4-Pole 72" Long Vehicle End Wiring Harness Lowest Prices for the best Wiring from Draw-Tite. 4-Pole 72" Long Vehicle End part number 18172 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
Select Your Vehicle

View Cart

Wiring > Trailer Connectors > Vehicle End Connector > 4 Flat > Plug and Lead > 6 Feet Long > Draw-Tite

4-Pole 72" Long Vehicle End

Draw-Tite Wiring

(10 reviews)

Code:   18172


Shipping Special

Shipping Weight: 0.249998749999975 pounds


Draw-Tite Wiring - 18172

4-Pole 72" Long Vehicle End Wiring Harness


  • 18 Gauge bonded wires
  • Taillight, stop and turn functions printed on wires
  • Ground wire runs full length of assembly
  • Recommended
    • Wiring harness mounting brackets

18172 4-Pole 72" Long Vehicle End

Video of 4-Pole 72" Long Vehicle End

Videos are provided As a guide only. Refer To manufacturer
installation instructions And specs For complete information.

Video Transcript for Draw-Tite Wiring 18172 Review

Today we're going to review part number 18172, this is the draw tight seventy two inch long four way flat connector for your vehicle end. This part is used to put on your vehicle hard wiring it to your vehicle to supply signal lights to your trailer. This uses an eighteen gauge bonded wire. It does provide tail light, stop and turn functions and they are printed on the wires if you look real close ever so often it will print what each function is. Basically, the white wire is your ground, the brown wire is your tail lights, the yellow is for your left turn and stop and the green is for your right turn and stop. The nice thing is the ground wire, the white wire on this one actually does run the full length of the assembly.

We do also recommend, we have related products listed on this product page that you can use with this. You can use mounting brackets to be able to mount this on the back of your vehicle and also, they do make a dust cap that you can attach to this and use to cover the terminals when they're not being used. That should do it for the review on part number 18172, this is the draw tight seventy two inch long four way flat connector for the vehicle end.

Customer Reviews

4-Pole 72" Long Vehicle End - 18172

Average Customer Rating:  5.0 out of 5 stars   (10 Customer Reviews)

4-Pole 72" Long Vehicle End Wiring Harness

- 18172

by: John N.07/22/2014

Wiring and new self adjusting electric brakes were a simple install and work perfectly. The etrailer online video and written instructions made the job easy. 142589

- 18172

by: Darren S.03/30/2015

I needed a plug so I could pull my boat behind my camper. It was just the right length. 181597

- 18172

by: Brian06/17/2014

just installed and very happy with the quality, what a great value for the price 136005

- 18172

by: BDC03/05/2011

As Advertised, they filled order quickly and shipped it out. 8520

- 18172

by: Don09/13/2015

I got the right wires to replace the mouse damage. 225316

- 18172

by: van01/27/2011

great price, fast shipping, will use etrailer again 6204

- 18172

by: Charlie V.09/24/2014

Have not used it yet but it looks great! 152841

- 18172

by: Darrell S.03/03/2015

Fast shipping and quality product! 176858

- 18172

by: Chris M.03/11/2011

Awesome job on the shipping! 9128

- 18172

by: Davy08/08/2014

Worked as intended 145210


Ask the Experts about this Draw-Tite Wiring
Do you have a question about this Wiring?

  • Wiring a Brake Controller on a Ford L-8000 Series Truck
  • You will need to hard wire the trailer brake controller on your 8000 series Ford. The following items will be needed for installation. Brake Controller, I recommend the Prodigy P2 Brake Controller- Proportional, item # 90885, which is very easy to use and adjust with differing loads. This controller is the best controller I have towed with to date. You will also need a 7-Way installation Kit, Item # ETBC7 or 6-Way Installation Kit, Item # ETBC6, depending on which connector you need...
    view full answer...

  • Adapting 5 Pin Round Connector on Harley-Davidson to 4-Pole Flat Trailer Connector
  • The extra wire on your 5 pin H/D plug will serve one of two purposes. It is either the brake light signal or a constant 12-volt power feed to the trailer. You can easily determine which case you are dealing with by using a circuit tester like part # 40376 on the plug. Activate the turn signals, running lights and brakes to determine which pin carries which circuit. If the extra pin carries a constant 12-volts, and your trailer does not require any power supply, you could simply construct...
    view full answer...

  • Installing 4-Pole/7-Way Trailer Connector on Newmar Motorhome
  • There is not an off-the-shelf adapter that would convert your existing 7-way flat blade to a 7-way and 4-pole, but there are some fairly easy options for adding a 4-pole. You can access the wiring harness leading to the existing 7-way, and tap in a 4-pole harness like part # 18172, which would allow you to use both harnesses simultaneously. A circuit tester like part # 40376 would help identify which circuit serves which lighting function. Another option would be to completely remove...
    view full answer...

