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Option for Connecting Magnetic Tow Lights with 4-Way Round to 4-Way Flat  


I have a set of magnetic trailer lights that I want to use to swap around boat trailers. The magnetic lights have a 4 pin round connectorfemale, but my truck only accepts a 4 pin flat male and I think a 7 pin round male. These exact lights in question: 337TL257M Is there an adapter with a 4 pin round male to 4 pin flat male?


Expert Reply:

Since there's only one type of adapter that would work for your situation and it's probably not totally ideal it's most likely your best option to replace the 4-way round of the light kit with a 4-way flat like with the part # HM38134.

The only adapter option is something like the # RM-98164-7 which is longer than you'd need and probably more money that you'd want to spend.

Using the # HM38134 to replace the 4-way round will be the easiest and best option. The 4-way round connector is not very common so converting it to a 4-way flat will make the kit much easier to use for your current vehicle as well as future vehicles.

For butt connectors then you'd want the part # DW05744-10 for a set of 10.

expert reply by:
Jameson C

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