Yamaha - Pro Series Tachometer for Four-Stroke Engines | 6Y5-83540-20-00 Suzuki-DF25-2004 Fits Mercury and Mariner 135–350

Fits Mercury and Mariner 135–350 HP TwoStroke and FourStroke outboards (1978 and newer

or gear wear

Universal mount switches have longer stud lengths for improved assembly and easier cable routing

Dual engines require purchase of a tie bar kit and extra hardware

keeping internal components protected whether you’re cruising steady or hammering across rough water

Yamaha - Pro Series Tachometer for Four-Stroke Engines | 6Y5-83540-20-00 Suzuki-DF25-2004 Fits Mercury and Mariner 135–350Yamaha Pro Series Tachometer for Four Stroke Engines 6Y5 83540 20 00 The Yamaha Pro Series Tachometer for Four Stroke Engines 6Y5 83540 20 00 is part of Yamaha's Pro Series instrumentation, built around accurate readings and good visibility in changing light. Direct faceplate illumination helps the gauge stay readable during evening runs or low light operation. This Pro Series tachometer displays engine RPM for supported Yamaha applications. Use the