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Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End - 18" Long
Wesbar

Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End - 18" Long

Part Number: 002402
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$13.76
Retail:$19.47
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Wesbar Trailer Connectors - 002402
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Wire your trailer with this universal, splice-in wiring harness so that you can connect the trailer's wiring to your vehicle's during towing. Wishbone design removes need for a jumper wire between tail lights. Great Prices for the best trailer wiring from Wesbar. Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End - 18" Long part number 002402 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (368)
  • Q & A (0)
  • Videos (2)
  • Photos

Wesbar Trailer Wiring - 002402

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

Wire your trailer with this universal, splice-in wiring harness so that you can connect the trailer's wiring to your vehicle's during towing. Wishbone design removes need for a jumper wire between tail lights.


Features:

  • 4-Pole flat trailer-end connector plugs into the 4-way flat on your tow vehicle
  • 2 Tail light wires of wishbone-style harness make wiring your trailer more efficient
    • One tail light wire (brown) is bundled with left turn and brake wire (yellow), and one is bundled with right turn and brake wire (green)
  • Color-coded wires allow for simple hardwiring to existing trailer connections


Specs:

  • Harness length: 18"
  • Wiring configuration
    • White: ground wire
    • Yellow: left turn/brake light
    • Green: right turn/brake light
    • Brown - tail lights
  • 1-Year limited warranty


002402 Wesbar 4-Pole Flat Trailer End Connector - Wishbone Harness - Trailer End - 18" Long





Video of Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End - 18" Long

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




Video Transcript for Comprehensive Review: Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector

Speaker 1: Today we're taking a look at the Wesbar four-pole flat connector. This connector provides simple efficient method for rewiring your trailer, with a four-way flat trailer end connector.So, this would hardwire into your trailer's wiring, and then it would provide the plug, which would plug into the tow vehicle to send the signals back to the trailer.It's a nice design. When it comes to the wiring, you actually have two brown wires on the unit. So, you have a singular white wire, and then you have two brown. One brown runs with the green, the other brown runs with the yellow. So, this gives it the wishbone design.

That way you can run your stop, and turn, and tail signals down each side of your trailer.The connector has a easy grip design on the sides, and it's easy to identify, because the wires are labeled. So, your white wire's your ground wire, and then on the actual brown and green wire, the green says right turn, so that would be right turn and brake, and then brown is taillights, and then yellow is your left turn and brake, or driver's side, and then brown that runs with that is for the taillights.That's gonna do it for today's look at the Wesbar four-pole flat connector.

Customer Satisfaction Score:


Customer Reviews

Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End - 18" Long - 002402

Average Customer Rating:  4.9 out of 5 stars   (368 Customer Reviews)

Wire your trailer with this universal, splice-in wiring harness so that you can connect the trailer's wiring to your vehicle's during towing. Wishbone design removes need for a jumper wire between tail lights.

by:

Searched all over town for a 4 pin 5 wire pigtail for my trailer to no avail.
Ordered exactly what I needed from Etrailer.
The price was fair, delivered ahead of scheduled.
What really stood out was the service!
They kept me abreast every step of the way, with follow up. Not only will I order again, but I'll also tell friends & family it's the place to go



by:

Good quality trailer light connector. Dog chewed mine off so had to order this one. Naked ends ready for butt connector. Supe fast shipping.

Lost V.

3/11/2024

Working just fine.



by:

got it like super fast. cut rubber one off put this solid one on yesterday works just like it should all led lights work inside works also !!!



by:

Bolt connecting the driver's side tail light busted.



by:

Just what I wanted. No one had one in stock in San Bernardino Ca. I searched auto parts, trailer supply and rental yards. i found plenty of 4 pin but with 4 wire harnesses, i needed a 4 pin 5 wire hook up. Took all of 35 minutes to install in 5 steps
1. tinned wires on connector and trailer
2. soldered wires together
3. installed shrink sleeve
4. wrapped harness in protective harness
5. hooked up to vehicle ops check good.
See photos below. Thank you

Phillip L.

