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Wesbar 4-Pole Flat Connector w/ Jacketed Cable - Trailer End - 4' Long

Wesbar 4-Pole Flat Connector w/ Jacketed Cable - Trailer End - 4' Long

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Wesbar 4-Pole Flat Connector w/ Jacketed Cable - Trailer End - 4' Long 0 - 5 Feet Long W787264
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This 4-wire flat, trailer-end connector includes a 4' long, jacketed cable with stripped, color-coded wires for easy installation. Lowest Prices for the best wiring from Wesbar. Wesbar 4-Pole Flat Connector w/ Jacketed Cable - Trailer End - 4' Long part number W787264 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (113)
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Wesbar Wiring

  • Trailer Connectors
  • Trailer End Connector
  • 4 Flat
  • Plug and Lead
  • 0 - 5 Feet Long
  • Wesbar

This 4-wire flat, trailer-end connector includes a 4' long, jacketed cable with stripped, color-coded wires for easy installation.


Features:

  • 4-Way flat connector provides a male plug for your trailer
  • Jacketed cable protects wires against the elements
  • Color-coded, stripped wires ensure simple installation


Specs:

  • Wire length: 4'
  • Wire size: all four are 16 gauge
  • Wire configuration:
    • Yellow: left turn and stop lights
    • Green: right turn and stop lights
    • Brown: tail, license, side marker and clearance lights
    • White: ground wire
  • 1-Year limited warranty


787264 Wesbar 4-Pole Flat Connector w/ Jacketed Cable - Trailer End - 4' Long

Item # W787264




California residents: click here


Video of Wesbar 4-Pole Flat Connector w/ Jacketed Cable - Trailer End - 4' Long

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Wesbar 4-Pole Flat Connector Installation

Today on our enclosed trailer, we are going to be installing the Wesbar 4-pole flat connector which jack and a cable, part# W787264. We are going to begin here by removing the old 4-flat that is on this trailer. We are just going to cut it out of the way as we won't be reusing any of the old wiring. We are going to be wiring the 4 wires here into this junction box that is already mounted onto the trailer, and the other end will route up towards the jack area of the trailer. We will go ahead and remove the cover of the box. Next we are going to go ahead and take our 4 wires here and feed it through the grommet here on the box. We'll go ahead and strip back a little wire from each of the 4 and add in our ring terminal. We'll need to go ahead and add them to the appropriate stud.

We'll be matching up color per color. Next, we are going to install this little bracket here with these 2 screws to make sure that this wire doesn't move in and out of our junction box. Once our screws are in place, we'll go ahead and tighten them down. Now we will go ahead and put the cover back on the box, take the other end of our 4-flat here and pull it up towards the jack area, and then we're going to use a couple loom clamps to secure the wire to the trailer frame. The loom clamp we will be using is part# A0500. Now that we have our wires secure, we'll go ahead and plug it into our tester.

Now if you don't have a tester, you can just use your tow vehicle to check to make sure everything is working properly. Now we will go ahead and turn on our running light circuit. Next we will go ahead and try the left blinker. Now we will go ahead and move over to the right side blinker. Now we will go ahead and check the brakes. That will do it for the installation of the Wesbar 4-pole flat trailer connector, part# W787264 on our enclosed trailer.

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Customer Reviews

Wesbar 4-Pole Flat Connector w/ Jacketed Cable - Trailer End - 4' Long - W787264

Average Customer Rating:  5.0 out of 5 stars   (113 Customer Reviews)

This 4-wire flat, trailer-end connector includes a 4' long, jacketed cable with stripped, color-coded wires for easy installation.

- W787264
by:

This is a great replacement trailer light 4-prong connector. The wires are wrapped in an insulation cover and the connection itself is rugged and well-made. This is the one to buy.



- W787264
by:

Easy install, clear instructions, continues to function perfectly after a year and 10,000+ miles and more than a dozen states.



- W787264
by:

Delivery was quick and electeical was just what I was looking for. Was able to mount bracket to hitch and running the wiring was easy with it all color coded. The single sheathed trailer plug was also what I was looking for and priced below anywhere else. Was very industrial and was almost an exact match to replace the existing one on my triton trailer.



- W787264
by:

I have been very pleased with etrailer orders recently. Everything shows up when expected and products are as expected. Attached are a couple before and after pictures of my recent project to add lights to a cargo rack per my wife's request. Thanks for the professionalism of all at trailer



- W787264
by:

Works like the original. Fast shipping. I would buy again.



- W787264
by:

Excellent replacement cable. It has held up very well for more than a year and expect it will last many more years.



