Mercury – Magnesium Anode Kit | Alpha One Gen II Series | Freshwater Protection | 888755Q03

Overview

If you spend your weekends running calm freshwater rivers, easing into quiet coves, or making long, unhurried loops around the lake, you know how much trust goes into every part of your boat. Some components you check constantly; others you want to install once and forget about until the season changes. The Mercury Marine part number 888755Q03 Magnesium Anode Kit gives your Alpha One Gen II sterndrive that kind of dependable, low-stress protection. It’s the peace of mind that comes from knowing your drive is shielded from the unseen corrosion that happens in freshwater — so you can focus on the day, not the hardware underneath you.

Key Features

• Protects MerCruiser Alpha One Gen II sterndrives from galvanic corrosion
• Cast from high-quality magnesium for maximum sacrificial protection in freshwater
• Fits 1991 and newer Alpha One Gen II drives (serial 0D469829 and up)
• Complete 6-piece kit includes trim tab anode, gimbal anode, driveshaft plate anode, lift ram anodes, and bearing carrier anode
• Includes attaching hardware for fast, clean installation
• Manufactured to Mercury Marine OEM specifications for precise fit and lasting performance

Engine & Boat Compatibility

• Designed for MerCruiser Alpha One Gen II sterndrives (1991-present within listed serial range)
• For freshwater applications only
• Ideal for runabouts, bowriders, sport boats, family cruisers, and fishing boats
• Works for both single and twin-drive configurations commonly found on recreational vessels

Performance & Practical Benefits

Once installed, the 888755Q03 magnesium anodes start doing the quiet, essential work of protecting your sterndrive. Magnesium is the most effective sacrificial metal for freshwater boating, providing strong, efficient corrosion prevention. The result is a drive that continues to feel tight, smooth, and steady as the hours add up — whether you’re trimming up to glide over a shallow shoreline or easing into the marina at dusk.

The kit is laid out to shield your drive’s most vulnerable points, including the lift rams and bearing carrier, which often take the brunt of galvanic activity. With everything wearing evenly and predictably, inspections become simple. You’ll be able to spot when it’s time to replace an anode long before any real harm is done, saving you from expensive repairs and unexpected downtime.

It’s the kind of quiet protection that keeps your boating season focused on good water, good weather, and good company — not corrosion.

Why Buy OEM

Choosing a genuine Mercury Marine part means every component was engineered for your drive’s exact shape, material, and operating environment. OEM anodes wear correctly, protect consistently, and replace cleanly. Aftermarket versions often vary in purity or casting quality, which can lead to uneven protection or premature wear. With OEM, you’re buying long-term reliability, real fitment accuracy, and confidence that your drive is protected the way Mercury intended.

FAQ

Q1: Which systems does the 888755Q03 Magnesium Anode Kit fit?

It fits MerCruiser Alpha One Gen II sterndrives built in 1991 and later within the listed serial range.

Q2: What makes this different from aftermarket anodes?

Higher-grade magnesium, precise fitment, and engineering matched to Mercury’s original drive design.

Q3: How do I know if it’s the right kit for my boat?

Check your drive model and serial number. If it’s an Alpha One Gen II within the specified range, this is the correct kit.

Q4: Can these anodes be used in saltwater?

No. Magnesium is strictly for freshwater. Saltwater requires aluminum or zinc anodes.

Q5: Is installation straightforward?

Yes. The kit includes all hardware and is simple to install for most boat owners comfortable with basic maintenance.