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Speedway Economy 12 Circuit Wiring Harness

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In this Tech Tip, John answers a customer question about the Speedway 12 Circuit Wiring Harness.

“I’ve got a 1947 Chevy Fleetline Aerosedan that came with a 1982 Olds Cutlass Engine with a 12 volt battery. The starter switch, battery and alternator are all hooked up and functioning but none of the lights or gauges function. Will your Economy 12 Circuit Wiring Harness work for me? I just want to hook up the front lights, brake lights, rear lights to a light switch, and maybe the gauges that work off the 12 volt system. Also will it provide me with the length of wire to go front lights and rear lights? Plus allow me to hook up the lights and gauges? Will your kit provide me with everything I need, including the wires to the lights front and back? Thank you for your time.”

Hi, you inquired about our 12 circuit harness and it would be acceptable for your ‘47 Chevy’s requirements and have enough wire. If in the future you decide to add power windows, locks, cruise, and other accessories and run out of room you can always use inline fuses or another fuse block. On your gauges you will need to make sure they have 12 volt lighting and if the gauges are not mechanical, the oil, fuel, and temp gauges will require voltage reducers such as number 91064101. For the fan motor or radio you will need 91064103 if it is still 12 volt also. Feel free to visit us on the web at or call 1-800-979-0122 with questions or to place an order.

  • John W.

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