Mercury – MerCruiser Bravo Three 300 Hour Maintenance Kit | Precision Sterndrive Service Kit | Marine-Ready Components | 8M0147076

Overview

There’s a certain trust that builds over time with a Bravo Three drive — the kind that comes from countless smooth shifts, clean acceleration and steady handling even when the water turns unpredictable. When you run a drive like that, you feel every bit of its engineering working beneath you. But keeping that reliability alive means staying on top of the maintenance that matters. The Mercury Marine part number 8M0147076 300-hour maintenance kit brings together everything you need to keep a Bravo Three operating with the same confidence and power you’ve come to rely on.

Key Features

• Complete 300-hour maintenance kit for MerCruiser Bravo Three sterndrives (2003–2016)
• Includes sterndrive install gasket kit, aluminum anode kit, gearcase drain seals, transom repair kit, shift cable kit and gearcase fill and drain screws
• Durable components built specifically for long-term marine use
• Marine-grade aluminum anodes for dependable corrosion protection
• Precision-fit seals and hardware for clean, secure installation

Engine & Boat Compatibility

• Fits MerCruiser Bravo Three sterndrives manufactured from 2003 to 2016
• Common on performance cruisers, larger fishing boats, heavy pontoons, offshore models and multi-prop recreational boats
• Ideal for boaters who rely on the added thrust, control and power handling that dual-prop Bravo Three systems deliver

Performance & Practical Benefits

Bravo Three drives are known for their incredible control and torque, but that level of performance puts a bigger load on key components. This kit is designed to restore the performance you feel every time you shift, trim or throttle up. Fresh gaskets create a tight seal that helps maintain proper pressure and prevents leaks. New gearcase drain seals and fill screws make maintenance cleaner and more dependable. The shift cable kit brings back that crisp engagement you notice the instant you ease into forward or reverse.

The aluminum anodes are especially important for Bravo Three owners, since dual props sit deeper and often see more exposure in both freshwater and saltwater. These anodes protect your sterndrive from corrosion, giving you a steadier, longer-lasting system. Together, these parts bring back the smooth, predictable handling that Bravo Three drives are celebrated for. You’ll notice quieter operation, better response and a more secure feel at the helm — especially when docking, backing or navigating tight spaces.

Installation is straightforward because every component is engineered to match the drive exactly. No forcing parts, no guessing at fitment — just a clean, proper install that leaves your drive feeling refreshed and ready for the season ahead.

Why Buy OEM

When you’re servicing a Bravo Three, genuine Mercury Marine parts are the safest and most practical choice. They match the original design, materials and tolerances of the drive, ensuring a longer life and better performance than aftermarket options. OEM components also save time during installation because they fit correctly the first time. Aftermarket alternatives might look similar, but they often fall short in durability, sealing performance or corrosion protection. If a fellow boater asked for advice, the answer would be simple: go with the Mercury parts built for your system, and your drive will thank you for it.

FAQ

Q1: Which systems does the 8M0147076 maintenance kit fit?

It fits MerCruiser Bravo Three sterndrives manufactured between 2003 and 2016.

Q2: What sets this OEM kit apart from aftermarket options?

Material quality, exact fitment and long-term durability — all engineered specifically for Bravo Three systems.

Q3: How can I confirm this is the correct kit?

If your boat runs a Bravo Three drive within the 2003–2016 year range, this Mercury Marine part number is the correct match.

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

Absolutely. The aluminum anodes and marine-rated components hold up well in both environments.

Q5: Is installation manageable for most boat owners?

Yes. If you’re familiar with sterndrive service, this kit installs cleanly and securely thanks to its precise OEM fit.