Wiring New 4-Way Connector on Trailer with 5 Wires
Updated 07/08/2025 | Published 06/18/2015
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Question:
what do color wires go to. i have on boat trailer green,white,yellow, brown with green, and brown with yellow. trying to hook to 4 flat connector
asked by: Tim
Expert Reply:
Going by the colors that you mentioned, it sounds like you have the typical set-up, green wire for right turn and brake, white wire for ground, yellow wire for left turn and brake, brown with green wire for right side running lights, and brown with yellow for left side running lights.
If you are using a standard 4-flat connector like part # 18004, you will more than likely be able to connect color for color for the green, white, and yellow wires. As for the brown with green and the brown with yellow, these will both need to be connected to the brown wire on the new connector.
Please keep in mind that trailer wiring colors can vary so wiring by function really is the best way.
Richaed L.
7/29/2024
thanks for the reply. that is what i assumed but i just needed confirmation
Jeffrey B.
4/20/2025
Have LED lights that has red yellow white green and gray how do I hook that up to a trailer with a 4 pin
Jameson C.
5/5/2025
Jerred H.
7/8/2025
Product Page this Question was Asked From
16 Gauge, 4 Conductor Bonded Parallel Wire - Per Foot
- Wiring
- Wire
- Bonded Wire
- 4 Wire
- 16 Gauge
- Deka
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on Wiring
David R.
1/12/2021
I have a Mazda Miata with the standard 4 pin connector and i Have a small cargo trailer that has 7 wires (2 red, 2 brown, 1 green,1 white and 1 yellow) that I don't understand. What kind of connector or harness do i need to buy from you. Any help is appreciated