Trailer Wiring For My 1999 Ford F-350 Super Duty With OEM Factory Tow Package And My 5th Wheel

Published 10/07/2021

Products Featured in This Question

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector

(165)

$51.40

7-Way RV Upgrade Kit for Trailer Brake Controller Installation - 12 Gauge Wires

(353)

$95.69

Question:

I have a 99 ford F350 Super Duty Lariat Im wanting to replace the 7 way plug a 4 flat combo thats on the rear bumper that will plug directly into my factor wiring harness. I also want to replace my 5th wheel plug thats in the bed of my truck so that it to will plug into my factory wiring. One of the options I see for the bumper comes with relays an fuses my truck already has this installed. the fifth wheel plug will need to be a 90degree angle plug. What two wiring kits will I need to accomplish this task. Im wanting to get rid of spliced wire connections.

asked by: Daniel P

Expert Reply:

The first thing you will need is the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector, part # C55243. This will plug directly into your OEM tow package port. Once that is in place you will need the 7-Way RV Upgrade Kit for Trailer Brake Controller Installation - 12 Gauge Wires, part # ETBC7L, this is what will add the 4-way and 7-way connection to your 1999 Ford F-350 Super Duty.

In addition, I found a 5th wheel/gooseneck 90 degree wiring harness. The Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug, part # HM40157, is a plug and play harness, no splicing or cutting necessary.

I have included a product description link and two video demo links below.

expert reply by: Mark Smith