Recommended 7-way Connector To Bypass Current Trailer Wiring harness On 1990 Ford F-250
Question:
I have an existing harness that was wired for a gooseneck stock trailer. This harness has issues. I want to abandon that harness, and replace it with a new harness that will reach the bumper of the pickup. Many of the harnesses listed are 7, and I know they wont reach the bumper. Many of the harnesses plug in to an existing wiring harness. I want a new harness that runs from the battery, to the bumper. I am not sure which one would suit me best. Can you help me pick one out that will run from the battery to the bumper? Thank you
asked by: David D
Expert Reply:
It sounds like you are wanting a new 7-way connector on your 1990 Ford F-250 that bypasses all of your current wiring.
To do that I recommend starting with the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118316 which is confirmed to fit your 1990 Ford F-250 and will give you all of the lighting functions needed for your trailer.
Now for a 7-way connector you will need the # ETBC7 which will plug into your new 4-way connector and just require a few more connections. The black wire will get run to the battery of your truck with the included 40 amp circuit breaker, the white wire will get grounded to the frame of your truck, and the blue wire will get run to the brake output wire on your trailer brake controller.
This will give you a fully functional 7-way/4-way connector combination for towing a trailer that bypasses all of your current trailer wiring harness.
Lastly to mount this connector to your vehicle you will want to use the no drill mounting bracket # 18140 which will bolt to your trailer hitch receiver.
I included videos of the products mentioned for you to take a look at.
Products Referenced in This Question
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 4 Flat
- Tekonsha
more information >
No-Drill Mount for Electrical Mounting Bracket - Short
- Accessories and Parts
- Trailer Wiring
- Mounting Hardware
- Brackets
- 4 Flat
- 5 Flat
- 4 Round
- 5 Round
- Tow Ready
more information >
Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Accessories and Parts
- Trailer Brake Controller
- Installation Kits
- etrailer
more information >
Product Page this Question was Asked From
7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring - Vehicle End
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 4 Flat
- 7 Round - Blade
- Hopkins
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailer Hitch
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Video: Curt T-Connector Vehicle Wiring Harness Installation - 2023 Nissan Rogue
- Video: Curt Class III Trailer Hitch Installation - 2023 Nissan Rogue
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Shop: Trailer Wiring
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Draw-Tite Max-Frame Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Shop: Malone Anti-Rattle HitchLock System
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Search Results: harness
- Q&A: Can Trailer Wiring Harness Power Wire be Connected to Running Light Wire Instead of Battery
- Shop: Brake Controller
- Video: Tow Ready Wiring - Wiring Adapters - 20142 Review
- Search Results: 20142
- Q&A: How to Allow 12 Volt Accessory Circuit of 7-Way to Only Come On When Key is On
- Q&A: How to Bypass 12 Volt Wiring of Ford F-150 for 7-Way Trailer Wiring Circuit
- Q&A: Can I Charge My Trailer Battery Using 7-Way Trailer Connector on Truck
- Q&A: Are Load Resistors Required when Adding LED Lights to a Trailer
- Q&A: Will Lock N Roll Articulating Coupler # 336TS504 Fit 2018 NuCamp Tag Boondock Edition
- Search Results: redarc
- Video: Choosing the Right Trailer Wiring
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Search Results: 44649
- Video: Tow Ready 4-Pole Mounting Bracket Installation
- Search Results: 68149
- Article: How to Choose the Right Trailer Hitch Class
- Article: Trailer Wiring Diagrams
on Custom Fit Vehicle Wiring
