Hydrofoil Stabilizer – Fits Outboard Motors & Stern Drives 5-150 HP (Replaces Uanofcn FO2001, SeaSierra 19HS)
Hydrofoil Stabilizer – Fits Outboard Motors & Stern Drives 5-150 HP (Replaces Uanofcn FO2001, SeaSierra 19HS) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
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Hydrofoil Stabilizer – Fits Outboard Motors & Stern Drives 5-15...
Hydrofoil Stabilizer – Fits Outboard Motors & Stern Drives 5-150 HP (Replaces Uanofcn FO2001, SeaSierra 19HS) is backordered and will ship as soon as it is back in stock.
Product Details
This universal Hydrofoil Stabilizer enhances performance and stability for a wide range of boats. Designed for 5-150 HP outboard motors and stern drives, it is suitable for boats powered by engines up to 200 HP. Its dorsal fin design improves running balance, provides faster planing, and ensures a smoother ride by eliminating bow rise and porpoising.
This part is a direct replacement for Uanofcn FO2001 and SeaSierra 19HS.
- Bolt-on installation requires drilling and uses the included stainless steel hardware.
- Constructed from high-strength, marine-grade reinforced Nylon PA66 plastic for durability.
- The kit includes a hydrofoil, mounting screws, nuts, and a drill bit for a complete setup.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Uanofcn | FO2001 |
| SeaSierra | 19HS |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model Type | Rated HP | Application | Notes |
|---|---|---|---|---|
| All Brands | Outboard Motors | 5–150 HP | Universal fit | Not compatible with Volvo Penta 280/290 outdrives and BMW Outdrives for engines over 50HP |
| All Brands | Stern Drives | 5–150 HP | Universal fit | Compatible with Volvo Penta 270 outdrive |
| All Brands | Outboards/Outdrives | Up to 200 HP | Universal fit | Performance may vary based on boat configuration |
Technical Specs
- Product Type
- Hydrofoil Stabilizer, Dorsal Fin Style
- Installation
- Bolt-on (drilling required)
- Housing Material
- Reinforced Nylon PA66 Plastic
- Housing Color
- Black
- Dimensions
- H: 10-1/4 inches (260 mm), W: 8-1/4 inches (210 mm)
- Fitting Type
- Bolt-on with stainless steel hardware
- Compatible HP Range
- 5–150 HP (up to 200 HP)
- Other Technical Attributes
- UV-Resistant, Marine-grade construction
What’s in the Box
- 1 x Hydrofoil Stabilizer (Dorsal Fin Style)
- 4 x Sets of Stainless Steel Screws and Nuts
- 1 x Installation Instruction
- 1 x Drill for easy installation
Installation Notes
- Align the clip of the Hydrofoil Stabilizer with your outboard motor's lower beam or anti-cavitation plate.
- Gently tap the fin into place using a rubber mallet or a piece of wood to protect the surface.
- Adjust the position as needed and use the included drill bit to create mounting holes. Ensure the holes are straight.
- Install the provided screw washers, screws, and nuts to secure the hydrofoil.
Troubleshooting & FAQ
What are the main performance benefits of this hydrofoil?
This hydrofoil improves boat balance, eliminates bow rise and porpoising, enables faster planing, and provides a smoother ride. It also improves steering at both low and high speeds and can help reduce fuel consumption by improving efficiency.
Is drilling required for installation?
Yes, this is a bolt-on hydrofoil that requires drilling four holes into the outboard or stern drive's anti-cavitation plate. All necessary stainless steel hardware and a drill bit are included.
Will this stabilizer fit my specific engine model?
This is a universal stabilizer designed to fit most outboard and stern drive motors from 5 to 150 HP. It is not compatible with Volvo Penta 280/290 series or BMW outdrives on engines over 50 HP. Please consult the compatibility table and verify dimensions before purchasing.
How does this hydrofoil reduce porpoising and bouncing?
The hydrofoil adds hydrodynamic lift at the stern of the boat, which keeps the bow down and prevents the hull from bouncing on the water, especially during acceleration and at planing speeds. The dorsal fin design further enhances stability.
Can this be installed on a Volvo Penta outdrive?
It is compatible with the Volvo Penta 270 outdrive. However, it is explicitly not compatible with Volvo Penta 280 or 290 series outdrives.
What are the signs that a hydrofoil could help my boat?
If your boat experiences significant bow rise on takeoff, struggles to get on a plane, porpoises (bounces) at speed, or feels unstable at lower speeds, a hydrofoil can often correct these issues.
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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