Diagram for 7-Way and 4-Way Trailer Wiring Connectors
Question:
What is the wiring diagram for Rv to car 7 to 4 round
asked by: Donald Y
Expert Reply:
There is not an industry standard layout for wiring the 4-Way round pin connector, but there is a layout that is most accepted.
If you you are looking at the front side of the 4-Way round trailer side plug, the top left prong would be used for right hand turn signal and brake function, the top right pin would be the left side turn signal and brake light function, while the bottom left would be used for the tail light function. The last pin, on the bottom right would be used for the ground wire. See the picture to the right for more clarification.
I attached a picture of how a 7-way is wired up as well.
Products Referenced in This Question
Pollak Heavy-Duty, 4-Pole, Round Pin Socket, Concealed Terminals - Chrome - Vehicle End
- Trailer Wiring
- Trailer Connectors
- Vehicle End Connector
- Plug Only
- 4 Round
- Pollak
more information >
Product Page this Question was Asked From
etrailer Rubber Hitch Cover for 2" Trailer Hitches - Qty 1
- Hitch Covers
- Misc Covers
- Plain
- Rubber
- Fits 2 Inch Hitch
- Standard
- Square
- etrailer
more information >
Continue Researching
- Shop: 2-Pole Socket Connector - Vehicle Side
- Shop: Pollak Heavy-Duty, 4-Pole, Round Pin Socket, Concealed Terminals - Chrome - Vehicle End
- Video: Pollak Wiring - Trailer Connectors - PK12800 Review
- Video: Pollak Wiring - Trailer Connectors - PK12801 Review
- Shop: 2-Pole Trailer Wiring Connector - Trailer Side
- Article: 30-Amp and 50-Amp RV Service: What's the Difference?
- Q&A: Wiring Diagram Recommendation for 4-Way Round Trailer Connector
- Shop: Trailer Wiring
- Q&A: What Gauge Wire Is Required On a 7-Way Connector
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector - Chrome - Trailer End
- Video: Pollak Wiring - Trailer Connectors - PK11410 Review
- Shop: Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector - Metal - Trailer End
- Q&A: How to Charge a Trailer Battery Through a 7-Way Connector
- Q&A: Is There A Storage Container Option That Will Go Under The Lippert SolidSteps?
- Shop: Vehicle Tow Bar Wiring
- Shop: RV Covers
- Shop: Vehicle Tow Bar Brake System
- Shop: Brake Buddy Classic 3 Portable Flat Tow Brake System - Preset
- Shop: Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Wire to 6-Wire Straight Cord
- Shop: Base Plate for Tow Bar
- Search Results: trailer connector
- Search Results: plugs
- Search Results: 4 pin round
- Search Results: blue ox adapters
- Video: Roadmaster Base Plates RM-031 Review
- Video: Choosing the Right Trailer Wiring
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: trailer hitch