Mercury – 24 Volt 175 Amp Alternator | Heavy Duty Charging Series | Marine Grade Construction | 8M6007498

Overview

There is a special kind of comfort that comes when you glance at your gauges offshore and everything looks steady. Voltage is solid, lights are bright, electronics are clear, and you are not wondering if the batteries will still have enough in them when you hit the starter again. That is the quiet work a good alternator does for you all day long. You rarely see it, but you feel the difference when it is doing its job right.

This Mercury Marine part is built for boats that carry real electrical loads—radar, pumps, winches, navigation gear, lights that stay on long after sunset. With Mercury Marine part number 8M6007498 bolted to the engine, you will feel more relaxed about running what you need to run, when you need it, without babying the switches.

Key Features

• High output alternator designed to keep twenty four volt marine electrical systems charged
• Rated at one hundred seventy five amps for demanding engine and house loads
• Internal regulator with external fan for controlled charging and steady cooling
• Plated fan, pulley, and hardware to resist corrosion in harsh marine environments
• Flame arrestor screens that meet Marine SAE J1171 ignition protection standards
• Engineered as a Mercury Marine part to meet or exceed original equipment manufacturer output and durability

Engine & Boat Compatibility

• For use on various marine engine applications that specify a twenty four volt, one hundred seventy five amp alternator
• Common on diesel inboard engines powering cruisers, trawlers, sportfishing boats, and commercial vessels
• Well suited for workboats, charter boats, and long range cruisers with heavy electrical demands
• A strong choice for refits where older charging systems are being upgraded to support modern electronics and accessories

Performance & Practical Benefits

In daily use, this alternator shows its value in how calm your electrical system feels. Voltage stays steady instead of wandering up and down. Batteries recover quickly after engine starts, windlass use, or long anchor nights with lights and music playing. You will see it in the way your screens stay bright and sharp when you throttle up, instead of dimming or flickering.

The internal regulator helps the system charge smoothly, while the external fan and plated components keep things cool and protected in a hot, salty engine room. It is the kind of hardware you notice most when the weather turns ugly and every pump, wiper, and light seems to be on at once. Instead of worrying about what to shut off, you can focus on steering, watching the seas, and keeping people safe. Installed correctly, the alternator feels tight and secure on its mounts, with a smooth, steady whir that quickly fades into the background noise of a healthy engine.

Why Buy OEM

When you are depending on your boat to carry you through the night, the charging system is not the place to experiment. A genuine Mercury Marine original equipment manufacturer alternator is built around the exact kind of duty cycle and environment a marine engine sees. It is not just a repurposed automotive unit; it is designed and tested for salt, heat, vibration, and long hours.

In the real world, that means fewer unexplained low voltage alarms, less cooked wiring, and fewer surprise failures that leave you chasing electrical ghosts at the dock. If a friend asked what to put on a boat that runs a twenty four volt system with serious electrical needs, I would steer them toward a true original equipment alternator—and to part number 8M6007498 when it matches their engine. It is the practical, long term choice for anyone who wants their boat ready to go when the lines come off.

FAQ

Q1: Which Mercury engines or systems does the 24 Volt 175 Amp Alternator 8M6007498 fit?

This Mercury Marine part is intended for various marine engine applications that call for a twenty four volt, one hundred seventy five amp alternator and specify part number 8M6007498 or a direct cross in the service information.

Q2: What makes this part different from aftermarket alternatives?

It is built to original equipment manufacturer standards for output, cooling, and ignition protection, using marine focused materials and design rather than simply adapting an automotive alternator.

Q3: How do I know if this is the correct replacement for my setup?

Check the label on your current alternator and your owner’s or service manual. If they list Mercury Marine part number 8M6007498, or show it as a direct replacement, you are choosing the right unit.

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

Yes. The plated hardware, flame arrestor screens, and marine grade construction are designed for both saltwater and freshwater use when normal maintenance and corrosion protection are followed.

Q5: Is installation straightforward for most boat owners?

If you are comfortable working around belts, heavy cables, and tight engine spaces, installation is manageable. Follow the service instructions, ensure all wiring is tight and secure, and verify belt tension so the alternator runs smooth and steady.