Outboard Engine Cover – Fits Mercury, Yamaha, Honda 30-60 HP (Replaces 8M0221490)
This is a protective outboard engine cover designed for 30-60 HP outboard motors. It serves as a direct replacement for Mercury OEM part 8M0221490 and other aftermarket equivalents, providing robust protection against the elements.
This cover is directly compatible with Mercury 40-60 HP FourStroke outboards (serial numbers 1C043417 and up) and offers a universal fit for most 30-60 HP outboards from other major manufacturers like Yamaha, Honda, Tohatsu, and Suzuki.
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Installation: Simple slip-on design with a secure drawstring closure.
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Material: Constructed from heavy-duty, marine-grade polyester fabric with a protective PVC coating.
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Included: The package includes the engine cover and a convenient storage pouch.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand |
Part Number |
Notes |
| Mercury |
8M0221490 |
OEM |
| JLM |
24.4"x14.17"x19.3" |
Aftermarket |
Compatible Engine Models
Mercury
| Brand |
Model |
Rated HP |
Stroke |
OEM Part No. |
Notes |
| Mercury |
40/50/60 HP |
40-60 |
4-Stroke |
8M0221490 |
Serial number 1C043417 & up |
Yamaha/Honda/Other Major Brands
| Brand |
Model |
Rated HP |
Notes |
| Yamaha |
Various |
30-60 |
Aftermarket fit |
| Honda |
Various |
30-60 |
Aftermarket fit |
| Tohatsu |
Various |
30-60 |
Aftermarket fit |
| Suzuki |
Various |
30-60 |
Aftermarket fit |
Technical Specifications
| Specification |
Value |
| Product Type |
Outboard Engine Cover |
| Installation |
Slip-on with drawstring closure |
| Housing Material |
Marine-grade polyester fabric with PVC coating (Mercury OEM: Polysoft II fabric) |
| Housing Color |
Black (multiple colors may be available) |
| Dimensions |
24.4" × 14.17" × 19.3" (620 × 360 × 490 mm) |
| Weight |
6.7 oz (190 g) for aftermarket model |
| Fitting Type |
Universal fit for specified HP range |
| Other Technical Attributes |
Waterproof (95%), breathable (5%), UV-stable, 660lb breaking strength (OEM version) |
Package Contents
- 1 x Outboard Engine Cover (Aftermarket replacement for OEM 8M0221490)
- 1 x Storage pouch (aftermarket model)
Installation Guide
- Ensure the engine is cool and turned off before installation.
- Carefully slip the cover over the outboard engine cowling.
- Adjust the cover to ensure it is aligned and sits smoothly over the engine.
- Pull the drawstring at the base of the cover to tighten it securely.
- Tuck away any excess cord to prevent it from catching.
Troubleshooting & FAQ
Q: How do I confirm this cover fits my engine?
A: This cover is designed for most 30-60 HP outboards. For Mercury, it fits 40-60 HP FourStroke models with serial number 1C043417 and up. For other brands like Yamaha and Honda, it offers a universal fit for the 30-60 HP range. Always compare the listed dimensions (24.4" × 14.17" × 19.3") to your engine to ensure a good fit.
Q: What is the difference between this cover and the OEM Mercury version?
A: This is an aftermarket cover designed to meet or exceed OEM specifications. While the original Mercury cover (8M0221490) uses Polysoft II fabric, our cover is made from a durable marine-grade polyester with a PVC coating, offering excellent water resistance and durability. The dimensions and fit are made to be equivalent.
Q: Is this cover fully waterproof?
A: The material is rated as 95% waterproof to protect your engine from rain and spray, while also being 5% breathable. This helps prevent moisture and condensation from being trapped underneath the cover, which can lead to corrosion.
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.