5/22/2022

Works great no problem. Glad I made the investment.



by:

Easy installation, harness's take a beating, good to replace every so often. Quality seems very good.



by:

E-Trailers is the best !!! Things that i need aren't available to me locally. And i can find everything for my trailers right here.
Thanks for great service.



by:

The connector worked Great! Had 5 wires as needed. The appropriate wires were linked together and colored for recognition. I connected these with the existing harness and everything worked perfect the first time.



by:

This product worked wonderfully for my double jetski trailer. Splicing this in was definitely easier than rewiring the entire trailer. Extremely fast packing as well. Ordered on Sunday night. Packed and labeled Monday morning. It was on my porch by that friday.



by:

Arrived a few days ahead of schedule and works as it should.



by:

The product was as described and shipping was fast.



by:

Very satisfied! Thank you etrailer.com you are the only company I could find to order a 4-pole wishbone 5 wire harness. Had a problem with the Post office but, Customer Service helped me out. Great service all the way around. Thanks again, D.King



by:

Very good customer support
Thank you



by:

Worked great and was actually delivered two days before it was scheduled



by:

exact fit. Great customer service fast delivery.



by:

I have a plug that was nearly broken so I looked at images to order this. Got it and put it on today. Perfect match for a 4 way flat wishbone plug.

Bruce

7/2/2023

After a year this product is still working and have no problem whatsoever. I give it 5 stars



by:

I could not find a 4 pin 5 wire harness at the local auto parts stores, this is exactly what I needed. Service was great and the harness arrived ahead of the scheduled delivery date. Thanks etrailer!!

Tom

4/26/2023

After one year of use, the wiring harness is performing exactly as I needed, thanks e-trailer.



by:

Just what I needed for my trailer appli cation

Frank

9/2/2023

The product is still working as it should. Thanks, etrailer.



by:

Everything I ordered fit Perfect and Love the video's they are very clear and makes any installation easy to do.

Michael

8/21/2023

I still love it. No issue at all. The videos for how to install are the best. Thats what made me buy your product, because it gave me the confidence to do it myself. Thanks so much for a good product,



by:

Delivery time good! Product as described. Only issue is the white wire on connector came out of plug assem.E-trailer folks are great to work with on your trailer needs.

Dean

4/26/2023

Now have connections issue with prongs making contact. Have cleaned still have issue. Lights on trailer blink going down road. Going to reorder and try one more time. I know its the connector you can twist it and lights will come on. Not a issue with trailer. GROUND is connected ????

Katrina B.

5/4/2023

Let me get you in touch with someone that can assist you with troubleshooting.


by:

Coming back from my last camping expedition I broke the wires to my trailer. Got on the web site for e trailer and ordered the part. The right part came in quickly. I’m so glad to have a site to go to in an emergency. Happy camper



by:

Exactly what I wanted. Thank you



by:

Just what I was looking for. Could not find anywhere else especially at this price. Excellent customer service. Thank you.



by:

Very satisfied



by:

