Are All 7 Way Blade Connectors the Same

Question

Question:

Are all 7 way blade connectors the same? Im referring to the trailer side.

asked by: Dennis P

1

Helpful Expert Reply:

Yes, there is only one type of 7-way blade connector. I am attaching a help article about wiring that may be of interest to you.

expert reply by: Leah S

1

Answer 1

Brake controllers require a fairly substantial ground which can be achieved by connecting the controller ground to the negative battery terminal. In some situations a chassis ground is fine but if you are running wires through the firewall anyway…

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Answer 2

As far as the mounting bracket, you can absolutely screw it directly to the hitch if you want. We do this frequently in our own installs and it will not compromise the strength of the hitch in any way. Now putting a few holes in the hitch does open…

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Answer 3

The proper mounting location for side marker lights such as #MC32AB are as follows: For rear side marker lights you must have one on each side of your trailer and as far toward the rear of trailer as possible. They will need to be 15 inches or more…

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Answer 4

It's a wire color difference but not a function difference on the pins of the 7-way. The difference comes from the fact that the two different styles are representative of two different areas that uses trailers. Traditional is usually seen…

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Answer 5

The Bonded 4 Wire - per foot #16-4B-1 you asked from would use the brown running light wire for your clearance/marker lights. The LED light you referenced sound like they have two wires so one will be power and the other ground. You can connect…

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Answer 6

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 7

There is a formula used for determining clearance that will help you know if you need an offset or not: Measure the distance from the center of the gooseneck ball to the back of the truck cab. Call this measurement A. Next, measure the width of the…

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Answer 8

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more…

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Answer 9

There are two wiring codes that typically get used for 7-way connectors and the only difference is the color of the wires and not the actual pin out. I attached a picture that shows the two common styles. If your trailer uses one style and the…

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Answer 10

It sound like some of the functions on your trailer wiring are not connected in the standard pin locations which is what both Pollak and Hopkins use. On your trailer, locate the wires and pin location by function only as color coding is not standard…

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Answer 11

For your replacement 3 wire to 2 wire converter, I recommend the Curt Vehicle to Vehicle Tail Light Converter #C56196 or the Tow Ready Vehicle to Vehicle Tail Light Converter #118158. Either of these are specifically designed to convert the 3 wire…

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Answer 12

If your trailer has separate turn signals from the brake lights and you want them to remain that way, you will need to use a special converter. On the trailer side, behind the 7-Way, you will attach the Vehicle to Vehicle Taillight Converter,…

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Are All 7 Way Blade Connectors the Same

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