Select Your Vehicle
view cartView Cart
Only 11 Hours 33 Minutes Remaining

Wiring > Trailer Connectors > Trailer End Connector > 4 Round > Plug Only > Pollak

Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector - Metal - Trailer End

Pollak Wiring

ratingratingratingratingrating (19 reviews)

Code:   PK11402



Shipping Special

Shipping Weight: 0.5 pounds


Pollak Wiring - PK11402

Establish a secure connection between your trailer and tow vehicle with this metal, 4-pole plug. Round brass pins ensure minimum voltage drop, and pull grips enable easy insertion and removal.


  • Heavy-duty, metal, 4-pole plug connects trailer to socket on tow vehicle
    • Fits Pollack Heavy-Duty, 4-Pole Round Pin Wiring Socket (PK11404)
    • Does not fit Pollak Heavy-Duty, 4-Pole, Round Pin Socket, Concealed Terminals (PK11410)
  • Round, solid brass terminal pins
    • Minimum voltage drop is ensured
    • Dielectric (non-conducting) grease
      • Prevents corrosion and resistance
    • Solid brass terminal screws
  • Zinc, die-cast housing for durability
    • Finger grips make insertion and removal easy
  • Cable lock with plated steel retainer screw
    • Prevents chafing
    • Provides more support for cables
    • Saves installation time
  • High-impact, ABS thermoplastic interior
    • Includes extended lip for easy removal and replacement
    • Accepts up to #12 gauge wires
  • Interchangeable with competitive brands


  • Volt rating: 12 volts - 24 volts
  • Current rating: 35 amps
  • Wiring configuration:
    • Color - circuit:
      • White - Ground Return
      • Green - Right Turn and Brake Lights
      • Yellow/Red - Left Turn and Brake Lights
      • Brown - Tail Lights
  • 1-Year limited warranty

11-402 Pollak Heavy-Duty, 4-Way, Round Pin Trailer Wiring Connector - Metal - Trailer End

Customer Reviews

Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector - Metal - Trailer End - PK11402

Average Customer Rating:  ratingratingratingratingrating4.9 out of 5 stars   (19 Customer Reviews)

Establish a secure connection between your trailer and tow vehicle with this metal, 4-pole plug. Round brass pins ensure minimum voltage drop, and pull grips enable easy insertion and removal.

- PK11402

ratingratingratingratingrating by: John R.06/19/2012

Is this review helpful?

Easy to locate within the web site and easy to order, Price is good. As always, shipping charges can be irksome - but the shipment tracking and followup provided - all help off-set the charge. I appreciate being able to purchase name brand items at reasonable prices. 44751

- PK11402

ratingratingratingratingrating by: J D Nevada08/25/2013

Is this review helpful?

This is the first time I have changed out a 4-way flat for a 4-way round. Easy to do once I figured out what needed to be done. The on-line instructions were very helpful. Project turned out well. Good product and have had no problems on the road. JD 96867

- PK11402

ratingratingratingratingrating by: Darrell H09/10/2013

Is this review helpful?

Just what we needed to fit our truck, shipped quick, I have bought from here before and will buy again. 99324

- PK11402

ratingratingratingratingrating by: Darby H11/20/2013

Is this review helpful?

Product was exactly as described. Fit perfectly. Really fast shipping. 107933

- PK11402

ratingratingratingratingrating by: Jerry F.04/25/2014

Is this review helpful?

Great company to deal with. Fast shipping and great communication. 127297

- PK11402

ratingratingratingratingrating by: Sid03/20/2014

Is this review helpful?

Exactly what I needed.I have used them for years 121394

- PK11402

ratingratingratingratingrating by: Rick G07/31/2012

Is this review helpful?

Great alternative to flat-4 connectors. 49939

- PK11402

ratingratingratingratingrating by: Dale T.03/24/2014

Is this review helpful?

Excellant service & fast shipping. 121906

- PK11402

ratingratingratingratingrating by: Ewald05/11/2011

Is this review helpful?

