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Custom Fit Vehicle Wiring > 2012 > Nissan > Armada

Hopkins Custom Fit Vehicle Wiring for the 2012 Armada by Nissan

Hopkins Custom Fit Vehicle Wiring

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Code:   N40975

Retail:$65.00

Price:$50.98


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Factory Style 7-Way and 4-Way Flat Vehicle End Trailer Connector - 2012 Armada by Nissan

Factory Style 7-Way and 4-Way Flat Vehicle End Trailer Connector

  • Plugs into the Nissan Armada's factory plug behind the bumper and provides a 7-way and 4-way trailer connector hook-up
    • Includes the 3 relays required to activate the wiring harness
      • 2004-05 Nissan Titans only require 2 relays
  • Mounting bracket and installation screws included
    • Trailer connectors and mount bracket snap-together


Pollak 7-way and 4-way Vehicle End Trailer Connectors with relays to activate the Nissan tow package




Video of Factory Style 7-Way and 4-Way Flat Vehicle End Trailer Connector


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

Video install wiring 2004 nissan armada
Trailer Wiring Harness Installation- 2004 Nissan Armada
Video install trailer wiring 2010 nissan titan n40975
Trailer Wiring Harness Installation - 2010 Nissan Titan

Video Transcript for Trailer Wiring Harness Installation- 2004 Nissan Armada

Today on this 2004 Nissan Armada we are going to install part number N40975 from Hoppy. We are also going to use part number 18140 from Tow Ready. This is the bracket we will use to connect to the hitch. These are the two parts that come with the Hoppy kit. This bracket, and this connector, they just snap together. Mounting this to the hitch is going to be a little bit different. That is where we are going to use the other part number 18140. This will clamp to the hitch, and then we will mount this to the bracket. :35

If you look at the vehicle, there is not a very good place to attach this to. You could put it off to the side here, but that would require an extra long lead from your trailer to go around and make a right hand turn. It is not a good idea to put it that far out. We are going to move it here where there are a couple options. You can mount our bracket like this and mount it below, but it does look out of place. What we can do is actually take our bracket, put a small bend in it and put it like this and attach it which brings it a little bit closer. What we will do is take this piece and put it in a bench vice, grab a pair of plyers and pull up on this to make a gentle curve. You should end up with something like this. 1:18

Lets go ahead and install our bracket. Run the clamp around it, pull it through the clamp, and then take the threaded part, and push it towards the band itself and it locks in place. Then you can tighten it up. We will cut off our excess, That will leave a sharp edge, so we will leave it long and fold it up inside, that way you have a rounded edge instead of a sharp edge. We will that through the top, put this on, add a fender washer which you can get from any hardware store. Then bolt it together. This vehicle has the factory wiring harness built it, it is tucked up behind the bumper up here, so I have to reach in and pull it out. It does have a fastener that holds it in place. Pop it out and bring it to you. 2:49

Take off our cap, and then take our connector and snap it into place. Then plug our wiring together. Now take your wires, and zip tie them up and out of the way. We will go ahead and point out where the relays are going to be located on this vehicle. We are on the passenger side of the vehicle underneath the hood next to the battery. There are two fuse panel covers, we are going to remove the one closest to the battery. This vehicle has all the relays installed from the factory, so we got lucky. But, if you did not have it you would have to put a blue relay here.,located in Tow 1. In this socket you would install the brown one in location Tow 2. If you needed a 3rd one, there is an extra socket over here for it. Some models need this one, some do not. It also varies between the years, so take a look at what you have and what you need on your vehicle. That will finish our install of part number N40975 from Hoppy and part number 18140 from Tow Ready.


