Mercury – Water Temperature Gauge C–H (60–200°F) | Cooling System Monitoring | Black Face | Brushed Bezel | 79-8M6020047

Overview
This 60–200°F water-temperature gauge gives you a clean, steady look at how warm the engine’s running. The needle moves in a slow, predictable sweep instead of jumping around when the boat rocks, so small changes are easy to spot. Out on the water, it becomes a quick habit—glance down, get the info, and keep going. It’s simple, reliable, and fits right into a normal day on the boat.

Key Features
    • 60–200°F Scale – Shows the temperature range most engines run in.
    • Smooth Needle Movement – Holds steady through chop and throttle changes.
    • Standard Dash Fit – Drops easily into common dash openings.
    • Backlit Display – Clear and readable when the light drops off.
    • Marine-Durable Build – Handles vibration, spray, and heat.

Engine & Boat Compatibility
    • FourStroke outboards
    • Verado series
    • Pro XS engines
    • SmartCraft systems

Performance & Practical Benefits
On the water, this gauge helps you spot warming trends early, especially when you’re trimming high or running through weeds. Because the sweep is calm, real changes stand out right away. It’s easy to check mid-cruise without breaking your flow. Over time, it becomes one of those simple checks that keeps the engine running comfortably.

Why Buy OEM
OEM gauges read Mercury’s sender signal the way it’s meant to be read, which keeps the temperature honest. They hold up better to vibration, heat, and weather than bargain replacements. Most boaters stay with OEM because it keeps them from guessing.

FAQ
1. How do I know if the gauge is going bad?
If the needle sticks, barely moves, or spikes for no clear reason, it’s likely failing.

2. Does this gauge need calibration?
Usually it reads correctly right away, but checking the sender during install is always smart.

3. How does it handle saltwater?
A rinse after each run helps it last through heavy saltwater use.

4. Anything to double-check during installation?
Clean grounds and snug wiring keep the sweep smooth and accurate.

5. What does overheating look like on this gauge?
The needle creeps toward the top of the scale and doesn’t settle back down under load.