Why Won't 7-Way Connector on Trailer Fit Factory 7-Way on My New GM Truck
Question:
Hello etrailer. I just got my hands on this 7-way from another source. Installed it on the trailer, everything went fine. But when I go to plug it into the 7-Way on my truck it doesn't seem to fit. And when I test the circuits I'm not getting consistent power. What am I doing wrong?
asked by: Dan D
Expert Reply:
This is an interesting (frustrating) issue we've recently discovered with a lot of the new GM trucks, specific to the Bargman 7-Way # 54006-059 you mentioned. I can at least assure you that you're not doing anything wrong.
The problem is with the "fins" present on the factory 7-Way for these new models, which prevents the Bargman 7-Way from properly seating into the connector. There isn't really a fix for this beyond either replacing the factory 7-Way on the truck or getting a different connector for the trailer, unfortunately.
Since you just installed the trailer side, the simplest solution is probably to just replace the truck's 7-Way with the Hopkins # HM40975. This will be an easy, plug-and-play installation. If you wanted to replace the trailer side instead, the Pollak # PK12706 will be the best option and is actually what GM suggests because Pollak is who manufacturers the factory 7-Way on their trucks.
I've attached a couple install videos that you can check out as well.
Products Referenced in This Question
7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 7 Round - Blade
- 4 Flat
- Hopkins
more information >
Pollak Black Plastic, 7-Pole, RV-Style Trailer Connector - Trailer End
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- Plug Only
- 7 Round - Blade
- Pollak
more information >
Product Page this Question was Asked From
Bargman 7-Way, RV-Style Connector w/ 10' Heavy Duty Insulated Cable - Trailer End
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 6 - 10 Feet Long
- Plug and Lead
- 7 Round - Blade
- Bargman
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailer Wiring
- Shop: 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole Plug - GM, Ford, Ram, Toyota - 9' Long
- Q&A: Trailer Wiring Harness for Snowmobile Trailer
- Q&A: 7-Way RV Trailer Connector Wiring Diagram
- Article: Trailer Wiring Diagrams
- Shop: Bargman 7-Way, RV-Style Connector w/ 8' Heavy Duty Insulated Cable - Trailer End
- Shop: 7-Way Molded Connector w/ 18' Cable - Trailer End
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Shop: Pollak Replacement 7-Pole, RV-Style Trailer Connector Socket - Vehicle End
- Shop: Curt Replacement OEM USCAR Trailer Connector - Dual Connection - 7-Way RV Style and 4-Way Flat
- Video: Review of CURT Trailer Wiring - Trailer Connectors - C42JR
- Video: Pollak Replacement 7-Pole RV-Style Trailer Connector Socket Review
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Video: Choosing the Right Trailer Wiring
- Shop: Trailer Hitch
- Search Results: brake controller
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Search Results: 25580
- Shop: Brake Controller
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Video: Choosing the Right Brake Controller
- Article: How to Choose the Right Trailer Hitch Class
- Search Results: trailer brake controller
- Q&A: What Is An OEM Prep Package And How Do I Know If I Have It
- Search Results: 90160
- Q&A: 7-Way Trailer Plug Adapter or Compatibility with Lance Slide-In Truck Bed Camper
- Article: Most Popular Wheel Bearings
- Video: Curt 4-Pole Flat Trailer Connector Mounting Bracket Review
- Q&A: My Vehicle has a 4-Pin Trailer Plug, but Trailer has 7-Pin Trailer Plug
on Trailer Wiring
