Mercury – Alternator | Volvo-Penta Sterndrive Series | Corrosion-Resistant Marine Finish | 8M6007493

Overview

Anyone who spends time on the water knows how quickly a perfect day can shift when your electrical system stops keeping up. You hear it first—the hesitation when you crank the engine, the dimming of a chartplotter, the uneasy feeling that tells you something isn’t charging the way it should. Out there, reliability isn’t just convenient; it’s essential. That’s why boaters trust Mercury Marine parts. With part number 8M6007493, you get an alternator that delivers steady, confident power every time you fire up your Volvo-Penta sterndrive or inboard.

Key Features

• Provides dependable charging for a range of Volvo-Penta sterndrive and inboard engines.
• Built with corrosion-resistant hardware, plated fans, and durable pulleys.
• Internal voltage regulator paired with an external cooling fan.
• Delivers consistent, marine-ready output at twelve volts and sixty-five amps.
• Designed to meet strict marine safety requirements, including flame-arrestor screening.
• Engineered for longevity in harsh environments with moisture, heat, and constant vibration.

Engine & Boat Compatibility

• Fits select Volvo-Penta sterndrive and inboard engine platforms.
• Ideal for cruisers, express boats, runabouts, coastal fishing vessels, and workboats.
• Compatible with many common marine charging systems that require a twelve-volt, sixty-five amp alternator.
• Suitable for vessels operated in both freshwater and saltwater conditions.

Performance & Practical Benefits

When you install this alternator, the difference shows up in the details. Your gauges settle into a steady rhythm, electronics stay bright and responsive, and the engine fires up with that solid, reassuring crank you only get from a healthy power system. The internal regulator keeps everything balanced, while the external fan helps the alternator stay cool even during long runs or heavy electrical loads.

You’ll appreciate how tight and stable the mounting feels once it’s in place. There’s no rattle, no inconsistent charging, no guessing whether your battery bank will hold up through the afternoon. The corrosion-resistant materials lend a toughness that matters in the marine world—where salt spray doesn’t take a day off and humidity creeps into every compartment. This Mercury Marine part gives you the kind of quiet reliability that makes your whole time on the water feel smoother and more secure.

Why Buy OEM

There’s no shortcut when it comes to your boat’s charging system. An aftermarket alternator might cost less upfront, but the long-term reliability often just isn’t there—and alternator failure never seems to happen at the dock. Mercury Marine parts are engineered to match the original build quality and performance standards your engine was designed for. Part number 8M6007493 gives you consistent output, proper fitment, and the durability you need to stay confident on the water. If you’re the kind of boater who values doing things right the first time, OEM is the smart choice.

FAQ

Q1: Which engines does this alternator fit?

It’s designed for a range of Volvo-Penta sterndrive and inboard engines.

Q2: What sets it apart from aftermarket alternators?

Its materials, internal regulation, and marine-specific construction provide more dependable performance.

Q3: How do I confirm it matches my setup?

Check your engine model and compare with your owner or service manual.

Q4: Can it be used in saltwater and freshwater?

Yes, it’s built with corrosion-resistant components suitable for either environment.

Q5: Is installation straightforward?

Most boaters find it direct and manageable, especially with proper access to the mounting brackets.