Wiring Harness for 2003 Ford F-350 Super Duty with Plug at Spare Tire Location
Updated 04/18/2019 | Published 04/17/2019
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Question:
2003 F-350 super duty. Truck has no 7 or 4 way plug on back. Must never have had it installed as an option. There is however a harness plug that’s up under by spare tire. It is open and available. I assume this is meant to have something plugged into it. I see one on here that looks like it would fit, but it says it’s not a fit for 2003 even though the harness looks to match the end I need. The 2003 doesn’t have the big fuse box under hood like my 99 did so maybe that’s why? Since the kit comes with two relays and 2 fuses. Not sure if I’d need those. I just want to be able to plug in my camperbwitjout having to splice or cut anything. Please help!
asked by: Mark
Helpful Expert Reply:
The plug you have by your spare tire is the correct wiring harness for you to add a 4-way like # C55265. Your truck shouldn't require any any extra fuses or relays. For a 7-way you should be able to use the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug # 40167 which would also allow you to add that before mentioned 4-way as well.
The Ford Replacement OEM Tow Package Wiring Harness, 7-Way # 118242 you asked from was only for light duty trucks but it does have the same connector.
Product Page this Question was Asked From
Ford Replacement OEM Tow Package Wiring Harness, 7-Way
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- Factory Tow Package
- 7 Blade
- Plug and Lead
- Plug-In
- Visible
- Tekonsha
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