Everything was great. Thanks 13341

- PK11402

ratingratingratingratingrating by: K. Matherne05/12/2011

Is this review helpful?

good qaulity and durable 13648

- PK11402

ratingratingratingratingrating by: Joe Cockrell02/25/2014

Is this review helpful?

Top of the line parts 117595

- PK11402

ratingratingratingratingrating by: Dennis C.09/14/2013

Is this review helpful?

just what I needed 99889

Reviews for other Heavy-Duty 4-Pole Trailer Wiring Connector :

- PK11409

ratingratingratingratingrating by: Scott M.03/18/2012

Is this review helpful?

The staff at had my order filled and at my doorstep in 3 days. Amazing service and one stop shopping for high quality parts. I added them to my favorites list. 34245

- PK11409

ratingratingratingratingrating by: Anon07/04/2013

Is this review helpful?

Well made and just what I needed. Outstanding product. 87667

- PK11409

ratingratingratingratingrating by: Lars03/18/2013

Is this review helpful?

Well made. Not much to review its a plu g. 71415

- PK11409

ratingratingratingratingrating by: Bill V02/04/2014

Is this review helpful?

good product fast delivery 115759


Ask the Experts about this Pollak Wiring
Expert Answers about Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector - Metal - Trailer End - PK11402                                           Do you have a question about this Wiring?

  • Can I Replace the Four Way Round Connector on My Roadmaster Magnetic Tow Lights, # RM-2100
  • Yes, you can re-wire the Roadmaster Deluxe Magnetic Tow Lights, part # RM-2100, to a different connector so it will connect to your motorhome. Most likely the 4 wires will be the standard colors and will wire up color to color. These colors are: Green, Right turn Yellow, Left turn White, Ground Brown, Tail/Marker Typically, the connector is wired in this way: The green wire will be on the top left, the yellow wire will be on the top right, the brown will be on the bottom left,...
    view full answer...

  • Correct wiring for the Pollock part # PK11402
  • The typical wiring for a 4-Way round electrical connector are: White - Ground Return Green - Right Turn and Brake Light Yellow/Red - Left Turn and Brake Light Brown - Tail Light There are two ways for you to determine the functionality for each of your wires: You can either trace each wire to determine which lamp it feeds, or, you can use a 12 volt automotive battery and apply power to each circuit to determine its function. Ground the negative post to the battery to the trailer...
    view full answer...

  • Best Way to Connect a 4-Way Round Trailer End to 4-Way Flat Vehicle End
  • The easiest way to get your 4-Way flat vehicle end to connect to your trailer with a 4-Way round is to remove the 4-way round from your trailer and connect the wires to a Draw-Tite 4-Pole Trailer End Connector, part # 18004. This will give you a 4-Way flat on your trailer. In general, on a trailer, the white wire is the ground wire, the yellow wire transmits the left turn/brake signal, the green wire transmits the right turn/brake signal, and the brown wire is the running lights. I...
    view full answer...

  • How to Wire a Mini Truck to be Flat Towed by a 1990 Holiday Rambler Motorhome
  • Wiring your Subaru Sambar to be flat towed by your 1990 Holiday Rambler motor home will require the installation of diodes inline with the Sambar taillight wiring. You will need to start with a diode kit like the Tail Light Isolating Diode System with Wiring Harness, item # 38955. We have detailed instructions for wiring a towed vehicle, see link, and I have attached a diagram, see link at right, that shows how to wire the towed vehicle. We also have a video installation for you to...
    view full answer...

  • Availability of 4-Round Trailer and Vehicle Connectors that Will Accept 12 Gauge Wire
  • A 3-flat is indeed a tough plug to find. It might be best to change to a 4-Way of some type. We have the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector, # PK11402, that will accept up to 12 gauge wire. This is a trailer end plug. The vehicle side is the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket, # PK11404. It, too, will accept 12 gauge wire. I have included an FAQ article on trailer wiring below.
    view full answer...