- W787264
by:

I bought this to replace the one that came on my boat trailer. This is a good quality cable and molded connector. I'm sure that if I am careful with it , that it will last for as long as i need it. I have bought a number of items from etrailer and have yet to be disappointed. Good stuff, good service.


Comments
Looks like it did when I installed it, good stuff. Much better than what came on it from the factory. Well pleased.
jimmy m - 01/29/2019



- W787264
by:

Worked great, very protected wire sleeve which has made it hold up to the elements.



- W787264
by:

The spring loaded connector cover on my 2014 Ram pickup was pressing so hard on my 4 prong plugs that it was breaking the conductors inside the insulation, right at the entry to the connector. I switched to using the 7 prong socket and bought a 7 - to - 4 - pole adaptor. As added insurance I added these heavy duty connectors with heavy gauge wire pigtails. Great quality on these, and a nice 4 foot pigtail clad in heavy rubber to protect from sun and other damage. Bought 2, and will be buying 4 more from etrailer for my other trailers. Fast ship from etrailer, too.


Comments
Great quality and heavy duty wire. Ive bought 6 of these and Im replacing all of my trailer plugs as time permits.
Norm C - 06/09/2018



- W787264
by:

Replacement plug is working great. The sheath cover over the actual wires should make it last along time. Easy install with heat shrink connectors I had on hand. great product at a great price. Thank you James.



- W787264
by:

This four pin harness is heavy duty and the quality is very good. I needed to upgrade the 47 year old harness on my trailer which had multiple splices and the extra length of this product was enough to get rid of the old wiring. Looks really nice and professional. And I still can not get over the customer service and promptness when dealing with etrailer.....you guys are great, keep up the good work!!! Don't forget to order the mounting clamps to complete the installation.


Comments
Been using this harness now for about a year and it has held up well.....still flexible and pins are sturdy. It is a pleasure to use compared to the old cheepo wiring that came with the trailer :
Edmund G - 06/11/2016



- W787264
by:

I have ordered a couple things from etrailer.com com now. I set them up in my browser favorites as my "Go To" trailer parts. I am not sure how big of a company it is, but the personal customer service is exceptional. In addition to just overall service, the product itself is exactly what you should expect it to be. Every item I have order as been perfect without defects. I have not found any other sites with service like this. Thanks George.



- W787264
by:

I really cannot grade the product as I never got to use it. The trailer where the wiring harness was needed ended up being in worse condition than I thought and got recycled. As far as customer service, you were great.



- W787264
by:

Trailer connector was installed with waterproof splices. So fay every time I plug it in it works, its when I unplug it that it stops works. totally baffled by this. Will have to leave it plugged in every time I use it.



- W787264
by:

The Wesbar trailer connector cord I purchased is perfect! Great quality and etrailer sent it rabbit fast. I highly recommend etrailer.



- W787264
by:

Works great!



- W787264
by:

Great products, great quality, great service! 10!



- W787264
by:

Wesbar plugs are great quality. They snap together and stay connected. The pins are molded into the plug, very durable. The wire cover is heavy duty.I will definitely buy Wesbar plug harnesses again. Mike at etrailer provides great customer service. He helped me with a fender order that had the wrong picture on the web site. He reshipped the correct fender the day we spoke on the phone and rushed it to me . Thanks again Mike for your help and great customer service. That is what keeps me coming back again & again.



- W787264
by:

This product is perfect for use on utility/other trailers as it is far superior and much more durable and rugged than "plain" flat four-wire, so it will hold up much better to repeated use and weather.


Comments
Installed the quality product in prep for future car tow. Insulation on cable is far superior to flat wire, which helps protect the wires in harsh environments, be it under hood for towing car as dingy, or perfectly suitable for utilityother trailers using 4-wire connections.
Paul B - 07/30/2016



- W787264
by:

As always etrailer is the best for any of your trailer needs.



- W787264
by:

Very well made. Sturdy. Should last a long time.


Comments
Great! Best plug I have ever had. I just wish I had switched it over years earlier. I didnt realize anyone made a heavy duty plug like this.
David F - 06/07/2020


- W787264
by:

I bought two of these previously and liked them so much that I bought 3 more. 16 gauge wire is way heavier than most trailer plugs/harnesses come with, plus the plugs are heavier duty and the cable is clad in heavy rubber for protection. I would buy more but I only have 5 trailers at the moment.



- W787264
by:

This is a great product that I wish knew existed years ago. I have wired many trailers and the connection will last for many years due to the fact that the connector is molded into the actual harness instead of having 4-5 loose wires that seems to take a beating and break.



