Mercury – 100 Hour Maintenance Kit | Bravo Three Sterndrive | OEM Components | 8M0147058

Overview

There’s a certain confidence that comes with running a Bravo Three sterndrive. Between the dual-prop control, the smooth bite in tight turns, and the steady push when the water gets choppy, it’s a system you come to rely on. But even the best drivetrains need steady care. The Mercury 8M0147058 Bravo Three 100 Hour Maintenance Kit bundles all the essentials into one clean, well-built package. It’s the kind of kit that makes seasonal service feel less like a chore and more like one more step toward a dependable, trouble-free season on the water.

Key Features

• Complete 100-hour maintenance kit tailored for Bravo Three sterndrives
• Includes sterndrive install O-ring kit
• Includes aluminum anode kit for corrosion protection
• Includes gearcase drain seals for secure, mess-free service
• Built to Mercury Marine’s original equipment standards for fit and longevity

Engine & Boat Compatibility

• Designed for MerCruiser Bravo Three sterndrives (2003 and newer)
• Commonly paired with V6 and V8 MerCruiser sterndrive engines
• Ideal for cruisers, sport boats, cabin boats, pontoons with sterndrives, and twin-engine offshore hulls
• Compatible with both freshwater and saltwater setups

Performance & Practical Benefits

Anyone who has ever serviced a Bravo Three drive knows these units work hard—with two props digging in and transferring torque efficiently, the drive needs everything in its system sealed, aligned, and protected. This 100-hour kit delivers just that.

The O-ring kit helps ensure watertight, confident sealing throughout the drive assembly. You’ll feel that secure, correct fit the moment each piece seats into place. The aluminum anodes are crucial for protecting your Bravo Three in any environment, especially saltwater, where corrosion can creep in fast if left unchecked. And the gearcase drain seals help maintain clean, steady lubrication changes—keeping shifts smooth and the props turning quietly and predictably.

Once the service is complete, the drive feels renewed. Shifts are crisp, engagement is clean, and the whole system runs with the kind of quiet confidence that reminds you why proper maintenance matters.

Why Buy OEM

With something as important as a Bravo Three sterndrive, cutting corners simply doesn’t pay off. OEM Mercury parts guarantee the right materials, the right fit, and the right protection. Aftermarket alternatives may look similar, but they rarely match the precision or durability needed for marine use. This kit offers long-term savings through reliability, fewer repeat repairs, and the comfort of knowing your sterndrive is being maintained exactly as Mercury engineered it.

If you’re a boater who values dependability, OEM is the only path that makes sense.

FAQ

Q1: Which systems does the 8M0147058 kit fit?

It’s built specifically for MerCruiser Bravo Three sterndrives (2003 and newer).

Q2: How is this kit better than aftermarket versions?

OEM parts guarantee proper fitment, strong corrosion resistance, and proven long-term reliability.

Q3: How can I confirm this is the right kit for my drive?

Check your sterndrive model—if it’s Bravo Three and built 2003 or later, this is the correct kit.

Q4: Can it be used in saltwater?

Yes. The aluminum anodes included in the kit are designed for both saltwater and freshwater protection.

Q5: Is installation straightforward?

If you’re comfortable performing routine sterndrive service, this kit installs easily with standard tools.