5321-87J00 Suzuki Marine Anode | Genuine OEM Outboard Part

🔧 Product Description

Genuine Suzuki Marine Internal Sacrificial Anode - Correct Part Number: 55321-87J00

Sometimes listed as 5321-87J00 with the leading digit missing; the valid OEM reference is 55321-87J00, later replaced by 55321-87J01.

This internal button-style anode corrodes sacrificially to protect aluminium cooling passages and engine castings from galvanic corrosion.

⚙️ Key Features

• Genuine Suzuki internal sacrificial anode
• Correct OEM number: 55321-87J00
• Protects aluminium engine components
• Suitable for fresh-water and saltwater applications
• Replace when substantially eroded, coated or fractured

🚤 Compatibility

Commonly used on

• Internal cooling-water passages of Suzuki DF-series outboards

Typically suits

• Engine models:
• Selected DF4 through DF300 four-stroke families
• Later engines where the parts diagram specifies 55321-87J01
• Suzuki-manufactured Johnson and Evinrude engines using BRP 5031705
• HP Range: Approximately 4HP-300HP across the complete application family
• Engine Type: Four-stroke outboards
• Year Range: Principal applications approximately 1999-2018, with later service applications
• Model/Serial Note: Quantity and installation position vary substantially by engine. Check every anode location in the model-specific diagram.

🔌 Function

The anode is more electrically active than the protected aluminium components and corrodes in their place.

⚠️ Common Signs of Failure

• More than approximately half of the anode material is consumed
• Anode is cracked or detached
• Heavy oxide coating prevents electrical activity
• Corrosion appears around the anode cover
• Cooling passages show galvanic attack

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 55321-87J01 → Supersedes 55321-87J00

OEM / Related Numbers

• Incorrect abbreviated entry: 5321-87J00
• Correct reference: 55321-87J00
• Current reference: 55321-87J01
• Associated cover gasket: 11265-87E10
• Associated O-ring on applicable covers: 09280-22019

Aftermarket / Verified Equivalents

• BRP / Johnson / Evinrude: 5031705
• Martyr: CM5532187J00Z
• Tecnoseal: 00933
• Tecnoseal / related catalogue reference: CDZ9-162
• RECMAR: REC55321-87J01

📦 Condition

• Genuine Suzuki Marine part
• Brand new
• Supplied in original or equivalent protective packaging