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Can Trailer Taillight Run Ground Wire Directly to Aluminum Trailer Frame

Question:

I have an aluminum trailer and need to replace the harness end that plugs into my truck. Can the ground wire just be attached right onto the aluminum trailer ?

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Expert Reply:

Aluminum doesn't conduct electricity well enough to run ground wires directly to it like with the taillight part # 30-92-001 that you referenced. You'd want to run a jumper wire from the assembly to the main ground wire of the trailer to ensure the ground is sufficient.

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Jameson C

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