Description

The Reliance X-40 is a zinc hull anode designed for bolt-on installation, providing reliable sacrificial corrosion protection for boat hulls and bonded underwater metals in saltwater environments. Its streamlined rectangular profile ensures strong surface contact and consistent current distribution across the hull.

Manufactured from high-purity zinc alloy, the X-40 protects critical components by corroding first—helping prevent costly damage to your vessel.

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Key Features

• Marine-grade zinc (saltwater optimized)
• Bolt-on hull anode design
• High-purity alloy for consistent performance
• Excellent electrical contact for effective protection
• Durable casting with long service life

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Application / Compatibility

Designed for:

• Hull-mounted corrosion protection
• Bonded underwater metal systems

Common on:

• Fiberglass boats with bonding systems
• Steel and aluminum hull vessels
• Commercial and recreational boats

Protects:

• Hull plating
• Through-hull fittings
• Struts, shafts, and rudders (via bonding system)

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Serial Number Fitment Notice

Always confirm:

• Mounting hole spacing
• Anode size and surface area required
• Compatibility with your vessel’s bonding system

Proper sizing ensures effective corrosion protection.

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When This Part Needs Replacement

• Anode is 50% or more consumed
• Uneven or accelerated wear
• Poor electrical contact
• Routine seasonal inspection

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Installation Notes

• Install on clean, bare metal surface
• Ensure strong electrical connection to bonding system
• Do not paint the anode
• Use proper marine-grade fasteners
• Inspect regularly in saltwater use

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Alternate / Superseded Part Numbers

• Reliance: X-40
• Comparable hull anodes available in aluminum and magnesium
• Cross-reference sizes may vary by manufacturer

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Parts Desk Insight

Hull anodes like the X-40 protect everything tied into your bonding system—not just the hull itself. If one area is wearing faster than others, it may point to bonding issues or stray current in the system.

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Shipping

Shipping: Ships same or next day for fast Canada wide shipping.