Customer Reviews

Factory Style 7-Way and 4-Way Flat Vehicle End Trailer Connector - N40975

Average Customer Rating:  ratingratingratingratingrating4.9 out of 5 stars   (31 Customer Reviews)




- N40975

ratingratingratingratingrating by: Bobby V.05/25/2011

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Excellent customer service. Quick shipping. Easy installation. The video was clear and helpful. Could not ask for more from etrailer. Will order from them again. 15343



- N40975

ratingratingratingratingrating by: Patrick R.08/09/2012

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Great product. It is exactly what I was looking for and it was Shipped quickly. 2008 Nissan Armada 51173



- N40975

ratingratingratingratingrating by: Marc S.07/15/2011

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Great product, but for the 2006 Nissan Armada, you need another blue relay to install under the steering column to the left. you have to remove the lower dash to be able to see it. There is a relay plug there that you need to put in a blue relay to make the running lights work.19471



- N40975

ratingratingratingratingrating by: John O.06/20/2013

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The product is great just as it is advertised. But the really wonderful part is Dana M.I knew what I wanted but the part number was a old one not in the system. She found what I needed,she is an asset to etrailer.com..Thanks85386



- N40975

ratingratingratingratingrating by: missie03/04/2013

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Wow!!! From the time I opened the package to the time I was ready to hook up to the trailer was 13 minutes!!!! My '07 Armada needed the extra blue relay under the dash, but thanks to your forums and customer reviews I was prepared for that by the time the package arrived. I ordered on a Sunday night and even with a blizzard hitting your area of the US hard, I still had my parts by that following Friday morning!!! Bravo to all who put customer service #1that is something that seems to have been forgotten by many companies but obviously not etrailer.coms!!! Thank you for providing exactly the product that was described, and the service that you promised!!!! Sincerely, Jason, Missie, and Family68617



- N40975

ratingratingratingratingrating by: Brent L.05/19/2011

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Easy to install on my 2010 Nissan Titan. All I had to do was plug it into the factory wiring. The only problem I ran into was there is a third relay that needs to be installed for this to work properly. Without it all of the trailer lights worked except for the running lights. I took my truck into a Nissan dealer and they added the relay, somewhere under the dash. 14769



- N40975

ratingratingratingratingrating by: Jason03/19/2011

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Great product. Quick and easy to instal l.9842



- N40975

ratingratingratingratingrating by: Jeff T.12/31/2013

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Shipped fast and installed very fast and easy. Looks factory installed.111591



- N40975

ratingratingratingratingrating by: Sonny B11/13/2013

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Excellent product and very easy to install. 107226



- N40975

ratingratingratingratingrating by: Brian C.09/15/2013

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Wiring was exactly what I needed for 2012 Nissan Titan. Works great and was easy to install-came with instructional video also.99982



- N40975

ratingratingratingratingrating by: oj04/22/2013

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EASY!!! 77278



- N40975

ratingratingratingratingrating by: Mark03/22/2013

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This was a great experience for me ! The lady I worked with over the phone was of great help putting the wright supplies together for mt truck ! Thanks,Mark with Wild Hogs Motorsports71895



- N40975

ratingratingratingratingrating by: Ivan03/11/2013

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This adapter is exactly what I was looking for. It had both 7 way and 4 way connectors. It looks great and plugged strait in to the harness already on my Armada. 69991



- N40975

ratingratingratingratingrating by: James01/16/2013

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Perfect! Had it installed in 20 minutes. Hooked up to my trailer, and everything worked. Thank you.63255



- N40975

ratingratingratingratingrating by: cheryl12/05/2012

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AAAA + 60683



- N40975

ratingratingratingratingrating by: Roman.M11/20/2012

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Great product, easy to install. Thank y ou!59806



- N40975

ratingratingratingratingrating by: Kevin C09/28/2012

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Excellent product and excellent service. I would recommend etrailer.com anytime. I like that delivery was very prompt. 56010



- N40975

ratingratingratingratingrating by: Mike P08/09/2012

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I placed my order for a trailer conversion kit for my 2006 Nissan Titan. It came in a day ahead of the scheduled delivery date, I installed every thing and it worked like a charm. Thanks etrailer.com!!!!!!!!! 51218