  • Which 4-Way Round Trailer Side Connector Fits Pollak Heavy-Duty, 4-Pole, Round Pin Socket # PK11404
  • The 4-Way rounds have 2 different sizes. The connector that is compatible with # PK11404 is # PK11402. What you can do is either replace the 4-Way flat on the trailer side with this connector or you can replace the 4-Way round on the adapter you have with # PK11402.
    view full answer...

  • Replacing a 4-Round Connector with a 4-Flat on a Bayonet Trailer Towed by a 1999 Lincoln Navigator
  • If your trailer has a 4-Round that looks similar to # PK11402, you can clip off the plug and connect the wires to a 4-Flat that will fit the 4-Way on the 1999 Lincoln Navigator. You can use the Quick Fix(TM) 4 Pole Flat Trailer End, # HMC20031, or directly wire a trailer-side 4-pole connector like # 18004. The shielded pin is the ground and is usually a white wire. The pin next to that is for the tail and running lights and is usually a brown wire. The next pin is for left turn and is...
    view full answer...

  • Will the Roadmaster FuseMaster Fuse Bypass Fit a 2011 Ford Edge
  • Yes, the Roadmaster FuseMaster Fuse Bypass, # RM76511, will work on your 2011 Ford Edge. Using this fuse bypass will not affect the tail lights on your Edge or the tow dolly because they will receive power from the tow vehicle. If your tow dolly does not have tail lights and you plan on using the tail lights on your Edge, then you will also want a tail light wiring kit like the TowDaddy Custom Tail Light Wiring Kit, # TD3019. This wiring kit connects inline with your tail light wiring...
    view full answer...

  • Tow Bar Wiring to Flat Tow a 2002 Chevy Silverado Behind a Dump Truck
  • If you replaced the 4-Way flat connector on the Diode kit # RM-154, you would just have to make sure it was wired to match what your dump trucks require. But yes, it will work. You could use 4-Way round trailer end # PK11402. Given the automatic lights on your truck it could cause some back feeding issues. You would either need to use 2 additional diodes # RM-690 for one, on the wires running from the running light circuit from the dump truck to the diodes included with # RM-154, forward...
    view full answer...

  • What Style 4-Way Round Socket Does the Custer Trailer Connector Adapter # ADP001 Fit
  • The Custer Trailer Connector Adapter # ADP001 that you referenced is designed to fit 4-way round receptacles like the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket # PK11404.
    view full answer...

  • Will the TowDaddy Universal Tail Light Wiring Kit # TD10000S Fit a 2001 Suzuki XL-7
  • Yes, the TowDaddy Universal Tail Light Wiring Kit, # TD10000S, will work with your 2001 Suzuki XL-7. I have attached the installation instructions, but keep in mind, since this is a universal harness designed to fit on several different vehicles, the instructions are universal as well. For your XL-7, you will want to follow the section titled Separate Brake and Turn Installation Guide. In addition to this harness, you will also want to pick up a trailer connector that matches the...
    view full answer...

  • How to Wire Nissan Tow Car to Winnebago Motorhome with 4 Pin Round Connector
  • Wire colors on motor homes and vehicles are not standard and vary, even between models produced in the same model year. Because this is the case you will need to use a circuit tester, item # 3808 if needed, to test the existing wires on your motor home and vehicle to determine the correct wires to splice your tow wiring to by function. Use the circuit tester and have someone in the vehicle activate each function. Once each function is located on the car and motor home label each one and...
    view full answer...

Info for this part was:

Photos by:
Theodore B

Written by:
Tyler C

Expert Research:
Robert G

Expert Research:
Jeff D

Expert Research:
Lori W

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

Stay Connected

Subscribe to email newsletter


privacy - we don't send unsolicited email

Only 11 Hours 33 Minutes Remaining reviews

All images, layout and content copyright