Hydrofoil Stabilizer – Fits Outboard and Stern Drive Motors 5–150 HP (Replaces SeaSierra FO2001, UanofCn FO2001)
Hydrofoil Stabilizer – Fits Outboard and Stern Drive Motors 5–150 HP (Replaces SeaSierra FO2001, UanofCn FO2001) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Hydrofoil Stabilizer – Fits Outboard and Stern Drive Motors 5–150 H...
Product Details
This SeaSierra Hydrofoil Stabilizer is designed for outboard and stern drive motors ranging from 5 to 150 HP. It enhances performance by improving planing, stability, and fuel efficiency. It is compatible with a wide array of engines including Mercury, Johnson, Evinrude, Yamaha, Honda, Suzuki, and Tohatsu (both 2-stroke and 4-stroke models).
This part serves as a direct replacement for SeaSierra FO2001 and UanofCn FO2001 references.
- Installation Method: Transom Mount (Drilling Required)
- Housing Material: UV-Resistant Reinforced Nylon PA66 Plastic
- Included Hardware: Comes with stainless steel mounting screws, nuts, and a drill bit.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| SeaSierra | FO2001 |
| UanofCn | FO2001 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | HP Range | Engine Type |
|---|---|---|
| Mercury | 5-150 HP | 2-Stroke, 4-Stroke |
| Johnson | 5-150 HP | 2-Stroke, 4-Stroke |
| Evinrude | 5-150 HP | 2-Stroke, 4-Stroke |
| Yamaha | 5-150 HP | 2-Stroke, 4-Stroke |
| Honda | 5-150 HP | 2-Stroke, 4-Stroke |
| Suzuki | 5-150 HP | 2-Stroke, 4-Stroke |
| Tohatsu | 5-150 HP | 2-Stroke, 4-Stroke |
| Mercruiser | - | Stern Drives |
| OMC | - | Stern Drives |
Technical Specs
- Product Type
- Hydrofoil Stabilizer
- Installation
- Transom Mount
- Housing Material
- Marine Grade Nylon PA66 Plastic
- Available Colors
- Blue, Black, Gray, Yellow, White
- Dimensions
- H: 10-1/4 inches (260 mm), W: 8-1/4 inches (210 mm)
- Weight
- 2.4 pounds (1.09 kg)
- Maximum Horsepower
- 150 HP
- Compatible Engine Type
- 2-Stroke, 4-Stroke
- Package Dimensions
- 14.09 × 8.78 × 1.34 inches (358 × 223 × 34 mm)
What’s in the Box
- 1 x Hydrofoil Stabilizer (FO2001)
- 4 x Sets Stainless Steel Screws and Nuts
- 1 x 6.5mm Drill Bit
- 1 x Installation Instruction
Installation Notes
- Disconnect the engine's battery for safety before starting work.
- Center the hydrofoil on top of the anti-cavitation plate of your outboard or stern drive. Ensure it is positioned correctly according to the manufacturer's instructions for optimal performance.
- With the hydrofoil held firmly in place, use a marker to mark the drilling locations through the mounting holes.
- Remove the hydrofoil and carefully drill the marked holes using the included 6.5mm drill bit.
- Place the hydrofoil back onto the plate, aligning the holes. Insert the stainless steel screws and fasten them securely with the provided nuts.
- Tighten all bolts evenly, but do not over-tighten, as this could damage the plate or the hydrofoil. Check for a snug and secure fit.
Troubleshooting & FAQ
What are the main benefits of installing a hydrofoil?
A hydrofoil helps your boat get on plane faster, especially with heavier loads. It also improves stability, reduces porpoising (bow bouncing), and can enhance fuel efficiency by allowing the boat to stay on plane at lower RPMs.
Will this fit my specific engine model?
This hydrofoil is designed for universal fit on most outboard and stern drive motors from 5 to 150 HP. The key is to ensure your engine's anti-cavitation plate is large enough to accommodate the hydrofoil's dimensions (10-1/4" x 8-1/4"). Always measure your plate before ordering.
Is drilling into my engine's cavitation plate required?
Yes, installation requires drilling four holes into the anti-cavitation plate. All necessary stainless steel mounting hardware and a drill bit are included in the package to complete the installation.
What are signs that my old hydrofoil might need replacement?
Inspect your current hydrofoil for cracks, warping, or significant damage, especially around the mounting points. A compromised hydrofoil can reduce performance or break off, so it's best to replace it if you notice any structural issues.
Can this hydrofoil cause any negative effects on my boat?
When installed correctly on a compatible motor, a hydrofoil should improve performance. However, incorrect installation or using it on an overpowered engine can potentially affect handling. It's crucial to follow instructions and use it within the 150 HP limit.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
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