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Connecting Harley Davidson 5 wire Harness to a 4 Flat Connector on a Trailer  

Question:

I am trying to connect my 5 wire Harley wiring harness to my trailer that uses a 4 flat set up. The harness on the bike has a plug and play harness with direct connect to battery power and ground. Thank you in advance

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Expert Reply:

I would recommend you cut off the 5-way on your motorcycle. Wire in a tail light converter kit part # HM48895. This will convert your separate circuit tail light signal of your motorcycle to a combined circuit like what your trailer has.

On Harleys the turn signal wire circuit is separate from the brake light circuit so a converter like the # HM48895 is needed to convert the signal into a combined circuit like what your trailer has.

You will need a circuit tester like our part # PTW2993 to determine the functions of the connector on your motorcycle and then need to wire it by function to the circuits of the # HM48995.

I attached an FAQ on trailer wiring for you to check out also.

expert reply by:
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Jameson C

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