | Aluminum |
| Military Specification | MIL-DTL 24779 | Not Specified |
| Wear Indicator | Patented 'red spot' | Typically less capable |
| Water Type Suitability | Salt, Brackish, Fresh | Saltwater, Brackish, Freshwater |
| Shaft Diameter (Max) | 2-3/4" | 2-3/4" |
Common Concerns Answered
What if I lose the included hardware?
This Performance Metals anode includes captive stainless steel hardware and pressed-in nuts, designed for secure attachment and ease of assembly. While sourcing exact replacements for these specific components might require contacting the manufacturer, the robust design minimizes the likelihood of loss during proper installation.
Can this anode wear out too quickly?
Anodes are designed to be sacrificial and will wear down over time as they protect your propeller shaft from corrosion. Accelerated wear in extremely aggressive water conditions is an inherent function of anode performance; the 'red spot' indicator helps you proactively manage replacement schedules.
Is this anode a significant investment?
While the initial cost may be higher than basic anode options, the Performance Metals shaft anode provides superior longevity and advanced features like the 'red spot' wear indicator. This justifies the investment through enhanced protection and simplified maintenance, offering greater long-term value.
Frequently Asked Questions
What is the purpose of a shaft anode?
A shaft anode, also known as a shaft transducer or shaft protector, is a sacrificial metal component designed to corrode preferentially to protect the more expensive metal components of your propeller shaft, propeller, and stern gear from galvanic corrosion in saltwater, brackish, or freshwater environments.
What type of water is this aluminum anode suitable for?
This Performance Metals aluminum anode is specifically formulated and manufactured to MIL-DTL 24779 standards, making it suitable for use in all water types: salt, brackish, and fresh water.
How does the 'red spot' wear indicator work?
The patented 'red spot' wear indicator is a visual cue integrated into the anode. As the anode corrodes and its material is consumed, the red material gradually appears on the surface, indicating the anode's remaining lifespan and signaling when replacement is imminent.
What hardware is included with this anode?
This anode includes all necessary stainless steel hardware for installation, featuring captive bolts and nuts that are pressed directly into the casting, ensuring they remain in place during the mounting process.
How is this anode assembled?
The anode features a two-halves design, allowing it to be easily positioned around the propeller shaft. Once in place, the two halves are secured together using the provided stainless steel bolts and captive nuts, typically tightened with appropriate wrenches.
