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Pollak Metal 7-Pole, RV-Style Trailer Socket - Vehicle End
Pollak

Pollak Metal 7-Pole, RV-Style Trailer Socket - Vehicle End

Part Number: PK12703
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Establish a secure connection between your towing vehicle and trailer with this 7-pole, RV-style socket. Metal socket has non-corroding, shock-resistant interior design that eliminates shorting out and is color coded to RVI standards. Great Prices for the best trailer wiring from Pollak. Pollak Metal 7-Pole, RV-Style Trailer Socket - Vehicle End part number PK12703 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Pollak Trailer Wiring - PK12703

  • Trailer Connectors
  • Vehicle End Connector
  • 7 Round - Blade
  • Plug Only
  • Pollak

Establish a secure connection between your towing vehicle and trailer with this 7-pole, RV-style socket. Metal 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
  • Heavily plated metal construction
    • Resistant to weather and corrosion
  • 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
  • Spring-loaded cover with stainless steel spring
  • Safety latch
    • Ensures connector is plugged into socket
  • Color-coded to RVI standards


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
  • At its widest point, the diameter of the round portion 1-7/8"
  • Mounting holes are 1-1/2" from center to center vertically and 2-3/16" from center to center horizontally
  • 1-Year limited warranty


12-703 Pollak Metal 7-Pole, RV-Style Trailer Socket - Vehicle End
Replaces 30310





Customer Satisfaction Score:


Customer Reviews

Pollak Metal 7-Pole, RV-Style Trailer Socket - Vehicle End - PK12703

Average Customer Rating:  4.9 out of 5 stars   (99 Customer Reviews)

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

by:

Finding the metal female connection can sometimes be difficult, but it is well worth it . No breaking, cracking from stress and heat expansion. I recommend these .



by:

My Toyota Tundra came from the factory with a weak plastic trailer socket that caused a "trailer disconnected warning" intermittently while towing. I replaced it with the Pollak Metal socket and haven't had a problem since. Highly recommend this part.



by:

I needed a connector for my trailer and got it over night best service ever highly recommended.



by:

Great Product! Hasn't let us down yet.



by:

great product



by:

Bought this after the cover on my plastic one broke in half so it would not hold the plug in. (It was -20° though). Solids well made piece, nothing here will break at -20°. Etrailer was the only place I could find one that is all metal. Placed the order and had it in hand in 3 days. Never let down by Etrailer.

Steven profile picture

Steven

2/7/2020

After 1 year its holding up great. No signs of rust either, Minnesota loves salting the h*ll out of the roads in the winter. I did give the inside contacts a good coat of dielectric grease And they are looking god too. Great product.



by:

The plastic plugs don’t hold up very well in the bed of the truck to plug in the 5th wheel trailer in nothing can beat the metal ones



by:

good product made of steel not plastic,made in tiawan ,better than china,would like one made in USA. maybe etrailer can find more parts made in USA i would be willing to pay more.its time to take back our country,the USA.

Bruce profile picture

Bruce

7/23/2014

good so far i need to find a steel plug for the trailer now.

RachaelH profile picture
Etrailer Expert

Rachael H.

7/24/2014

Thanks for the feedback, happy to hear you are pleased with your vehicle connection. If you need the trailer plug, that is available as Part # PK12702. It is linked above as a related part.


by:

Product is much better than the plastic version. The receptacle has a very strong spring on the lid and a hook to lock the trailer plug into it.
The plug is galvanized and not stainless how ever, so it will corrode and rust in the Wisconsin rust belt eventually. After 1 year how ever it is fine.
I bought the metal version for out custom work trucks that I build for our company. The protective lids on the plastic ones were getting broken. The metal plug is more durable and has solved that issue.



by:

Easy to install and works great. Can always rely on etrailer for great parts, fast shipping, and the best price around.

