Mercury – Water Pump Repair Kit | V6 & V8 Sterndrive Series | High-Flow Cooling Components | 8M0104229

Overview

Every boater knows that the health of a sterndrive lives and dies by its cooling system. When you are cruising across open water or easing toward your slip at sunset, you expect your engine temperatures to stay steady and predictable. That kind of confidence only comes from using parts you can trust—parts that are built to handle long weekends, rough chop and the unexpected moments every season brings. The Quicksilver 8M0104229 Water Pump Repair Kit gives you that peace of mind in the simplest, most essential way: by restoring strong, reliable water flow to your V6 or V8 MerCruiser sterndrive.

Key Features

• Two-piece kit designed to fully refresh your water pump system
• Includes premium replacement impeller and o-ring
• Built for high, consistent water flow to protect your engine at all RPM levels
• Elastomer impeller blades stay flexible across wide temperature swings
• Manufactured to Mercury Marine original equipment specifications for exact fit and dependable performance

Engine & Boat Compatibility

• Fits V6 and V8 MerCruiser sterndrive engines
• Compatible with many Alpha and Bravo series drives using this impeller configuration
• Common applications include runabouts, cruisers, bowriders, deck boats and classic sterndrive builds
• Ideal for boats that experience mixed use: long idle times, high-speed runs and seasonal storage

Performance & Practical Benefits

Replacing a water pump impeller is one of the smartest bits of preventative maintenance a boater can do. Once installed, the 8M0104229 kit immediately brings back the “steady and smooth” feel you expect from a properly cooled MerCruiser.

You will notice the difference in how confidently your engine holds temperature, whether you push hard across open water or spend the afternoon towing kids on a tube. The improved flow helps your cooling system stay efficient, and the new o-ring seals everything up tight—no guesswork, no small leaks turning into big headaches.

The impeller’s elastomer construction is tough but forgiving. It flexes without fatiguing, even when you run through cold morning starts and hot afternoon throttles. That means dependable operation throughout the entire boating season and less stress on your engine’s internal components.

Why Buy OEM

When it comes to sterndrive cooling parts, original equipment is not a luxury—it is a necessity. The Quicksilver 8M0104229 kit is engineered to match Mercury Marine’s precise standards, offering long-term reliability that generic aftermarket kits simply cannot match. You will get cleaner fitment, better cooling performance and durability that pays for itself by preventing overheating and internal damage. It is the choice seasoned boaters make because it works right the first time.

FAQ Section

Q1: Which engines does this water pump kit fit?

It fits V6 and V8 MerCruiser sterndrive engines that use this impeller configuration.

Q2: What sets this kit apart from aftermarket versions?

It is built to genuine Mercury Marine standards, ensuring dependable cooling, proper fit and long service life.

Q3: How can I verify it is the right kit for my sterndrive?

Check your owner’s manual or confirm your sterndrive model against the kit’s compatibility group.

Q4: Is it suitable for both saltwater and freshwater use?

Yes—its materials and design handle both environments without issue.

Q5: Is installation manageable for most boat owners?

If you are comfortable performing routine sterndrive maintenance, installation is straightforward with basic tools.