Wiring the Hopkins 7-Way and the Colors Dont Match Those on My Trailer

Updated 05/08/2014 | Published 05/06/2014

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Question:

Concerned about product 07997620046 pin color arrangement. Unconventional.

asked by: Jerry B

Expert Reply:

There are more commonly used colors which is what is on the Hopkins 7-Way, # H20046. Wire color configurations typically vary by age of the trailer and type of the trailer. For example, an RV manufacturer tends to use different wiring than the manufacturer of livestock trailers.

You will always want to wire by function and not by color. The use of a circuit tester like # PTW2993 will help with this process. I have attached a wiring help article which may be of help to you. Keep in mind that the colors used in our article are common but again not standard.

I am also including a wiring chart for the Hopkins harness which may be helpful to you.

It is recommended that you use a small amount of grease on all electrical connections. Dielectirc Grease, # 11755, helps to prevent electrical failures caused by corrosion and moisture.

expert reply by: Leah S