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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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Trailer Wiring
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 (426)
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  • Videos (2)
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Wesbar Trailer Wiring - 002402

Highlights

  • Efficient wishbone design: Eliminates the need for jumper wire between tail lights.
  • Simple wiring configuration: Color-coded wires for easy installation: white, yellow, green, brown.
  • Universal 4-Pole flat connector: Connects seamlessly to vehicle's 4-way flat socket.
  • 18" harness length: Perfect for short connections, suitable for various trailer setups.
  • 12-gauge wire: Reliable electrical conduction for safe and consistent performance.
  • Tailored for trailers: Effective for trailer end connections, enhancing road safety.

Features to know about

Efficient Light Wiring Made Simple: Wishbone Design

With the Wesbar Wishbone Wiring Harness, trailer wiring becomes a breeze thanks to its ingenious wishbone design. Forget about clumsy jumper wires, as the dual brown running light wires eliminate the need for a jumper between tail lights. This means fewer connections and a more efficient setup for your trailer’s lighting system, ensuring clarity and reliability on every trip.

Universal Fit for Versatile Applications: 4-Pole Flat Trailer Connector

Designed with a 4-pole flat trailer-end connector, this harness provides a universal solution allowing seamless connectivity between your trailer and tow vehicle. It's perfect for replacing damaged or outdated connectors, fitting snugly to the standard 4-way flat on most vehicles, making your towing setup hassle-free and straightforward!

Color-Coded for Easy Installation: Simplified Wiring Process

Color-coded wires make installation stress-free, even if you're not an expert. With clear differentiation between ground (white), left turn/stop (yellow), right turn/stop (green), and tail lights (brown), you can hook up your trailer with confidence and precision. Say goodbye to confusing installations and hello to organized wiring in no time.

Compact Yet Robust Design: 18-Inch Length for the Perfect Fit

Measuring 18 inches, this harness is compact yet offers enough length for most trailer setups without excessive slack. Its sturdy build ensures durability through various weather conditions and road adventures, providing a reliable and snug connection to your trailer's wiring system.

Flexible Solutions for Unique Wiring Needs: Works with Diverse Circuits

Whether you're tackling a custom project or replacing a failed connector on a Karavan boat trailer, this harness equips you with just what you need. By accommodating extra running light or ground wires, it offers flexibility and versatility, ensuring compatibility with a range of unique setups without complex alterations.

Long-Lasting Reliability: 1-Year Limited Warranty

The Wesbar Wishbone Wiring Harness is built to last, supported by a 1-year limited warranty that ensures peace of mind. Enjoy confidence in your trailer connections knowing that you have a product backed by a promise of quality and durability designed to meet your towing demands reliably.

Specs

Dimensions

  • Harness length: 18"

Wiring Configuration

  • White: ground wire
  • Yellow: left turn/brake light
  • Green: right turn/brake light
  • Brown: tail lights

Warranty

  • 1-Year limited warranty

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




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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:

Ratings & Reviews

4.9

426 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:

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:

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. profile picture

Phillip L.

5/22/2022

Works great no problem. Glad I made the investment.



by:

The wiring harness works well. I do not understand why it does not come with a cover for keeping rain and snow out when not in use.



by:

As always the outstanding customer service is #1. The communication is excellent as well as the timely manner you receive your order. As always a 5 star review for the team!



by:

Etrailer had exactly what I needed and it was perfect. Thanks etrailer.



by:

Not happy when online retailers advertise a product but ship a different brand. Everything I ordered could be fine but it's not as advertised. As an example, I ordered one item that was supposed to be Wesbar Im familiar with with that brand because I've had great luck with it. The item I got from E trailer was an offbrand. I could've gotten the same part cheaper at another location. Please don't show a brand and a picture of an item but send other brands. If you don't have it, tell me, and then I'll make a decision.



by:

after searching locally for the correct replacement I found etrailer on line and got just what I needed. Shipped promptly and received quickly



by:

I paid for fast shipping to get the product here Wednesday and received it on Thursday so shipping was not up to par.



by:

Product ordered working great. Good company to order from.



by:

Worked excellent and etrailer was the only place I could find it



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:

Perfect product, price and description



by:

Great products. Made redoing the wires fast and easy



by:

worked with my appacation



by:

The connector was exactly what I was looking for. Locally it was impossible to find a wishbone connector. The additional wire length is perfect, as I need to lengthen my connector for the new truck that's towing the trailer.



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:

Great product and even better customer service! Thank you.



by:

Great Customer Service



by:

Works great just what I ordered



by:

I got the exact item I needed and it’s working great! Ashley was very knowledgeable and she even called me back after I lost contact with her! Thank you!



by:

Wires are labeled for where they go !



by:

Everything was fast and efficient. Always helpful and kind!!



by:

Right part arrived and timely



by:

Got what I wanted. Cost of delivery was 3 times price of the part to get in 2 days. Need fast delivery service at low price. Old part was dragged on ground and needed replaced.



by:

easy to order and quick to ship!


