Mercury – Transmission Oil Temperature Gauge | 120–300°F | Black Face | 2-1/8" (52 mm) | 79-8M6002607

Overview

The Mercury Transmission Oil Temperature Gauge (79-8M6002607) helps you keep a close eye on your transmission’s operating temperature — a must for long-term reliability and performance. It reads from 120° to 300°F, giving you accurate, real-time data so you’ll know if your system is running within safe limits. With a black face, bright white numerals, and a glass lens, it’s easy to read in any light and matches the rest of Mercury’s OEM gauge lineup. It fits a standard 2-1/8" (52 mm) dash opening and connects to SmartCraft-capable systems when compatible sensors are installed.

Key Features

• Temperature Range: 120–300°F – Ideal for monitoring transmission oil temperature.
• Black Face & Glass Lens – High-contrast, glare-free design with OEM Mercury styling.
• Standard 2-1/8" (52 mm) Dash Fit – Simple drop-in installation for most dash layouts.
• SmartCraft-Compatible – Works with Mercury systems that include transmission temperature sensors.
• Accurate Readings – Provides live data to help prevent overheating and damage.
• Marine-Grade Build – UV-stable, vibration-tested, and corrosion-resistant for long service life.
• OEM Fit & Finish – Matches Mercury black-face gauges for a uniform, professional appearance.

Compatibility

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

Performance & Practical Benefits

Monitoring transmission temperature is key to protecting your drivetrain, especially under load or in hot conditions. This gauge gives you fast, accurate feedback so you can catch issues before they become problems. The black face adds a polished, factory look to your dash while delivering dependable readings trip after trip.

Why Buy OEM

Mercury Marine’s OEM gauges are built for the same demanding environments as their engines. Each one is tested for vibration, saltwater exposure, and heat resistance to ensure reliability. Choosing OEM means perfect fit, precise data, and long-term peace of mind on the water.

FAQ

Q1: What temperature range does it display?
It measures 120° to 300°F.

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

Q3: Does it work with all Mercury engines?
It’s designed for SmartCraft-capable systems with transmission temperature sensors.

Q4: Is installation simple?
Yes — it installs like any other 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 standards.