Replacement Wishbone Style 4-Way Trailer End Plug

Question

Question:

My 4 pin plug coming off of my boat trailer has five wires. Two of the wirea yellow. I can not find a plug that has 2 yellow wires to replace it.

asked by: David E

0

Expert Reply:

Thanks for that photo and what you have is a wishbone style wiring harness, although the colors are inconsequential for a harness because there isn't a standard wiring code that is color-for-color. You can replace your harness with the Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End # 002402 but you will need to wire it by function.

This means you'll have to apply 12 volts to your wires via a battery to determine the function of the wires so you can connect the new trailer plug. Or you can try and trace the wires back to determine the function of each, though this can be pretty tricky.

I have added a link to a video review of the Wesbar Wiring Harness for you as well as a link to a help article on trailer wiring which I highly recommend taking a look at.

expert reply by: Kyle S

0

click to enlarge

Answer 1

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

view full answer...

Answer 2

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

view full answer...

Answer 3

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…

view full answer...

Answer 4

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.…

view full answer...

Answer 5

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…

view full answer...

Answer 6

Great question, William! The Karrier ST225/75R15 #KE63KV is a KR35 while the Karrier ST225/75R15 #AM10303 is a KR03 according to Kenda. There is a slight variation in the tread pattern and from what Kenda says about them it looks like the KR03 is…

view full answer...

Answer 7

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

view full answer...

Answer 8

Since both a ST145/R12 size tire, like the Kenda Karrier S-Trail #AM10130, and a 5.30-12 size tire, like the Kenda K353 #AM10068, fit a 12 inch wheel, a ST145/R12 size tire can replace a 5.30-12 size tire. Keep in mind that these tires do have…

view full answer...

Answer 9

The Dexter Trailer Idler Hub Assembly for 3,500-lb Axles item #84545UC1-EZ fits a item #L68149 bearing which has a 1.378" inner diameter. I would not recommend using this hub on a boat trailer. Instead, you'll want a galvanized one like item…

view full answer...

Answer 10

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

view full answer...

Answer 11

If your trailer has 7 wires running all the way back to the brakes, then yes, you can tap into the existing wiring. Each of your new brakes will have two wires for the brake magnet. One wire is for 12 volt power to the brake magnets and the other…

view full answer...

Answer 12

Hello Rocky, thanks for reaching out. If your new leaf springs do not have as much of an arch as the old springs they are definitely not going to help your situation if your tires are already rubbing on the fenders. What we would usually do here is…

view full answer...

Replacement Wishbone Style 4-Way Trailer End Plug

Product Page this Question was Asked From

Featured Help Information

Miscellaneous Media

Continue Researching