Whale Tail Hydrofoil Stabilizer for Outboard Motors 8–40 HP — Replaces FO2002 and FO002
Whale Tail Hydrofoil Stabilizer for Outboard Motors 8–40 HP — Replaces FO2002 and FO002 is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.
If the return is due to our error or a defective item, we’ll make it right.
Please contact us before returning any item.
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.
Tracking information will be provided once your order ships.
Whale Tail Hydrofoil Stabilizer for Outboard Motors 8–40 HP — Repla...
Whale Tail Hydrofoil Stabilizer for Outboard Motors 8–40 HP — Replaces FO2002 and FO002 is backordered and will ship as soon as it is back in stock.
Product Details
The SeaSierra Whale Tail Hydrofoil Stabilizer is a marine-grade hydrofoil designed to improve planing performance, handling, and stability. It fits most outboard motors and stern drives from 8 to 40 HP and is suitable for many 2-Stroke and 4-Stroke applications. It may also fit many larger outboards and stern drives, except Mercury 4-Stroke 40 HP, 50 HP, and 60 HP models.
This aftermarket hydrofoil is listed as a replacement for SeaSierra reference numbers FO2002 and FO002. Always compare your anti-cavitation plate and engine application with the product dimensions before installation.
- Mounts directly to the anti-cavitation plate using the included hardware.
- Constructed from durable marine-grade Nylon PA66 plastic.
- Includes stainless steel mounting hardware and a 6.5 mm drill bit.
- Drilling is required for installation.
Reference Number Matrix
Use the following aftermarket reference numbers when comparing replacement applications.
| Brand | Reference Number |
|---|---|
| SeaSierra | FO2002 |
| SeaSierra | FO002 |
Engine & Model Compatibility
Compatibility depends on the shape and available mounting area of the anti-cavitation plate. Confirm your engine application and measure the mounting area before ordering.
| Application | Rated HP | Stroke | Reference Number | Notes |
|---|---|---|---|---|
| Most small outboards and compatible stern drives | 8–40 HP | 2-Stroke and 4-Stroke | FO2002 | Verify anti-cavitation plate dimensions and mounting clearance. |
| Many compatible outboards and stern drives above 40 HP | Above 40 HP | 2-Stroke and 4-Stroke | FO2002 | Excludes Mercury 4-Stroke 40 HP, 50 HP, and 60 HP models. |
Technical Specifications
- Product Type
- Hydrofoil stabilizer
- Installation Location
- Outboard or stern-drive anti-cavitation plate
- Mounting Method
- Direct mount with drilling and included hardware
- Material
- Marine-grade Nylon PA66 plastic
- Color
- Blue or silver finish, depending on selected option
- Dimensions
- Height: 13.39 inches (340 mm) × Width: 13.7 inches (348 mm)
- Weight
- 2.94 lb (1.33 kg)
- Drill Bit Size
- 6.5 mm
- Design
- Crescent-shaped hydrofoil surface designed to channel water efficiently
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
- Disconnect the engine battery or power source before beginning installation.
- Center the hydrofoil on the anti-cavitation plate of the outboard or stern drive.
- Use a pencil or marker to mark the four mounting-hole positions.
- Carefully drill the marked holes with the included 6.5 mm drill bit.
- Position the hydrofoil and secure it with the included stainless steel screws and nuts.
- Tighten the hardware evenly and firmly. Do not overtighten, as this may damage the plate or hardware.
- Reconnect the battery or power source and perform a controlled water test.
Troubleshooting & FAQ
How do I know if this hydrofoil will fit my motor?
This hydrofoil is intended for most compatible outboard and stern-drive applications from 8 to 40 HP and many applications above 40 HP. Mercury 4-Stroke 40 HP, 50 HP, and 60 HP models are excluded. Before ordering, measure the anti-cavitation plate and compare the available mounting area with the hydrofoil dimensions of 13.39 × 13.7 inches.
What are the benefits of installing a hydrofoil?
A properly fitted hydrofoil can help a boat get on plane faster, reduce porpoising, improve handling and stability, and provide additional hydrodynamic lift at the stern during operation.
Is drilling required for installation?
Yes. Installation requires four holes to be drilled into the anti-cavitation plate. A 6.5 mm drill bit and stainless steel mounting hardware are included.
What is the difference between the blue and silver color options?
The color is cosmetic. Both options use marine-grade Nylon PA66 plastic and are intended for the same type of application.
Is this an OEM part?
No. This is an aftermarket replacement hydrofoil. It is listed as a replacement for reference numbers FO2002 and FO002; it is not represented as an original equipment manufacturer component.
How long does shipping take?
Typical transit is 5–15 days. Standard shipping is free, and expedited options may be shown at checkout where available.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use. Returns are accepted within the applicable standard return window when the item is unused and in its original condition. Contact support for current policy details and return instructions.
Safety & Important Information
- Confirm the engine application, anti-cavitation plate dimensions, and mounting clearance before ordering.
- Do not install the hydrofoil on excluded Mercury 4-Stroke 40 HP, 50 HP, or 60 HP models.
- Inspect all hardware after installation and before the first use.
- Professional installation is recommended if you are not experienced with drilling and marine hardware installation.
- This is an aftermarket replacement, not an OEM component.
About SeaSierra
- Pro-Grade Standards — We supply marine parts designed for demanding real-world conditions.
- Fast Global Fulfillment — Free standard delivery is available to most regions, with typical transit of 5–15 days.
- Manufacturer-Direct Value — Fair pricing with attention to materials and quality control.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
