Diameter of Wire Terminals in Spectro Wire 38656 Trailer Wiring Junction Box

Question

Question:

Spectro 38656 junction box - Can you tell me the diameter of the threaded studs inside of box that are used to connect wiring?

asked by: ED

1

Helpful Expert Reply:

The terminals in the Spectro # 38656 are 1/4 inch in diameter, I've confirmed this with my Spectro Wire representative. The # DW05740-1 ring terminals would be compatible with the terminals in the junction box.

expert reply by: Mike L

1

Answer 1

The EZ Connector Magnetic 7-Way Trailer Connectors #319-R7-02 you found uses a vehicle side connector which tee's into the vehicle wiring. This allows you to retain your factory 7-way and be able to connect to either the included magnetic…

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Answer 2

The junction box #38656 is for exactly what you're trying to do. It makes the wiring look a lot cleaner and keeps the connections out of the way. You also need some ring terminals to make the connections. I've linked our selection so…

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Answer 3

The Trailer Wiring Junction Box #38656 referenced in your question features 3/16 inch outer diameter terminals that will work perfectly with ring terminals like #44-5310A. This junction box will provide a fast and easy way to connect the wires from…

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Answer 4

First of all did this problem just start happening? If the trailer has always worked fine before on the same truck then it's likely a short on the trailer's brake wiring. I would start by cleaning the connector and make sure…

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Answer 5

The lid of the Junction Box part #3375601101 that you referenced does not have an O-ring or seal built into it. The lid has a pretty deep channel though that fits to the base of the box well enough that it does a decent enough job keeping moisture…

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Answer 6

It sounds like what you have now on your trailer is a 4-Way wishbone harness that uses a running light wire on each side of the trailer. This is why there are 5 wires going to the connector instead of 4. A wishbone harness makes it a bit easier to…

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Answer 7

I pulled the Trailer Wiring Junction Box #38656, and Ring Terminal #44-5310A, from our warehouse. The correct ring terminal size that will fit is part #44-5310A, which is a 3/16 ID terminal for 12-10 gauge wire. I produced a short video showing…

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Answer 8

The Trailer Wiring Junction Box part #3375601100 and Trailer Wiring Junction Box part #38656 are both pretty standard 7-terminal junction boxes. The latter is slightly smaller so there will be more places to mount it so that is what I recommend but…

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Answer 9

According to Spectro Wire, the terminals and hardware of their #38656 junction box are chrome plated steel. The junction box actually does a pretty good job of keeping the weather out, and taking a couple of precautions like placing a dab of #38656…

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Answer 10

The Hopkins 7-Way Molded Trailer Wire Connector #H20043 is designed to be installed on a trailer and is compatible with the 7-way connector on your 2013 Tundra. When installing this harness I recommend using a wiring junction box like part #38656.…

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Answer 11

I attached a picture of a 10 terminal junction box that is using every single available terminal. If you had turn signals that were separate from your trailer brake lights this would be the junction box to use along with the #118158. Otherwise the…

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Answer 12

If you are wanting to secure the wiring on your trailer and keep it secure I recommend using a wiring junction box like part #38656 on your trailer. You can place the junction box on the tongue of your trailer and run the wires from the trailer…

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