Mercury – 300 Hour Maintenance Kit with Anodes | Verado L6 Service Package | Complete OEM Components | 8M0097859

Overview

There’s something special about running a Verado. The quiet push when the supercharger spools, the way the boat lifts cleanly onto plane, the steady confidence that carries you through chop, tide lines, and long runs offshore. But even the best engines need thoughtful care, and the 300-hour service is one of the big ones—the kind you don’t cut corners on. The Mercury 8M0097859 300 Hour Maintenance Kit gives you everything your L6 Verado needs in one box, built to restore that factory-fresh feel and keep your engine ready for wherever the next season leads. It’s a simple way to protect the motor you depend on.

Key Features

• Complete 300-hour service kit for L6 Verado EFI FourStroke outboards
• Fits 200–300 horsepower models with serial numbers 2B144122 and lower
• Includes:
  • Oil filter
  • Low- and high-pressure fuel filters
  • Gearcase drain seals (2)
  • Six spark plugs
  • Thermostat kit
  • Water impeller kit
  • Alternator belt
  • Anodes
• Each part meets Mercury’s original equipment specifications

Engine & Boat Compatibility

This Mercury Marine part number 8M0097859 fits:

• L6 200–300 horsepower Verado EFI FourStroke engines
• Serial number range 2B144122 and below
• Common installations include offshore center consoles, deep-V fishing boats, coastal cruisers, pontoon performance setups, and hybrid bay boats

If your setup runs an inline-six Verado, this kit is built specifically for it.

Performance & Practical Benefits

When you finish a full 300-hour service with this kit, you feel the difference almost immediately. Fresh spark plugs bring back crisp throttle response. Clean filters help your engine breathe and fuel properly, especially under load. New seals keep the gearcase tight and protected. The impeller kit restores strong, steady cooling flow—something every Verado relies on, especially in warm summer water. And the new anodes give your engine renewed corrosion defense, which is essential for saltwater use.

Everything in the kit fits the way it’s supposed to. No forcing, no improvising—just the right parts clicking into place. That’s what keeps the engine running smooth, the idle steady, and the long runs quiet and comfortable. When you button up the service and fire the engine, you know the job was done right.

Why Buy OEM

You don’t own a Verado to settle for “good enough.” Here’s why OEM parts matter:

• Exact engineering for the unique demands of the supercharged Verado platform
• Long-term reliability backed by Mercury Marine testing
• Correct filtration, sealing, and cooling performance
• Better corrosion resistance and component longevity
• Everything you need in one box—no mismatched aftermarket pieces

It’s the practical, trustworthy choice for any boater who depends on their engine every weekend.

FAQ

Q1: Which engines does the 8M0097859 kit fit?

It fits Mercury L6 Verado EFI FourStroke outboards between 200 and 300 horsepower, serial number 2B144122 and below.

Q2: What makes this kit better than aftermarket options?

OEM parts match the engine’s exact tolerances, ensuring smooth performance, proper filtration, and long-term durability.

Q3: How do I confirm this is the correct kit for my engine?

Check your engine’s serial number and verify that it falls within the specified range.

Q4: Can this kit be used in saltwater and freshwater?

Absolutely—these components are built for either environment, including corrosion-resistant anodes.

Q5: Is the installation straightforward?

Most experienced boat owners can complete the service with a Mercury service manual and basic tools.