Mercury – Zinc Trim Tab | Corrosion Protection & Steering Balance | Marine Zinc Construction | 853762

Overview

There’s a quiet kind of satisfaction in a boat that runs straight and true — no pull, no fight, just smooth control through the throttle. The Mercury Quicksilver 853762 Zinc Trim Tab makes that happen. It’s a small part with a big job: balancing your steering and protecting your outboard from corrosion in some of the harshest environments on the water. Built with the same precision and care you expect from Mercury Marine, this trim tab is your silent partner in keeping your boat steady, efficient, and protected.

Whether you’re carving through coastal chop or idling along a riverbank, you’ll feel the difference when everything’s trimmed and tuned just right — and this is the part that makes that happen without a second thought.

Key Features

• Genuine Mercury Marine zinc trim tab designed for corrosion protection and steering balance

• Fits Mercury 25–50HP (2006 & newer) 2-stroke Jet, International, and Lightning outboards

• Also fits 25–30HP (2022 & newer) 4-stroke EFI 3-cylinder outboards

• Made from marine-grade zinc to resist galvanic corrosion in saltwater environments

• Engineered to maintain optimal steering stability and fuel efficiency

• Meets Mercury Marine OEM standards for fit, balance, and longevity

Engine & Boat Compatibility

• Compatible with Mercury 25–50 horsepower 2-stroke outboards (2006 & newer)

• Fits Jet, International, and Lightning engine models

• Also fits 25–30 horsepower 4-stroke EFI 3-cylinder outboards (2022 & newer)

• Commonly used on small fishing boats, runabouts, pontoons, and lightweight cruisers

• Suitable for both saltwater and freshwater boating conditions

Performance & Practical Benefits

The Quicksilver 853762 Zinc Trim Tab plays two crucial roles — fine-tuning your steering control and shielding your outboard from corrosion. You’ll notice the first benefit right away: smoother handling and reduced wheel pull at high speeds. It helps balance propeller torque so your boat tracks straight and feels lighter in your hands. That means less fatigue at the helm and more control when it counts — whether you’re running with the current or pushing against a stiff headwind.

Its second role is one you might not see, but you’ll certainly appreciate over time. Made from high-purity zinc, this trim tab sacrifices itself to protect the rest of your outboard from corrosion. That’s what makes it so critical for saltwater boaters — it absorbs electrochemical reactions before they can eat away at your engine’s metal surfaces. The result is longer life, less maintenance, and a cleaner, healthier lower unit.

Installation is quick and straightforward. With a few standard tools, you’ll have it aligned and ready to go in minutes. Once it’s on, it just works — no noise, no upkeep, just quiet, steady protection every time you hit the water.

Why Buy OEM

Choosing a genuine Mercury Marine part like the 853762 Zinc Trim Tab isn’t just about getting the right fit — it’s about ensuring long-term performance and protection. Mercury’s OEM trim tabs are precision-balanced and tested to match the hydrodynamics of your engine perfectly. Aftermarket options may claim compatibility, but slight variations in weight or shape can affect handling and reduce corrosion protection.

This OEM tab, on the other hand, is built from the same materials Mercury uses in its factory assemblies and designed to meet the same rigorous testing standards. It’s the smart investment for boaters who want peace of mind, knowing their steering will stay sharp and their engine will stay protected — trip after trip, tide after tide.

FAQ

Q1: Which Mercury engines or systems does the Zinc Trim Tab fit?
It fits Mercury 25–50HP 2-stroke Jet, International, and Lightning outboards (2006 & newer) and 25–30HP 4-stroke EFI 3-cylinder outboards (2022 & newer).

Q2: What makes this part different from aftermarket alternatives?
Mercury’s OEM trim tabs are precisely balanced and made from marine-grade zinc that outlasts generic replacements, ensuring better steering and corrosion resistance.

Q3: How do I know if this is the correct replacement for my setup?
Check your owner’s or service manual for part number 853762, or match it to your existing trim tab for visual confirmation.

Q4: Can this be used in both saltwater and freshwater applications?
Yes — it’s especially effective in saltwater, where zinc’s sacrificial properties help prevent corrosion, but it performs equally well in freshwater.

Q5: Is installation straightforward for most boat owners?
Absolutely. Most boaters can replace their trim tab in under 15 minutes using standard tools and a torque wrench for proper alignment.