Hydrofoil Stabilizer with Mounting Hardware – Fits Many 5–150 HP Outboards
Hydrofoil Stabilizer with Mounting Hardware – Fits Many 5–150 HP Outboards is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Hydrofoil Stabilizer with Mounting Hardware – Fits Many 5–150 HP Ou...
Hydrofoil Stabilizer with Mounting Hardware – Fits Many 5–150 HP Outboards is backordered and will ship as soon as it is back in stock.
Product Details
This marine Hydrofoil Stabilizer is designed to help improve planing response, low-speed stability, and handling on many outboard applications from 5 to 150 HP. It mounts to the engine’s anti-ventilation plate and may be suitable for selected Yamaha, Mercury, Honda, Suzuki, Tohatsu, Johnson, and Evinrude outboards. Confirm the dimensions and mounting area of your specific engine before installation.
The stabilizer is an aftermarket replacement associated with SeaSierra FO2001 and similar aftermarket references. These references are provided for comparison only; verify the original part dimensions and mounting arrangement before ordering.
- Bolt-on installation onto the anti-ventilation plate.
- Marine-grade nylon PA66 construction with UV-resistant properties.
- Includes stainless steel mounting hardware and a drill bit for installation.
- Designed to support improved planing performance and stability when correctly fitted.
Part Number References
Use the following aftermarket references as search and comparison terms. They do not replace dimensional fitment verification.
| Brand or Listing Reference | Part Number |
|---|---|
| SeaSierra | FO2001 |
| UanofCn | FO2001 |
| QuickMarine | HS001 |
| NorthBoat | HS001 |
Engine Compatibility
This stabilizer is intended for many outboard and selected stern-drive applications within the stated size range, but universal fit should not be assumed. Model-specific year, serial-number, shaft-length, and mounting conditions were not verified for this listing. Compare the dimensions and confirm that your anti-ventilation plate can accept the four-hole bolt-through installation.
| Brand | Application Guidance | Rated Range | Stroke | Fitment Note |
|---|---|---|---|---|
| Yamaha | Many outboard applications | 5–150 HP | 2-Stroke or 4-Stroke | Verify plate dimensions |
| Mercury | Many outboard applications | 5–150 HP | 2-Stroke or 4-Stroke | Verify plate dimensions |
| Honda | Many outboard applications | 5–150 HP | Primarily 4-Stroke | Verify plate dimensions |
| Suzuki | Many outboard applications | 5–150 HP | Application-dependent | Verify plate dimensions |
| Tohatsu | Many outboard applications | 5–150 HP | 2-Stroke or 4-Stroke | Verify plate dimensions |
| Johnson | Selected outboard applications | 5–150 HP | Application-dependent | Verify plate dimensions |
| Evinrude | Selected outboard applications | 5–150 HP | Application-dependent | Verify plate dimensions |
| MerCruiser or OMC | Selected stern-drive applications | Not specified | Not specified | Confirm mounting clearance before purchase |
Technical Specifications
- Product Type
- Hydrofoil stabilizer, dorsal-fin style
- Product Configuration
- Single hydrofoil stabilizer with installation hardware
- Installation
- Bolt-on installation with included hardware
- Mounting Location
- Engine anti-ventilation plate
- Material
- Marine-grade nylon PA66 plastic
- Color
- Grey; other color versions may be offered separately
- Dimensions
- Height: 10.25 inches (260.4 mm); width: 8.25 inches (209.6 mm)
- Weight
- 2.41 pounds (1.09 kg)
- Fitting Type
- Four-hole, bolt-through mounting
- Rated Application Range
- 5–150 HP, subject to dimensional and application verification
What’s in the Box
- 1 × Hydrofoil stabilizer
- 4 × sets of stainless steel screws and nuts
- 1 × 6.5 mm drill bit
- 1 × installation instruction
Installation Notes
- Temporarily position the hydrofoil on the engine’s anti-ventilation plate. Center it and confirm that it does not interfere with the propeller or other moving components.
- Use the hydrofoil as a template to mark the four mounting-hole locations.
- Remove the hydrofoil and carefully drill the marked holes with the included 6.5 mm drill bit, using appropriate eye protection and safe drilling practices.
- Position the hydrofoil again, align the holes, and insert the stainless steel bolts.
- Install and tighten the nuts evenly. Do not overtighten, since excessive force may damage the plate or stabilizer.
- Check all hardware and clearances before launching or operating the boat, and recheck fasteners after the first use.
Troubleshooting & FAQ
How do I know if this hydrofoil will fit my motor?
Check that your engine’s anti-ventilation plate can accommodate the four-hole bolt-through mounting pattern and the stabilizer dimensions of 10.25 inches high by 8.25 inches wide. Also confirm propeller, trim, steering, and transom clearance. Horsepower range alone does not guarantee fitment.
What tools are required for installation?
A drill and suitable hand tools for the included fasteners are required. A 6.5 mm drill bit is included. Use appropriate safety equipment and follow safe drilling procedures.
What performance improvement can I expect?
A properly fitted hydrofoil may help the boat reach plane more readily, maintain planing at lower speeds, and improve stability. Results vary with boat design, engine setup, loading, propeller selection, and water conditions. It is not a guarantee of improved fuel economy or elimination of ventilation or cavitation.
When should the hydrofoil be replaced?
Inspect it regularly for stress cracks, chips, fractures, deformation, or damage around the mounting holes. Replace it if any damage or looseness is found, and inspect the mounting plate and hardware at the same time.
Is this an OEM component?
No. This is an aftermarket hydrofoil stabilizer. Brand names and part numbers shown on this page are comparison references only and do not indicate that the product is manufactured by or endorsed by an engine manufacturer.
How should I confirm compatibility before ordering?
Compare the product dimensions and mounting arrangement with your original stabilizer or anti-ventilation plate. Because exact model, year, serial-number, and stroke-specific fitment was not verified for every application, contact the seller with your engine details if you need application-specific confirmation.
Safety & Important Information
- Verify dimensions, mounting-hole location, and propeller clearance before purchase and installation.
- This is an aftermarket replacement, not an OEM component.
- Do not operate the boat if the hydrofoil, anti-ventilation plate, or mounting hardware is cracked, loose, or damaged.
- Professional installation is recommended when drilling the anti-ventilation plate or when application fitment is uncertain.
About Sea Sierra
- Marine-Focused Products — Practical replacement and accessory solutions for boat owners and marine-service applications.
- Application-Conscious Support — Compare dimensions and installation requirements before ordering to help ensure the correct fit.
- Value-Oriented Parts — Aftermarket products selected for everyday marine maintenance and repair needs.
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