The 1A3 tachometer sending unit is designed to screw into the engine's mechancial tachometer port (Lycoming/Continental style). Included is a 0.156 diameter tang along with a six-foot harness. Franklin engines...
155 Series - Heavy-Duty Bayonet Knob In-Line Fuseholder for 3AG/3AB and SFE Fuses
Contact, 22D Crimp Socket; included in the 455-0027 install kit for the NVIS 453-0027.
9 pin receptacle housing. Included in the 455-6196 NAV remote switch install kit for the 455-5063 C406-N ELT kit.