Should I Put a 7-Way Blade or Round in Place of 6-Way

Question

Question:

Hello, I am in the process of buying a trailer that has a 6 way round connector. I need to either wire it convert it to a 7 way round or 7 way blade connector. Can you assist me in this?

asked by: Nick C

0

Expert Reply:

Hey Nick, since the 7-way blade is a lot more popular than the 7-way round I would definitely recommend going with a 7-way flat. For that we have the part # e99011 which comes with a junction box to make installing on your trailer as easy as possible. What does your tow vehicle have on it?

expert reply by: Jameson C

0

Nick

2/7/2025

The tow vehicle has both round and flat. The trailer is going behind my service truck. The trailer plug would just have to be rewired, not the entire trailer correct?

Jameson C.

2/9/2025

@Nick Yes this is correct. You just need to wire the new connector to the existing wiring once you remove the old connector.

Nick

2/10/2025

@JamesonC Thanks for the advice. Is it as simple as cutting the plug and inserting it in the new junction box? Or is there a crossover wiring diagram I could use to rewire the plug end?

Jameson C.

2/10/2025

@Nick I wish it was as simple as plugging the old harness into the junction box but you will need to determine the functions of the wiring of your harness after you remove the old connector and then run the wires to the labeled terminals in the junction box. If I could attach a picture to this message that had a diagram I would but instead best I can do is have you check out the attached link to see various connector wiring diagrams.

Helpful Links

faq-wiring.aspx

See All (5) Replies to Nick ∨

Answer 1

Hey David, so the Tow Ready part #118158 that you referenced is just a signal converter to take a combined setup and make it separate which is why it doesn't have a running light circuit. More importantly though this wouldn't work for you…

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Answer 2

The #e99011 fits both styles of vehicle 7-way configurations. The only difference between the two is the colors of the wires. The functions are all pinned out the same on the 7-way and the physical connector is exact same as well.

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Answer 3

Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…

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Answer 4

Hello Pat, thanks for getting in touch. We deal in all sorts of cords and plugs for trailers, so we most likely will have what you are looking for. Can you tell me exactly what you are needing this cord for? What kind of plug is on your truck…

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Answer 5

On trailer brake magnets like what's on the brake assembly #23-106 the magnets are not polarity sensitive which means either wire can be used as the power or ground as long as the other is the opposite. This is why the wires of the assemblies are…

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Answer 6

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 7

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 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 necessary.…

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Answer 9

Hey Jeff! The Dexter 12V KTI Hydraulic Pump #DX53ER does not include oil. The most common recommendation is probably Dexron III. This is what KTI officially says for their pumps: "KTI recommends using a premium hydraulic oil to ensure optimum…

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Answer 10

Hey Jeff! Welcome back and thanks for the information! The DeeMaxx Disc Brake Kit w/ Actuator item #DE84NR is exactly what you'll need to upgrade to electric over hydraulic brakes. This kit includes everything you need for your tandem axle…

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Answer 11

Hey Dale, both DeeMax and Hydrastar make really nice disc brake components. Either kit is going to work really well for your 2022 Grand Design Reflection 337RLS. If you want the best of the best and don't mind paying for the premium brand then go…

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Answer 12

The only difference between 7-Way Utility and 7-Way RV is the color of the wires. The pin outs are the exact same so either would work just fine with the other. If you check out the picture I attached you'll see that the functions are all the…

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Should I Put a 7-Way Blade or Round in Place of 6-Way

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