Wiring Harness for 2003 Ford F-350 Super Duty with Plug at Spare Tire Location
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.
Products Referenced in This Question
Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug
- Custom Fit Vehicle Wiring
- Fifth Wheel and Gooseneck Wiring
- 10 Feet Long
- Custom Fit
- 7 Round - Blade
- Hopkins
more information >
Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 4 Flat
- CURT
more information >
Product Page this Question was Asked From
Ford Replacement OEM Tow Package Wiring Harness, 7-Way
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 7 Round - Blade
- Tekonsha
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailer Wiring
- Shop: Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug
- Q&A: Bolt Thread Size for Brophy D-Ring Tie Down Anchor # DR01
- Shop: Ford Replacement OEM Tow Package Wiring Harness, 7-Way
- Shop: Brophy D-Ring Tie Down Anchor - Bolt On - 1/2" Diameter - 2,000 lbs
- Shop: Backing Plate for Brophy D-Ring Tie Down Anchor - Black Powder Coat - Qty 1
- Shop: Brophy D-Ring Tie-Down Anchor with Backing Plate - Bolt On - 1/2" Diameter - 2,000 lbs
- Shop: Pollak 5th Wheel / Gooseneck T-Connector with 7-Pole - Ford, GM, Dodge, Nissan w/ Factory Plug
- Search Results: cargo door latch
- Search Results: cargo door locks
- Search Results: friction bar
- Shop: Radiator Fan
- Q&A: Wiring Harness with Square Connector for 2004 Ford F-250 Super Duty
- Shop: Deluxe Compartment Door Thumb Latch - 1-3/8"
- Shop: Vehicle Tow Bar Wiring
- Article: Rooftop Cargo Carriers
- Search Results: yakima
- Shop: Roof Rack
- Article: Brake Controller Installation on a Full-Size Ford Truck or SUV
- Q&A: What Do Each of the Lights on Adapter 7 Pole to 4 Pole with Tester and Cover # 47345 Indicate
- Q&A: How to Disconnect Locking Tabs on OEM Wiring Harness on 2004 Ford F-350 Diesel Crew Cab
- Q&A: Working Running Lights, But No Turn Signals or Brake Lights On Trailer
- Article: Wiring Trailer Lights with a 6-Way Plug (It's Easier Than You Think)
- Q&A: Wiring Diagram for the Adapter 6-Pole to 7-Pole Trailer Wiring Adapter # 47435
- Video: Curt Custom Fit Vehicle Wiring - Fifth Wheel and Gooseneck Wiring - C57010 Review
- Video: Review of TorkLift RV and Camper Steps - 5 Step Truck Camper Fold Up Scissor Steps - TLA7845
- Q&A: Replacement 7-Way for 2002 Ford F-250 With Square Plug
- Article: Adapters for Towing a 5th Wheel Trailer with a Gooseneck Hitch
- Video: Trailer Hitch Installation - 1999 Ford F-350 Super Duty - Curt
- Video: Reese Custom Fit Vehicle Wiring - Trailer Hitch Wiring - 74682 Review