Mercury – Oil Pressure Gauge L–H | Engine Protection Monitoring | Black Face | Brushed Bezel | 79-8M6020048

Overview
This L–H oil-pressure gauge gives you a simple, steady read on how the engine’s lubrication system is holding up while you’re running. The needle moves in a calm, predictable sweep, so changes stand out without you hovering over the panel. Out on the water, it reacts the way you’d expect—idling, cruising, or pushing into some chop. It’s the kind of gauge that quietly helps you stay ahead of engine issues.

Key Features
    • L–H Pressure Scale – Shows overall oil-pressure range in a clear, easy layout.
    • Smooth Needle Action – Holds a steady reading through bumps and throttle changes.
    • Standard Dash Fit – Drops cleanly into common dash cutouts.
    • Backlit Face – Stays readable during early mornings or dusk runs.
    • Marine-Durable Build – Handles vibration, spray, 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 catch pressure dips or odd spikes before they turn into something bigger. The steady sweep makes it easy to check while cruising or idling out of a marina. You don’t need to study it—one glance gives you a feel for how the engine’s holding up. It’s a small detail that adds some peace of mind to every outing.

Why Buy OEM
OEM gauges follow Mercury’s sensor signals closely, which keeps the reading honest. They hold up better to vibration, heat, and weather than cheaper look-alikes. Most boaters stick with OEM because it avoids electrical quirks and keeps things reliable.

FAQ
1. How do I know if the oil-pressure gauge is starting to fail?
If the needle sticks, jumps, or doesn’t respond to throttle changes, it’s probably wearing out.

2. Does this gauge need calibration?
Most setups read correctly right away, but checking wiring and the sender connection during install is smart.

3. How does it do in saltwater?
A quick rinse after your trip keeps it in good shape through full saltwater seasons.

4. Anything to watch during installation?
A clean ground and tidy wiring help the needle stay smooth and accurate.

5. What does low pressure usually look like on the gauge?
The needle drops toward the low end and stays there, especially under load.