Mercury – Water Pressure Gauge 0–30 PSI | Cooling System Monitoring | White Face | Brushed Bezel | 79-8M6020067

Overview
This 0–30 PSI water-pressure gauge gives you a steady read on how well the engine is pulling water through the cooling system. The needle moves with a smooth, relaxed swing, so you can catch real changes without chasing jitter. Out on the water, it reacts the way you expect—whether you’re trimming up, running skinny, or pushing through a bit of chop. It’s a simple gauge that quickly works its way into your regular glance around the dash.

Key Features
    • 0–30 PSI Scale – Covers the pressure range most outboards run in.
    • Smooth Needle Movement – Holds steady through bumps, turns, and throttle changes.
    • Standard Dash Fit – Drops neatly into common dash cutouts.
    • Backlit Face – Easy to read in dim light or early starts.
    • Marine-Durable Build – Handles spray, vibration, and long days on the water.

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

Performance & Practical Benefits
On the water, this gauge helps you pick up on cooling-flow issues before they become real problems. The steady sweep makes it easier to notice a drop in pressure when you’re trimmed high, running through weeds, or working around debris. It’s quick to read at idle and just as helpful at cruise. Over time, it becomes one of those quiet checks that keeps the engine safe.

Why Buy OEM
OEM gauges follow Mercury’s pressure-signal behavior closely, which keeps the reading steady instead of drifting. They hold up well to heat, vibration, and weather, giving you long-term consistency. Most boaters stay with OEM because it keeps the information trustworthy season after season.

FAQ
1. How do I know if the water-pressure gauge is failing?
If the needle hangs up, barely moves, or jumps around without reason, it’s likely wearing out.

2. Does this gauge need calibration?
Most of the time it reads correctly right away, as long as the pressure line is routed cleanly.

3. How does it handle saltwater?
A quick rinse after your trip helps it hold up well through saltwater seasons.

4. Anything important during installation?
Make sure the pressure line isn’t kinked so the gauge can respond smoothly.

5. What does low pressure usually look like underway?
The needle drops toward the lower end and stays there, often before alarms kick in.