4-Way Flat Trailer Connector w/ 60" Harness and Wire Taps

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• Trailer Connector Recommendation for 2018 Toyota Highlander
  The correct connector will depend on the trailer you're planning on towing. If the trailer has a simple 4-pole trailer connecter, I'd recommend the Tekonsha # 118449. The connector/harness comes in 2 parts, the converter box and the harness with the 4-pole connector. Both pieces would install into the factory connetors located under the rear hatch threshold as shown in the provide photo. The converter plugs into the 10 pin socket closer to the driver's side and the trailer connector itself...
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• Trailer Wiring Harness for 2022 Ford Bronco Sport
  We do indeed offer a 4-pole trailer wiring harness for your 2022 Ford Bronco Sport. I'd recommend the Tekonsha T-One harness, part # TK46FR. If you click the provided link, you can see an installation video.
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• Adapter Recommendation for an RV with Separate Wiring to Tow Combined Trailer Wiring
  We have exactly what you need. This is a fairly common situation as most RV's are wired for separate taillights and most trailers are wired for combined trailer wiring circuits. For that you will want the Roadmaster Brite-Lite Converter # RM-732 and 4-way like part # 18002. First you will need to cut off the 4-way on your RV. Next, you will need to wire up the # RM-732 as follows. Green of the motorhome runs to the white of the converter. Red runs to red. Blue from motorhome runs...
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• Easy To Install Brake Controller for 2021 Toyota Highlander with 7-Way Adapter
  You do need a brake controller to control the brakes of our 2021 Coachmen Apex Nano. For an easy install and a great performing brake controller the Curt Echo Mobile part # C51180 would be a really great option. These controllers are perfectly safe to use and worth mentioning is that if for some reason your phone lost Bluetooth connection to it the last settings used would simply take over seamlessly until a connection was reestablish. Since typically you set the controller and leave it...
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• Installing Tekonsha Prodigy RF on 2001 Fleetwood Bounder Motorhome
  You would begin by installing a 7-way connector at the rear of the coach. How this is done will depend on whether you already have a functional 4-pole connector. If you do, you can simply use an adapter like part # 37185. The adapter would plug into your existing 4-pole, with the white wire grounded to the frame and the black wire extended with a length of 10 gauge wire like part # 10-1-1 and ran to the positive battery terminal via a 40 amp inline circuit breaker like part # 9510. The...
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• Troubleshooting Left Turn/Stop and Running Light Circuit of Trailer Wiring Not Working
  Have you tried cleaning all of the pins of the trailer wiring connectors with sandpaper? In almost every trailer wiring issue like what you described this takes care of the problem. I also attached a help article on trailer wiring troubleshooting for you to check out as well.
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• Trailer Wiring Harness Recommended for 2022 Toyota Tacoma
  For a 4-pole trailer wiring harness, I'd recommend the Curt # C56349 which would plug inline between the vehicle's taillight wiring harnesses and the taillight assemblies. You can also use a mounting bracket which would consist of both part # 18140 and # 18144.
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• Recommended Brake Controller For A 2022 Motorhome On A Ford F-53 Chassis
  Hi Kurt, To install a trailer brake controller in your motorhome on an F-53 chassis you'll first need to check the rear to see if you have a 4-pole or 7-pole trailer connector. If you don't already have a connector at all then you'll start by splicing in a 4-pole wire harness # 18002 into your factory tail light wiring to get the light signals. From there you'll need the # ETBC7 to transition over to a 7-way connector. The 4-pole connector you install will connect to the 4-pole connector...
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• How To Wire In A 7-Way Trailer Connector On A 2007 Ford E-450 Cutaway With No Existing Wiring
  Since you don't have a tow harness easily available you'll need to first install a 4-pole connector like # 18002. The brown wire will tie into your E-450's running light circuit, yellow will tie into the left turn, green will tie into the right turn, and white will need to be mounted to an unpainted surface on the vehicle's frame for a proper ground. From there you'll be able to install the a 7-Way connector like # 37185. If you want to run the 12 volt power wire to the 7-Way connector...
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• Wiring 1987 Dodge Dakota for Towing
  The brown wire on the trailer connector feeds the running light circuit on the trailer. Use a circuit tester like part # PTW2993 to probe the circuits that feed the taillight assembly. Once you find the circuit that shows current while the headlights are on, tap the brown wire into that circuit. We have a video that shows how to connect a basic 4-pole connector. To see the video, click on the provided link. I have also linked you to our FAQ page on trailer wiring basics.
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• How to Make an Adapter to Go From European 7-Way to American 4-Way
  Basically there is no easy way to convert the European 7-Way to a US 4-Way. We do not carry any kind of adapter that you could use. You are left with 2 options. First, you would install a separate wiring harness which would be the easiest. Or, you could attempt to fabricate an adapter. You would need to use a converter, # RM-732. The red wire on the input side would attach to the brake light wire on the vehicle wiring. The white wire grounds to the frame. The yellow wire will attach to...
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• Trailer Brake Lights Not Working After Installing New 7-Way on 2003 Dodge Durango
  If the brake lights are not working but the turn signals are then you may have a blown stop light or CHMSL fuse on your 2003 Dodge Durango. Check the owner's manual for the fuse locations and for tow package fuses to check to see if any are blown. The tow package wiring on the Durango is already converter so the tail light wiring won't have anything to do with the trailer connector wiring. But if you really wanted to you could use # 118334 that plugs in line with the tail light wiring...
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• Converter For Motorcycle/Trike With 6-WAy Separate Lighting & Trailer With Combined Lighting
  Ok, we can help you out here to get all of the functions working; there isn't an adapter available that is going to do this since your trike has separate lighting and your camper trailer has combined. What you will need is a converter for your trike, and you'll need to cut off the 6-way and wire in a 4-way; here are the parts: - Roadmaster Brite-Lite Wiring Converter # RM-732 - 4-Pole 60" Long Vehicle End # 18002 - Cordless Circuit Tester # PTW2979 You'll need the circuit tester to...
