Mercury – Voltage Gauge 12V | 8–16 Volt Range | Black Face | 2-1/8" (52 mm) | 79-8M0052843

Overview

The Mercury Voltage Gauge 12V (79-8M0052843) helps you keep track of your boat’s electrical system at a glance. It reads voltage between 8 and 16 volts, showing exactly what your batteries and charging system are doing in real time. The black face, bright white numerals, and glass lens make it easy to read, and it fits any 2-1/8" (52 mm) dash opening. Built for SmartCraft-capable systems, it’s a dependable, OEM-quality gauge that fits right in with Mercury’s black-face series.

Key Features

• Voltage Range: 8–16V – Monitors your 12V electrical system for accurate, real-time readings.
• Black Face & Glass Lens – Crisp, factory look that matches other Mercury gauges.
• Standard 2-1/8" (52 mm) Fit – Simple drop-in installation for most dashboards.
• SmartCraft-Compatible – Works with Mercury systems depending on available sensors.
• Accurate Monitoring – Helps verify battery charge and alternator output.
• Marine-Grade Durability – UV-resistant, corrosion-proof, and vibration-tested.
• OEM Fit & Finish – Genuine Mercury Marine gauge designed to match factory installations.

Compatibility

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

Performance & Practical Benefits

This voltage gauge lets you monitor your boat’s electrical system instantly — helping you spot issues before they cause trouble. The smooth response and precise readings give you confidence your charging system is working properly. The black face and glass lens tie in perfectly with other Mercury SC1000-style gauges for a clean, professional look.

Why Buy OEM

Mercury gauges are designed for accuracy and built to handle the harshest conditions. Every unit is tested for salt, vibration, and temperature extremes. With genuine OEM parts, you get the reliability, fit, and SmartCraft compatibility that Mercury Marine is known for.

FAQ

Q1: What voltage range does it measure?
It reads 8–16 volts, perfect for standard 12V marine systems.

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

Q3: Does it work with all Mercury engines?
It’s designed for SmartCraft-equipped engines with the correct sensors.

Q4: Can I install it myself?
Yes — it installs like any other Mercury gauge with standard wiring.

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