Trim Tab Anode for Yamaha 150–200 HP Outboards – Replaces 6K1-45371-01-00 and 6K1-45371-02-00

Product Details

This marine-grade zinc alloy trim tab anode is designed as a replacement for selected Yamaha 150–200 HP outboard applications. The sacrificial anode helps protect exposed underwater metal components from galvanic corrosion and also serves as the adjustable trim tab used to help counteract propeller torque steer.

The supplied application information covers Yamaha 2-stroke L150 and L200 models, including listed model-year variants from 1987 through 1999, as well as selected 4-stroke LZ150, LF150, LZ200, and LF200 models. Always compare the original anode’s shape, mounting location, rotation specification, and part number before ordering.

This aftermarket replacement is listed for Yamaha part numbers 6K1-45371-01-00 and 6K1-45371-02-00, along with the aftermarket references shown below. The 01-00 and 02-00 versions may correspond to different engine applications, including standard- and counter-rotation configurations; verify the required reference for your specific engine.

• Direct bolt-on replacement using a single-bolt mounting point.
• Includes one mounting fastener as listed in the package contents.
• Made from zinc alloy for sacrificial corrosion protection.
• Suitable for marine use; zinc selection should be matched to the water type and the engine manufacturer’s anode requirements.

Part Number Matrix

Use the following references to compare the replacement with the anode currently installed on your outboard.

Aftermarket reference numbers are provided for comparison only. Confirm the physical shape and mounting arrangement before installation.

Engine & Model Compatibility

The following applications are listed with this replacement. Model, year, horsepower, stroke, and rotation conditions should be checked together against the engine identification label and the original part.

Technical Specifications

Product Type

Trim tab anode

Material

Marine-grade zinc alloy

Color

Silver/gray

Installation

Direct bolt-on installation with a single-bolt mount

Mounting

Single-bolt trim tab mounting arrangement

Approximate Weight

1.04 lb (0.47 kg)

Function

Sacrificial corrosion protection and adjustable hydrodynamic trim control

Application

Selected Yamaha 150–200 HP outboards as listed above

What’s in the Box

• 1 x Zinc trim tab anode
• 1 x Mounting bolt

Installation Notes

1. Turn the engine off, disconnect the battery, tilt the outboard up, and secure it before beginning work.
2. Locate the trim tab anode beneath the anti-cavitation plate or at the specified gearcase mounting position.
3. Remove the existing mounting bolt and take off the worn anode.
4. Clean the mounting surface and contact area thoroughly. Remove corrosion, paint, and debris so the anode can make good electrical contact with the gearcase.
5. Position the replacement anode in the same orientation as the original and install the supplied mounting bolt.
6. Tighten the bolt to the engine manufacturer’s recommended torque. Do not overtighten or damage the gearcase threads.
7. After installation, check that the anode is secure and that steering and trim functions operate normally before launching the boat.

Maintenance & FAQ

Safety & Important Information

• Do not rely on horsepower alone to confirm fitment; model, year, stroke, rotation, and part number must also agree.
• Inspect the replacement against the original anode before installation.
• Disconnect the battery and secure the tilted engine during installation.
• Use the manufacturer’s torque specification and do not overtighten the mounting bolt.
• Professional installation is recommended when the mounting threads, gearcase, or steering system are damaged or corroded.

About Sea Sierra

• Marine Replacement Parts — Replacement components selected for common outboard and marine-service applications.
• Application-Focused Information — Use model, year, stroke, rotation, and original part details together when checking fitment.
• Customer Support — Contact support with your engine identification information if you need help comparing the replacement with the original part.