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

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

This marine-grade hydrofoil stabilizer fits most outboard motors and stern drives from 8 to 40 HP, including both 2-Stroke and 4-Stroke engines. It offers universal compatibility for a wide range of models and also fits many outboards and stern drives larger than 40 HP. Please note, it is not compatible with Mercury 4-Stroke 40HP, 50HP, and 60HP models.

This part is a direct replacement for SeaSierra part numbers FO2002 and FO002.

• Installation Method: Mounts directly to the anti-cavitation plate using the provided hardware.
• Housing Material: Constructed from high-strength, marine-grade Nylon PA66 plastic for durability.
• Complete Kit: Includes stainless steel mounting hardware and a drill bit for convenient installation.

Part Number Cross-Reference

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

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

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

Installation Guide

1. Ensure the engine is off and the boat is securely trailered or docked. Disconnect the engine's negative battery cable for safety.
2. Center the hydrofoil on the anti-cavitation plate of your outboard or sterndrive. Ensure it is positioned for optimal water flow and does not interfere with the propeller.
3. Use a marker to carefully mark the four drilling locations on the plate through the mounting holes of the hydrofoil.
4. Remove the hydrofoil and use the provided 6.5mm drill bit to drill the four marked holes through the anti-cavitation plate.
5. Place the hydrofoil back onto the plate, aligning it with the newly drilled holes.
6. Insert the provided stainless steel screws and nuts and tighten them securely. Do not overtighten, as this could damage the plate.

Troubleshooting & FAQ

How do I know if this hydrofoil will fit my engine?

This hydrofoil is designed for universal fitment on most outboard and sterndrive motors from 8 to 40 HP. It also fits many larger engines, with the specific exception of Mercury 4-Stroke 40HP, 50HP, and 60HP models. Always measure your anti-cavitation plate and compare it to the hydrofoil's dimensions (H: 13.39" × W: 13.7") to ensure a proper fit.

What is the main benefit of installing a hydrofoil?

A hydrofoil helps your boat get on plane faster, reduces porpoising and cavitation, and can improve stability and fuel efficiency at lower speeds. The crescent-shaped design of this model is engineered to channel water for maximum lift and control.

What tools are required for installation?

The package includes the necessary stainless steel mounting hardware (screws and nuts) and a 6.5mm drill bit. You will need a power drill and basic hand tools to tighten the fasteners.

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.