Mercury – Quicksilver Alternator | Marine Charging System | Corrosion-Resistant Finish | 8M6007448

Overview

When you’re running an older diesel or European marine engine, dependable charging isn’t a luxury — it’s peace of mind. This Quicksilver alternator is built for boaters who know their engine well and expect it to behave the same way every time they leave the dock. It’s the kind of part you trust quietly, whether you’re pushing through open water or idling into a tight harbor slip. Once it’s installed, it simply works, and that steady confidence carries through every hour on the water.

Key Features

• Provides consistent electrical charging for marine engines

• Twelve-volt system with a fifty amp output capacity

• Internal voltage regulator for stable power delivery

• External cooling fan designed for marine engine compartments

• Plated fan, pulley, and mounting hardware for corrosion resistance

• Flame arrestor screen that meets Marine safety certification standards

• Built to meet or exceed original equipment manufacturer specifications

• Wiring harness included when required by specific applications

Engine & Boat Compatibility

• Designed for use on select Volvo-Penta marine engines

• Compatible with Bukh marine diesel engines

• Used on certain Valeo-equipped marine applications

• Suitable for BMW marine engines requiring this configuration

• Commonly found on sailboats, displacement cruisers, trawlers, and classic motor yachts

• Always confirm compatibility using your owner’s or service manual

Performance & Practical Benefits

Out on the water, this alternator delivers a steady, predictable charge that keeps your batteries healthy and your systems running clean. Navigation electronics stay stable, lighting remains consistent, and engine starts feel confident every time. Installation tends to be straightforward, with precise mounting points that line up cleanly and reduce downtime. Its corrosion-resistant construction holds up well in humid engine rooms, salt air, and long stretches between maintenance checks. Over time, that durability translates into fewer electrical worries and more enjoyable hours underway.

Why Buy OEM

Choosing a genuine Mercury Marine part through Quicksilver is about respecting the engine you rely on. This alternator is engineered specifically for marine environments, not adapted from automotive designs that struggle with moisture and heat. It fits correctly the first time, delivers the expected output, and holds up over seasons of use. While aftermarket options may promise savings upfront, OEM quality often proves more cost-effective in the long run by avoiding premature failures and repeated replacements. It’s the kind of advice seasoned boaters share because they’ve learned it the hard way.

Frequently Asked Questions

Which Mercury engines or systems does the Quicksilver alternator fit?
This alternator is designed for select Volvo-Penta, Bukh, Valeo, and BMW marine engines that require a twelve-volt, fifty amp charging system.

What makes this part different from aftermarket alternatives?
It’s built to original equipment manufacturer standards with marine-specific materials, corrosion protection, and safety certification that many aftermarket units lack.

How do I know if this is the correct replacement for my setup?
Match the part number 8M6007448 with your existing alternator and confirm fitment in your engine’s service manual.

Can this be used in both saltwater and freshwater applications?
Yes. It’s designed for marine environments and performs well in both saltwater and freshwater when properly maintained.

Is installation straightforward for most boat owners?
For experienced owners or technicians, installation is typically smooth. Professional installation is recommended if you’re unfamiliar with marine electrical systems.