How To Wire a 5th Wheel for Triple Towing a Trailer with Brakes
Updated 04/30/2019 | Published 04/27/2019
Products Featured in This Question
Question:
I have a fifth wheel and would like to double tow a small utility trailer behind. My small utility has trailer brakes. What parts would I need?
asked by: Brian
Expert Reply:
It is possible to triple tow (1 tow vehicle + 2 trailers) when both trailer's have brakes but this would mean that the brake output wire that runs from the brake controller in the tow vehicle to both trailers would need to be at least a 6 gauge at the minimum so you don't have issues with voltage drop. Also, the number of braked axles cannot exceed what your brake controller is capable of handing which most are usually four. In order to obtain the needed length of 6 gauge or greater wire you can visit your local car audio stores.
I assume you have the tow vehicle setup properly to tow the 5th heel trailer but if not just let me know. In order to set the 5th wheel trailer up for towing a trailer you will need both a trailer hitch, the Adjustable Width Trailer Hitch Receiver part # 13703 as well as a 7-way, the Pollak 7-Pole, RV-Style Trailer Connector Socket part # PK11898. This 7-way will just splice in behind the tail lights on the 5th wheel. However, the amp draw of each circuit will be limited so you might need to change out the lights to LED bulbs or disconnect a few if you blow fuses. Aside from the brake output wire, this will be all that you need save for a ball mount/hitch ball like the etrailer.com Ball Mount Kit part # 989900.
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
- 4 Flat
- Plug and Lead
- Optronics
more information >
Continue Researching
- Shop: etrailer Horizontal E Track - Galvanized Steel - 2,000 lbs - 94" Long - Qty 4
- Search Results: e track
- Search Results: trailer suspension parts
- Search Results: e track kits e track
- Q&A: Installing a 7-Way Connector at the Rear of a 5th Wheel Trailer with a 4-Pole Connector
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Video: Firestone Ride-Rite Air Bags with Easy Mount Compressor Feature Breakdown
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Search Results: trailer hitch
- Article: Trailer Wiring Diagrams
- Q&A: Installation Time for Blue Ox BX1128 Flat Tow Base Plate Kit for 2016 Jeep Grand Cherokee
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: trailer tires and wheels
- Video: How to Choose a Trailer Brake Controller
- Shop: etrailer Anti-Rattle Hitch Collar for 2" Hitch Receivers
- Video: The Low-Down on the Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: How to Measure Your Trailer Wheel Bolt Pattern
- Search Results: trailer wiring
- Video: An In-Depth Look at the Roadmaster Battery Charge Line Kit for Towed Vehicles
- Article: How to Measure for Trailer Hitch Drop
- Q&A: Best Suspension Upgrade for 33" Tandem Axles: Road Armor vs Dexter EZ Flex for Ember 22ETS
- Search Results: trailer jack
- Shop: Brake Controller
- Shop: Power Mountain Tallboy Off-Road Bottle Jack - 8-1/2" to 37-3/4" Lift - 6 Tons
- Shop: Hub Bearing Kit for Lippert, Dexter, and AL-KO Axles - 3,500 lb with #84 Spindle
- Video: Measuring To Choose The Right Trailer Axle
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Instructions to Wire a Trailer for Electric Brakes
on Trailer Wiring
