7-Way Trailer Wiring Setup Recommendation for a Tandem Axle Trailer
Question:
Can l use a 4 wireHannes for a 2 axel traler
asked by: Frank
Expert Reply:
A 4-way trailer wiring harness wouldn't carry a brake signal so it wouldn't matter how many axles you would have on a trailer that has a 4-way.
A better option would be a 7-way as that style of harness does carry the brake signal.
Starting with a trailer side 7-Way connector you can use # H20042 which is 3 feet long. It doesn't have to be long though because it is going to the junction box. Speaking of junction boxes you can use # 38656. I have included a picture showing how it can be wired up and a video showing installation to the right.
For the rest of the wiring you can use # DW04914-1 which is sold by the foot. So if you needed 20 feet you would enter 20 into the quantity box. And for ring terminals you can use # 44-5310A. You also might be interested in wire frame clip # 464600 or loom clamp # A0250 to support the new wiring.
Products Referenced in This Question
Ring Terminal - 12-10 Gauge Wire - 3/16" Ring ID
- Wiring
- Wire Connectors
- Ring Terminals
- 3/16 Inch Diameter
- 12-10 Gauge
- Flint Hill Goods
more information >
- Electrical Tools
- Cable Management
- Wire Clips and Clamps
- 1/4 Inch Diameter
- Black
- Redline
more information >
7-Way Molded Trailer Wire Connector - 3' Long
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 0 - 5 Feet Long
- Plug and Lead
- 7 Round - Blade
- Hopkins
more information >
Product Page this Question was Asked From
35 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 42" Ground
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 31 Feet and Longer
- Plug and Lead
- 4 Flat
- Optronics
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Q&A: Will a Leveling Kit on a 2016 Ford F-150 Affect the RoadActive Suspension Kit?
- Video: Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit Installation - 2018 Ford F-150
- Q&A: Can The RAS And SumoSprings Be Installed At The Same Time?
- Shop: Trailer Wiring Junction Box
- Shop: Suspension Enhancement
- Shop: Anderson to MC4 Cable for Redarc Solar Panels - 5' Long
- Shop: 60-Amp Relay Kit for Redarc In-Vehicle BCDC Battery Charger
- Shop: Epicord Battery Disconnect Switch with Key - 50 Amp
- Shop: RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty
- Shop: Hellwig EZ-990 Helper Springs - Above Axle
- Video: Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit Installation - 2021 Ford F-150
- Shop: 2-Wire Trailer Adapter for Go Power Portable Solar Kits
- Article: Trailer Wiring Diagrams
- Search Results: 7 pin trailer wiring harness
- Search Results: 12x2 brake drums 7000 dexter
- Q&A: How to Determine if my Trailer Has Electric or Hydraulic Brakes
- Q&A: Replacement 12 Inch Brake Assemblies Compatible with Old Warner Trailer Hub/Drums
- Q&A: Recommended Brake Assembly 12x2 with 4 Bolt Mounting Pattern
- Video: Dexter Electric Brake Assembly Review
- Shop: Trailer Hitch
- Search Results: 30 amp transfer switch
- Q&A: How to Wire Electric Brakes on a Tandem Axle Trailer
- Q&A: Where to Find Brake Controller Fuse and Relay for 2008 Chevy Silverado
- Search Results: 23585 r16
- Search Results: 235 85r16 load range g
- Search Results: 235 85 16 trailer tire
- Search Results: rv transfer switch
- Shop: Vehicle Tow Bar Wiring
- Video: Spectro Trailer Wiring Junction Box Installation
- Shop: Trailer Wiring
on Trailer Wiring
