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Custom Fit Vehicle Wiring > 2006 > Toyota > Tundra

Tow Ready Custom Fit Vehicle Wiring for the 2006 Toyota Tundra

Tow Ready Custom Fit Vehicle Wiring

ratingratingratingratingrating (33 reviews)


Code:   20137

Retail:$51.23

Price:$41.95


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Shipping Weight: 2 pounds

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Replacement Multi-Plug 7-Way and 4 Pole Trailer Connector - 2006 Toyota Tundra

Tow Ready Replacement 7-Way Flat Pin and 4-flat Combo Adapter Harness for Vehicles with a Factory Socket

  • Ability to tow trailers with different style trailer connectors
  • Durable plastic shell
  • Provides both a 7-Way and a 4-Way covered trailer connector
  • Mounting bracket included

NOTE: Vehicle must have the factory 7-Way in order for this harness to fit


Close Up View of Vehicle Side Plugs
  • Replacement socket for the following Toyota Tundras with a factory 7-Way:
    • 2003-2006 Lexus GX470
    • 2003-2006 Toyota 4Runner
    • 2003-2004 Toyota Sequoia
    • 2003-2006 Toyota Tundra

Note: Toyota and Lexus wired many of the models listed above two different ways. You will want to match the wiring with the diagram on the 3-pin connector above. If your Toyota Tundra's wiring does not match, you will need the Hopkins wiring (HM43385) or hardwiring might be necessary.


20137 Tow Ready 7-Way and 4-Way Multi-Plug T-One Connector Assembly




Customer Reviews

Replacement Multi-Plug 7-Way and 4 Pole Trailer Connector - 20137

Average Customer Rating:  ratingratingratingratingrating4.4 out of 5 stars   (33 Customer Reviews)




- 20137

ratingratingratingratingrating by: Bryan P.05/22/2012

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As always, e-trailer products were delivered super fast, customer service was top notch and the product itself was great quality - even better than factory part with the addition of the standard 4-way connector - so why the poor rating???? Upon eager anticipation of the install, I find my factory 3 way connector piece has a male end, while the replacement connector also has a male end - this won't work. I would suggest you remove your factory connector to double check so you don't fall victim to this as I did. I was looking to replace a 2004 4Runner Sport Edition.41283



- 20137

ratingratingratingratingrating by: Jan07/11/2013

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I replaced the 7-way trailer connector harness with this product. I own a 2005 Tundra. The original connector was damaged when I backed into a rock I didn't see. This product is superior to the stock connector, for several reasons: [a] it also includes a 4-way connector, which increases towing flexibility, [b] overall, it is more robust than the original (in my opinion), and [c] the wire harness is better integrated into the connector, which prevents water and dust intrusion. The wiring harness is shorter than the original, but the end plugs connected [new male to existing female] without issue - although the stock wire bundle holding strap positions could not be used. In fact, based on the fit, I abandoned the holding straps altogether. Contrary to one reviewer, who questioned whether the plugs would remain connected due to the stretch, the plugs snap together. As several other reviewers have mentioned, the bracket holes are misaligned slightly and are too small for the stock bolts. By drilling these holes out with a 5/16 bit, the fit is nearly perfect. The product sheet implies the connector is an add-on [as evidenced by the included self-tapping screws], not a replacement, as advertised. Regardless, this is a quality product that installs easily and quickly for the DIY customer with basic tools. In addition, it saves a bundle of money in avoiding a purchase at a dealership ! ! ! I just checked with my Toyota dealer and they wanted just over $200, and that's with a 10% discount.88968



- 20137

ratingratingratingratingrating by: Mike M.04/16/2012

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Solid product. Harness connectors were spot on. I replaced a factory 7 pin connector. There are two areas for improvement. First, the bracket mounting holes were slightly smaller than stock and had to be drilled out a little. Also, the spacing was off about a 1/16", but the drilling took care of that. 2nd, the harness is about 3 to 4 inches shorter than stock, so the original wire loom holding strap positions could not be used. Otherwise, great connector. The 4 pin flat connector is a great addition!37435



- 20137

ratingratingratingratingrating by: Fred D.04/16/2014

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I received my 2003 Tundra trailer wiring pigtail in short order which is a pleasant surprise. I haven't installed it as yet because I haven't been able to get the old one off as yet. I'm scheduled for an appointment with Toyota for an oil change and they will take the old one off. But I have compared the new one to the old one and it appears to be an identicall fit. Now instead of having a seperate 4-way flat hanging down I'll have one attached to the 6 way plug. My complements on the quality and fit of this item.125369



