Whale Tail Hydrofoil Stabilizer – Fits Outboard Motors 8-40 HP (Replaces FO2002)

Whale Tail Hydrofoil Stabilizer – Fits Outboard Motors 8-40 HP (Replaces FO2002)

This compact, performance-enhancing hydrofoil is designed for small to mid-sized outboard motors and stern drives. It fits most outboard motors from 8–40 HP and can also work with larger motors up to 300 HP, with certain exceptions noted in the compatibility table.

This part is a direct replacement for the following aftermarket part numbers: SeaSierra FO2002, UanofCn FO2002, and NorthBoat FO2002.

• Installation Method: Bolt-on installation requires drilling into the anti-ventilation plate. All necessary mounting hardware is included.
• Construction: Made from durable, UV-resistant marine-grade PA66 reinforced nylon plastic.
• Enhanced Performance: Improves planing speed, reduces cavitation, and increases stability for a smoother ride.

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.

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

Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson Serial Number Guide.

Confirm your engine model/year in the table below. For Suzuki owners, You can review exploded diagrams here to verify part numbers: Suzuki Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 x Hydrofoil Stabilizer (FO2002)
• 4 x Sets of Stainless Steel Screws and Nuts
• 1 x 6.5mm Drill Bit
• 1 x Installation Instruction Manual

Installation Guide

1. Safety First: Ensure the outboard motor is turned off and disconnected from any power source before starting.
2. Position the Hydrofoil: Place the hydrofoil onto the anti-ventilation plate of the motor, ensuring it is centered.
3. Mark Drill Holes: Use a marker to mark the four drilling locations on the plate through the holes in the hydrofoil.
4. Remove the Hydrofoil: Set the hydrofoil aside.
5. Drill the Holes: Using the included 6.5mm drill bit, carefully drill the four marked holes through the anti-ventilation plate.
6. Mount the Hydrofoil: Reposition the hydrofoil, aligning its holes with the newly drilled holes in the plate.
7. Secure the Hardware: Insert the stainless steel screws from the top and fasten them securely with the nuts from the bottom.
8. Final Check: Ensure all bolts are tightened evenly and the hydrofoil is firmly attached with no movement.

Troubleshooting & FAQ

How do I confirm this fits my engine?
This hydrofoil is designed for a broad range of motors, primarily 8-40 HP. Review the "Compatible Engine Models" table to check your brand and horsepower. It is critical to note the exceptions, such as for Mercury 4-Stroke 40, 50, and 60 HP models. For universal applications up to 300 HP, physical measurement and comparison against the product dimensions (13.5" x 14.0") are recommended.

Is drilling always required for installation?
Yes. This hydrofoil is a bolt-on design that requires drilling four holes into your motor's anti-ventilation plate to ensure a secure and stable fit. The kit includes the necessary stainless steel hardware and a 6.5mm drill bit.

What performance benefits can I expect?
A properly installed hydrofoil helps your boat get on plane faster, even at lower speeds. It also reduces or eliminates cavitation and porpoising, leading to improved stability, tighter turns, and better fuel efficiency.

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.