- W787264
by:

High-quality piece. I chose this connector over the cheaper alternatives because it looked sturdy and the wires are covered. Due to the condition of the previous connector the covered wires for my boat trailer were the way to go. I was able to install this with no problems and it works great! Also, the length was a big upside and I can make left turns with the trailer without worrying that the connector is going to pull out!



- W787264
by:

This a very heavy-duty cable, even at twice the price it would be a bargain. I'm also ordered the junction box and it was easy to wire up. This set up made for a very professional installation. Could not be happier with this product. And etrailer iso a great Company to buy from, their service is the best! I have bought quite a number of items from them and always been happy with the results. Jim O


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Ask the Experts about this Wesbar Wiring

  • Replacement Trailer Wiring
    if there wasn't much cut off you can use this 4 foot long 4 pole pigtail # W787264 or if you need a little bit more you can get the 10 footer # W787270. If you have a 7 pole you can get this 8 foot long 7 pole wiring # H20046. Whenever wires get cut, I am weary about patching it up as it could cause other problems in the future. I would much rather replace the whole harness.
    view full answer...
  • Replacement 4-Way Recommendation for Trailer 4-Way with 7-Wires Ran to it
    Sounds like each of the taillight circuits on your 4-way have a two wires ran to them for each side of the trailers wiring. This is pretty common and what you can do is wire the two wires of each pin to the single wires of a new 4-way like the # W787264. That will allow all of the same circuits to get the same signal.
    view full answer...
  • Can Standard Trailer 4-Way Replace One With 7 Wires
    A 4-way with seven wires has two wires for each side of the taillight circuit, and you can use a standard 4-way, like you mentioned, the Wesbar 4-Pole Flat Connector # W787264. I have added a link below to a video review for you to take a look at, as well as a couple help articles on trailer wiring you may want to check out.
    view full answer...
  • How to Install a License Plate Light on a Cargo Carrier for Use in California
    I believe I have a solution for you, but it will require you to install trailer wiring on your 2010 Toyota Prius. For trailer wiring you will want the Tow Ready wiring harness part # 118505. This will give you a 4-way with a running light circuit that you could use to power a light for the license plate that would only come on when your headlights are on. You will then have to mount a lighted license plate bracket on your cargo carrier like the part # LPL55CB. You will run the black...
    view full answer...
  • Which License Plate Bracket with Light for Cargo Carrier to be Used with Curt Auxiliary LED Lights
    In order to add a light to a cargo carrier I recommend using the Optronics LED Trailer License Plate Light w/ Bracket - 5 Diodes - Clear Lens # LPL55CB. The Curt Auxiliary LED Indicator Lights # C53201 does not provide an easy solution for powering the license plate light, however you will want to tap into the running light circuit either on the wire that runs to the plug or you can bypass the plug on the wiring and connect directly to the running light circuit on your vehicle's 4 way plug...
    view full answer...
  • Replacing Wishbone 4-Way Connector on Trailer
    It sounds like you have a wishbone harness on the trailer that uses a separate running lights wire for each side of the trailer. From the picture you attached it looks like these two wires were molded to the turn/brake signal wires (yellow and green), most likely to ease the process of running them down the length of the trailer. When wiring your new 4-Way you will need to peel back/separate both brown wires and connect them both to the running lights pin, being sure not to also connect...
    view full answer...
    Image 1 for
  • Can 4-Way Trailer Wiring have 7 Wires Ran to It
    Sounds like each of the taillight circuits on your 4-way have a two wires ran to them for each side of the trailers wiring. This is pretty common and what you can do is wire the two wires of each pin to the single wires of a new 4-way like the # W787264. That will allow all of the same circuits to get the same signal.
    view full answer...
  • Wire Gauge Recommendation to Power 20 LED Trailer Clearance Lights
    LED lights don't typically draw very much amperage, but since you will be installing 20 of them on one circuit the best option is to use a heavier gauge wire like 10 gauge part # 10-1-1 (sold by the foot). With 10 gauge wire you could run all of the wires in series so that you wouldn't have to run a ground wire for each light back to the junction box. So basically you'd take the running light circuit power wire and run it to the first light's power wire, and then use the ground wire of...
    view full answer...
    Image 1 for
  • Wiring In Trailer 4-Way to Trailer with White, Brown, Yellow/Beige and Green/Beige Wires
