Can Trailer be Wired for Backup Lights Using 5-Way Plug and then Converted to 7-Way

Updated 09/09/2014 | Published 09/06/2014

Products Featured in This Question

Hopkins Wiring Harness with 5-Pole Flat Trailer Connector - Vehicle End - 5' Long

(15)

$11.72

16 Gauge Primary Wire - Black - Per Foot

(61)

$1.14

Adapter 7 Pole to 5 Pole Flat Wired Adapter

(172)

$15.86

Hopkins Endurance 5-Way Flat Trailer Connector - Trailer End - Ergonomic Design

(90)

$12.19

Pollak Black Plastic, 7-Pole, RV-Style Trailer Connector - Trailer End

(692)

$6.67

Question:

Can I hook up backup lights on a 5 prong plug and use a adapter plug that goes in my 7 way plug. Or will I have to buy a 7 way plug and wire it that way.

asked by: Jesse

Expert Reply:

Yes, you could wire your trailer to have backup lights by using a 5-way flat like the Hopkins Endurance Trailer Connector, # HM47910, and then use an adapter like the 7 Pole to 5 Pole Flat Wired Adapter, # A57WB, to be able to plug in to your vehicle's 7-way.

Although wiring the 5-way connector for backup lights and then converting to the 7-way will work, this will require more parts than what is necessary. I recommend just wiring in a 7-way connector like the Pollak Black Plastic, 7-Pole, Trailer Connector, # PK12706. This will not only allow you to connect the backup lights on your trailer but also connect directly to the vehicle 7-way.

If you don't have wire already, you can use our Primary Wire 16-Gauge, # 16-1-1, to wire your trailer for backup lights. This wire is sold by the foot so you can order just as much as you need.

I have included a picture and an article for you to check out.