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• Is Hopkins Coiled Adapter 7-Way To 5-Way And 4-Way Flat, # HM47025, Available In 5 Foot Length
  The Hopkins Heavy-Duty Trailer Coiled Wire Adapter 7-Way to 5-Way and 4-Way Flat, # HM47025, is only available in a 3 feet length. I have the RoadMaster 7-Wire to 6-Wire Flexo-Coil Kit, # RM-146-7, that is 8 feet long, but you would need to remove the 6-pole plug and attach the Hopkins Wiring Harness with 5-Pole Flat Trailer Connector - Vehicle End - 5' Long Item # HM37908, to give you a 5-Flat vehicle end or the Tow Ready 4-Flat Vehicle End Harness, # 18002, to give you a 4-Flat vehicle...
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• How to Wire Up Motorcycle with Separate Wiring to Tow a Trailer with Combined Wiring
  The issue is that you have separate tail lights on your motorcycle and combined wiring on your trailer. Separate means your brake lights are on separate bulbs as your turn signals. In order to get them to work together you are going to need to use a tail light converter to install a 4-way on your motorcycle. For that you will want the Roadmaster Brite-Lite Converter # RM-732 and 4-way like part # 18002. First you will need to cut off the 5-way on your motorcycle. Next, you will need to...
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• How To Wire Replacement Vehicle 7-Way Trailer Connector Socket
  It looks like you're replacing the 7-way on a vehicle. The best practice is to wire a replacement trailer connector like # PK12-707E for the socket only or # PK11898 if you'd like a socket with a quick disconnect pigtail by function and not wire color. If you go with the socket only, the brown wire typically carried the running light circuit, and would attach to the terminal in the 1:00 position when looking at the back of the connector. The left turn/stop lamp is usually carried by the...
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• Troubleshooting 4-Pole Flat Trailer Connector on 2005 Ford Explorer Sport Trac
  For the 4-way, I would recommend using a circuit tester like part # PTW2993 and testing the wires before they reach the connector. This will rule out the connector itself as being bad. If the 4-pole connector is an aftermarket addition, trace each wire leading from the connector to ensure that they are still connected. If the trailer connector is factory installed, it might be a blown fuse. The fuses that protect the towing circuits are usually located under the hood, it is possible you...
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• Adding a 4-Way Trailer Wiring Harness to a 2009 Lexus RX 350 without Factory Tow Package
  Since your 2009 Lexus RX 350 does not have the factory tow package there is actually an easier solution to adding a 4-Way flat connector. You can use T-One harness # 118478. It plugs in line with the vehicle tail light wiring and requires a direct connection to the vehicle battery to power the trailer lights and protect the vehicle electrical system. I linked a video showing how it installs. Harness # 18002 would not work on a model without the factory tow package. The reason is that with...
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• Right Turn Signal on Trailer Towed by 2004 Chevy Trailblazer Not Functioning
  On a 6-year-old vehicle, there might be a corrosion issue on the trailer connector. Can you see any green corrosion on any of the pins in the connector? If so, the corrosion might have spread to the interior of the connector preventing the signal from getting through to the pin. As a first step, use a circuit tester like part # PTW2993 and test the wire for the right directional circuit entering the 7-way connector at the rear (as the right turn indicator is activated). This will rule out...
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• Towing Trailer with 4-Pole Connector with 2001 Land Rover Discovery with 7-Way
  If your Discover has the 7-way connector that uses the round pins like part # PK11720, we do not offer a pre-made adapter, but one can be easily constructed using a 4-pole vehicle end connector like part # 18002 and a 7-way round pin trailer end connector, part # PK11700. The 4-pole would be wired to the 7-way round pin as shown in the diagram I made for you. If your Discovery has the 7-way with the blade-style pins like part # PK11893, an adapter is available, part # HM47365.
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• Troubleshooting No Stop or Turn Signals on an Enclosed Trailer With a New 7-Way Connector
  The main culprit for trailer light failure after a new installation is a poor ground connection. Since you recently had a new 7-pin connector installed on your trailer, I would make sure that the ground wire is attached to a clean, bare metal surface on the trailer frame. I would also make sure the lights are grounded properly. If the ground connections look fine, you will want to test the tail light circuits themselves using a circuit tester like part # PTW2979. First, test the 7-pin...
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• Testing Wiring on a 2007 Chevy Silverado to Install a Tailgate Light Bar
  The 2007 Chevy Silverado should have trailer wiring already installed on it you could tap into but if there is no connector present you would just use # HM40975 and install it like in the video I have linked. To determine the wire function on existing wiring you would use a circuit tester like # PTW2979. You can then probe each wire while someone runs through the various light functions to determine the wire functions. Testing is a must because manufacturers can use any color wire they want.
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• Brake Light Fuse Keeps Blowing After Installing a Trailer Wiring Harness
  What you are describing is a classic short circuit. Two wires touching or a wiring touching bare metal, a wire attached to the wrong location, and even corrosion can cause over draw on the circuit and blow that fuse. If it were to happen only when connected to a trailer then the short would be on the trailer side. You would have to check the trailer connectors to make sure they are clean and free of corrosion, check the wiring for any pinched, frayed, or otherwise damaged wires, and make...
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• No Power to my Trailer Lights on my 1999 Chevrolet Express Van
  Yes the converter box or wiring harness like the 4-Pole 60" Long Vehicle End part # 18002 needs to be grounded to complete the circuit and provide ground between the source of power and the trailer.
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