Aluminum Anode Set – Fits Yanmar Marine Diesel Engines (Replaces TENKITYANMARSTDAL)

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Product Details

This aluminum Anode Set – Fits Yanmar Marine Diesel Engines (Replaces TENKITYANMARSTDAL) provides essential protection against galvanic corrosion for multiple Yanmar marine diesel engine models. The kit is specifically designed for use in saltwater and brackish water environments, safeguarding critical engine components.

It serves as a direct replacement for Tecnoseal part number TENKITYANMARSTDAL.

Engineered for direct replacement of OEM anodes.
Provides sacrificial protection against galvanic corrosion.
Designed for use in saltwater and brackish marine environments.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand	Part Number
Tecnoseal	TENKITYANMARSTDAL

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand	Model	Rated HP	Stroke	Years	OEM Part No.	Notes
Yanmar			4-Stroke		TENKITYANMARSTDAL	Standard diesel marine engines

Technical Specs

Product Type: Anode Set (Sacrificial Anodes Kit)
Installation: Direct replacement for OEM anodes
Fuel Type: Diesel (Marine)
Housing Material: Aluminum
Box Dimensions: 10.0" H x 14.0" W x 25.0" L
Fitting Type: Various (Kit contains multiple anodes)
Thread Size: Various depending on specific mounting locations
Operating Temperature: Marine environment (salt/brackish water)
Other Technical Attributes: Sacrificial protection against galvanic corrosion

What’s in the Box

Multiple aluminum anodes for various mounting locations on Yanmar marine diesel engines.

Installation Notes

Disconnect the vessel's battery before starting work.
Locate and access the existing anodes on the engine block, heat exchangers, and gear housing.
Remove the old, corroded anodes. Inspect the threads and mounting surfaces.
Thoroughly clean the mounting surfaces to ensure a good electrical connection. Poor contact reduces the anode's effectiveness.
Install the new anodes from the kit into their corresponding locations. Ensure they are tightened securely.
Do not apply paint, grease, or thread sealant to the anodes or their mounting surfaces.
Once all anodes are replaced, reconnect the battery.

Troubleshooting & FAQ

How often should I replace my engine anodes?

Anodes should be inspected regularly and replaced when they are approximately 50% consumed. For many recreational vessels, this means an annual replacement, but usage and water conditions can affect corrosion rates.

Can I use this aluminum anode kit in freshwater?

No. Aluminum anodes are specifically formulated for saltwater and brackish water. Using them in freshwater can lead to the build-up of an oxide layer that passivates the anode, rendering it ineffective. For freshwater, use a magnesium anode kit.

What are the signs that my anodes have failed or are missing?

Rapid and unusual corrosion on underwater metal parts, such as propellers, shafts, rudders, and through-hulls, is a primary indicator of failed or missing anodes. Regular visual inspection of the anodes themselves is the best preventative measure.

Why does the kit include anodes of different shapes and sizes?

Marine diesel engines have several different components that require galvanic protection, each with its own specific anode size and mounting type (e.g., pencil anodes for heat exchangers, collar anodes for shafts). This kit includes the necessary variety for comprehensive protection.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
This is an aftermarket replacement, not an OEM component.
Professional installation is recommended for safety and performance.

About Sea Sierra

Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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