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  1. Custom Fit Vehicle Wiring
  2. Pollak
  3. 7 Blade
  4. Trailer Hitch Wiring
  5. Vehicle End Connector
  6. Plug Only
Pollak Metal 7-Pole, RV-Style Trailer Socket - Vehicle End
Pollak

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

Part Number: PK12703
In Stock
$13.85
Custom Fit Vehicle Wiring
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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. 1-800-940-8924 to order Pollak custom fit vehicle wiring part number PK12703 or order online at etrailer.com. Free expert support on all Pollak products. Great prices and Fastest Shipping for Pollak Metal 7-Pole, RV-Style Trailer Socket - Vehicle End. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (111)
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Pollak Custom Fit Vehicle Wiring - PK12703

  • 7 Blade
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • 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:

Ratings & Reviews

4.8

111 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:

Always like metal in cold country.



by:

Works well



by:

Great product. Much better than the plastic ones.



by:

Excellent product. Looks to be something that will actually last.



by:

Easy to order, product was exactly what we ordered, and had the product in out shop very quickly.



by:

This one looks good. Replacement receptacle for a broken plastic unit. Hookup went easy. Solid construction, good feel.



by:

Great RV receptacle. I prefer metal housings like this as opposed to plastics that can break at low temps. They shipped promptly as promised. Thanks eTrailer!



by:

Tougher than plastic ones



by:

good product and price



by:

Heavy duty metal not plastic



by:

Poorly designed junk. For starters, the color markings on the back are incorrect order. Once you ignore that and wire it in correct order, the plastic body will not go far enough in for the set screws to lock it into position.



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:

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:

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:

Everything about this product is subpar! Poor fitting once wired, inside would not line up straight no guide for it to line up! Overall trash!

Nick S. profile picture

Nick S.

12/22/2025

I am sorry to hear about your experience with this product. We will reach out shortly and get this resolved.



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.

Rachael H. 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:

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:

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:

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.



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:

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:

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:

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 .


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Show More Reviews

See what our Experts say about this Pollak Custom Fit Vehicle Wiring

  • 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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  • 7-Way RV Trailer Connector Wiring Diagram
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  • Trailer Running Lights Do Not Work but Brake Lights and Turn Signals Do Work
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