Pollak Black Plastic, 7-Pole, RV-Style Trailer Socket - Vehicle End

Pollak Wiring - PK12707

Establish a secure connection between your towing vehicle and trailer with this 7-pole, RV-style socket. Black plastic socket has non-corroding, shock-resistant interior design that eliminates shorting out and is color coded to RVI standards.

Features:

• Standard, 7-pole, RV-style socket connects tow vehicle to trailer
• Black plastic construction
  • Eliminates rusting
  • Enhances appearance
  • Prevents difficulty in plug removal
• Non-corroding, shock-resistant interior design
  • Terminal reinforcer dams eliminate shorting out
    • Prevent contact from spreading
  • Center pins accepts up to 8-gauge wire
  • Vinyl inserts keep out dirt and moisture
• Safety latch
  • Ensures connector is plugged into socket
• Color-coded to RVI standards
• Spring-loaded lid with stainless steel spring
  • Secures trailer-end connector with built-in catch

Specs:

• Wiring configuration:
  • Color - circuit - recommended wire gauge:
    • White - Ground - 10 gauge
    • Blue - Electric Brake - 12 gauge
    • Green - Tail, License and Running Lights - 14 gauge
    • Black - Battery Charge - 10 gauge
    • Red - Stop and Left-Hand Turn Signal - 14 gauge
    • Brown - Stop and Right-Hand Turn Signal - 14 gauge
    • Yellow - Auxiliary Circuit - 14 gauge
• 1-Year limited warranty

12-707 Pollak Black Plastic, 7-Way, RV-Style Trailer Socket - Vehicle End
Replaces 30300

Video of Pollak Black Plastic, 7-Pole, RV-Style Trailer Socket - Vehicle End

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

Pollak Black Plastic, 7-Pole, RV-Style Trailer Socket , Vehicle End Review

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Ask the Experts about this Pollak Wiring
Do you have a question about this Wiring?

• How Do I Clean the Terminals in a 7-Way Connector
  
• At this time we do not have a brush or other device specifically for cleaning the terminals in your 7-way connector. I have cleaned the connectors before and it can be quite a task with the limited space inside the connectors. You will need to be careful, especially on the vehicle side, not to short out two terminals and blow fuses or worse. Using a metal wire brush or liquid on the vehicle side would not be recommended. You could do so if you made sure all power is cut off at the connector and
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• How Does the Pollak 7-Way Vehicle End Connector Come Apart
  
• Most of the 7-way connectors, like the 7-Way Plastic Car End, item # PK12707, come apart by removing the two screws on the sides of the connector and then loosening a very small set screw at the back of the connector. Once this set screw is loosened or removed the connector should pull straight apart.
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• Wiring Chart or Instructions fo Replacing Factory Ford 7-Way with Pollak 7-Way Trailer Connector
  
• If your truck came with a 7-Way from the factory, you should be able to use a 7-Way like part # 30955 and not have to do any hard-wiring. We do have a diagram and wiring chart for 7-Way connectors, but the colors on the diagram may not match the wire colors on the Expedition, so make sure you use a circuit tester like part # 3808 to make sure you have the proper circuits. I have added a link below to the page that has the 7-Way wiring diagram, about half-way down the page.
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• Installing a Brake Controller from Scratch on a 1998 Jeep Cherokee
  
• The taillights on your 1998 Jeep Cherokee will require a converter in order to function properly with the trailer lights. So since you will need a converter, I recommend first installing the Tow Ready Custom Fit Vehicle Wiring, # 118354, that has a converter built in. It will also make the installation process a lot easier because it is 4 less wires you will need to hardwire. This harness is a T-one style connector that plugs in line with your Cherokee taillights. I have included a link to the i
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• How to Wire a 7-Way RV Trailer Connector # PK12707 on a 1996 Chevy S-10
  
• The Pollak Black Plastic, 7-Pole, RV-Style Trailer Socket - Vehicle End, # PK12707, and other similar connectors, can be wired differently depending on the application, but there is a common method. If you are looking at the back of the PK12707, where the wires attach to the terminals: 1 oclock position = brown wire, tail and running lights 3 oclock position = yellow wire, left turn and brake 5 oclock position = white wire, ground 7 oclock position = blue wire, brake controller output 9
  view full answer...