    Your trailer wiring is pretty standard in colors so it would be pretty easy to wire up a standard 4-way to it. The colors would mainly match but where you have a yellow/beige you'd just run the solid yellow to it and the green/beige would get the solid green ran to it.
    view full answer...
    Image 1 for
  • What Is the Wire Gauge Size On Wesbar 4-Pole Flat Connector # W787264
    On the Wesbar 4-Pole Flat Connector, part # W787264, the wire gauge size is the same on all 4 wires. It is 16 gauge wire.
    view full answer...
  • Can Trailer Lighting Be Grounded to Main Ground Wire
    If you wanted to run a ground wire from each of the assemblies to the main ground wire of the trailer wiring you certainly could. 14 or 16 gauge wire would work well too since LED lights do not draw that much amperage.
    view full answer...
  • Is 16 Gauge Wire Adequate for Trailer Wiring for Lighting
    Most trailer wiring that runs to trailer lights is 16 gauge. I would rather people use 14 or 12 unless the lights are LED which draw considerably less. But for most people 16 gauge works just fine for basic trailer lighting. If you are planning on running several running lights or just more lights in general you would want thicker wire. I attached a help article on trailer wiring for you to check out as well.
    view full answer...
  • How To Replace 4-Way Flat On Trailer That Has 7 Wires To It
    When a 4 flat connector on a trailer has 7 wires it usually means it either has extra grounds or extra tail light wires. Most likely if the extra wires are white then it is ground, if they are brown then they are most likely tail light wires. The only way to know this for sure it to test the wires for function using a 12V battery and a jumper wire. Touch one end of the jumper wire to the positive post of the battery, the touch the other end of the wire to all of the different wires to...
    view full answer...
  • What Gauge Wire does 4-Way Trailer Wiring Use
    Typically 4-way wiring consists of 18 and 16 gauge wires. For a 4-way that has all 16 gauge wire you would want the Wesbar 4-Pole Flat Connector # W787264. The part # HM38138 uses 18 gauge for all wires but the white that uses 16 gauge.
    view full answer...
    Image 1 for
  • How To Make 15' 4-way Trailer Wiring Harness With 14 Gauge Wiring
    We have the parts you are looking for, but none of our 4-way connector harnesses use 14 gauge wiring as 4-way connectors typically use 16 gauge wire. With that said you can make your own using the Deka Jacketed 4-Wire - 14 Gauge # DW04923-1 which is sold by the foot and 4-way connector # HM48192. To make the connections to the lights on the trailer I recommend using heat shrink butt connectors # DW05744-5. I included a few videos of the products mentioned for you to take a look at.
    view full answer...
  • What Gauge Wire Does 4-Way W787264 Use
    All four wires of the Wesbar 4-way part # W787264 are 16 gauge.
    view full answer...
  • Parts Needed to Convert From 7-Round Pin on Trailer to Connect to 4-Flat on Vehicle
    The best solution for you, since there are no plug-in adapters to connect to your vehicle's 4-flat with a 7-round, is to remove the (soon to be obsolete) 7-round on your trailer. Since you have a 4-flat on your vehicle and only need those functions you will cut off the 7-round and install the Wesbar 4-Pole Flat Connector w/ Jacketed Cable - Trailer End - 4' Long # W787264. You will simply wire the connector by function using Butt Connectors # DW05744-5. I have added a link to a help article...
    view full answer...
    Image 1 for
  • Recommended Replacement 4-Way Connector For 1960 Trailer
    We do offer flat 4-way trailer connectors. I recommend the Wesbar 4-Pole Flat Connector w/ Jacketed Cable, part # W787264. You would need to cut the connector off of your trailer and test the wires on the trailer for function using a 12-volt power source and a circuit tester like part # 40376. I recommend using a junction box like part # 38656, to protect the wiring. For ring terminals I recommend part # DW05702-1 for 14-16 gauge wires and part # 44-5310A for 10-12 gauge wires. I...
    view full answer...
  • Vehicle Side 4-Way Trailer Connector that is 4 Feet Long
    The Hopkins Endurance Easy-Pull 4-Pole Connector # HM48044 is a 4 foot long vehicle side 4-way trailer connector. It isn't exactly like the Wesbar # W787264 but it is the opposite end and the same length so it will work for you.
    view full answer...
  • How To Add 4-Way Trailer Connector On Trailer With 5 Wires
    I would be happy to help walk you through how to install a 4-way connector on your trailer. Since your trailer has two green wires going down the right side of the trailer, that tells me that one of the wires is powering your running lights. The easiest way to test which of the wires is for the running lights, connect the white ground wire and one of the green wires to a 12v battery and see what lights come on. To install a 4-way trailer connector like the # W787264 you will need...
    view full answer...
  • Solution for Connecting Vehicle With 4-Way Flat to Trailer With 4-Way Round
