Electronic tachometers work by counting pulses generated by the ingition system, alternator, tach signal generator or magnetic pickup sender. The tach is hooked up to +12vDC, Ground and one of hte signal sources listed above.

By selecting the right tach and setting the switch on the back to the correct postion you let the tachometer know how many pulses are sent per each engine revolution.


  • Wide range of scales
  • Available for gas or diesel engines
  • Multiple signal sources
  • Rugged, Reliable construction

Gauge Sizes Available:
4" - Hole size: 3.375" (85mm)
5" - Hole size: 4.375" (112mm)

Parts available
Catalog # Factory # Description
TC97854"Tachometer (6000 RPM) (Gas) (Inboard & I/O)
TC90354"Tachometer (7000 RPM) (All outboard)
TD91274"Tachometer (4000 RPM) (Diesel) (Mechanical takeoff & var ratio alt)
TD91284"Tachometer (4000 RPM) (Diesel) (Mechanical takeoff & var ratio alt)
TC97964"Tachometer (6000 RPM) (Gas) (Inboard & I/O)
TC90024"Tachometer (7000 RPM) (All outboard)
TD97334"Tachometer (4000 RPM) (Diesel) (Mag Pick-Up)
TC94934"Tachometer (6000 RPM) (Gas) (Inboard & I/O)
TC90364"Tachometer (7000 RPM) (All outboard)
TC96914"Tachometer (6000 RPM) (Gas) (Inboard & I/O)
TC90384"Tachometer (7000 RPM) (All outboard)
TC96434"Tachometer (6000 RPM) (Gas) (Inboard & I/O)
TC90114"Tachometer (7000 RPM) (All outboard)
TD91224"Tachometer (4000 RPM) (Diesel) (Mechanical takeoff & var ratio alt)
TD96714"Tachometer (4000 RPM) (Diesel) (Mag Pick-Up)
TC96794"Tachometer (6000 RPM) (Gas) (Inboard & I/O)
TC90034"Tachometer (7000 RPM) (All outboard)
TD91234"Tachometer (4000 RPM) (Diesel) (Mechanical takeoff & var ratio alt)
TC99834"Tachometer (6000 RPM) (Gas) (Inboard & I/O)
TC95164"Tachometer (6000 RPM) (Gas) (Inboard)
TC95184"Tachometer (7000 RPM) (Gas) (Outboard)
TC85114"Tachometer (7000 RPM) (Gas) (Inboard, Outboards & I/O)
TC99334"Tachometer (6000 RPM) (Gas) (Inboard & I/O)
TC90264"Tachometer (7000 RPM) (All outboard)
TC94764"Tachometer (6000 RPM) (Gas) (Inboard & I/O)
TC90044"Tachometer (7000 RPM) (All outboard)