Mercury – Corrosion Guard Engine Protect | Rust Inhibitor Spray | 12 oz | 8M0172754

Overview

Every boater knows that corrosion is a quiet enemy. It works slowly, slipping into the places you rarely look — around powerheads, brackets, and hidden metal edges under the cowl. That’s why I keep Quicksilver Corrosion Guard Engine Protect 8M0172754 in my dock box and on my workbench. One quick spray before or after a run gives me the same calm, steady confidence I get when my engine fires on the first turn of the key. It’s simple protection that feels like putting a shield between your engine and the harsh, humid world it lives in.

Key Features

• Creates a water-resistant barrier on painted and unpainted metal surfaces
• Convenient 12-ounce spray can with attachable straw for tight spots and crevices
• Dries quickly to a clear, non-gumming film for long-term protection
• Penetrates existing rust to help loosen seized parts
• Safe for use on outboards, sterndrives, inboards, electrical connectors, and more
• Designed for both freshwater and saltwater environments
• Protective formula suitable for ATVs/UTVs, motorcycles, tools, trailers, and other metal equipment

Engine & Boat Compatibility

Ideal for preventing corrosion on:

• Mercury and Quicksilver outboards ranging from small portable engines to high-output models
• Sterndrive and inboard engine blocks, brackets, and exposed hardware
• Electrical components, linkages, fasteners, and under-cowl metal surfaces
• Boats of all types: pontoons, fishing rigs, center consoles, family runabouts, and jet boats
• Marine trailers, onboard equipment, and auxiliary gear exposed to moisture

Performance & Practical Benefits

What makes this product especially valuable is how quickly it becomes part of your routine. A short spray coats your engine with a smooth, clear shield that doesn’t feel oily or messy. It resists collecting debris — something every under-cowl area desperately needs.

In saltwater, corrosion starts working the moment moisture hits aluminum or steel. With Corrosion Guard, you’ll notice how your hardware stays cleaner, bolts stay tighter, and metal surfaces keep their original look longer. Even when you take a rough ride through spray or get caught in a downpour, the coating stays in place, giving you a steady layer of protection that doesn’t wash away or gum up linkages.

It’s also incredibly useful during winter storage. While your engine sits through long stretches of non-use, Corrosion Guard helps prevent rust creep, oxidation, and moisture damage so things stay just as you left them.

And if you’ve ever dealt with a stuck bolt or seized part, you’ll appreciate how this formula penetrates existing rust to help free things up. It’s the kind of versatility that makes the can worth keeping on hand year-round.

Why Buy OEM

When you choose a genuine Mercury Marine part, you’re getting more than just another maintenance spray. You’re choosing:

• A formula engineered specifically for marine engines and harsh water environments
• Reliable, long-lasting protection tested to meet Mercury’s OEM standards
• Better material compatibility than generic products
• A cost-effective way to extend the life of your engine and avoid corrosion-related repairs
• Confidence that the product is made to perform right the first time

It’s real-world protection that seasoned boaters depend on.

FAQ Section

Q1: Which engines does this product protect?

Any Mercury outboard, sterndrive, or inboard engine needing corrosion protection on metal surfaces.

Q2: What makes this different from aftermarket rust sprays?

It’s designed specifically for marine metals, heat, humidity, and electrical component safety. No staining, no heavy residue, no long-term gumming.

Q3: How do I know if it’s right for my setup?

If your engine sees moisture — salt, fresh, rain, wash-downs, or humidity — you’ll benefit from using it.

Q4: Can it be used in both saltwater and freshwater?

Absolutely. It’s engineered for both, including high-salinity coastal environments.

Q5: Is it easy to apply?

Yes. Just shake, spray, and let it dry. The straw helps you reach tight areas under the cowl.