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Show More Reviews

See what our Experts say about this Wesbar Trailer Wiring

  • 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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  • Replacement Wishbone 4-Way Wiring Connector for a Pontoon Trailer
    Hey Dave, thanks for reaching out! You do have a wishbone wiring setup, so what you need for a replacement is the Wesbar Wishbone Wiring Harness # 002402. You'll just connect the wires per color and I recommend doing so with the Butt Connector Kit # DW05744-5. Did the connector break down over time, or did it get damaged at some point?
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  • Wanting To Wire Up My Harley Ultra Classic To Tow, Any Recommendations?
    Hey John, If your Harley just has wires in the rear and you are looking for a plug to install to be able to hook up a trailer you could easily install something like # 002402. That is just a normal 4 flat trailer connector with 4 wires and a ground like you mentioned. The most important thing you will want to do is test wire functions on the Harley to match them with the correct wires on this harness. That will get you set up to tow most standard trailers with a 4 flat connection. What...
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  • Replacement 4-Way Trailer Connector with 5 Wires
    Hey Matt, thanks for reaching out! The correct replacement for your trailer wiring/connector is the Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector # 002402. For wiring that uses 5 wires but only has 4 pins, 2 of those wires go to the same pin and it's normally for the running lights. If you confirm what functions those wires have, you can use Butt Connectors # DW05744-5 to connect all of the wiring together. Let me know what you end up finding out!
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  • 4-Pin Round to 4-Flat Trailer Adapter Quick Disconnect Wiring Solution
    Sounds like you’ve got a 4-pin quick-disconnect (round) socket on your vehicle — is that right? If so, you can use an adapter like the Hopkins 4-Round to 4-Flat (part number # 47465) to connect your trailer’s 4-flat plug. If this isn't correct, please send me the photo of your socket and I can assist more.
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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 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.
    view full answer...
  • 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...
    view full answer...
  • Installing New 4 Way Connector on Trailer with Yellow, Green, Yellow/Brown and Green/Brown Wires
    It sounds like your trailer had a wishbone style wiring harness. A wishbone harness splits the running light circuit at the connector so you do not have to run a jumper from one side of the trailer to the other side. To replace the plug you're going to be best served by using a wishbone harness like the Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End - 18" Long # 002402- you can still use a regular 4 way, but it will be more work. Using a wishbone 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...
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  • 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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  • Replacement 4-Way Recommendation for Trailer with 7-Wires
    Sounds like your 4-way is a wishbone setup where the circuits that run to both sides of the trailer that are the same have two wires instead of just one. This is probably the ground and the running lights but it's hard to say for sure. Basically you would need to look at how the wires run to the back of the 4-way to determine which circuits are doubled for each pin. We have the replacement 4-way part # 002402 which has just the running light circuit wishboned which would work great. For...
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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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  • Replacement 4-way Connector For 2018 Shorelandr Boat Trailer With Two Brown and White Wires
    I am happy to help! To replace the 4-way connector on your 2018 Shoreland'r Boat trailer I recommend the Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End - 18" Long # 002402. The reason your harness has 2 brown wires is one runs down each side of the trailer, instead of having to run a jumper wire between the two sides. It is a little odd that it has two grounds (white wire) but you can connect them together and then connect them to the white wire on the...
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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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  • Recommended 4-way To 5-way Adapter For Motorcycle Towing Motorcycle Trailer
    Typically the blue wire on a 5-way connector is for reverse lights. If you do not need the reverse lights you can actually just plug the 4-way connector directly into the 5-way connector. If you need the reverse lights to work you will need a 4-way to 5-way adapter # C57187 installed on your motorcycles 4-way and will need to connect the blue wire to the reverse light wire with the included quick splice. I included a video of the # C57187 being installed for you to take a look at.
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  • How To Convert 7-way European On Trailer To US 4-way Flat Connector
    The easiest way to plug your vintage Dethleffs German camper trailer that has a 7-way European connector into the 4-way connector on your 2017 Dodge Grand Caravan is by replacing the connector on the trailer. You will need a trailer end 4-way flat connector # 002402 and a 2-wire to 3 wire converter # 118158. You will make the connections with heat shrink butt connectors # DW05744-10 following the included diagram. If you do not want to cut off the 7-way European connector on the trailer...
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  • 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 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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  • 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...
  • 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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  • 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.
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  • 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...
  • How to Make 4-Way to 12 Volt Power Outlet
    Our best solution for that would be the part # 329-GC018 which is a cigarette lighter style of 12 volt connector that you could wire to the brown and white wires of a 4-way like # 002402. The brown would go to the red and the black to the white.
    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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