Replacement 4-Way and 7-Way for 2004 Ford F-150
Updated 09/29/2025 | Published 05/09/2025
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Question:
I have a 2004 F150 super cab. It has the tow package with a 4pin and a 7pin which both have quit working. What do you have that will replace it. I would like to replace both but would be satisfied with just a working 7pin,
asked by: Denzil N
Expert Reply:
Hey Denzil! I have two possible options for you. If you think it is just your factory connector that's bad you can replace what you have with the 7- and 4-Pole Trailer Connector Socket # HM40975. However, if you want to go this route I would test the wires running into your existing connector and see if they are working. Have you checked the relay/fuses as well? You might not even need a new wiring harness if you find they're bad and swap them out.
If you find that the factory wiring is bad you can bypass it all with the Curt # C59236. Then to upgrade to a 7-way you need the Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat # ETBC7. This will give you a working 4-way and 7-way independent of your factory trailer wiring. If you have any other questions feel free to reply below.
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Product Page this Question was Asked From
7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- No Tow Package
- 4 Flat
- 7 Blade
- Plug Only
- Pollak
more information >
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on Custom Fit Vehicle Wiring
Robin H.
9/29/2025
Hey Denzil, did you have a chance to test the wires and check the relay/fuses for your F150? I'm curious if you found a solution that worked for you, as it could help others facing similar issues with their trailer connectors.