New Garmin GI 275 Brings Engine Monitoring Tech to Vintage Aircraft

Expanded compatibility adds 7-cylinder radial engines found in classic Cessna, Beech, WACO, and Howard models.

Meg Godlewski

Wednesday, June 18, 2025 at 05:00 PM ET

Verified

Edited By:

Ryan Ewing

Garmin's GI 275 [Courtesy: Garmin]

Key Takeaways:

Garmin has expanded its GI 275 Engine Indication System (EIS) to support certain 7-cylinder engines, making modern technology accessible for popular vintage aircraft.
The GI 275 EIS serves as an all-in-one primary display, providing comprehensive engine data monitoring including fuel, electrical, oil pressure and temperature, CHT, and EGT.
This compact system features a touchscreen, real-time data streaming to the Garmin Pilot App, and data upload capabilities for review, aiding pilots in proactively monitoring engine health and preventing potential issues.

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Flying an older airplane doesn’t mean you can’t take advantage of the newest technology. This week, Garmin announced that the GI 275 engine indication system (EIS) is now able to interface and display information of certain 7-cylinder engines that are commonly used in popular vintage designs.

According to Garmin, 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.