    There are adapters that go from a 4-round on a vehicle to a 4-flat on a trailer but not vice-versa, but we do have a simple solution for you. All you need to do is cut off your trailer's 4-round and wire in a trailer-side 4-flat, the Wesbar 4-Pole Flat Connector - 4' Long # W787264 or 8' Long # W787268. To install either you just need the Butt Connectors # 05731-5. I've added a link to an install video for you to check out as well.
    view full answer...
  • Are the Wires of the Wesbar 4-Pole Flat Connector Color Coded
    The four wires of the Wesbar 4-Pole Flat Connector # W787264 that you referenced are color coded by the standard 4-way colors. White is the ground, brown is the tail light, green is right turn and stop and yellow is left turn/stop. The wire is also stranded and not solid core. I attached an FAQ article on trailer wiring for you to check out also.
    view full answer...
  • How To Add Tail Lights To a Bike Rack
    In order to create a wiring harness for the two Thinline LED Trailer Tail Lights part # STL59RB I recommend using the Wesbar 4-Pole Flat Connector part # W787264 along with the Deka Heat Shrink Butt Connectors part # DW05744-5. The white wire on each light as well as the trailer connector will need to be run to a bare metal surface. The black wire for each light can be combined and run to the brown wire on the trailer connector. The red wire for each light can then be run to the yellow...
    view full answer...
  • What Size Wire Gauge Do 4 Pole Connectors Use
    The Hopkins Endurance Easy-Pull Harness w/ 4-Pole Flat Connector # HM38134 you referenced has 18 gauge wires for the brown (taillight), green (right turn and brake), and yellow (left turn and brake) wires. The white (ground) is a 16 gauge wire. Typically 18 or 16 gauge wire is sufficient to run trailer lights, especially when you use LEDs since they draw much less power than incandescent bulbs. For similar trailer connector that has all 16 gauge wire the Wesbar 4-Pole Flat Connector...
    view full answer...
  • Creating Adapter to Go From 7-Way Round to 4-Way Flat
    The 7-way round connector is odd as it typically means the vehicle has the stop lights and turn signals on separate circuits which is the opposite of what trailer wiring has so you'd need to come up with an adapter since there isn't one ready-made. If this is the case you can build an adapter using the part # RM-732 as a signal converter. You will need a round pin male connector, # PK11702 and then the part # W787264 for a 4-way. Basically you will be splicing the converter between...
    view full answer...
  • How to Make Adapter to Go From 7-Way of Semi Truck to 4-Way
    The problem with semi truck 7-ways is that they have the turn signals separated from the stoplights so you end up with needing a converter installed on the adapter too so that the signal matches the trailer lighting. If this is the case you can build an adapter using the part # RM-732 as a signal converter. You will need a round pin male connector, # PK11702 and then the part # W787264 for a 4-way. Basically you will be splicing the converter between these two to create the adapter. The...
    view full answer...
    Image 1 for
  • Ways to Install New 4-Pole Trailer Connector
    Four flat trailer wiring, also called 4-pole wiring, uses four wires and pins configured as shown in the linked photo of a trailer side 4-pole connector. The one pin that is different from the other three (on both trailer and vehicle side connectors) will be the ground pin and this usually has a WHITE wire that will ground to a clean bare metal spot the trailer frame with a ring terminal. The next pin is for the running light circuit and this typically uses a brown wire to activate...
    view full answer...
    Image 1 for
  • Gauge Wire Used for the Hopkins 4-Way # HM48235
    The Hopkins part # HM48235 has 16 gauge for wires. For a 4-way that has all 16 gauge wire you would want the Wesbar 4-Pole Flat Connector # W787264.
    view full answer...
  • Is there an Adapter that will Convert a 4-way Round Trailer Connector to a 4-way Flat Vehicle End
    I have checked the adapters that we currently carry, and we do not have an adapter that will fit the configuration that you specified. You could create your own adapter, and it would be composed of the Pollack # PK11410 and the Hopkins Endurance 4-way Flat Trailer connector # HM48110. You would just wire the Hopkins 4-way flat to the Pollack 4-way round connection point. This will create an adapter that will connect the 4-way round on your 1972 trailer with a 4-way flat vehicle connection...
    view full answer...
  • 4-Way Trailer Wiring Recommendation that Uses all 16 Gauge Wires
    For a 4-way that has all 16 gauge wire you would want the Wesbar 4-Pole Flat Connector # W787264. The part # HM38138 uses 18 gauge for all wires but the white that uses 16 gauge.
    view full answer...

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Info for this part was:

Employee Tyler C
Written by:
Tyler C
Employee Jeff D
Expert Research:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Laura H
Updated by:
Laura H
Employee Brian T
Updated by:
Brian T
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B

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