Aero-Mach Tachometer 855004-1, 5409-01 30 Day Warranty (0720-471)
P/N 855004-1 and 5409-01. Bench tested working July 2020. Main & Nose Gear. Fuel System. Engine Exhaust. Lycoming Bolt Mag Idler Gear P/N LW 2550.77 NOS (0921-559). GE 4554 & 4594 Bulbs 28V 250W & 28V 100W LOT OF 3 NOS (0621-863).
