1954 GMC Conventional Series 620-36 Through 630-50 Wiring Diagram

This is the wiring diagram of the 1954 GMC cars, especially the early gasoline models, the conventional series 620-36 through 630-50. On this wiring diagram, the standard equipment circuits are shown in solid lines, and special equipment circuits are shown in broken lines. The components shown here are like: headlamp, junction block, park lamp, battery, horns, spark plugs, ammeter, low air buzzer, low air switch, and many others. There is also information on harnesses shown on the right side of the wiring diagram. (Click image to enlarge)

 Wiring Diagram Of 1954 GMC Conventional Series 620-36 Through 630-50