Piper Cherokee 140, Cherokee 180 Alcor EGT Indicator
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2 1/4" Piper Cherokee 140, Cherokee 180 / Alcor EGT, Exhaust Gas Temperature Indicator. Very clean instrument. No probes with the indicator, just what you see on the photo comes with it. Used on Cessnas, Pipers as well as most other types of aircraft. It was working when removed for panel upgrade.