Skeg Protector Guard – Fits Mercury Mariner 75-300 HP 2-Stroke & 4-Stroke (Replaces OEM 27211)
This skeg protector guard is designed for Mercury/Mariner 75–300 HP 2-Stroke & 4-Stroke engines from 1999 to the present. It fits a wide range of models, including Command Thrust, SeaPro, 4-Stroke, Verado, Optimax, and ProXS (excluding Torquemaster gearcases).
This component is a direct replacement for Mercury/Mariner OEM Part Number: 27211.
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Installation Method: Simple bolt-on process requires drilling two 1/4" holes.
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Premium Material: Constructed from 18-gauge marine-grade 316 stainless steel for superior corrosion resistance and durability.
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Enhanced Protection: Features a 3mm reinforced wear tab at the bottom for added strength against impacts.
Compatible Engine Models
Confirm your engine model and 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 |
Command Thrust |
75-115 |
4-Stroke |
2014-Present |
27211 |
|
| Mercury/Mariner |
SeaPro |
75-115 |
4-Stroke |
2014-Present |
27211 |
|
| Mercury/Mariner |
Verado |
135-225 |
4-Stroke |
2005-2018 |
27211 |
|
| Mercury/Mariner |
ProXS |
150 |
4-Stroke |
2019-Present |
27211 |
|
| Mercury/Mariner |
SeaPro |
150 |
4-Stroke |
2019-Present |
27211 |
|
| Mercury/Mariner |
Optimax |
200-250 |
2-Stroke |
1999-2018 |
27211 |
No Torquemaster |
| Mercury/Mariner |
ProXS |
200-250 |
2-Stroke |
1999-2018 |
27211 |
No Torquemaster |
| Mercury/Mariner |
PRO Verado |
200-300 |
4-Stroke |
2015-2018 |
27211 |
4.8" Gearcase |
| Mercury/Mariner |
2-Stroke |
225 |
2-Stroke |
1996-2004 |
27211 |
|
Technical Specifications
| Specification |
Value |
| Product Type |
Skeg Protector Guard |
| Installation |
Bolt-on |
| Connection |
Self-locking bolts |
| Housing Material |
18-Gauge Marine-Grade 316 Stainless Steel |
| Housing Color |
Mirror Polished Stainless Steel |
| Weight |
0.71 kg (1.57 lbs) |
| Fitting Type |
Skeg-conforming sleeve |
| Thread Size |
1/4" |
| Operating Temperature |
Marine environment temperature range |
| Warranty |
3-year manufacturer warranty |
| Other Technical Attributes |
3mm reinforced wear tab, drain hole to prevent corrosion/freezing |
Package Contents
- 1 x Skeg Protector Guard (27211)
- 1 x Set of Stainless Steel Self-Locking Hardware
- 1 x 1/4" Drill Bit
- 1 x Hex Key Tool
Installation Guide
Installation is straightforward and typically takes less than 10 minutes. This guard is designed to fit even if your skeg has as little as 2-3 inches remaining.
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Safety First: Ensure the engine is off and the propeller is secured from moving.
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Position the Guard: Slide the skeg guard onto your existing skeg, ensuring it fits snugly.
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Mark for Drilling: Use the pre-drilled holes in the guard as a template to mark the drilling points on your skeg.
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Drill the Holes: Using the included 1/4" drill bit, carefully drill through the marked spots on your skeg.
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Apply Sealant (Recommended): For added protection against water intrusion, apply a marine-grade sealant inside the guard and around the bolt holes.
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Secure the Guard: Attach the guard using the provided self-locking bolts and hex key. Tighten until secure, but do not overtighten. The bolts are designed to shear off if you hit an object, protecting your gearcase from more severe damage.
Troubleshooting & FAQ
Q: How do I confirm this fits my engine?
A: This guard fits most Mercury/Mariner 75-300 HP outboards from 1999-Present. Please check the "Compatible Engine Models" table and confirm your model and year. It is a direct replacement for OEM part number 27211. It's not compatible with Torquemaster gearcases.
Q: Can I install this if my skeg is already damaged?
A: Yes, this guard is designed to be installed on skegs with as little as 2-3 inches of skeg remaining. It serves as both a protector for new skegs and a repair for damaged ones.
Q: Is drilling required for installation?
A: Yes, installation requires drilling two 1/4" holes through your skeg. The kit includes the necessary drill bit and hardware for a secure, bolt-on installation.
Q: What is the benefit of 18-gauge 316 stainless steel?
A: Marine-grade 316 stainless steel offers exceptional resistance to rust and corrosion, especially in saltwater environments. The 18-gauge thickness and a 3mm reinforced wear tab provide robust protection against underwater impacts from rocks, debris, and ramps.
Q: OEM vs. Aftermarket?
A: 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.
Q: How fast do you ship and how much does it cost?
A: 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.
Q: What is your warranty and return policy?
A: This product includes a 3-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?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.