Whale Tail Hydrofoil Stabilizer FO2002 – Fits 8–40 HP Outboard Motors & Stern Drives
This marine hydrofoil stabilizer is designed for outboard motors and stern drives rated 8–40 HP. This aftermarket performance enhancement fits most outboards and stern drives within the specified horsepower range, improving stability and performance. Please note the specific exceptions for Mercury 40-60 HP four-stroke models and others listed in the compatibility table.
This part is a direct replacement for the following aftermarket part numbers: SupremeMarine FO2002, UanofCn FO2002, and NorthBoat FO2002.
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Installation Method: Mounts directly onto the anti-cavitation plate (drilling is required).
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Housing Material: Constructed from premium reinforced Nylon-PA66 marine-grade plastic for durability.
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Included Hardware: Comes with 4 sets of stainless steel mounting bolts and nuts.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across aftermarket brands.
| Brand |
Part Number |
| SupremeMarine |
FO2002 |
| UanofCn |
FO2002 |
| NorthBoat |
FO2002 |
Compatible Engine Models
Confirm your engine model/year in the table below.
Outboard Motor Compatibility
| Brand |
Model |
Rated HP |
Stroke |
Years |
Notes |
| All Brands |
Various |
8-40 |
2 & 4-Stroke |
All |
Will fit larger HP except noted exceptions |
Exceptions & Incompatible Models
| Brand |
Model |
Rated HP |
Stroke |
Years |
Notes |
| Mercury |
Various |
40, 50, 60 |
4-Stroke |
All |
Not compatible |
| Volvo |
Various |
All |
All |
All |
Not compatible if exhaust runs through cavitation plate |
| Mercury |
Bravo II |
All |
All |
All |
Not compatible |
| Mercury |
Bravo III |
All |
All |
All |
Not compatible if only one anode on bottom of cavitation plate (rare) |
| Honda |
Various |
200+ |
All |
All |
Not compatible |
| Yamaha |
Various |
350 |
All |
All |
Not compatible |
Technical Specifications
| Specification |
Value |
| Product Type |
Marine Whale Tail Hydrofoil Stabilizer |
| Installation |
Anti-Cavitation Plate Mount (Drilling Required) |
| Connection |
Bolt-On with Included Hardware |
| Housing Material |
Premium Reinforced Nylon-PA66 Marine Grade Plastic |
| Housing Color |
Available in Silver, Blue, or Red |
| Dimensions |
H: 13.5" (343 mm) × W: 14" (356 mm) |
| Weight |
1.32 kg (2.9 lb) |
| Fitting Type |
Anti-Cavitation Plate Mount |
| Thread Size |
Stainless Steel Bolts (4 Sets Included) |
| Other Technical Attributes |
Reduces porpoising, improves planing time, enhances low-speed stability |
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 Instructions
Installation Guide
- Center the hydrofoil on top of the anti-cavitation plate of your outboard motor or stern drive. Ensure it is positioned correctly for optimal performance.
- With the hydrofoil held firmly in place, use a marker to mark the four drill hole locations on the cavitation plate.
- Remove the hydrofoil and carefully drill the four holes using the included 6.5mm drill bit.
- Place the hydrofoil back onto the plate, aligning the holes.
- Insert the provided stainless steel bolts from the top and secure them from the bottom with the nuts.
- Tighten all four bolts securely. Check that the hydrofoil is rigid and does not move before operating your boat.
Troubleshooting & FAQ
How do I know if this hydrofoil will fit my motor?
This hydrofoil is designed to fit most outboard and stern drive motors in the 8 to 40 HP range. However, it is not compatible with Mercury 40-60 HP four-stroke models, certain Volvo Penta drives with exhaust through the cavitation plate, Mercury Bravo II & III drives, Honda 200+ HP outboards, and Yamaha 350 HP outboards. Please carefully review the compatibility exceptions list before purchasing.
What is required for installation?
Installation requires drilling four holes into your motor's anti-cavitation plate. The package includes all necessary mounting hardware, including four sets of stainless steel bolts and nuts, plus a 6.5mm drill bit to simplify the process.
What performance benefits can I expect?
This hydrofoil helps get your boat on plane quicker at lower speeds, maintains lower planing speeds, and improves fuel efficiency. It also enhances stability and maneuverability by reducing or eliminating common issues like porpoising, bow rise, cavitation, and deep-V wander. It is highly recommended for aluminum boats, jon boats, and inflatables.
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.
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Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.