Mercury – Voltage Gauge 12V | 8–16 Volt Range | White Face | 2-1/8" (52 mm) | 79-8M0052864

Overview

The Mercury Voltage Gauge 12V (79-8M0052864) helps you keep a close eye on your boat’s electrical system. Designed to display voltage from 8 to 16 volts, this gauge provides quick, accurate feedback on your battery and charging system performance. The white face, black markings, and glass lens match perfectly with other Mercury gauges, giving your dash a clean, coordinated look. It fits any 2-1/8" (52 mm) standard gauge opening and works with most SmartCraft-capable systems depending on engine sensors.

Key Features

• Voltage Range: 8–16 Volts – Displays system voltage to monitor battery and alternator health.
• White Face with Glass Lens – Bright, classic look that matches Mercury’s OEM gauge style.
• Standard 2-1/8" (52 mm) Fit – Simple drop-in design for easy install or replacement.
• Accurate Readings – Provides real-time voltage feedback for 12V systems.
• Engine-Dependent Functionality – Operates based on available SmartCraft sensors and system setup.
• Marine-Grade Durability – UV-stable and corrosion-resistant for long life in salt and sun.
• OEM Fit and Finish – Genuine Mercury gauge for seamless integration with factory panels.

Compatibility

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

Performance & Practical Benefits

This Mercury voltage gauge helps prevent battery surprises out on the water. It gives you instant visual confirmation that your electrical system is charging properly and that your batteries are holding the right voltage. Easy to install and easy to read, it’s a smart addition to any dash or a direct replacement for aging gauges.

Why Buy OEM

Mercury gauges are built for accuracy, fit, and reliability. Each unit is tested to handle vibration, heat, and salt exposure without fading or failing. With genuine OEM equipment, you can count on dependable readings and a clean factory finish that matches the rest of your dash.

FAQ

Q1: What voltage range does this gauge read?
It measures between 8 and 16 volts for 12V systems.

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

Q3: Is this gauge SmartCraft compatible?
Yes — it’s designed for SmartCraft-capable systems, though function depends on available sensors.

Q4: Does it work with all Mercury engines?
It works with SmartCraft-equipped engines; compatibility depends on your model and wiring setup.

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