Patrick profile picture

Patrick

4/1/2019

Everything seems to be working well.



by:

Heavy duty metal not plastic



by:

I am very grateful to etrailer for always providing excellent service. Orders are received in a timely and accurate fashion. The quality of their products is superb. All items ordered function as described with no malfunctions. The trailer and vehicle wiring connectors I have ordered were a great replacement for old existing equipment that was constantly failing.
Very professional company. Very high quality products. I look forward to continued business with them.



by:

Very heavy duty connector, metal body, brass terminals, metal locking pin. We use them for construction work all day long. They will take the abuse the workers put them through.



by:

After being unhappy with plastic connectors I picked one of these up and it seems to fix all my problems with covers breaking off.



by:

JENA D i've used these plug ins for my shear that attaches to my skid loader. Were in the iron and steel business, my wife irons and i steel. I've used these plug ins for about 19 years now and have had real good luck with them.YOU got the order right and they arrived on time who do i talk to about getting YOU a raise. Thanks again Donnie



by:

Going to rewire my pickup truck trailer circuit , this is last piece I needed. This is high quality plug for my r v . Thanks



by:

Good quality product. MUCH BETTER THAN THE BLACK PLASTIC VERSION of this item.
I mounted this under the back bumper of my SUV so that it is inconspicuous from view.



by:

Works great, Very easy to install. The rubber plug in the back is the only difficult part to deal with. I Place a dab of silicone around it to make a better water proof fit.



by:

Good quality, excellent product.
The
only thing they missed IMHO is to put a rubber gasket to the cap.



by:

Used in mixed fleet applications. Reliable quality with easy installation. Metal construction seems to provide more service life.



by:

like the flush mount and compact of socket, and preferred the metal case over plastic one.



by:

This looks pretty good, again I haven't had a chance to install it yet, but I'm sure it'll work fine. Maybe I'll report back once I have it installed and working.

Paul M. profile picture

Paul M.

5/31/2020

Worked perfectly! The one on our 23 year old rig was looking a bit worn so it made sense to replace it as this was our first attempt at towing. Again, good quality and so far its still working!



by:

Still very happy with this unit I sold that truck But remove the trailer plug from It & reinstalled it on my replacement truck & still use it,
this was worth the effort.



by:

High quality that should last a long time! My only complaint was that the pin that orients the inner part was hard to get in place.



by:

Everything arrived as expected and all fit perfectly!! This is not my first purchase from etrailer, and as before, shipping was timely and all components were as they advertised them to be. I will not hesitate to order again when I need something they offer.


