Mercury – Quicksilver 822777T1 Aluminum Trim Tab Anode | Mercury & Mariner Outboards | MerCruiser Sterndrives | 822777T1

Overview

Your trim tab does double duty — it fights corrosion and helps your boat steer straight. The Mercury 822777T1 Aluminum Trim Tab Anode is designed for Mercury and Mariner outboards (35HP and above) and MerCruiser sterndrives, providing corrosion protection and steering balance for boats running high-rake propellers.

Cast from high-quality aluminum, this OEM trim tab shields your gearcase from galvanic corrosion in both salt and freshwater, while also adding a bit of hydrodynamic lift to make steering smoother. It installs quickly using the included hardware and can be inspected or swapped out as part of regular maintenance.

Key Features

• Purpose: Protects the lower unit from corrosion and provides steering stability.
• Fitment: For Mercury and Mariner outboards (35HP and up), 1995-and-newer Force 90HP and 120HP outboards, and all MerCruiser sterndrives.
• Construction: Made from marine-grade aluminum alloy for long-lasting protection in all waters.
• Design: Trim tab shape provides extra clearance for high-rake propellers and aids steering control.
• Ease of Use: Installs easily with included hardware — inspect and replace annually.

Engine & Boat Compatibility

• Mercury and Mariner outboards (35HP+)
• Force 90HP & 120HP outboards (1995 and newer)
• All MerCruiser sterndrives
• Ideal for freshwater and saltwater setups, especially with high-performance props

Performance & Real-World Benefits

The 822777T1 trim tab anode protects your outboard or sterndrive’s gearcase housing by diverting corrosion away from expensive aluminum components. At the same time, it fine-tunes steering by offsetting prop torque — giving you smoother, easier control at all speeds.

This anode’s aluminum construction offers balanced protection in both salt and freshwater, and it’s simple to replace with basic tools. A quick inspection once or twice a season keeps your steering sharp and your lower unit protected.

Why Choose OEM

Mercury’s OEM anodes are precision-cast from the right aluminum alloy for reliable, even wear. Aftermarket copies often use inconsistent materials that corrode too quickly or unevenly, leaving your drive vulnerable.

A genuine Quicksilver trim tab anode fits perfectly, protects better, and lasts longer — engineered to the same standards as your engine itself.

FAQ

Q1: What engines fit the 822777T1 trim tab anode?
A: It fits Mercury & Mariner outboards (35HP and above), Force 90HP & 120HP (1995-newer), and all MerCruiser sterndrives.

Q2: Can it be used in saltwater?
A: Yes. It’s made from aluminum that performs equally well in salt or freshwater.

Q3: How often should I replace it?
A: Inspect at least once a season and replace when it’s about half worn or visibly pitted.

Q4: Does it help with steering?
A: Yes. The tab shape helps offset prop torque, improving steering balance and control.

Q5: Why OEM instead of aftermarket?
A: OEM anodes provide the correct metal composition, fit, and hydrodynamic design for maximum protection and steering performance.