- N40975

ratingratingratingratingrating by: Josh04/01/2012

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thanks to etrailer for getting me the right product for my vehicle.35855



- N40975

ratingratingratingratingrating by: Gary B/03/29/2012

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Customer Service was exceptional - product was usable right out of the package- follow-up and communication was surprisingly pleasant – I would order from etrailer.com again 35503



- N40975

ratingratingratingratingrating by: kevin L02/07/2012

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easy install. Took a total of maybe 5 minutes. perfect 31300



- N40975

ratingratingratingratingrating by: James P01/19/2012

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Great price, great product, and was updated along the way... look forward to the next purchase29920



- N40975

ratingratingratingratingrating by: Luis Villarreal12/31/2011

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Excellent products! everything fits & works great.Thanks!28941



- N40975

ratingratingratingratingrating by: Neal P.12/21/2011

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I ordered a hitch and trailer wiring and the service was great, received my items in a timely manner and everything was correct . I still need a trailer brake which I will be ordering soon.28447



- N40975

ratingratingratingratingrating by: Bill O.08/29/2011

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high quality. just what I wanted. easy to install. speedy delivery. Very happy with quality and delivery time.23061



- N40975

ratingratingratingratingrating by: Jim D.06/28/2011

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Very easy to install. 18139



- N40975

ratingratingratingratingrating by: Joe Harper06/03/2011

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7/4way went on real easy. Did not need the fuses because my Infiniti already had them.16055



- N40975

ratingratingratingratingrating by: Don P05/11/2011

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Recieved the trailer electrical stuff just fine. The best kit in the industry. Thanks13485



- N40975

ratingratingratingratingrating by: Yanel02/19/2011

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Etrailer never disappoints. Item arrived in just a few days... shipping was lightning fast. Product installed on my Titan with no modifications needed. Thanks Etrailer!7487



- N40975

ratingratingratingratingrating by: Smoke09/20/2010

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Complete in under 5 mins Great Kit. Plain and simple 3470



- N40975

ratingratingratingratingrating by: rafael05/12/2011

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High quality product and easy to install. Would but products from this company again.13621



Ask the Experts about this Hopkins Custom Fit Vehicle Wiring
Expert Answers about Factory Style 7-Way and 4-Way Flat Vehicle End Trailer Connector - N40975                                            Do you have a question about this Custom Fit Vehicle Wiring?


  • Factory Style 7-Way and 4-Way Flat Vehicle End Trailer Connector for a 2007 Nissan Titan
  • The # N40975 wiring package is all that you need to set you Titan up for towing. It comes with all the relays needed as well. This trailer connector provides both a 4-pole and a 7-way connector. To see a video of the connector being installed on a similar vehicle, click the provided link.
    view full answer...

  • Installing Factory Style 7-Way and 4-Way Flat Trailer Connector on 2004 Nissan Pathfinder Armada
  • I am sorry you are having trouble with installation of the wiring harness on your Pathfinder Armada. We have a video of the same wiring harness being installed on your vehicle. On the driver side of the vehicle looking up at the backside of the bumper behind the spare tire you will find the round connector that you will use to connect the wiring harness. Remove the cap and then plug the trailer harness into the rear of the trailer connector. Once you have this done you can install the mounting
    view full answer...

  • 2009 Nissan Pathfinder Brake Controller Wiring
  • If you have a 2009 Nissan Armada without a factory 7-way connector then the Factory Style 7-Way and 4-Way Flat Vehicle End Trailer Connector, item # N40975, will complete the wiring at the rear of your vehicle and provides the relays needed to activate the wiring harness for brake controller and accessory functions. Along with the wiring and relays you will need a brake controller with a vehicle specific adapter to plug into the port located under the dash of your vehicle. I recommend the Te
    view full answer...