  • Adapting 5 Pin Round Connector on a Trike to 4-Pole Flat Trailer Connector
  • I have some options for you, however, I am not familiar with an adapter to convert a 5 pin round trailer connector to a 4-pole flat trailer connector. Since your trike has a 5 pin trailer connector, the extra wire on your 5 pin connector will serve one of two purposes. It is either the brake light signal or a constant 12-volt power feed to the trailer. You can easily determine which case you are dealing with by using a circuit tester like part # 40376 on the plug. Activate the turn...
    view full answer...

  • Lighting Functions and Extension Cable for the E-Z Mount Tow Light Kit
  • The E-Z Mount Tow Light Kit, # EZT20B, provides stop, turn and taillight functions for flat towing. If you need an extension There are several options depending on the length that you need. If 48 inches would be long enough you can use the 48 inch Car and Trailer End Loop, # 18044. If 60 inches is needed use the 60 inch Car and Trailer End Loop, # 18045. If you need a custom length wire you could purchase a 4-Pole Trailer End Connector, # 18004, which is 12 inches long, a 4-Pole Vehicle...
    view full answer...

  • Trailer Wiring Recommendation for a 1992 Chevy C/K Series 1500 Pickup Truck
  • It sounds like you have wiring that is connected to a third brake light like on a camper shell. What you will need to add a 4-Way flat trailer wiring connector to your 1992 Chevy C/K 1500 is the Tow Ready Custom Fit Vehicle Wiring, # 118315. This harness just plugs in line with the tail light wiring on the truck, on the driver side rear frame rail near the bumper. I have included a link to the installation details for you. The wiring for a third brake light uses a dedicated brake light...
    view full answer...

  • How To Determine if a 2006 Jeep Grand Cherokee has a 7-Way
  • If you look at the back of your 2006 Jeep Grand Cherokee and see a wiring connector that looks like the Tow Ready Wiring harness part # 20135 then you have a 7-way. Another option you could have is a 4-way which would look like part # 18172, or you might not have any connector at all. To add a 4-way you would first want the Tow Ready Wiring harness part # 118394. If you needed to upgrade to a 7-way you would need the 4-Way to 7-Way adapter part # 37185 after installing the #118394. For...
    view full answer...

  • Using Ford LED Hitch Cover on a 2014 Ford Focus when Flat Towing and When Driving
  • Since you are towing the Focus behind the RV, you would not use wiring harness # 118549 for that purpose. This harness would be used for the Focus to tow a trailer and not to tow the Focus with the motor home. I do understand what you are trying to accomplish though and why you selected that harness; the Ford LED hitch cover # CR-017F has to plug into something! But if you want to use the cover all of the time and not just when flat towing the Focus you will need to have the wiring harness...
    view full answer...

  • Can a 13-Way European Trailer Connector on a Volkswagen Amarok be Converted to US 4-Way Flat
  • The European 13-Way trailer connector does basically the same thing as the US 7-Way does except that the European version has a separate circuit and pin for every function. here in the states the turn signals and brake lights are combined on each side and there is just one running light circuit. In order to adapt the 13-Way you would need to determine which wires control brake lights, turn signals, and running lights on the 13-Way. Then you would take the left turn signal wire and attach...
    view full answer...

  • Trailer Hitch Receiver Recommendation for 1970 Chevrolet Chevelle
  • Although we do not have a custom fit hitch available for your 1970 Chevrolet Chevelle, I have a hitch that should work for you. Take a look at the Curt Adjustable Trailer Hitch Receiver, # C13701. This is a universal style hitch receiver that will fit frame widths of 18 inches to 51 inches and can be bolted or welded to the frame. Since the frame of a Chevelle is not 51 inches wide, you will need to make sure that you have enough clearance past the frame for the longer cross tube or...
    view full answer...

  • What Type of Trailer Wiring Should I Install on a 2014 Infiniti QX60
  • I am glad to hear our videos helped you install your trailer hitch. Many people want to do their own work themselves and we like to help as much as we can. There are two common types of trailer connectors, the 4-way flat connector like part # 18172 and a 7-way RV style connector like part # PK11893 (see photo). The type of trailer wiring that you would install on your 2014 Infiniti QX60 will depend on the type of connector on the trailer you will be towing. If you do not have a trailer...
    view full answer...

