Mercury – Tachometer Gauge 6K | Engine Speed Monitoring | White Face | Black Bezel | 79-8M6020049Mercury Tachometer Gauge 6K Engine Speed Monitoring White Face Black Bezel 79 8M6020049 OverviewThis 6,000 RPM tachometer gives you a clear feel for how the engines running without the needle jumping every time the boat shifts. It settles into a smooth sweep, so you can check your RPMs with a quick glance and keep your focus on the water. Out on a long run, it feels naturalno guessing, no jitter, just a steady read that matches what the engine is