- 20137

ratingratingratingratingrating by: Eric E.02/19/2014

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The holes on the mounting bracket that mounts on the bumper has to be drilled out. Other than that very happy with this product. Would recommend this to any one. It is equal in pries to a 7 pin to 4 pin adaptor and is far better and more versatile. Strongly recommend 116984



- 20137

ratingratingratingratingrating by: Scott B.10/03/2013

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Product quality was good.Mounting bracket a little "cheaply made"not very strong. Also bracket holes did not match up with factory holes in bumper.Needed to make holes bigger to mount.Overall very happy with product.102351



- 20137

ratingratingratingratingrating by: Eric09/05/2013

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Product is super but... It did NOT fit on my 2004 Sequoia without my needing to move the location from the original. After reading the other reviews, I bought it assuming that if I removed the original wire holders, it would stretch and still plug in. Mine did not. My original wires were 24 inches long, these are 12 inches. That is a big difference. The folks at e-trailer were great but in the end, I did have to relocate my plug.98439



- 20137

ratingratingratingratingrating by: Scott N.04/30/2013

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I purchased this harness to replace the OEM harness that broke off. The replacement harness was well built and installed easily. I just had to oversize the bracket holes because I was using the original hardware. If the spring loaded cover had a rubber weather seal it would have got a 5 star rating. Great product!78435



- 20137

ratingratingratingratingrating by: Harvey01/24/2013

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This product did the job in replacing the factory wiring harness. I only had to modify the mounting holes spacing slightly by drilling out the holes to accept the original screws. The supplied mounting screws were much less substantial than the originals and did not fit the nuts that held the original harness. The job took about 30 minutes.63995



- 20137

ratingratingratingratingrating by: Douglas Tervooren08/31/2012

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The product was exactly what I needed. The only problem I had was bolting the mount back onto the frame of my truck. The hole spacing in the mount did not match the original spacing by about .25" so I had to drill the mounting holes larger to match my bolt holes.53660



- 20137

ratingratingratingratingrating by: John B.06/15/2012

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First, let me say, I don't usually write reviews... However, this product rocks. My used Tundra had a broken multi-plug and I was thinking about heading out to a junkyard to get a replacement as Toyota wanted +$150.00 for a new part. I found etrailer online and ordered it. Other than having to drill out the two holes in the bracket that mounts to the bottom of the bumper, the install was flawless and easy (less than 10 minutes). I have already told two friends about etrailer, and I will be shopping here again if/when I need additional trailer accessories. 44353



- 20137

ratingratingratingratingrating by: Brett D04/30/2012

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Here's a first, this "RARE" 1- The young man that answered the phone "TITUS T" actually knew the answers to help me, and was right!. (spoke english) 2-The part came on time as promissed and I recieved e-mail notifications the entire time as to the shipment status. 3- When the part arrived it was O.E.M. as promissed and 170.00 dollars cheaper (no kidding) than the Toyota dealership. 4- The part actually plugged right in as promissed!!! I think I found somebody that I will conduct business with again, I am not a big fan of internet purchases because of bad return policies etc. But if they get it right the first time like these guys who needs a return policy? I give them two thumbs up!!38849



- 20137

ratingratingratingratingrating by: Holden W.05/02/2013

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Nice product Connector hooked up perfectly with my Toyota Tundra Also it was a quarter of the price Koons TOYOTA IN WESTMINSTER MD WANTED TO CHARGE ME THANKS78684



- 20137

ratingratingratingratingrating by: onlyforshopping04/16/2014

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Connected and worked as advertised. 125575



- 20137

ratingratingratingratingrating by: Charlie02/23/2014

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As others have said the mounting holes are to close together but that was a easy fix. Other than that it was easy to install and works great.117273



- 20137

ratingratingratingratingrating by: Shawn O05/31/2013

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Plugs and plays easily, works great! I had to bore out bracket holes but it was quick and easy. My auto dealer wanted $261 for this part, saved a lot of money.82690



- 20137

ratingratingratingratingrating by: claudio tirado05/10/2013

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It didn't work I had to get a mechanic to cut the wires and rewire the whole thing for it to work.79756



- 20137

ratingratingratingratingrating by: Mark04/22/2013

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Fits perfect, easy installation. Quick service from etrailer.77256



- 20137

ratingratingratingratingrating by: BCL04/22/2013

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fit and works just like its supposed to. I too had to drill the holes out a little but otherwise plug & play77235



