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Garmin Announces GI 275 EIS Update

Garmin is pleased to announce the GI 275 engine indication system (EIS) can now interface with and display information for select 7-cylinder radial engine applications with software update v3.40. This new update will allow vintage aircraft owners to better monitor and manage their engine. The GI 275 EIS serves as an all-in-one primary EIS display, providing comprehensive indications including fuel and electrical data, oil pressure and temperature, cylinder head temperature (CHT) and exhaust gas temperature (EGT) monitoring and more.


Lightweight and compact, the GI 275 EIS is a reliable, modern and feature-packed engine indication solution intentionally designed to take advantage of the common 3.125-inch flight instrument size, reducing installation time and preserving the existing aircraft panel. The GI 275 EIS for 7-cylinder engines makes monitoring and managing the engine easier. A bar graph on the Main EIS Page displays and provides clear readouts of CHT and EGT for all seven cylinders.

The GI 275 EIS for 7-cylinder engines is available now for select aircraft including Continental W-670, Wright R-760, Jacobs R-755, Jacobs R-915 installations on the following aircraft:

  • Cessna 190, 195
  • WACO YMF
  • Beech Model 18A, S18A, 18D, S18D, A18A, SA18A, A18D, SA18D
  • HOWARD DGA-15J, DGA-15W