Which Wire is 10 Gauge in the Jacketed 7-Wire Trailer Wiring, # 127C500-1

Question

Question:

do you know which wire in this bundle is the 10 gauge, as i understand the description 6 are 12 gauge and 1 is 10 gauge. i am hoping the 10 gauge is the brake line blue? thanks!

asked by: Eric

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Expert Reply:

I went out to the warehouse to examine the wires contained in the jacket 7-wire, # DW04914-1. The white wire is actually the 10 gauge wire and the others are all 12. You would still use the white wire for the brakes if you wanted but traditionally, though there is no standard, white is the ground. Or, if you wanted separate blue wire, 10 gauge, you could use # 10-1-1. Both of these wires are sold in 1 foot increments.

expert reply by: Michael H

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Answer 1

The brake output wire of the jacketed 7-way wiring part #DW04914-1 that you referenced does come with a heavy enough gauge of wire for your brake circuit. The 12 gauge brake output circuit would work well.

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Answer 2

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 3

The brake wires can be spliced together and have one wire run to the junction box if that is easiest for you. On a single axle you could also have separate brake wires for both sides if you wanted to but most of the time there is a single wire out to…

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Answer 4

I called my contact at Bearing Buddy and they told me that the seal ring included with the Spindle Grease Seal Set, part #BB60005 will work fine on your spindle that measures 1.25 inches diameter. This set includes the steel seal ring, O-ring, and…

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Answer 5

For the brake circuit of your trailer you will want to run 10 gauge wire like our part #10-1-1 which is sold by the foot and is standard copper primary wire. We use it all the time here on trailers and it works great. For bonded 14 gauge wire that…

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Answer 6

There are different angled cones for the wheel lug nuts found on trailer wheels and hubs. The most common lug nut cone degree is the standard 60 degree like the part #12CLN-L. We also the 90 degree cone with part #STN569.

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Answer 7

To wire your electric brakes you will want to run 10 gauge wire #10-1-1 to one of the brakes and run it to the other brake, using butt connectors like #05732-2 to connect them. The grounds will not be spliced, each brake assembly should have its own…

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Answer 8

The 12V wire at the vehicle-end trailer connector being hot even when the truck is off can vary depending on the application. For all aftermarket hardwiring installations of a 7-Way wiring harness, the 12V wire will be hot at all times, even when the…

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Answer 9

For a circuit breaker, I recommend using a 40 amp circuit breaker, like the Pollak 40amp In-Line Circuit Breaker #9510. The wire that runs to the battery will connect to the gold post, and the line that connects to the junction box will connect to…

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Answer 10

The only wires that could be hot all the time on a trailer connector is the 12-volt hot lead, which is usually a black wire, and, if applicable, the auxiliary power wire, which is normally yellow or purple. The blue wire is usually for electric…

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Answer 11

On a 7-Way connector the suggested minimum wire gauge for the White (ground) wire, the Red or Black (power) wire, and the Blue (brake power) wire is 12 gauge. The minimum wire gauge for the remaining Green (right turn/brake) wire, the Yellow (left…

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Answer 12

The only pin that should be continuously showing 12V power on the 7-Way connector on your vehicle is the 12V power circuit which is normally the black wire but not always. In 7-way wiring the 12V auxiliary power feed is carried on the contact at the…

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Which Wire is 10 Gauge in the Jacketed 7-Wire Trailer Wiring, # 127C500-1

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