• Converting a 7-Way Round Pin Trailer Connector with a 7-Way Blade Connector on a 1992 Ford F-250
  
• In order to install a 7-Way blade style trailer connector on your 1992 Ford F-250, you will first need to test the wires by function on your existing 7-Way Round connector using a circuit tester like the Quickee # 3808. The wire colors not matching is a common problem which is why it is necessary to test the wires themselves for function in order to pin the Pollak Black Plastic, 7-Pole, RV-Style Trailer Socket - Vehicle End, # PK12707, correctly. Using the circuit tester, find the wire that p
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• What Is The Correct Way To Wire Pollak 7-Way Connector # PK12707
  
• It sounds like the previous owner had just wired the connector the wrong way. Also, in the instructions for Pollak connectors, they use a different color to label the wire functions. Perhaps that caused confusion on the initial installation. When looking at the front side of the connector, the ground pin would be in the 7 oclock position as you stated. The reverse pin would be the center pin. I would recommend using a circuit tester like part # 3808 to test the wire functions and make sure
  view full answer...


• How to Determine Wiring Functions when Trailer Wiring and Vehicle Wiring Use Different Colors
  
• On a 7-Way RV style plug like # PK12707, the functions and positions should be the same for most any manufacturer. A 7-Way round pole plug will be a little different than a blade style. But the reason that you may come across two of the same type that use different color wiring and functions is because there is no agreed upon configuration that all companies abide by. If colors and pin position are different and you need to do some wiring, you will need to use a circuit tester like # 3808 to
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• What Gauge Wire to Use When Wiring a Trailer for Brakes
  
• It is recommended that you use 10 gauge wire from the 7-way back to the brake assemblies on your trailer. Anything smaller than that and you might have problems. I would recommend you replace the wiring on your trailer to 10 Gauge Blue Primary Wire # 10-1-1. I attached an FAQ on trailer wiring for you to check out. I also attached a video that shows a trailer being wired for brakes for you to check out. Fast forward to the 4:53 mark to see the part about wiring.
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• Trailer Lights Malfunctioning On a Dove Tail Trailer When the Brakes Are Activated
  
• It sounds like you will need to diagnose the problem with a circuit tester, item # 3808 if needed, and some physical inspection. I have linked some videos showing how to diagnose wiring problems. I would start with the trailer connectors. Start on the truck side and check the inside of the connector front and back for corrosion or any loose wires that may be causing the issue. Specifically, check to be sure the taillight circuit terminal, location # 3 in a 7-Way RV connector, does not have th
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• How To Charge Trailer Battery From a Chevrolet Silverado With a 7-Way Connector
  
• To keep the trailer battery charged you will need to run a 10 gauge power wire like the, part # 10-1-1, from the 12 volt power pin (# 4 terminal at 11:00 position) on your trailers 7-way connector, to the positive terminal on the trailer battery. Now when the trailer is connected and you are towing, the tow vehicle will provide a maintenance charge to the trailer battery. It will not charge the battery from a discharged state. You will want to test the # 4 terminal at the 1:00 position on you
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• What is the Diameter of the Pollak Black Plastic, 7-Pole, RV-Style Trailer Socket
  
• I went out to the warehouse and pulled a Pollak Black Plastic, 7-Pole, RV-Style Trailer Socket, # PK12707, to take some measurements. The diameter of the socket at the widest point it just under 2 inches (1.956 inches) so it will fit into a 2 inch diameter hole. The length from the back of the mounting surface to the back end of the socket is 3-5/16 inches long. It would need to be secured using 4 screws. Side to side, the holes are 2-1/4 inches apart on center. Top to bottom they are1-1/2 i
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• Wiring Diagram for 7-Pole RV Trailer Connectors For a 1995 Ford Windstar GL Van
  