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Show More Reviews

See what our Experts say about this Pollak Trailer Wiring

  • What Can Be Used To Test Your Trailer Connectors For Functionality
    Hi Ken, You can use a test light # PTW2993, multimeter # PT89ZR, 7-Way to RV Socket LED Circuit Tester # C73NR, 4-pole light tester # F4CT, or any other type of tester that can read DC voltage to test your 4-pole or 7-way socket.
    view full answer...
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  • How to Make Coiled 7-Way to 7-Way Tow Bar Wiring Extension
    I have a solution for you, but surprisingly we don't offer a coiled 7-way to 7-way extension for flat towing. What you would need is to start with the part # WG54006-046 and then wire it to the part # A7WCB so that you have a coiled 8 foot long 7-way to 7-way. If you needed a socket you would need part # PK12703. For just replacement bulb and sockets you would want part # 294-0774.
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  • How to Determine Functions of Trailer Connectors
    The function of trailer connectors are often similar, as evidenced by the accompanying diagram which shows the functions of 7-ways. It really depends on how the connector is wired; that said, there is an easy way for you to determine the functions of a connector. All you need is the Hopkins Tow Doctor Trailer End Test Unit # HM50928 in order to test the trailer-side 7-way. I have also added a link to a help article on trailer wiring which I strongly recommend checking out.
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  • Brake Controller Install Recommendation for a 2013 Chevy Silverado
    For your 2013 Chevy Silverado there is brake controller wiring available under the dash. Below the steering column, there is a bundle of wires tied together with white tape, located left of the brake pedal. This bundle of wires is the tow package for the brake controller. Carefully cut the white tape binding the wires, and pull the wires down from underneath the steering column. You will use these wires to wire up the controller. There is a few connections that need to be made under the...
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  • Can You Install a 4-Way On a Trailer With 7 Wires
    The standard 4-way trailer connector contains circuits for left stop/brake lights, right stop/brake lights, running lights and a ground. If your trailer/vehicle has combined wiring i.e. brake and turn signals are on the same circuit and you only need the above lights/functions then yes you can install a 4-way trailer connector. If you are replacing a standard 7-way then you will not have any issues, just hook up the wires you need to the correct terminals and cap the others off. I have...
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  • Are Available 7-Way Connectors Wired for US Made Trailers
    The 7-Way trailer wiring sockets we have available such as the Pollak Metal # PK12703 referenced in your question do indeed feature the standard US pin configuration. I have attached an image that shows the pin locations and functions that you can use for reference. This is a 7-Way for the vehicle end. For the trailer end you will use # PK12702. Keep in mind though that the actual wire color used on both the vehicle and trailer can differ. Because of this it is always best to test the...
    view full answer...
    Image 1 for
  • 4-Way to 7-Way Adapter Recommendation for Flat Towing
    Yes, you will want to install the Adapter part # 30717 on your RV. You will plug the 4-way of your RV into the 4-way of this adapter and then the 7-way of your towed vehicle will plug right into the 7-way of the adapter.
    view full answer...
  • Metal 6-Way and 7-Way Replacement for Older Ford Truck
    Email me back with the pictures and I'll see if we can help.
    view full answer...
    Image 1 for Image 2 for
  • Wiring a Camper 7-way Connector Using the Pollak Metal 7-Pole RV-Style Socket # PK12703
    The part that you referenced above, the Pollak metal 7-pole Trailer connector # PK12703 mounts to the towing vehicle. This 7-pole, also known as a 7-way connector, supplies the trailer with signals for the following: trailer brakes, trailer reverse lights, an accessory 12V battery power, right and left turn signals, running lights, as well as ground. Yes, the black wire is a 12V power supply on the 7-way vehicle connector and it will connect the vehicle battery to the 7-way vehicle connector....
    view full answer...
    Image 1 for Image 2 for
  • Troubleshooting Parking Light Error Code on Vehicle Dash When Brakes are Applied
    Without knowing more info I'd first check to see if you have any corrosion on your trailer wiring connector. Sometimes a low draw on trailer wiring can cause a vehicle to think that there is a light bulb out. Corrosion can put a light draw on trailer wiring circuits too.
    view full answer...
  • Trailer Brake Controller Installation on a 2015 GMC Acadia
    The vehicle is indeed pre-wired, as you suspected. To get completely set up, you'll need a brake controller, the appropriate wiring harness to connect the controller to the vehicle and a trailer connector for the rear of the vehicle. All the rest of the wiring is ran, but you'll need some fuses and relays to activate the tow package wiring. For a brake controller, you can't go wrong with the Tekonsha P3, part # 90195. The P3 is one of the most user-friendly brake controllers available....
    view full answer...
  • Activating 7-Way 12 Volt Power Circuit of 2004 Chevy Express Van
    There's a connection under the hood of your 2004 Chevy Express Van that needs to be made to allow the 12 volt accessory circuit work on your 7-way. If you check out the install video and help article I attached you can see how to make these connections.
    view full answer...
  • Should There Be Continuity Between Ground and Brake Output Pin On 7-way Connector?
    You should have continuity between the 5 o'clock brake output pin and 7 o'clock ground pin in your 7-way connector with the brakes applied. I recommend turning the trailer brake controller to its max setting and having someone apply the manual override while you check for continuity. If you do not have continuity then there is either an internal issue with the controller, or one of the grounds has gone bad. Let me know what you find and I would be happy to go through some troubleshooting...
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  • Troubleshooting Trailer Running Lights-Go Out When Trailer Is Hitched
