NorthBoat FO2002 Outboard Hydrofoil Stabilizer – Fits 8–40 HP Engines

NorthBoat FO2002 Outboard Hydrofoil Stabilizer – Fits 8–40 HP Engines

This hydrofoil stabilizer is designed for outboard motors and stern drives in the 8–40 HP range. Its whale tail design helps improve boat performance by reducing bow rise and porpoising, providing faster planing and enhanced stability at lower speeds.

This is a direct replacement for UanofCn FO2002 and SeaSierra FO2002 hydrofoils.

• Installation Method: Bolt-on installation requires drilling into the cavitation plate.
• Housing Material: Constructed from durable, marine-grade reinforced Nylon-PA66 plastic.
• Included Hardware: Comes as a complete kit with a drill bit and stainless steel mounting hardware.

Compatible Engine Models

Confirm your engine model/year in the tables 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.

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

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.

For Suzuki owners, you can review exploded diagrams here to verify part numbers: Suzuki Parts Diagrams & Catalog.

Compatible Outboard Engines

Stern Drive Compatibility

Technical Specifications

Package Contents

• 1 x Hydrofoil Stabilizer
• 1 x Drill bit
• 4 x Stainless Steel Nuts and Bolts
• 1 x Installation Instructions

Installation Guide

1. Safety First: Before starting, disconnect the engine's negative battery cable to prevent accidental starting.
2. Position the Hydrofoil: Place the hydrofoil onto the anti-cavitation plate of your lower unit. Ensure it is properly centered.
3. Mark Holes: Use a marker to mark the four drilling locations on the plate, using the hydrofoil's mounting holes as a guide.
4. Drill the Plate: Remove the hydrofoil. Carefully drill the four marked holes using the included drill bit.
5. Mount the Hydrofoil: Place the hydrofoil back onto the plate, aligning it with the newly drilled holes.
6. Secure the Hardware: Insert the four included stainless steel bolts from the top and fasten them with the corresponding nuts from below.
7. Tighten Securely: Tighten the nuts evenly until the hydrofoil is firm. Do not overtighten, as this can damage the cavitation plate or hydrofoil.
8. Final Check: Reconnect the battery cable and perform a test run on the water to check for proper performance.

Troubleshooting & FAQ

Q: How do I confirm this fits my engine?

A: This hydrofoil is designed for a wide range of outboard and stern drive engines from 8 to 40 HP. Please review the compatibility tables on this page. Pay close attention to the specific exceptions noted for brands like Mercury, Honda, MerCruiser, and Volvo Penta to ensure it fits your model.

Q: Will this hydrofoil really improve my boat's performance?

A: Yes, it is designed to improve performance in several ways. The whale tail shape helps lift the stern, reducing bow rise and allowing the boat to plane at lower speeds. This also improves stability, fuel efficiency, and can reduce or eliminate porpoising.

Q: What is involved in the installation? Is drilling always required?

A: Yes, installation requires drilling four holes into your engine's cavitation plate. The package includes a drill bit and all necessary stainless steel mounting hardware. While it is a straightforward process, professional installation is recommended if you are not comfortable with the procedure.

Q: Can I install this on a Volvo Penta stern drive?

A: Yes, it is compatible with several Volvo Penta series, including the SX-A, DPS, and 290 series. However, you will need to source longer bolts and fender washers, as the included hardware may not be sufficient. It is not compatible with the Volvo Ocean Series XDP.

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.