- 20137

ratingratingratingratingrating by: michael03/18/2013

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The harness fit with no modification, plus I saved $150 versus getting it from the dealership.71460



- 20137

ratingratingratingratingrating by: J.11/20/2012

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Arrived as advertised and super quick! Recommended.59835



- 20137

ratingratingratingratingrating by: larryl11/14/2012

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The harness was way too tight - wires were short for my 2004 Sequoia. I was just able to connect it. Im not sure it will stay connected it was so tight. Shipping was great.59444



- 20137

ratingratingratingratingrating by: Mike11/12/2012

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Great news!!!! It's like my mac, you just plug it in and it works. Thanks for a great product.59292



- 20137

ratingratingratingratingrating by: Patrick L.09/05/2012

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Easy to install and works great. 53998



- 20137

ratingratingratingratingrating by: Mike08/14/2012

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Perfect fit for my 03 Tundra. Just swap the broken one out. Delivery was FAST! Thanks.51648



- 20137

ratingratingratingratingrating by: peter o08/13/2012

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Very pleased with the product and the fast delivery. 51582



- 20137

ratingratingratingratingrating by: Ben H.06/22/2012

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Excellent service. The product arrived quickly and is a better product than the Toyota one. My trailer lights are working for the first time in 3 years! Would definitely do business again. 45184



- 20137

ratingratingratingratingrating by: Laszlo L.06/09/2012

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was easy to install . ver reasonable price ; good customer service!!!43446



- 20137

ratingratingratingratingrating by: Ben kenney05/30/2012

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Great replacement and great price!!!!!!!!!! Thank you for you help!!!!42036



- 20137

ratingratingratingratingrating by: Allan H.04/15/2012

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Everything mounted well and wiring harness plugged into existing harness. Very happy37298



- 20137

ratingratingratingratingrating by: Bob W10/09/2011

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Shipped fast and was exactly as represented. Easy to Install. Why pay the dealer's outrageous price of over $185 when you can get this instead for a 1/4 of the price. Thanks etrailer.com !25297



- 20137

ratingratingratingratingrating by: Hewell W08/31/2011

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George J, Nathan S, Katie The replacement multi-plug 7-way and 4-pole trailer connector was just as I excepted. I will always use etrailer for any trailering needs. Good quick service. Hewell W23276


Comments

I have a 2004 Toy Tundra 4.7 Quad cab with factory installed tow kit. Want to replace light harness kit as trailer lights are not functioning and man at trailer shop with a tester said no power is coming out of trailer plug on truck to boat wiring.

comment by: James H - 7/15/2013


1753

If your Tundra has the factory 7-Way connector then this would work. It would be worth the time to check the fuse blocks and see if any of the towing fuses are blown. Also, check the connections on the harness and make sure they are clean and clear. If fuses are blown or connectors are dirty or corroded, a new harness may not help.

Patrick B - 7/16/2013




- 20137

ratingratingratingratingrating by: eric05/03/2013

Is this review helpful?


So Easy To Install! Looks And IsWay Better TheN The 200 DollarFactory One From Toyota. 78823



Ask the Experts about this Tow Ready Custom Fit Vehicle Wiring
Expert Answers about Replacement Multi-Plug 7-Way and 4 Pole Trailer Connector - 20137                                             Do you have a question about this Custom Fit Vehicle Wiring?


  • Trailer Wiring and 4-Pole to 7-Pole Adapter for a 2010 Toyota Tacoma
  • For your 2010 Toyota Tacoma, I recommend using the Tow Ready Custom Fit Vehicle Wiring, # 118496, and our electric brake controller installation kit, # ETBC7. These items will provide all of the wiring connectors for installation of a 4-Way and 7-Way RV connector at the back of your Tacoma. I have included the instructions and videos for the custom wiring, # 118496, and # ETBC7 kit, that should prove helpful. To install and wire the 7-Way connection, plug the 4-pole adapter coming out of t
    view full answer...

  • Recommended Replacement 4-Way and 7-Way Wiring for a 2003 Toyota Tundra Without a Tow Package
  • The # 20137 would not be a fit for your 2003 Toyota Tundra, as it will only work on models with the factory tow package. In order to first replace the 4-Way plug, you will need to use a hardwire kit, like part # 119176KIT. The # 119176KIT wiring kit is a universal application, so vehicle specific instructions are not available for your Tundra. You will need to use the included circuit tester to determine which wires behind your vehicle taillights are performing which function, and connect
    view full answer...

