Skeg Protector Guard – Fits Mercury/Mariner 40-60 HP 2 & 4 Stroke (Replaces 27341)
This skeg protector guard is designed for Mercury/Mariner 40, 50, and 60 HP 2 & 4-Stroke outboards from 1991 to present. It specifically fits models equipped with the smaller 3.44" gearcase (2.07 ratio).
It serves as a direct replacement for SupremeMarine 1903, QuickMarine 27341, and SkegGuard 462-254-27341.
- Constructed from tough, marine-grade 316 stainless steel for superior corrosion resistance.
- Features a simple bolt-on installation with all necessary hardware included.
- Reinforced with a 3mm thick wear tab and includes a drain hole to prevent water buildup.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across brands.
| Brand |
Part Number |
| Mercury/Mariner (OEM) |
27341 |
| SupremeMarine |
1903 |
| QuickMarine |
27341 |
| SkegGuard |
462-254-27341 |
Compatible Engine Models
Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.
| Brand |
Model |
Rated HP |
Stroke |
Years |
OEM Part No. |
Notes |
| Mercury/Mariner |
Outboard |
40 |
2-Stroke |
1991-Present |
27341 |
Smaller 3.44" Gearcase (2.07) |
| Mercury/Mariner |
Outboard |
50 |
2-Stroke |
1991-Present |
27341 |
Smaller 3.44" Gearcase (2.07) |
| Mercury/Mariner |
Outboard |
60 |
2-Stroke |
1991-Present |
27341 |
Smaller 3.44" Gearcase (2.07) |
| Mercury/Mariner |
Outboard |
40 |
4-Stroke |
1991-Present |
27341 |
Smaller 3.44" Gearcase (2.07) |
| Mercury/Mariner |
Outboard |
50 |
4-Stroke |
1991-Present |
27341 |
Smaller 3.44" Gearcase (2.07) |
| Mercury/Mariner |
Outboard |
60 |
4-Stroke |
1991-Present |
27341 |
Smaller 3.44" Gearcase (2.07) |
Technical Specifications
| Specification |
Value |
| Product Type |
Skeg Protector Guard |
| Installation |
Bolt-On |
| Material |
Marine Grade 316 Stainless Steel, 18-Gauge |
| Finish |
Mirror Polished |
| Dimensions |
Lower wear tab: 3mm thick
|
| Weight |
440g (0.97 lb) |
| Fitting Type |
Vehicle Specific Fit |
| Application |
Outboard Lower Unit |
| Color |
Silver |
| Drain Hole |
Yes, prevents corrosion/freezing |
| Wear Protection |
Extra reinforced wear tab across bottom |
| Other Technical Attributes |
Self-locking hardware included with thread locker sealant |
Package Contents
- 1 x Skeg Guard
- 1 x Self-Locking Hardware Kit (4 Male & Female Stainless Locking Screws)
- 2 x Hex Key Tools
- 1 x 1/4 Inch Drill Bit
Installation Guide
-
Ensure proper fit before installing. There must be at least two to three inches of the upper skeg remaining to secure the new guard. If the skeg is bent, it may need to be reshaped for a correct fit.
- File down any spurs or jagged edges on the existing skeg to ensure the guard can slide on smoothly.
- Position the guard onto the skeg. Use a leather, rubber, or wooden mallet to gently tap it until it is fully seated.
- Using the two pre-drilled holes in the guard as a pilot, drill through the skeg with the supplied 1/4" drill bit. Install the stainless steel hardware using the hex keys; the hardware includes a thread locker sealant to prevent loosening.
Troubleshooting & FAQ
How do I confirm this Skeg Guard fits my Mercury/Mariner engine?
Please refer to our "Compatible Engine Models" table. This guard is designed for Mercury/Mariner 40-60 HP 2-Stroke & 4-Stroke outboards (1991-Present) that have the smaller 3.44" gearcase. Verifying your engine's year and gearcase size is crucial.
What if my original skeg is already damaged?
This guard can repair and protect a broken skeg, but you must have at least 2-3 inches of the upper skeg remaining to properly mount it. For best results, file down any sharp edges and straighten any bends before attempting to install the guard.
What makes this skeg guard a durable solution?
It is constructed from heavy-duty 18-gauge, 316 marine-grade stainless steel, which offers excellent resistance to corrosion and impact. It also features a reinforced, 3mm-thick wear tab on the bottom for added protection against grounding and debris.
Is drilling required for installation?
Yes, installation requires drilling two holes through your existing skeg, using the guard itself as a guide. We provide a complete installation kit, which includes a 1/4" drill bit, self-locking mounting bolts with thread locker, and hex keys.
OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
-
Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
-
Fast Global Shipping: Free delivery worldwide in 5–15 days.
-
Direct from Manufacturer: Competitive pricing without compromising quality.