Skeg Guard – Fits MerCruiser Alpha One Gen II (Replaces MerCruiser 27031, 1901)
Skeg Guard – Fits MerCruiser Alpha One Gen II (Replaces MerCruiser 27031, 1901) is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
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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.
Tracking information will be provided once your order ships.
Skeg Guard – Fits MerCruiser Alpha One Gen II (Replaces MerCruiser ...
Skeg Guard – Fits MerCruiser Alpha One Gen II (Replaces MerCruiser 27031, 1901) is backordered and will ship as soon as it is back in stock.
Product Details
This Stainless Steel Skeg Guard protects your sterndrive from damage or can be used to repair an already broken skeg. It is specifically designed to fit MerCruiser Alpha One Generation 2 stern drives from 1991 to the present.
It serves as a direct replacement for MerCruiser parts 27031 and 1901, as well as aftermarket references Panther 35-SS610, Yoursme 27031, and SeaSierra 35-SS610.
- Installs in approximately 10 minutes with included hardware (drilling required).
- Constructed from mirror-polished 316 marine-grade stainless steel for superior corrosion resistance.
- Features a bottom drain hole to prevent water buildup, corrosion, and freezing.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| MerCruiser | 27031 |
| MerCruiser | 1901 |
| Panther | 35-SS610 |
| Yoursme | 27031 |
| SeaSierra | 35-SS610 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This component is compatible with MerCruiser sterndrives as detailed in the following chart.
| Brand | Model | Rated HP | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|
| MerCruiser | Alpha One Gen II | Up to 300 HP | 1991–Present | 27031, 1901 | Can be used for new skeg protection or repair of damaged skeg |
Technical Specs
- Product Type
- Skeg Guard/Protector
- Installation
- Screw-in (drilling required)
- Material
- 316 Marine Grade Stainless Steel
- Finish
- Mirror-polished
- Thickness
- 1.5mm (0.059 in) / 3mm (0.118 in) at lower wear tab
- Design Features
- Drain hole at bottom to prevent corrosion and freezing
- Installation Time
- Approximately 10 minutes
- Required Remaining Skeg
- Minimum 2-3 inches
- Package Contents
- Mounting hardware, instructions, hex/Allen wrench, Loctite 262
- Warranty
- 12 months (Yoursme brand)
What’s in the Box
- 1 x Skeg Cover Guard
- 1 x Drill bit
- 2 x Nuts
- 4 x Screws
- 1 x Allen wrench
- 1 x Loctite 262 (Panther brand only)
Installation Notes
- Put on gloves to ensure safety.
- Ensure the keel guard model matches the skeg plate on your engine model.
- Flatten any spikes or jagged edges on the keel guard to allow an easy fit over the tail fin.
- Tap gently with a rubber mallet until the fit is perfect.
- Using the pre-drilled mounting holes in the guard as a template, drill holes into your skeg with a 1/4-inch drill bit and install the hardware using the provided hex wrench.
Troubleshooting & FAQ
Will this skeg guard fit my specific engine?
This skeg guard is designed for MerCruiser Alpha One Generation II stern drives manufactured from 1991 to the present. Please verify your drive model and year before purchasing.
How much of my original skeg needs to be left for this to install?
You need a minimum of 2 to 3 inches of your original skeg remaining for a secure and proper installation.
Do I have to drill holes in my skeg?
Yes, installation requires drilling. The guard has pre-drilled mounting holes to use as a template. All necessary mounting hardware, including a drill bit, is included in the kit.
What is the purpose of the drain hole at the bottom?
The drain hole is a key design feature that allows water to escape, preventing it from getting trapped between the guard and the skeg. This helps to stop corrosion and protects against damage from freezing water in colder climates.
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 part 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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