Trim Tab Anode – Fits Yamaha Outboard 50–90 HP (Replaces 67F-45371-00-00, 6K5-45371-00)

Trim Tab Anode – Fits Yamaha Outboard 50–90 HP

This trim tab anode is designed for a wide range of Yamaha 2-stroke and 4-stroke outboard engines from 50 to 90 HP, manufactured between 1996 and 2016. It serves as a direct replacement for multiple OEM and aftermarket part numbers, ensuring broad compatibility for models including the T50, T60, F70, F75, F80, F90, and F100 series.

This component is a sacrificial anode that protects the lower casing and drive from galvanic corrosion. It is manufactured from a high-grade zinc alloy that meets Mil-Spec A-18001K standards for reliable performance in marine environments.

• Installation Method: Simple bolt-on design for easy replacement.
• Primary Function: Sacrificial anode for essential corrosion protection.
• Housing Material: Mil-Spec A-18001K compliant zinc alloy.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Technical Specifications

Package Contents

1 x Trim Tab Anode (67F-45371-00-00)

Note: Mounting screw is sold separately.

Installation Guide

1. Safety First: Ensure the engine is turned off and the boat is securely positioned on a trailer or lift.
2. Locate Anode: Identify the old trim tab anode on the underside of the anti-cavitation plate of the lower unit.
3. Remove Old Anode: Use the appropriate socket or wrench to loosen and remove the mounting bolt securing the old anode.
4. Clean Surface: Thoroughly clean the mounting surface on the lower unit, removing any corrosion, residue, or old sealant. A clean metal-to-metal connection is critical for proper function.
5. Position New Anode: Place the new trim tab anode onto the cleaned surface, aligning the bolt hole.
6. Secure New Anode: Insert and securely tighten the mounting bolt. Do not overtighten.
7. Check for Wear: Regularly inspect the anode for signs of corrosion. It should be replaced when it is approximately 50% consumed.

Troubleshooting & FAQ

How do I confirm this anode fits my specific engine model?
First, check your engine's model and year against the compatibility table provided. Second, cross-reference your existing part number with our list of direct replacements. If your model is listed but the part number does not match, please verify with your service manual or contact us for assistance.

How often should I replace my trim tab anode?
Anodes should be inspected during routine pre-season maintenance and replaced when they are 50% eroded. The rate of corrosion depends on water salinity, temperature, and electrical currents. Operating in saltwater will require more frequent replacement than freshwater.

What are the signs a trim tab anode needs replacing?
Visible signs include severe pitting, significant reduction in size, or crumbling. If the anode appears white and chalky or is more than half of its original size gone, it is no longer providing adequate protection and must be replaced immediately to prevent costly damage to your lower unit.

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.