Mercury – Tachometer Gauge 6K | Engine Monitoring | Black Face | Black Bezel | 79-8M6020025Mercury Tachometer Gauge 6K Engine Monitoring Black Face Black Bezel 79 8M6020025 OverviewThis 6,000 RPM tachometer gives you a steady, honest read on engine speed without feeling fussy or overdone. It reacts the way you expect when you roll into the throttle or hit a bit of chopnothing jumpy or unpredictable. After a few minutes behind the wheel, it starts to feel like one of those gauges you dont think about much because it just behaves. Its a