    My best advice is to try the camper on a different vehicle if at all possible and see how it behaves. If it solves the problem, you know the wiring issue is very likely somewhere in the wiring on the original vehicle. If it doesn't fit the issue, you can be fairly certain that the problem lies in the wiring on the trailer somewhere. Trying another trailer on that vehicle would also be a good idea. Typically the problem would be the exact opposite, where the lamps won't work unless the...
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  • Troubleshooting No Power To Trailer Brakes When Trailer Connected To New GM Truck
    When you hooked up to the GM trucks, did you notice if the truck said trailer connected? The towing computer on the newer GMC trucks is kind of finicky and if it did not recognize the trailer, or the trailer was not setup in the system it will not send power to the trailer brakes. If you were getting the no trailer connected message you will need to use the 7-Way Trailer Adapter # C57003 which has load resistors and will help the computer detect the trailer. If the trailer was not setup...
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  • Recommended Trailer Wiring and Brake Controller for 2004 Chevy 2500
    It sounds like you are wanting to add a 4-way to your factory 7-way on your 2004 Silverado. There are a couple of options to do that. You can choose from the following based on your preferences in appearance: 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket # HM40975 Reese Multi-Plug Wiring Harness for Factory Tow Package - 7-Way and 4-Way # 74682 Replacement Custom Multi-Tow 7-Way and 4-Way Trailer Connectors # 30955 Curt T-Connector Vehicle Wiring Harness for Factory Tow...
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  • No Power To 12 Volt Pin On 7-Way Of a GM Truck
    I did not see where you listed the year, make, and model of your tow vehicle which I would need in order to confirm the fuse location (if present) but these are almost always listed in the owner's manual so that is where I recommend that you look. If you already checked the M8 stud on the fuse box then you best option is to just run a new 12 volt power wire of your own with part # RM-156-75.
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  • Troubleshooting Right Side Running Light Not Working on Trailer Wiring
    It's probably a ground on that specific light assembly. Try cleaning up the ground of that light and you should see it work again. If it grounds through mounting hardware make sure the metal is clean or if it grounds through a wire make sure it is ran back to the main ground wire of the trailer with a solid connection to it. I attached a help article on troubleshooting trailer wiring for you to check out as well.
    view full answer...
  • No Power to Trailer Brakes when Connected to 2003 Ford F-350
    The blue wire on a brake controller is output to the trailer brakes. If that wire is not connected the trailer brakes will not be getting any power. If there is a break in that wire somewhere between the controller and the trailer connector then that could be why it isn't working when the wire is connected. You could bypass it by running your own wire if you wanted to. The ABS system should be separate from the wiring for the brake controller. Usually the only time the ABS comes into play...
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  • Wiring Extension for Flat Towing a Vehicle Behind Monaco RV with 7-Way Trailer Connector
    In order to determine the proper set up for your new towed vehicle (called a toad; the vehicle you will be flat towing behind the motor home) I would need to know the year, make, and model of that vehicle. Most of the tow bar wiring uses a 4-Way flat trailer connector with a few exceptions. Since your RV has a 7-Way trailer connector ideally you would use a cable that has a 7-Way on one end to plug into the RV and a matching connector on the other end for the tow bar wiring/lighting system...
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  • Should 12 Volt Circuit be the Center Pin or 1 Oclock Pin in a Vehicle Side 7-Way Trailer Connector
    I would stick with the standard 12 volt circuit at the 1:00 position rather than use the center pin, which is normally used for reverse lights. Please note that the 12 volt circuit on a trailer connector, no matter which pin it is associated with, will not be able to charge up a 12 volt vehicle battery (if that was your plan). It can only maintain the charge level of the battery. So if you had something using power from the Toad battery while flat towing it then the drain would be greater...
    view full answer...
  • What Gauge Wire Is Needed To Run Charge Line for Battery From Truck to Trailer
    The wire that runs from the vehicle's battery to the 7-way trailer connector and then from the 7-way trailer connector to the trailer battery should be at least a 10 gauge. If you don't have any 10 gauge wire you can purchase part # 10-1-1 by the foot. Please note, you will need a circuit breaker part # 9510 on this charge line wire about 6" away from the battery on the tow vehicle. The 7-way trailer connector can then be used to attach and disconnect the charge line between the tow vehicle...
    view full answer...
  • Troubleshooting a Factory 7-Way on a 2004 Chevy Silverado
    The first thing I would check is for corrosion on the back of the factory 7-way that is on your 2004 Chevy Silverado. If you find any clean it off as necessary. Other than corrosion the problem could be a cut or exposed wire somewhere that is causing the circuit to short out. I would recommend you use a circuit tester like our # PTW2993 to test the wires going into the 7-way and then further up the circuits until you find the correct voltage. This will narrow down where the problem lies. If...
    view full answer...
  • Activating 12-Volt Accessory Circuit to 7-Way on 2004 Chevy Silverado 2500
    The pin in the 1:00 position on your 7-way is fed by the auxiliary power circuit. The wire feeding that circuit runs to the engine compartment and terminates under the brake booster and master cylinder and will have a ring terminal on the end of it. The ring terminal will connect to the front power post on the fuse box under the hood. A 40 amp fuse will need to be installed in the location closest to the power post to activate the circuit. I have edited a photo for you showing the fuse...
    view full answer...
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