• Yes, we have a wiring diagram for the 7-Pole, RV-Style Trailer Socket, # PK12707. I have added a photo of the wiring diagram for the vehicle side and trailer side connector for you to review and I have added a link to our trailer wiring diagrams page which has more information about trailer connector wiring diagrams for you. If you are looking to add a 7-Way RV connector to your 1995 Ford Windstar, we have all of the wiring you will need. You would start with a working 4-Way connector, # 1183
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• How to Wire Back-Up and 12 Volt Light Wiring when Installing A 7-Way Connector on a 1999 Dodge Van
  
• Installation of a brake controller and 7-Way wiring connector on a 1999 Dodge Van is pretty straight forward. You will first need a working 4-Way connector. If you do not already have one the T-One wiring harness, # 118368, is the correct harness for your van. You would then need a brake controller installation kit, # ETBC7. This kit includes the 7-Way trailer connector, wiring, circuit breakers and other hardware needed to complete a professional looking installation. We also have detailed i
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• Testing for 12 Volt Power for Interior Lighting in an Enclosed Trailer
  
• You will need to do some testing to figure out exactly where the problem is with the 12 volt power for your trailers interior lighting. The first thing I would do is check to see if the interior lights run off of the taillight circuit. Turn on the headlights on the vehicle then try the trailer interior lights, just to be sure this is not the problem. If the interior lights are not attached to the tail light circuit, use a circuit tester, # 3808 if needed, and start out by checking the vehicle
  view full answer...


• Electric Brake Terminal on 7-Way Connector is Showing Constant 12 Volts Under All Conditions
  
• On some vehicles, the key has to be on for voltage to go back to the trailer connector. On others, it does not. An electric brake controller will always send back some minimal voltage to the trailer connector. This is how it senses if there is a trailer connected. But it should not be showing 12 volts all of the time. If it is on the brake pin, 5 oclock position if looking at the face of the 7-Way, then that indicates that there is a short to the brake wire. If the 12 volt power is showing o
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• How to Convert the 7-Way RV Connector on a Ford Truck For Towing a Trailer with 4-Way Flat Wiring
  
• You have two options for towing your trailer with a 4-Way flat connector. The easiest option is to use an adapter that allows you to plug the 4-Way connector into it and then plug the adapter into the 7-Way RV style trailer connector on your truck. The Pollak 7 Pole to 4 Pole Connector Adapter, # PK12716, would work great for this application. The second option would be to use a 4-Way Hardwire Kit, # 18252, and hard wire a 4-Way connector under the vehicle. Use the included circuit tester
  view full answer...


• Which Terminal On a Trailer Connector is Used to Maintain a Charge on the Trailer Battery
  
• If you have a 6-Way connector, the center pin is the 12 volt power and is usually the pin that would be used for charging a trailer battery. If you have a 7-Way connector, the #4 terminal at the 1 oclock position is the 12 volt power terminal that would be used for charging. I am including a link to a FAQ page on wiring that will show the connectors and the functions of each terminal. When your trailer battery is connected to either of these terminals it will allow you to maintain a charge
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• Equipping 1994 Chevy Suburban with 7-Way Trailer Connector and Brake Controller
  
• To convert the 4-pole flat trailer connector on your Suburban to a 7-way, you will need an adapter like part # 37185. Assuming that the brakes on the trailer are electric, you will also need a brake controller, like the Tekonsha Prodigy P2, part # 90885. You will also need a brake controller installation kit, part # ETBC7. The install kit will include everything needed to install a brake controller, even the adapter I mentioned above. I will link you to the instructions for the Brake Cont
  view full answer...


• Installation of 7-Way Connector on a 1997 Ford F-350
  
• I am including a link to a FAQ page on trailer wiring. It will show the 7-Way trailer connector functions and the 7-Way vehicle connector functions. At the bottom of the page is a chart that will list the wire colors by vehicle manufacturer. This chart is only a guideline because the vehicle manufacturers can change the wire colors over the years. I would recommend to use a circuit tester like the Quickee Tester, part # 3808, and test the wires for function on your 1997 Ford F-350. If you
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