A-26A416-AI Primary Wire, 100', 16 Ga. (RED)One New Aftermarket Replacement Primary Wire 16 Gauge, Red, 100 Foot Spool This 16 AWG (American Wire Gauge) red GPT primary wire is a general purpose, single conductor automotive grade wire supplied on a 100 foot spool. It is suited for low voltage wiring and repair work on tractors, trucks, trailers, agricultural equipment, construction machinery, and other motor driven vehicles and implements. The red color coding aids in quick circuit