  • How to Activate Nissan Titan 7 Way Wiring Harness Using Factory 7 Way Kit # N40975
  • The # N40975 Trailer Wiring Kit will include detailed instructions on how to install this part and the associated relays. There is a relay panel under the hood, in the engine bay, by the battery on the passenger side. If you remove the cover you will see some open ports. Trailer Tow 1 is where the blue relay goes and Trailer Tow 2 is where the brown relay goes. I have included a video showing the installation of this harness below. Most likely, your current harness is missing the relays,
    view full answer...

  • How Do I Install Hopkins Nissan 7-Way Connector and Relays part N40975
  • We do not have a diagram, but we do have a video that should be very helpful. Valley offers a similar part that requires the same relays. Follow the video and it should be pretty straightforward. Check out the link below.
    view full answer...

  • Need Replacement 7-way Harness and Bracket For 2010 Nissan Titan
  • For a replacement harness with a 7 and 4-Way connector and bracket, you will need the OEM Style 7-Way and 4-Way Trailer Connector, part # HM40975. Only the bracket and the 7-way/ 4-pole connector is included. The existing wiring harness will plug into the rear of the # HM40975.
    view full answer...

  • Trailer Running Lights Not Work with Wiring Harness for a 2010 Nissan Titan
  • There are some things you can check to determine what the problem is. First, in the vehicle and trailer side connectors, check for any dirt or corrosion that may be causing a bad connection and clean it out. If the trailer has a lot of lights that use the running light circuit, it could be too much power draw for the system and the wiring on the vehicle is not allowing it to draw power. Use a circuit tester like # 3808 to test the 7-Way without the trailer connected to see if the running ligh
    view full answer...

  • Are Tow Package Relays Available for a 2009 Nissan Titan
  • Yes, we do have the relays by themselves. They are part # C57000. We also have a video which I have linked showing installation on a 2008 Nissan Armada and another video showing installation on a 2006 model. Installation will be similar on your 2009 Nissan Titan. Consult the vehicle owners manual for the proper location of the relays on your truck.
    view full answer...

  • Trailer Brake and Running Lights Do Not Work when Connected to a 2004 Nissan Titan
  • It is very possible that a relay for the running light tow package wiring is not functioning or is missing. What can happen sometimes is if the relay is not there, only some power can get sent back to the trailer but a full load will not work. This could be why the lights blink when you lock the truck with the key fob but do not work when constant power is applied. The 2004 and 2005 Nissan Titan trucks only require two relays. The relays in questions are included with the Hopkins trailer conn
    view full answer...

  • Troubleshooting Tail Lights of Trailer Towed by 2008 Nissan Titan
  • It sounds like you most likely have a short in the trailer wiring that has caused a fuse to blow. Your fuse box will have a sticker on the underside that shows which fuses protect which circuits. You will need to locate and repair the trailer wiring short before using the trailer again. Start with the trailer connectors on the vehicle and the trailer. Make sure they are undamaged and free of corrosion. Any corrosion found on the sockets or pins of the connectors might have spread to the in
    view full answer...

  • Will the Hopkins Factory Style 7 and 4-Way Vehicle End Trailer Connector Fit a 2006 Nissan Titan
  • Your 2006 Nissan Titan should have the wiring harness that plugs into the back of # N40975 tucked up behind the bumper. It may be hidden behind another harness or another component. Take a look at the video I have linked showing a typical installation. The included relays will make the wiring harness fully functional.
    view full answer...

  • Trailer Turn Signals and Brake Lights Not Working on a Trailer Towed by a 2004 Nissan Titan
  • Since the shop replaced some parts and tested the circuits, it sounds like you have a ground issue on the trailer side. First, make sure that the vehicle side and trailer side connectors are clean and free of any corrosion. Corrosion can build up on the pins but also in the backs of the connectors where the wires attach. Next, make sure that the main ground from the trailer connector is attached to a clean metal surface. Then do the same for the trailer lights. If you recently added a plastic
    view full answer...

