Yanmar S Drive collar anode - code: 5121005 - Motomarine

Collar anode Yanmar S Drive Motomarine (code 5121005)

The’collar anode Motomarine with code 5121005 is a spare part designed for use on Yanmar Sail-Drive / S Drive. It is a consumable component used in the nautical field for routine maintenance of the propulsion unit, aiming to help protect metal parts exposed to the marine environment.

Product identification

• Type: collar anode
• Declared application: engines Yanmar Sail-Drive / S Drive
• Product code: 5121005
• Supplier: Motomarine S.R.L.

Note on compatibility

The sheet indicates use on Yanmar Sail-Drive in the 20–60 HP. range. To avoid errors, it is advisable to verify the match by code 5121005 and comparison with the removed anode (shape and installation point), or by consulting the documentation of your Sail-Drive.

Typical onboard applications

• scheduled maintenance of the Sail-Drive, with replacement of the anode when worn;
• storage and preparation for the season, when checks are performed on the leg, propeller, and submerged components;
• restoration after inspection, when the anode is worn or no longer efficient;
• ordinary management of galvanic protection in the presence of water immersion (sea or inland waters), according to onboard practices.

Operational advantages

• More organized maintenance: a replacement identified by code facilitates reordering and planning of interventions.
• Immediate visual check: the anode is a simple indicator of the consumption status and the system's exposure to galvanic phenomena.
• Reduction of unexpected downtime: including anode replacement in control routines helps avoid unscheduled corrective interventions.
• Consistency with onboard procedures: anode replacement is part of the typical care activities for the Sail-Drive, along with inspections and periodic checks.

When to check the anode

• During seasonal checks or during hauling/storage.
• After prolonged periods in water or in the presence of conditions that may increase galvanic activity (e.g., stays in marina with many electrical users).
• When obvious signs of wear or deterioration of the installed anode are noticed.

Good replacement practices

• Code verification: use the reference 5121005 to ensure the correct match of the replacement part.
• Comparison with the removed part: check shape and mounting point before installation.
• Clean installation: make sure the seat and contact surfaces are in suitable condition, according to the procedures provided for the Sail-Drive.
• Final check: after installation, verify that the anode is correctly positioned and stable.

Notes on choice and responsibility

Compatibility may vary depending on the Sail-Drive configuration and year/model. If unsure about the correct replacement, it is advisable to rely on code 5121005 and, if necessary, request technical support by providing the engine/Sail-Drive data and photographs of the existing component. In case of doubts about the installation, contact qualified personnel.

FAQ – Frequently Asked Questions

Is this anode compatible with Yanmar Sail-Drive / S Drive?

The product is indicated as a collar anode for Yanmar Sail-Drive / S Drive applications. To confirm compatibility with your system, check the code 5121005 and compare the shape and mounting point with the installed anode or the Sail-Drive documentation.

What is the Motomarine spare part code?

The product/supplier code reported for this collar anode is 5121005.

For which engine powers is it indicated on the datasheet?

The existing description indicates for Yanmar Sail-Drive engines 20–60 HP. It is still advisable to always verify the match through code and installed component.

When is it advisable to check or replace the collar anode?

Generally, the anode is checked during periodic maintenance, during hauling/storage, or when obvious signs of wear are noticed. The timing depends on the conditions of use and the navigation environment.

How can I avoid buying the wrong anode?

Use reference 5121005 for identification and, if possible, compare the new anode with the removed one (shape and location). In case of doubts, provide the Sail-Drive data and photos of the component for verification before ordering.