Away have what I need thanks


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368
Show More Reviews

See what our Experts say about this Wesbar Trailer Wiring

  • Will a Trailer 4-Way Plug Into a Vehicle 5-Way Without Adapter
    Yes, you can plug a trailer side 4-way trailer connector part # 002402 into a vehicle side 5-way connector part # HM37908 without any adapters needed.
    view full answer...
  • What Gauge Wire Does The Westbar Wishbone Wiring Harness Use?
    The Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End - 18" Long Item # 002402 uses 12 gauge wire. I recommend Deka Heat Shrink Butt Connector - 12-10 Gauge - Nylon Insulation - Yellow - Qty 5 Item # DW05745-5
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  • Replacement Wishbone Style 4-Way Trailer End Plug
    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...
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  • Wesbar Trailer Side 4-Way Recommendation with Short Wire Leads
    The Wesbar trailer end 4-way we offer that has the shortest amount of wire lead is the part # 002402 which has an 18 inch wire lead.
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  • How to Convert a Wishbone 5-Way to a Wishbone 4-Way Trailer Connector
    It looks like you have a 5-way wishbone wiring harness. I cannot say for certain but my guess would be the that the following are true: White Wire = Ground Green/Brown = Right Running Light Yellow/Brown = Left Running Light Yellow = Left Turn/Stop Light Green = Right Turn/Stop Light Red = Reverse Light/Brake Output In order to test this you will need to apply 12 volt power to each wire and see which circuit it activates. For a 4-way wiring harness to replace this you are going to want...
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  • Replacement 4-Way for Karavan Boat Trailer with 8 Wires
    Hi Ross; you have some extra running light and ground wires on there right now which isn't uncommon. You can still use the Wesbar Wishbone Wiring Harness # 002402 you were looking at, you will simply need to tie the ground wires and the extra running light wire together when you connect it. You can go the junction box route as well using # PK52248 which may make it easier to organize everything.
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  • Why Does The Brown Wire Of The Wesbar # 002402 Get Connected To The White Wire On The Trailer
    Hey Reza, In the video it looks like the white ground wire on the trailer side of the wiring wasn't used for ground and instead used for a running light signal almost like a wishbone harness so that they wouldn't have to run a jumper wire over from the other brown wire running to one side of the tail lights. The lights are likely grounded to the frame at the light which is why Ryan didn't have to run the ground all the way back to the lights. The Wesbar # 002402 is a wishbone-style harness...
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  • How to Connect 5 Wires on Trailer to 4-Way Connector
    For your application I recommend picking up the Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector # 002402 because it has the 2 brown wires so your installation will be really simple. Just use heat shrink butt connectors like part # DW05743-5 for the standard wires and add a ring terminal like part # DW05737-1 for the ground wire. If you already have a 4-Way connector with just 4 wires then you'll combine the ends of the 2 brown wires and connect them to the running light...
    view full answer...
  • Electric Brakes And Lighting For The Roadmaster Tow Dolly RM3477
    The great benefit to using a tow dolly is that it eliminates the need for installing a base plate, installing difficult wiring, or purchasing an expensive supplemental braking system. Also the Roadmaster Tow Dolly with Electric Brakes # RM-2050-1 is fully wired for brake lights and turn signals. The Tow Dolly comes with bare wires so you would need to purchase a 4-way # 002402 or 7-way connector like # H20042 separately to match up to your tow vehicle's wiring. Included are video overviews...
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  • Trailer Wiring Connector for Trailer 4-Way Wiring That Has 8 Wires
    While we don't have a 4-way connector that has 8 wires total that run to it you can use the Wesbar Wishbone connector part # 002402 which has two wires ran for the running light circuit. You'd just need to match up the remaining circuits to this harness by running the two wires to the single wire on the connector's wiring.
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  • Replacement 4-Way for Trailer that Has 8 Wires Ran to Connector
    It really just depends on what the wires are for. Most likely you have several ground wires among the 8 as well as a couple running light circuits in there as well. You just have to run all of the wires to the correct circuits and if you have to run more than one trailer wire to a 4-way wire it will still work just fine. We have the part # 002402 which has two wires for the running light circuit. The rest of the circuits would just need to be ran together on the corresponding 4-way circuit.
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  • Replacement Trailer 4-Way Recommendation for 4-Way with 6 Wires Ran to It
    You'd need a wishbone style 4-way replacement like the Wesbar part # 002402 which you'd wire in color for color. The only wire you'd need to run down into a single wire is the white wire since you have a wishboned ground circuit as well as the Wesbar does not have that.
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    Image 1 for
  • Recommended Solution to Re-Wire 4 Way Trailer Plug with 8 Wires
    I have a solution for you, but you will need to cut off your existing plug and re-wire this to a new 4 way connector. Your current trailer plug appears to have wires for the left (yellow) and right (green) turn signal, brown wires for the running light circuits on the left and right side of the trailer (one for each side), ground wires for all of these independent of each other and a ground for the plug itself that connects to all of the other wires. I recommend using the Wesbar Wishbone...
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  • Can Trailer with Brown Yellow and Brown Green Wires Run to Standard 4-Way
    Yes you would be able to use your current trailer wiring configuration with a standard 4-way that only has 4 wires like the # HM38138 that you referenced. Basically the yellow brown and the green brown wire would wire directly to the single brown wire of the 4-way and the other colors would match and you'd be set. What you have now is a wish bone setup that just has a separate wire for the running light circuit for each side of the trailer. We have 4-ways that are setup for this with the...
