Whale Tail Hydrofoil Stabilizer – Fits Outboard Motors & Stern Drives 40 to 300 HP (FO2003)

Whale Tail Hydrofoil Stabilizer – Fits Outboard Motors & Stern Drives 40 to 300 HP (FO2003)

The NorthBoat FO2003 Whale Tail hydrofoil stabilizer is engineered for a wide range of outboard motors and stern drives rated from 40 to 300 HP. It enhances boat performance by providing lift, reducing planing time, and improving stability at both high and low speeds.

This component is a direct replacement for NorthBoat FO2003 and UANOFCN FO2003 Whale Tail style hydrofoils.

• Installation Type: Drills and bolts directly to the engine's cavitation plate.
• Construction Material: Molded from high-strength, marine-grade reinforced nylon PA66 plastic for durability.
• Hardware Included: Comes as a complete kit with stainless steel mounting hardware.

Compatible Engine Models

Confirm your engine model/year in the table below.

Universal Applications

Specific Compatibility Notes

Technical Specifications

Package Contents

• 1 x Hydrofoil Stabilizer (FO2003)
• 4 x Sets Stainless Steel SS316 Screws and Nuts
• 1 x 6.5mm Drill Bit
• 1 x Installation Instructions

Installation Guide

1. Position the Hydrofoil: Center the hydrofoil on top of the cavitation plate of your outboard motor or stern drive. Ensure it is placed correctly for optimal performance.
2. Mark Drill Holes: With the hydrofoil held firmly in position, use a marker to mark the four mounting hole locations on the cavitation plate.
3. Drill the Holes: Remove the hydrofoil and carefully drill the four marked holes using the included 6.5mm drill bit.
4. Mount the Hydrofoil: Place the hydrofoil back onto the cavitation plate, aligning the holes. Insert the provided stainless steel screws from the top.
5. Secure the Hardware: Attach the nuts to the screws from underneath the cavitation plate and tighten them securely. Check that the hydrofoil is firm and does not move.

Troubleshooting & FAQ

Q: Will this fit my Mercury 50 HP 4-Stroke engine?

A: No, this hydrofoil is not compatible with Mercury 40, 50, or 60 HP 4-stroke outboard models. Please check the compatibility list carefully.

Q: Can I install this on a Volvo Penta sterndrive?

A: Yes, it fits many Volvo Penta models. However, certain series like the SX-A, DPS, 280, and 290 require longer bolts and 1" fender washers (not included). It is not recommended for the Ocean Series XDP or models with exhaust through the cavitation plate.

Q: How does this hydrofoil improve the boat's performance?

A: It provides hydrodynamic lift at the stern, which helps the boat get on plane faster, reduces bow rise during acceleration, and minimizes porpoising. This often results in a smoother ride, improved handling, and better fuel economy by enabling stable cruising at lower RPMs.

Q: OEM vs. Aftermarket?

A: 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.

Q: How fast do you ship and how much does it cost?

A: 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.

Q: What is your warranty and return policy?

A: 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.