Semi Trailer Light Function Locations on Heavy Duty 7-Way Pin Connection

Question

Question:

What pin on the plug brings power to the marker lights on the back of the semi trailer? Thanks

asked by: Chris A

0

Expert Reply:

On a 7 pin round which is the common connection on a semi trailer, the clearance/marker lights are at the 10 o clock position when you look at the trailer wiring connection. When looking at the connector on the back of the truck, that will put the same function at the 2 o'clock position pin.

I've attached a photo of each to assist.

expert reply by: Jason S

0

click to enlarge

Answer 1

The wiring color codes and wire gauge recommendations for the Pollak Heavy-Duty, 7-Pole, Round Pin, Trailer Wiring Connector, item #PK11700, are listed below. White - Ground Return - 8 gauge Black - Clearance, Side Marker, Identification - 12 gauge…

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Answer 2

I am sorry Rusty but we do not sell the 3M button clips separately for the WeatherTech Front Auto Floor Mat item #WT4410631 you were looking at. I recommend reaching out to WeatherTech directly as my only solution would be to sell you new floor mats.…

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Answer 3

Hey Donnie! The only thing we would have is the Tuson Heavy Duty Truck Module Kit for DirecLink Brake Controller item #335HDCON-9PIN, which it sounds like you already have. This one is specifically designed for the Volvo semi's. It works with the…

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Answer 4

The trailer brakes work on a separate circuit than the lights. You have a couple of options to control the electric brakes on the trailer. One option is to use an air over electric brake control, #HA100400C. This unit connects to the air brakes on…

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Answer 5

Either way is correct. It depends on if you want to keep the semi-style 7-Way (if you need to tow that type of trailer) or if you will never be towing a semi-trailer. If you need to keep the 7-Way semi active on the truck, then you would need to make…

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Answer 6

Semi truck connectors are typically wired differently than those on pickups that are used for recreational towing. The linked article on wiring includes diagrams that show the various configurations in use. In certain circumstances wiring adapters…

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Answer 7

You can use the Pollack #PK11700 to install on your gooseneck trailer and create a 7 way plug capable of fitting on the 7 pole round plug that is on a semi tractor trailer truck. For the wiring you can use the Deka Jacketed 7 Wire #DW04914-1 which is…

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Answer 8

The wires exiting the rear of your controller serve the following functions. The blue wires carries the brake output from the controller, the white wire is the ground, the black wire supplies 12 Volt power, and the red wire is tied into the vehicle…

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Answer 9

Seal 171255UC has an inner diameter of 1.719 inches and outer diameter of 2.565 inches. A seal that has those dimensions would actually be #58846. I've added a link to a video review of this seal for you to take a look at.

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Answer 10

We don't carry the 2x2 inch square axle in that length. We carry the Dexter Trailer Axle Beam with EZ-Lube Spindles - 89" Long - 3,500 lbs #T3584F-EZ-8974 which is the comparable round axle which will work just fine. You simply will use the…

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Answer 11

I have added a photo detailing the wiring connections for the Pollack Heavy-Duty, 7-Pole, Round Pin conncetor, #PK11700, see link. This is a SAE J560 compliant connector. The wiring diagram for the vehicle side connector, #PK11720, is pictured also.…

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Answer 12

I've looked through the various replacement master cylinders we offer, and couldn't find anything that matches your photo. I found out that Reliable stopped manufacturing brake actuators several years ago, and replacement parts aren't…

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Semi Trailer Light Function Locations on Heavy Duty 7-Way Pin Connection

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