Adapter 4 Pole to 6 Pole

Tow Ready Wiring - 30637

Adapter converts your 4 pole wiring on vehicle to 6 pole round connector. Additional leads for brake (blue) and power (black) can be connected to allow for electric brakes and accessories.

Recommended

Wiring Harness Mount Brackets

Tow Ready # 20320

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Ask the Experts about this Tow Ready Wiring
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• Installation of Wire Connection on Vehicle to Recharge or Power Trailer
  
• You will need to run a fused wire, item # 31827, from the vehicle battery to the vehicle trailer connector that matches the trailer connector on the trailer that you want to charge the battery on and power. You can select the proper vehicle end to connect to your trailer from our (see link) trailer connectors page. If you have the 6-way round connector the black, center pole, wire will run to the power wire you install.
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• Availability of a 6-Round to 4-Flat or 7-Way to 4-Flat Trailer Connector for an RV
  
• It sounds like what you want to do is to pull a trailer with a 4-Flat with an RV that has a 6-Round. 6-round connectors are not too common on RVs, but more common on horse trailers. Double check to see if you actually have a 7-Way blade style connector. A lot of connectors look alike. I have included a link to a Trailer Wiring FAQ article that, in part, discusses the various style connectors starting about 1/4 of the way down the page. To convert a 6-Round to a 4-Flat, you can use a simple pl
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• 6 Prong Square on Jayco Trailer to 4 Prong Flat Wiring Color Scheme
  
• The wiring colors codes for the Jayco style 6-Way connector are not readily available. I can tell you that the following colors have worked out on a Jayco trailer before. Yellow - Not determined, Green - tail light, White - ground, Red - left turn and brake, Black - not determined and Brown -right turn and brake The leftover yellow and black wires would be used for auxillary power and backup lighting or trailer brake power, whichever is needed. You would need to use a circuit tester, item
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• Should Adapter 4 Pole to 6 Pole, # 30637 Have Constant 12 Volt Power Even With the Key Off
  
• I spoke with my contact at Tow Ready, and he stated that the Adapter 4 Pole to 6 Pole, # 30637, will have power at the 12 volt pin all the time if it is connected directly to the vehicle battery. This will not put a drain on the battery unless something is connected to the harness drawing power.
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• Adapter for a 4-Way Flat Vehicle End Trailer Connector to 6-Way Round Pin Trailer Connector
  
• If you only want to use the basic lighting functions provided by the 4-Way (left/right turn, brake, and running lights) then all you will need to do is plug the 4-Way end of the Adapter 4 pole top 6 pole, # 30637, into your vehicle 4-Way. The trailer 6-Way will then plug into the 6-Way receptacle on the adapter. You will also need to ground the white wire on the adapter to the vehicle frame at a clean and corrosion free metal surface. The remaining wires (blue for electric brakes and black for 1
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• Why Does my 4-Way Connector Have 2 Wires Ran to One Prong for the Tail Light Circuit
  
• It sounds like you need an Optronics wishbone wiring harness, part # A35W42B. This 4-Way has a prong that has two wires that come out of it. The reason some 4-Ways have two wires coming out of one port is because that prong represents the tail light functions for both sides of the trailer. So one wire would run to the tail lights on one side of the trailer, and the other wire would run to the other. I attached a video below that shows this product being installed onto a trailer and explain
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• Adapter 4 Pole to 6 Pole # 30637 Recommendation and Wiring
  
• It sounds like your trailer has a 6-way round connector and your truck has a 4-way flat connector. You could use an Adapter 4 Pole to 6 Pole, part # 30637, like what you referenced. If all you needed was tail light functions on your trailer you would simply mount the 6-way round of this adapter on your vehicle and secure the other wires up and out of the way, and then plug the 4-way from your truck into the 4-way of this adapter and then plug your trailer into the 6-way and you would be good
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• Availability of Adapter For Connecting 6-Way Round on Trailer to 4-Way Flat on Tow Vehicle
  