  • Stop and Turn Signals Work But Tail Lights Do Not Work on Trailer
  • The first thing I would check is the trailer wiring running light fuse located in the power distribution box under the hood. Once the fuse box is located check the legend on the lid to determine the correct fuse to check. Blown running light fuses are a common problem with the Nissan Titan trucks. If the running light fuse is not blown or missing, you should also check fuses in the cab of the truck. Again use the legend on the cover, you will have a fuse box on the passengers side and the dri
    view full answer...

  • No Power to Trailer Wiring Harness # N40975 Installed on a 2011 Nissan Armada
  • It is possible that the relays are not in the correct locations for wiring harness # N40975. Consult the owners manual for all of the locations and make sure they are in the right spots. On some Nissan vehicles an additional relay is needed next to the steering column under the dash. It will be a small blue relay. You can obtain the relay from the dealer or use one of the blue ones in kit # C57000.
    view full answer...

  • Taillights Not Working on a 2007 Nissan Titan with Factory Tow Package Trailer Wiring
  • The first thing I would check is the trailer wiring running light fuses located in the power distribution box under the hood, they should be fuse number 32 and 36. Once the fuse box is located check the legend on the lid to verify the correct fuses to check. Blown running light fuses are a common problem with the Nissan Titan trucks, and if the fuse is blown you need to make sure your trailer wiring is not shorted before plugging it in again or you will continue to blow fuses. Next, I would t
    view full answer...

  • Relay Recommendation for a Nissan Pathfinder
  • It sounds like you need to install a few relays to complete your trailer wiring harness. For just the relays you would want the Curt Relay Kit # C57000. I attached an installation video that shows where these are installed for you to check out also.
    view full answer...

  • Availability and Installation of Trailer Wiring Harness on 2007 Nissan Titan
  • It sounds like you are wanting to install a 4-Way connector to the rear of your 2007 Nissan Titan for your tailgate light bar to plug into. If you do not have a factory 7-way on the rear of your 2007 Nissan Titan you can use the Hopkins 7-Way and 4-Way Vehicle End Trailer Connector, part # N40975, you have referenced. This connector comes with the three relays and the mounting bracket. It plugs into the vehicles wiring harness behind the bumper and gives you a 7-Way and a 4-way at the rear of
    view full answer...

  • Running Lights Not Working and No Power to the Running Light Pin in the Trailer Connector
  • There are a few things that you can check to see why you do not have power for your running lights at your trailer connector. The first thing to check would be the pin in the connector for any corrosion or dirt buildup. If the pin looks clean and your vehicle has a factory tow package, then the issue may very likely be a blown fuse or faulty relay since the running lights worked last year. If you are using an aftermarket wiring harness, make sure it is grounded properly. A poor ground co
    view full answer...

  • Trailer Lights Work with Battery But Do Not Work when Connected to Truck
  • Since the lights work on a different trailer then like you said the issue must be on the trailer. To determine the issue you will first want to check the trailers connector. If there is any dirt or corrosion you will need to clean it out on the pins and where the wires attach. Next make sure the main trailer connector ground and the grounds for all of the lights are attached to clean and corrosion free bare metal surfaces. Then you will want to inspect the trailer wiring from the plug to
    view full answer...

  • Only Some Trailer Lights Work with 2005 Nissan Titan with Factory Tow Package
  • We do separately offer only the relays for Nissan vehicles that come as part of the kit you referenced, part # N40975. The three relays by themselves are available as part # C57000. I have linked a video showing installation of these relays in a 2011 Titan. These install in the relay box behind the battery; the underside of the box cover should have labels for each relay socket. If these relays are missing or damaged then this kit should take care of the issue. You might also want to check your
    view full answer...


Nissan Armada Accessories


Info for this part was:


Expert Research:
Michael L

Expert Research:
Robert G

Expert Research:
Patrick B

Expert Research:
Michael H

Expert Research:
Jeff D

Expert Research:
Jameson C

Video Edited:
Joshua S

Test Fit:
Nicholas E

Expert Research:
John H

Expert Research:
Adam R

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