Mercury Anode 888755Q04

Mercury – Magnesium Anode Kit | MR & Alpha One Series | Freshwater Protection | 888755Q04 Overview If you’ve ever eased out onto a glass–calm lake just after sunrise, you know that feeling of wanting everything on your boat to work exactly as it should. No surprises, no worries — just smooth water and a drive system you don’t have to think twice about. The Mercury Marine part number 888755Q04 Magnesium Anode Kit delivers that kind of confidence for owners of older MerCruiser MR and Alpha One drives. It’s dependable, straightforward protection that keeps your gear safe from the hidden corrosion happening beneath the surface, so you can enjoy the kind of days that make boating worth it. Key Features Protects MerCruiser MR and Alpha One sterndrives from galvanic corrosion in freshwater Cast from high–quality magnesium to meet or exceed Mil-Spec A-21412(SH) Fits 1984–1991 drives (serial numbers 6225577 through 0D469828) Complete 4-piece kit: trim tab anode, gimbal nut anodes, driveshaft plate anode Includes attaching hardware for quick, clean installation Designed to Mercury Marine OEM standards for fit, consistency, and reliability Engine & Boat Compatibility For MerCruiser MR and Alpha One sterndrives built from 1984–1991 For freshwater use only Suitable for bowriders, runabouts, ski boats, fishing boats, and classic recreational vessels Works for both single-drive and twin-drive freshwater setups Performance & Practical Benefits The right anodes can make a world of difference in how your drive ages over the years. The 888755Q04 magnesium kit offers strong, sacrificial protection tailored specifically to freshwater environments, where magnesium performs noticeably better than other materials. Once installed, you’ll notice that your drive stays cleaner, smoother, and more predictable season after season. The trim t ab and gimbal anodes help shield key structural points from corrosion, while the driveshaft plate anode keeps vital internal components better protected. Inspections are simple — magnesium wear is easy to spot — so staying ahead of maintenance becomes almost effortless. With the right anodes in place, the steering feels steadier, the trim system works more consistently, and the whole drive benefits from reduced long-term wear. It’s the kind of quiet, behind-the-scenes support that lets your engine run the way it’s meant to, without nagging concerns in the back of your mind. Why Buy OEM When it comes to corrosion protection, material quality and exact fit matter a lot. Genuine Mercury Marine parts use precisely engineered magnesium alloys matched to factory drive specifications. Aftermarket versions may look similar but often fall short in purity, casting consistency, or fitment accuracy — all of which affect protection. OEM anodes install easily, wear predictably, and offer the long-term reliability seasoned boaters trust. When you’re trying to protect a drive that’s already served you for years, the real thing simply makes the most sense. FAQ Q1: Which systems does the 888755Q04 kit fit? It fits MerCruiser MR and Alpha One sterndrives manufactured between 1984 and 1991. Q2: What sets this apart from aftermarket anodes? Higher-purity magnesium, tighter casting quality, and true OEM fit designed specifically for Mercury drives. Q3: How can I confirm this is the right kit? Check your drive’s serial number. If it falls between 6225577 and 0D469828, this is the correct Mercury Marine part. Q4: Can I use this in saltwater? No. Magnesium is only for freshwater. Saltwater requires aluminum or zinc anodes. Q5: Is installation simple? Yes. The kit includes all hardware and is easy for most boaters comfortable with routine maintenance tasks.

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