Mercury – Water Separating and Sensing Fuel Filter Kit | Fuel Protection Series | Metal & Composite Assembly | 8M0157707

Overview

If you’ve spent any real time running a Verado, you know how much trust you place in your fuel system. When you’re miles from the dock and the wind’s starting to pick up, you want to know your engine is getting clean, dry fuel — no surprises, no hiccups. That’s why this Mercury Marine part feels so reassuring. The 8M0157707 Water Separating and Sensing Fuel Filter Kit gives your engine the kind of protection that lets you focus on the water instead of worrying about what’s happening inside the lines. Whether you’re cruising out at first light or heading home after a long day offshore, it brings that quiet confidence that everything underneath the cowling is working the way it should.

Key Features

• Ten micron water separating filter removes debris, particles, and moisture
• Integrated water-in-fuel sensor alerts you before contamination becomes a problem
• Includes fuel filter head, filter canister, wiring harness, sensor, and mounting hardware
• Designed to deliver clean, steady fuel flow to high-performance Verado engines
• Durable metal and composite construction built for real marine conditions

Engine & Boat Compatibility

• Fits Mercury Gen 5 inline six-cylinder Verado outboards equipped with a Fuel Supply Module
• Suitable for selected inboard systems and installations with onboard generators
• Ideal for offshore center consoles, heavy-use fishing boats, dual consoles, and performance saltwater vessels
• Works well on boats that run long distances or spend hours at varying throttle ranges

Performance & Practical Benefits

What you’ll notice with this kit isn’t dramatic — and that’s exactly the point. A good fuel filtration setup works quietly, keeping the engine running smooth and steady while you focus on the day ahead. The ten micron element pulls out the finer contaminants that often slip into tanks during refueling or rough conditions. Water, which is the hidden enemy of modern engines, gets trapped before it can cause hesitation, corrosion, or power loss.

The built-in water-in-fuel sensor is one of those features that feels like an extra set of eyes. If contamination starts to build, you’ll know before it becomes a breakdown. Installation is straightforward: the included mounting head, wiring harness, and fittings give you everything needed to secure the system cleanly and correctly. Once in place, it becomes a reliable part of your engine’s daily rhythm — letting fuel move freely, helping the engine idle cleaner, and giving you a smoother, more responsive run when the seas get bumpy.

Over time, this kit helps protect injectors, stabilize fuel delivery, and reduce the long-term wear that comes from moisture sneaking into places it doesn’t belong. It’s one of those upgrades that earns its keep every time you turn the key.

Why Buy OEM

Fuel filtration isn’t something to gamble with. Mercury Marine designs this system specifically for the demands of Verado engines — precise flow rates, proper sealing surfaces, and electrical compatibility with water-in-fuel monitoring. Aftermarket systems may appear similar, but the small differences inside can add up to bigger problems later.

Choosing an OEM kit means choosing reliability that’s been tested in the same real-world conditions you boat in. Longer engine life, cleaner fuel, fewer surprises during the season — it’s practical, dependable, and exactly what you want protecting a premium outboard. It’s the kind of advice you’d give a fellow boater without hesitation.

FAQ

Q1: Which Mercury engines does the 8M0157707 kit fit?

It’s made for Gen 5 inline six-cylinder Verado outboards equipped with a Fuel Supply Module.

Q2: What makes this kit different from aftermarket versions?

The OEM kit includes a precise ten micron filter, a reliable water-in-fuel sensor, and hardware engineered specifically for Verado flow and pressure requirements.

Q3: How can I confirm it’s the right replacement?

Check your engine’s manual or verify that your Verado uses an FSM-equipped filtration system.

Q4: Can it be used in saltwater and freshwater?

Yes — the materials and coatings are designed for long-term exposure to either environment.

Q5: Is installation straightforward?

It is. Most boaters or technicians can install the complete kit using standard tools.