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  • Recommended Trailer End 4-way Connector To Replace Incorrect End On Trailer
    It sounds like your trailer and truck both have a vehicle end 4-way connector. If this is the case you can use the Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End - 18" Long # 002402 and heat shrink butt connectors # DW05744-5 to replace the harness on your trailer. If your trailer does have the correct trailer end connector I recommend using the 7-way to 4-way adapter # HM47365 to give you the vehicle end connector you need to plug in your trailer. I...
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  • Availability of 18 inch Long Wishbone 4-Way Trailer Wiring Harness
    We have exactly what you are looking for with the Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector # 002402 which is an 18 inch long 4-way harness that has the running light circuit split off for both sides of the trailer like what you mentioned having. You'd run your brown/yellow and brown/green wires to each of the brown wires of this harness and then match the other colors by color and you'd be set. Only thing else you'll want is heat shrink butt connectors like the...
    view full answer...
  • Recommended Lights for Aluminum Cargo Carrier on a 2012 Mercedes-Benz ML550
    What I recommend installing is the Optronics LED Trailer Tail Light # STL78RB on either side of your cargo carrier. Then for your connector use the Wesbar Wishbone Wiring Harness # 002402 with the Hopkins Adapter # 47345 so it is compatible with the 7-Way on your 2012 Mercedes-Benz ML550. The wiring configuration for the Wesbar wishbone is as follows: White - ground wire Yellow - left turn/brake light Green - right turn/brake light Brown - tail lights For extra wiring use the Bonded 4...
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  • 4-Way Connector Solution for Boat Trailer that Has 8 Wires
    Sounds like your boat trailer has two wires ran to each circuit on your current 4-way which isn't uncommon. Basically one wire is ran to each side of the trailer wiring so what you would need to do is run the matching circuits from both sides of the trailer wiring to the single wire of a 4-way like the part # 002402. This is a very common way to handle the setup you have now and it will work great.
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  • Wiring for Five Trailer Wires to 4-pin Connector on Tow Vehicle
    It would seem that your tow vehicle has a typical 4 wire connector where white is ground, green is the right turn signal, yellow is left turn signal and brown is running lights. In this configuration the brown wire from the car connects to the brown wire from the trailer. Also you tell us that your trailer has five wires which are connected to a flat 4-pole connector. It appears that you have a "Wishbone" configuration where two wires for the running lights are merged together for one...
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  • Replacement 4-Way Connector for Caravan Trailer With 8 Wires
    Hi James; the old wiring probably has two connections for running lights and some additional ground wires. A connector like the # 002402 would probably be a better choice since it has five wires, two of which are for running lights. The important thing is to make sure you connect your existing wires to the corresponding functions on the new plug. I also recommend tracing the old wires back to find their function since you can't always trust the colors. Also, if you have some wires that...
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  • Replacement 4-Way Flat Trailer Connector Recommendation with 5 Wires
    To replace the 4-Way Flat connector on your utility trailer I recommend picking up the Wesbar Wishbone Wiring Harness # 002402 and then making your connections using the Heat Shrink Butt Connectors # DW05744-5. This has the 5 wires coming off of the connector and it sounds like you'll be connecting them per color. Just for reference though, here are the different functions you should find on each of those wires: Green: Right turn/brake light Yellow: Left turn/brake light Brown: Tail/running...
    view full answer...
  • Replacement 4-Way for Trailer with 5 Wires Ran to It
    It's pretty common for 4-way wiring to have a total of 5 wires ran to it as the running light circuit runs to both sides of the trailer. This is referred to as wishbone 4-way wiring. We have an 18 inch 4-way with wishbone wiring with part # 002402 which would wire right up to your trailer. Or if you want to convert to a standard 4-way type of wiring you could run both of the wires together on your trailer wiring for the running light circuit and then go to a single wire 4-way.
    view full answer...
  • Recommended Replacement 4-Pole Trailer Connector for Wishbone Type Trailer Wiring Harness
    The # 48195 would be a handy item to have around in case of emergency, but It's not a permanent fix and I wouldn't recommend using it for a 5 wire wishbone harness. The # 002402 would be a better choice but I prefer the Hopkins # HM48110 because of its larger gripping surface that makes using the connector much easier. For installation to your existing harness, you'd connect the two brown wires from the trailer harness to the brown wire on the # HM84110, then match up the yellow, green...
    view full answer...
  • Is a Longer Version of Wesbar 002402 Trailer Wiring Harness Available
    Would a 20 foot harness work for you? If so, Wesbar offers a 20 foot version as part # 002220. This is not a wishbone style harness. You'll need to run the harness down one side to the taillight and then daisy chain over to the opposing taillight. A wishbone style is also available as part # W002230. A wishbone style harness splits the running lamp circuit into two legs so you and run the left turn/brake lamp circuit and one running lamp circuit down the driver's side and the right turn/brake...
    view full answer...


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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video by:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Cole B
Installed by:
Cole B
Employee Ryan G
Installed by:
Ryan G
Employee Brian B
Written by:
Brian B
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Updated by:
Brian T
Employee Hannah L
Updated by:
Hannah L
Employee Daron K
Edited by:
Daron K

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