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Best Way to Ground Lights on Aluminum Trailer


What would be the best way to ground new rear trailer lights to aluminum trailer. thinking about putting all new wire from front to back. Just a small utility trailer with 4 way connection in front. Also would like to switch to led. Does switching to leds mean i have to switch running lights to led also? Thank you for your answer.


Expert Reply:

The best way to handle the grounds for lights on an aluminum trailer is to mount a junction box like # 38656. You can then run ground jumpers from all lights back to the junction box and also connect the 4-pole such as # W787268.

The box provide both a handy connection point for all the wiring and it protects those connections. You'll use ring terminals like # DW05702-1 for all connections in the junction box and butt connectors like # DW05744-10 to make any needed splices to the lights' wiring. If you need any bulk 4-pole wire you can use # 16-4B-1 sold by the foot.

It is generally best to change all lights over to LEDs since using a combination of LED and incandescent lights will mean different levels of brightness since LEDs are super-efficient and need only a fraction of the power needed by standard bulbs.

You may care to refer to the linked article on trailer wiring.

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