Battery
Voltage: 6
Positive Terminal: Ground connection
Capacity: 80 Amperes per Hour Group 1
Charging Rate: 10 - 12 amps

Harness

1928 Ford Model A Wiring Diagram

1929 - 1931 Ford Model A Wiring Diagram (No Cowl Lights)

1929 - 1931 Ford Model A Wiring Diagram (With Cowl Lights)

Lights
Headlight: 32 – 50 cp. Double Contact Base
Cowl Light: 3 cp. Single Contact: Mazda 63
Parking Light: 3 cp. Single Contact: Mazda 63
Tail Light: 3 cp. Single Contact: Mazda 63
Stop Light: 21 cp. Single Contact: Mazda 1129
Inst. Panel Light: 3 cp. Single Contact: Mazda 63
Dome Light: 3 cp. Single Contact: Mazda 63