Mercury – Tachometer 6K | Engine Speed Monitoring | White Face | Brushed Bezel | 79-8M6020061Mercury Tachometer 6K Engine Speed Monitoring White Face Brushed Bezel 79 8M6020061 OverviewThis 6,000 RPM tachometer gives you a straightforward read on engine speed without jitter or bounce when the boat moves around. The needle settles into a smooth arc, making it easy to check your RPMs with a quick glance. Out on the water, it feels naturalwhat you see on the gauge matches what you hear from the engine. Its a simple, dependable piece of gear that