• I would recommend to use the Tow Ready 4-Way to 6-Way Adapter, part # 30637. If you only want to use the basic lighting functions provided by the 4-Way (left/right turn, brake, and running lights) then all you will need to do is plug the 4-Way end of the # 30637 adapter, into the vehicle 4-Way. The trailer 6-Way will then plug into the 6-Way receptacle on the adapter. You will also need to ground the white wire on the adapter to the vehicle frame at a clean and corrosion free metal surface. T
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• Adapting a 7-Way Trailer Connector on a 2010 Chevy Suburban to a 6-Way Square Jayco Connector
  
• I do have a solution for you but it a little unorthodox. First, you will need to use a 7-Way to 4-Way adapter like # PK12716. With the 7-Way now converter down to a 4-way, you can use the 4-Way to 6-Way Jayco adapter, # 30104. To make it more like one large adapter, you can use dielectric grease, # 11755, between the 4-Way connections on the 2 adapters and then use electrical tape to wrap up where the two are joined at the 4-Ways. This will only give you the basic lighting functions on th
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• Adapter to Connect 4-Way on Vehicle to 6-Way Round on Trailer
  
• A vehicle end wiring harness using a 4-Way Flat connector should have 3 female plugs and 1 male pin. A matching 4-Way Flat trailer connector would have 3 male pins and 1 female plug like on the Tow Ready Adapter 4-Way Flat to 6-Way Round, part # 30637. The # 30637 adapter is designed to plug into a 4-Way Flat on a vehicle and the 6-Way Round on the other end, with the male pins, will plug into a 6-Way Round on the trailer that has 6 female plugs. I am including a link to a FAQ page on tra
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• Troubleshooting No Turn or Brake Lights on a Cargo Trailer
  
• The brown wire that is running to both the left and right side of your trailer is the tail light circuit. The green wire that is on the right side is the stop/turn circuit and the yellow wire on the left is the stop/turn for that light assembly. The best place to start when troubleshooting wiring problems is to start at the trailer connector on your tow vehicle and test the poles of the connector to confirm the problem is on the trailer or the vehicle. Check out the video I attached that show
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• Trailer Right Turn and Brake Lights Not Working When Connected to 1997 Ford Explorer
  
• Since you have indicated that the right turn and stop light circuits work on the vehicle the next step is to test the connector on the vehicle side using a circuit tester like # 3808. If the circuit is working there as well then the problem is on the trailer. If it is not then the problem is on the vehicle. If it is not working on vehicle connector and the connector is factory, then you may have some relays or fuses blown or missing that need to be replaced. Check your owners manual for the
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• Wiring Up a Harbor Freight 4-Way Trailer Connector and Trailer Lights
  
• Lets start with the trailer connector. I can tell you what the functions are so it will be easy to connect to the lights once we determine their functions. On a 4-Way, you will have one pin that is covered. That is the ground. Right next to it is the running light pin. Then the left turn/brake light pin. And the last pin is right turn and brake lights. Now, on the lights, since the common wire on both sides is red, I am inclined to believe this is the running light wire. What you will do
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• Trailer Wiring Has 5-Wires White, Yellow, Green, Yellow/Brown, and Green/Brown
  
• On a 4-Way flat trailer wiring harness, white is the ground, brown is running lights, yellow is left turn signal and green is right turn signal. It sounds like your trailer has a wishbone 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. On a wishbone 4-Way connector the white wire is ground, yellow is left turn signal, yellow/brown is left side running lights, green is right turn
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• Parts Included with the 4 Pole to 6 Pole Adapter 30637
  
• When ordering the 4-Pole to 6-Pole Adapter, part # 30637, you will receive everything you see in the picture on our website. It includes the adapter, the new 6-way, and two butt connectors on the ends of the brake and power wires to use when connecting to your pre-run wires.
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• Wiring a 4-Way to a 6-Way on a 2004 Tacoma Pickup
  
• When you plug in your properly functioning 4-way connector to the adapter the yellow, green, brown and white wires should function properly through the 6-way connector. You will then need to connect the black 12 volt power and the blue trailer brake wires. The black wire is the battery lead and is ran to the positive terminal of the battery for charging the battery of the trailer. The blue wire is connected to the blue wire supplying power to the brakes from the brake controller if your trailer
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