Replacing 6-Way on Truck with 7-Way
Question:
I have a 1970 c10 pickup, it has a 6 round already wired in. Would it be pretty simple to replace that with a 7 blade?
asked by: Phil
Expert Reply:
Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color.
If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and trailer side 7-way trailer connector.
If you can open up the existing 6-way connector on your trailer, take the housing apart and look at the terminals the wires attach to. In many cases, they will be labeled like what is shown in the FAQ article. You can then label each wire, so they are connected to the proper terminal when you install the 7-way. If the terminals are not labeled, you can physically trace each circuit, or you can use a 12 volt battery, attach the trailer ground to the negative post and apply power to each circuit to see which function powers up.
For a 7-way socket with wiring we have the part # HM40975-11998.
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
Continue Researching
- Shop: JR Products High Pressure RV LP Gas Regulator
- Shop: Trailer Wiring
- Search Results: 16 x 16 roof vents
- Shop: Replacement Roller and Fabric Kit for 20' Solera Power/Hybrid Awnings - Sand Fade w/Weatherstrip
- Q&A: How to Tell if Trailer Has 6-Way or 7-Way Installed
- Shop: Ventline E-Z Lift Ventadome Trailer Roof Vent - Manual Lift - 14-1/4" x 14-1/4" - White
- Shop: Van Cargo Mat
- Shop: VanTred Custom Floor Mat for Cargo Vans - Black - Thermoplastic
- Shop: VanTred Custom Floor Mat for Cargo Vans - Black - Thermoplastic
- Q&A: Replacing 6-Way on Trailer With 7-Way Connector
- Q&A: Replacing 6-Pin Trailer Connector For 7-Way Blade Connector
- Shop: Adapter 7-Pole to 6-Pole - Universal
- Shop: Brake Controller
- Video: Curt Gooseneck Installation Kit - Installation Kit - C60631 Review
- Article: Wiring Trailer Lights with a 6-Way Plug (It's Easier Than You Think)
- Q&A: Installing a 7-Way Trailer Connector on a Trailer with 6 Wires
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: Trailer Hitch
- Q&A: Recommended Trailer Brake Controller and Wiring Harness for 1999 Holiday Rambler Endeavor
- Search Results: trailer brake controller
- Shop: RV Antenna and Radio
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: electric brake controller
- Search Results: brake controller kit
- Q&A: Wiring Diagram for a 7-Way Trailer Connector Vehicle End on 2002 Dodge Dakota
- Article: Trailer Wiring Diagrams
- Shop: Vehicle Sway Bars
- Article: How to Install a Brake Controller on Chevrolet / GMC 1999-2006 Pickups
- Q&A: Which Pin On A 7-Way Should Have Constant 12V Power When Vehicle Is Running
- Video: etrailer Class III Trailer Hitch Installation - 2023 Kia Telluride