Mercury – Quicksilver Alternator | Marine Charging System | Corrosion-Resistant Finish | 8M6007509

Overview

There’s a moment every boater knows well—the quiet hum before the engine fires, the tap of waves against the hull, and the feeling that everything onboard is ready to go. A dependable alternator is one of those behind-the-scenes parts that makes that confidence possible. The Quicksilver 8M6007509 alternator brings that sense of certainty back into your trips, delivering steady power for engines that work hard in unpredictable conditions. Whether you’re cruising toward open water or easing back into the marina, it keeps your electrical system stable, reliable, and ready for whatever the day brings.

Key Features

• Designed for select Volvo-Penta sterndrive and inboard engines (2000–2007)
• Internal regulator and internal fan for efficient, consistent charging
• Marine-rated 12-volt, 75-amp output for robust electrical performance
• Plated fans, pulleys, and hardware for corrosion resistance in marine environments
• Built-in flame arrestor screens meeting Marine SAEJ1171 safety certification
• Engineered to meet or exceed original Volvo-Penta specifications

Engine & Boat Compatibility

This alternator is compatible with:

• Volvo-Penta sterndrive and inboard engines produced between 2000 and 2007
• Boats requiring stable charging in varying conditions—sport boats, cabin cruisers, workboats, and family runabouts
• Electrical systems originally equipped with Valeo or Volvo alternators replaced by part number 3862613

If your engine lives in the Volvo-Penta 2000–2007 era, this alternator is built to be a direct-fit solution.

Performance & Practical Benefits

When you install the 8M6007509, you’ll immediately notice steadier electrical performance—brighter gauges, cleaner battery charging, and a smoother-running engine. The internal regulator helps maintain consistent voltage even when load demands change, while the internal fan keeps temperatures in check on long, hot days.

Its corrosion-resistant construction is a huge advantage for boaters who spend time in saltwater or humid climates. The plated components resist rust and pitting, keeping the alternator working smoothly season after season. It also features flame-arrestor screens, a must-have for marine safety, especially when you’re running tight engine compartments with limited ventilation.

Installation is straightforward thanks to its direct-replacement design and included wiring considerations. Once mounted, it becomes the kind of part you barely think about—because it simply works.

Why Buy OEM

Choosing a genuine Mercury Marine alternator is about protecting your investment.

• Built to OE standards for Volvo-Penta engines
• Tested to endure vibration, heat, salt exposure, and high electrical load
• Offers longer lifespan and better output consistency than lower-priced aftermarket units
• Reduces the risk of electrical issues, undercharging, or premature battery wear
• Designed to install cleanly without modification

If you want a part that performs right the first time—and keeps doing so—OEM is the way to go.

FAQ

Q1: Which engines does this alternator fit?

It fits select Volvo-Penta sterndrive and inboard engines from 2000–2007.

Q2: How does it differ from aftermarket versions?

You’ll get better corrosion protection, more consistent charging, and OE-level reliability.

Q3: How can I confirm fitment?

Check your engine’s manual or verify against Volvo part number 3862613.

Q4: Can it be used in both saltwater and freshwater?

Yes—its plated components and marine-rated design handle both environments well.

Q5: Is installation simple?

Most boat owners with basic mechanical experience find the installation direct and manageable.