Mercury – 100 Hour Maintenance Kit | V6 & V8 FourStroke Series | OEM Components | 8M0149929

Overview

Any boater who puts real hours on the water knows there’s a certain comfort that comes from staying ahead on maintenance. When you’re running a Mercury FourStroke—especially a V6 or V8 that pulls hard, idles smooth, and carries you across long miles—you want to know everything beneath the cowl is ready for the next run. That’s why this kit matters. The Mercury 8M0149929 100 Hour Maintenance Kit keeps your engine reliable, steady, and predictable, whether you're chasing early-morning redfish at first light or cruising your family back toward the marina with a sunset behind you. It’s the kind of upkeep that feels less like a chore and more like protecting the boat you love.

Key Features

• Complete 100-hour service kit for Mercury V6 and V8 FourStroke outboards
• Includes oil filter, fuel filter, and gearcase drain seals
• Premium internal pleat counts for stronger filtration
• Heavy-duty electroplated filter housings resist corrosion in harsh marine environments
• Designed to meet full Mercury Marine part specifications for long engine life

Engine & Boat Compatibility

• Fits Mercury 3.4L V6 and 4.6L V8 175–300hp FourStroke outboards
• Compatible with engines serial number 2B529482 and higher
• Ideal for center consoles, bay boats, pontoons, freshwater fishing rigs, offshore multi-engine setups, and coastal workboats

Performance & Practical Benefits

A well-maintained FourStroke doesn't just run better—it feels better. With clean oil flow, steady fuel delivery, and sealed gearcase components, your engine responds the way it was built to. You’ll notice a smoother idle when you’re waiting for the dock to clear, tighter throttle response when you push ahead, and a more confident tone from the motor when the seas get lumpy.

This kit is designed for the kind of reliability you count on season after season. The filters are engineered to keep debris out, fuel clean, and lubrication tight across a wide range of operating conditions. The heavy-duty housings are tough enough to withstand salt spray, wet storage, heat cycles, and everything else a hard-run outboard endures. It’s simple: when your engine breathes clean and stays protected, it runs longer, cooler, and more efficiently.

Installation feels straightforward, too—no surprises, no odd fitment issues, no guesswork. Every component is built to line up exactly as Mercury intended, which means less time turning wrenches and more time getting back out on the water.

Why Buy OEM

If you’re doing your own 100-hour service, using genuine Mercury Marine parts is one of the smartest choices you can make.

• Perfect fit and reliable performance
• Tested and approved to handle real-world boating conditions
• Longer service life compared to many aftermarket alternatives
• Protects warranty compliance and engine longevity
• Saves time by ensuring everything installs tightly and correctly the first time

Think of it like giving your engine the same level of care Mercury engineers designed it for. When you run high-hour or high-demand boating, that extra assurance matters.

FAQ

Q1: Which Mercury engines does this kit fit?

It fits 3.4L V6 and 4.6L V8 175–300hp FourStroke outboards, serial number 2B529482 and above.

Q2: What makes this different from aftermarket maintenance kits?

OEM Mercury parts deliver factory-level filtration, durability, and corrosion resistance—qualities cheaper filters rarely match.

Q3: How do I know this is the right kit for my engine?

Check your serial number; if it’s 2B529482 or higher, this is the correct 100-hour kit.

Q4: Can I use this kit for both saltwater and freshwater engines?

Yes. Every component is engineered for tough marine environments, including saltwater exposure.

Q5: Is installation straightforward?

Absolutely. Each item fits directly in place with no modifications needed.