  • Compatibility of Mag-Flat 4-Pole Magnet # 38095 with Hopkins Endurance Quick Fix 4-Pole # HM48190
  • After testing them together, I found that although the Hopkins Mag-Flat # 38095 is a great item, it is not compatible with the Hopkins Endurance Quick Fix 4-pole Connector, part # HM48190. The connector is physically too large to allow the clasp of the Mag-Flat to close and secure the connector. If you want to use the Mag-Flat mounting magnet, I would recommend using a standard 4-pole vehicle end like part # 18172, which would be compatible with the Mag-Flat. If you like the LED tester...
    view full answer...

  • Brake Controller Installation for 1991 Ford E-350 Van Towing an 18 Foot Trailer
  • A brake controller is definitely a good idea and is the only way to activate electric trailer brakes. For your 1991 Ford E-350 I recommend the Tekonsha P2, # 90885. This is a high rated and economically priced brake controller that gets good reviews. For wiring I have included a wiring from scratch FAQ below. I also included a video showing brake controller installation on a similar vehicle. You basically need three things to wire a brake controller. First is the brake controller...
    view full answer...

  • Converting Separate Turn Signals and Brake Lights on a Motor Home to Combined to Use a Light Kit
  • I will be happy to help you out. The separate brake light circuit is going to have to be combined with the turn signals in order to use a light kit with a 4-Pole connector. There is a special converter for this, # RM-732. On the input side you will connect the right turn signal wire to the green lead, the left turn signal wire to the yellow lead, and the brake light wire to the red lead. The converter will properly combine the signals and on the output side you will have green for right...
    view full answer...

  • Can the Master Lock Wireless Backup Camera be installed on the Back of a Boat Trailer
  • First, the Master Lock wireless backup camera, # 4843DAT, can transmit 125 feet so the distance from the back of the boat to the truck will not be a problem. You could hardwire the transmitter directly to 12 volt power but it would be on all the time. I recommend hardwiring it into a running light circuit on the trailer so it comes on with the running lights like it is made to do. Make sure any wire connections are water tight by using shrink tubing or liquid electrical tape, # SWC50122....
    view full answer...

  • Trailer Wiring Harness Recommendation for a 2004 Pontiac Montana
  • Actually, all you will need to do is install a wiring harness, # 118355, on your 2004 Pontiac Montana. But if you wanted to use those factory wires, because you have separate wires for turn signals and brake lights, you would first need to install a converter. The converter, # RM-732, takes the separate signals and combines them which is what a trailer uses. To wire it up your yellow wire will go to the yellow wire on the converter, green will go to green, white will go to white, and...
    view full answer...

  • How to Make a 5-Way Female to Vehicle Side 4-Way Trailer Wiring Adapter
  • It sounds like you have a 5-way male connector on your RV like the part # PK11501 and are looking for a way to adapt it to your trailer's 4-way. You will need to make an adapter for this as one isn't available. You will need the part # PK11502, # 16-4B-1 which is sold by the foot and then a 4-way part # 18172. You will need to test the wires of the 5-way on your RV with a circuit tester like part # 3808 for function and then wire up the 4-way flat as needed. The wire colors of the...
    view full answer...

  • Vehicle Side 4-Way Connector Without a Converter
  • It sounds like you are looking for a vehicle side 4-way connector without a converter. If this is the case, we have the 4-Pole Vehicle End, # 18172, available. If you are needing a connector for your trailer, Wesbar makes the 4 Pole Flat Connector with Jacketed Cable, # W787264. Your vehicle information states that you have a 2007 Volkswagen Jetta. If you will be towing with this vehicle, it will require you to use a wiring harness with a converter like the Tow Ready Custom Fit Wiring...
    view full answer...

  • Adapter for a 6-Way Round on a Harley Davidson Trike to a 4-Way Flat Trailer
  • It does not appear that any of the 6-Way to 4-Way adapters are going to work because of the unique pin out that is on the 6-Way on your 2013 Harley trike. You would essentially need to make an adapter to match the pin out. You will need a trailer side 6-Way, # PK11604, and a vehicle side 4-Way, # 18172, cut to the length you need. Then you just attach the wires in the right place to match the 6-Way you have. On the 4-Way end the white wire is ground, yellow is left turn and stop, green...
    view full answer...

Do you have a question about this Wiring?

Info for this part was:

Video Edited:
Zack K

Video Edited:
Andrew K

Expert Research:
Michael H

Installed by:
Jeff D

Video by:
Joshua S

Test Fit:
Nicholas E

Video Edited:
Andrew L

Updated by:
Sarah W

At etrailer.com 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

etrailer.com reviewsetrailer.com reviews

All images, layout and content copyright etrailer.com