How to Choose the Right Outboard Motor Cover for Better Engine Protection

A standard storage cover should not automatically be assumed suitable for trailering. Always check whether the manufacturer specifically approves the cover for transportation.

3. Custom-Fitted Covers

Custom-fitted covers are made for particular engine models or dimensions. They generally provide a closer fit around the motor's shape and may include specific openings, fastening points, and reinforced sections.

These covers can be a practical option for owners who want a secure fit without excessive loose material.

4. Universal Covers

Universal covers are designed to accommodate a range of engine sizes. They can be convenient and may cost less than model-specific options.

However, their fit can vary considerably. Check the manufacturer's sizing information carefully to ensure the cover does not leave important areas exposed or become too loose.

How to Select the Right Cover Material

Material quality has a major influence on durability and weather protection. A suitable cover should withstand the conditions in which the boat is stored.

Marine-Grade Polyester

Marine-grade polyester is commonly used for boat and engine covers because of its strength and relatively low weight.

Depending on its construction and treatment, it can provide good resistance to sunlight, moisture, and general outdoor exposure.

Solution-Dyed Fabrics

Solution-dyed fabrics are coloured during the manufacturing process rather than having colour applied only to the finished surface. This construction can improve colour retention and resistance to fading.

For boats stored in areas with strong sunlight, this may be a useful feature to consider.

Waterproof and Water-Resistant Materials

Waterproof materials are designed to prevent water from passing through under specified conditions. Water-resistant fabrics offer some protection but may allow moisture through during prolonged or heavy exposure.

The best option depends on the storage environment and the cover's ventilation design. A breathable material may be more appropriate than a completely sealed cover in some conditions.

Measuring Your Outboard Motor Before Buying

One of the most common purchasing mistakes is choosing a cover based on approximate engine size rather than checking the actual dimensions.

Before purchasing, consider the following:

• Engine height: Measure from the relevant mounting reference point to the top of the engine.
• Engine width: Check the widest external section of the cowling.
• Engine model: Confirm the manufacturer's model and specifications.
• Engine configuration: Consider whether the motor has additional accessories or attachments that affect its overall shape.
• Cover design: Review the product's sizing chart and fitting instructions.

If a manufacturer offers model-specific covers, check the compatibility information before ordering.

A cover that is too tight may place unnecessary stress on its seams and fastening points. One that is too loose may move during windy conditions or allow dirt and moisture underneath.