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Parts Needed to Add 4-Way and 7-Way to 2013 Ford E350  

Updated 02/24/2025 | Published 02/16/2025

Question:

I need a 7 pin and 4/5 pin trailer wiring harness for a 2013 Ford E350 without factor tow wiring. I’d prefer plug in connectors. What harness do you recommend? Thank you.

0

Expert Reply:

Hey Tester, what you'd need is the Curt 4-way part # C56020 and then convert it to a 7-way with the part # 37185 which has a 4-way on the side of it. Does your trailer have brakes?

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Jameson C
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Test

2/23/2025

Yes, has brakes.

Jameson C. profile picture
Etrailer Expert

Jameson C.

2/24/2025

@Test Okay, so instead of the 37185 you'd want the part # ETBC7 for a 7-way adapter as this comes with parts needed to install a brake controller as well like the P2 part # 90885.
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