Mercury – L6 Verado 100 Hour Maintenance Kit | Precision Service Package | Marine-Grade Components | 8M0120657

Overview

If you spend any amount of time behind the helm of a Mercury Verado, you know how deeply satisfying it is to feel that supercharged inline-six come alive. It is smooth, it is confident, and it delivers the kind of power that makes long runs feel effortless. That level of performance deserves care that is just as dependable, and when the 100-hour mark rolls around, you want a kit that keeps everything running exactly the way Mercury intended.

The Mercury 8M0120657 L6 Verado 100 Hour Maintenance Kit brings that peace of mind back into the routine. It packs the essentials into one tidy box, saving you from digging through part numbers or guessing what might still be serviceable. It is straightforward, reliable, and built for boaters who understand that proper maintenance is what lets you head miles offshore with total confidence.

Key Features

• Complete 100-hour service kit for Mercury L6 200–400 horsepower Verado EFI outboards
• Contains oil filter, fuel filter, oil drain seal, and two gearcase seals
• Premium filtration media with high pleat counts for strong debris-holding capacity
• Heavy-duty electroplated filter housings designed to resist corrosion
• Engineered and packaged to Mercury Marine’s exact standards for performance and longevity

Engine & Boat Compatibility

• Fits Mercury L6 200–400 horsepower Verado EFI models
• Designed for engines within serial number range 2B144123 through 3B342962
• Common on offshore center consoles, performance hulls, pilothouse boats, bay boats, and coastal cruisers
• Ideal for single-engine and multi-engine Verado installations

Performance & Practical Benefits

A fresh 100-hour service does more than check a box on your maintenance list—it changes how the engine sounds, responds, and holds power under load. With new filters and seals in place, oil flow stabilizes, pressure remains consistent, and the gearcase stays properly protected. You will notice smoother idle, steadier acceleration, and cleaner engine tone at cruising speed.

The premium filters in this kit are built for the Verado’s demanding operating environment. Their heavy-duty housings resist corrosion in humid, salt-rich air, while the tightly engineered internal media traps contaminants without restricting flow. The new seals restore the snug, watertight fit that protects your gearcase from intrusion during long days in rough chop or repeated beach launches.

Installation is simple if you follow Mercury’s recommended service steps, and once the work is done, you’ll feel the difference the moment you push the throttle forward. It is a small investment in long-term reliability that pays for itself every season.

Why Buy OEM

• Designed specifically for the supercharged L6 Verado platform
• Tested in extreme conditions to ensure long-term protection
• Helps maintain factory performance, fuel efficiency, and quietness
• Avoids fitment issues or premature breakdown common with aftermarket kits
• Gives you the assurance that every component works exactly as Mercury intended

When you rely on a performance engine, choosing genuine Mercury Marine parts is simply the smart move.

FAQ

Q1: Which engines does the 8M0120657 kit fit?

It fits Mercury L6 Verado EFI models from 200 horsepower to 400 horsepower within the specified serial number range.

Q2: What sets this apart from aftermarket maintenance kits?

OEM Mercury components are engineered to match factory performance and durability, while aftermarket parts often vary in quality and fit.

Q3: How do I confirm compatibility with my engine?

Check your engine’s serial number and compare it to the approved range listed for this kit.

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

Absolutely. Every component is designed to withstand both, including harsh saltwater conditions.

Q5: Is installation manageable for most owners?

If you’re comfortable with routine outboard maintenance, this kit is very straightforward to install.