Mercury – Waste Level Gauge | Black Face | 2-1/8" (52 mm) | 79-8M0052847

Overview

The Mercury Waste Level Gauge (79-8M0052847) keeps you informed of your holding tank levels so you can plan pump-outs before they’re needed. It features a black face, clean white markings, and a glass lens for crisp, easy visibility in any lighting. Built to fit a standard 2-1/8" (52 mm) dash hole, this gauge integrates with SmartCraft systems when compatible sensors are installed. It’s durable, easy to read, and designed to match the rest of your Mercury black-face gauge set.

Key Features

• Waste or Holding Tank Display – Monitors onboard waste tank levels via SmartCraft sensors.
• Black Face & Glass Lens – Sleek, high-contrast design that’s easy to read day or night.
• Standard 2-1/8" (52 mm) Fit – Installs easily in most dashboards or panels.
• SmartCraft-Ready – Connects with Mercury SmartCraft systems that include waste level monitoring.
• Reliable Readings – Provides accurate, real-time tank status to help manage maintenance.
• Marine-Grade Construction – UV-resistant, corrosion-proof, and vibration-tested for years of use.
• OEM Look & Fit – Matches Mercury’s black-face gauge family for a consistent factory appearance.

Compatibility

• Fits: Mercury SmartCraft-equipped boats (functionality depends on engine model and installed sensors)

Performance & Practical Benefits

This waste level gauge takes the guesswork out of managing your onboard holding tank. It provides quick, accurate readings so you always know your system’s status before hitting the pump-out station. The black face gives your dash a modern, factory look, while its durable design ensures reliable operation season after season.

Why Buy OEM

Mercury’s OEM gauges are built to handle marine conditions — heat, vibration, salt, and sun. Each unit is tested for long-term reliability and seamless SmartCraft compatibility. Choosing genuine Mercury gear means perfect fit, accurate data, and the same dependable quality found on new Mercury-equipped boats.

FAQ

Q1: What does this gauge measure?
It shows waste or holding tank levels, depending on your boat’s sensors.

Q2: What size dash hole does it fit?
A standard 2-1/8" (52 mm) opening.

Q3: Is it compatible with all Mercury engines?
It’s made for SmartCraft-equipped boats with waste level sensors installed.

Q4: How easy is it to install?
It installs like any Mercury 2-1/8" gauge using standard SmartCraft wiring.

Q5: Is this an OEM part?
Yes — it’s a genuine Mercury Marine gauge, built to factory specifications.