Outboard Motor Cover – Fits Mercury, Yamaha, Honda 5–30 HP
This outboard motor cover is designed to fit a wide range of Mercury, Yamaha, and Honda 5–30 HP outboard engines, including multiple 2-Stroke and 4-Stroke models from recent years. It offers robust protection against the elements, preserving your engine's finish and integrity.
As an aftermarket component, this cover serves as a direct replacement for SeaSierra outboard engine covers, with universal sizing based on the HP rating to ensure broad compatibility.
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Simple Installation: Designed for a quick, slip-on fit secured with a drawstring closure.
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Durable Material: Constructed from waterproof Oxford Fabric with a PVC coating for excellent weather resistance.
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Comprehensive Protection: Shields your engine from water, UV rays, and scratches.
Compatible Engine Models
Confirm your engine model/year in the table below.
| Brand |
Model |
Rated HP |
Stroke |
Years |
Notes |
| Mercury |
Various |
20-30 HP |
2-Stroke & 4-Stroke |
Recent models |
Universal fit |
| Yamaha |
Various |
20-30 HP |
2-Stroke & 4-Stroke |
Recent models |
Universal fit |
| Honda |
Various |
20-30 HP |
2-Stroke & 4-Stroke |
Recent models |
Universal fit |
Technical Specifications
| Specification |
Value |
| Product Type |
Outboard Motor Cover |
| Installation |
Slip-on with drawstring closure |
| Housing Material |
Oxford Fabric with PVC Coating |
| Housing Color |
Black |
| Dimensions |
65" × 54" (165 × 137 cm) |
| Weight |
7.1 ounces (201 grams) |
| Fitting Type |
Universal fit with drawstring bottom |
| Other Technical Attributes |
Waterproof, UV protection, weather resistance, scratch protection |
Package Contents
1 x Outboard Motor Cover
Installation Guide
- Ensure the outboard engine cowl is clean, dry, and cool to the touch.
- Carefully drape the cover over the engine, aligning it from front to back.
- Pull the cover down evenly over the sides of the cowl.
- Secure the cover by pulling the drawstring closure at the bottom until it is snug around the engine shaft.
- Tuck any excess drawstring cord away to prevent it from snagging.
Troubleshooting & FAQ
Q: How do I confirm this cover fits my engine?
A: This cover offers a universal fit for most 20-30 HP outboard engines. To ensure the best fit, we recommend measuring your engine cowl and comparing it to the cover’s dimensions:65" × 54" (165 × 137 cm) . The drawstring bottom allows for some adjustment.
Q: Can I use this cover while trailering my boat?
A: While the cover is made of durable, weather-resistant fabric, it is primarily designed for storage protection. For high-speed trailering, you must ensure the drawstring is pulled very tight and securely knotted to prevent it from loosening or flying off.
Q: How should I clean and store the motor cover?
A: Clean the cover with a soft cloth, mild soap, and clean water. Avoid using harsh chemical cleaners. Always allow the cover to dry completely before folding and storing it to prevent mildew growth.
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 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?
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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.