  • What 7-Way And 4-Way Connector Will Replace Existing 7-Way On 2008 Toyota Tundra With Tow Package
  • For your 2008 Toyota Tundra with factory tow package you will need to use the Hopkins Replacement Multi-Tow 7-Way and 4-Way Trailer Connector # HM11143395. This will plug into your factory tow package wiring harness and give you a 7-way and 4-way at the rear of your vehicle. It looks just like the # 20137 picture, but has a different connector for the 2008 to 2010 Toyota Tundra. The Tow Ready Replacement Multi-Plug 7-Way and 4 Pole Trailer Connector, part # 20137, is for the 2003 to 2006 To
    view full answer...

  • What Parts are Need to Add a 7-Way Trailer Connector to a 2001 Toyota Tundra
  • I do have a solution for you. In order to add a 7-Way wiring harness to your 2001 Toyota Tundra, you will need to start by adding a 4-Way, # 118378, if you need one. I have included a link to the installation instructions for this harness for you to view. With a 4-Way installed (or using an existing 4-Way if applicable) you will then need to install a 4 and 7 Way Installation Kit, # ETBC7. This kit includes everything you will need to install a functioning 7-Way on your truck. I have included
    view full answer...

  • Will Hopkins 7-Way and 4-Way Trailer Connector # 43385 Fit a 2006 Toyota 4Runner with Factory 7-Way
  • The Replacement Multi-Plug 7-Way and 4 Pole Trailer Connector, part # 20137 will fit your 2006 Toyota 4Runner with the factory 7-Way tow package. You will want to check the two connectors that are on your vehicle near the hitch to see if they match the connectors that are pictured on the product page of the Hopkins # 43385 connector. See photo.
    view full answer...

  • Trailer Wiring Harness for a 2003 Lexus GX470
  • First, the Replacement Multi-Plug 7-Way and 4 Pole Trailer Connector, # 20137, that you have referenced is for a 2003 Lexus GX470 that came with a tow package and needs to have a new 7-Way to replace a broken one. Since your GX470 did not come with a 7-Way, you will not be able to use this harness. You have mentioned that you hardwired a 4-Way and it caused a fault code to appear. Was it the # 119176KIT harness? You may have been getting that fault code if the harness you used was not a power
    view full answer...

  • Availability of a Replacement Trailer Wiring Connector for a 2003 Toyota Tundra with Tow Package
  • The Tow Ready Wiring Harness, # 20137, will connect to the factory connectors on the 2003 Toyota Tundra, but the receptacle does not fit in the factory location. This is the only replacement harness that we offer for the 2003 Toyota Tundra. I have included a link to the installation details for you.
    view full answer...

  • Will the Tow Ready Multi-Plug # 20137 Replace a Powered Converter on 2003 Lexus GX470
  • Tow Ready tells me that most likely the 20137 will work on your Lexus GX470. You can confirm this before purchasing by having a helper activate the various lighting functions while you test the connectors under the vehicle with a circuit tester like part # 40376. Activate the left turn signal, and test the various pins on the connector. You should locate one pin that will make the tester light up. Do the same with the right turn and the running lights. If this checks out, the 20137 will work
    view full answer...

  • Parts Needed to Add a 7-Way Trailer Connector to a 2005 Toyota Tundra
  • The Multi-Plug, # 20137, is designed as a replacement if your 2005 Toyota Tundra came with a factory tow package that included the harness from the factory. To add a 7-Way to a truck that did not have the factory tow package, you would first need to install a 4-Way, # 119176KIT. I have included a link to the isntallation details for you to view. This converter will take the separate turn and brake signals on the truck and make them a combined signal for use with the trailer. After you in
    view full answer...

  • Installing a Brake Controller on 2005 Toyota Tundra
  • The factory installed brake controller connector should be a white plug located on the left side under the drivers side dash on your 2005 Toyota Tundra Dual Cab. I have included a photo and a video that shows the location of the plug on another Toyota Tundra at the 8 second mark. This plug may not be there if your vehicle did not come with the factory tow package. The Multi-Plug, # 20137, is designed as a replacement if your vehicle came with a factory tow package that included the harness f
    view full answer...

  • Replacement Factory 7-Way Turn Signal Causing All Trailer Lights to Activate on a 2003 Sequoia
  • There is a possibility that the Replacement Multi-Plug 7-Way and 4 Pole Trailer Connector, # 20137, that you used to replace your factory connector could be wired incorrectly or have a short in it. The best way to determine this is to use a circuit tester, like part # 3808, and check the function of the 7-Way and 4-Way connectors without a trailer connected. This will eliminate the possibility that there is a wiring issue on the trailer causing the problem you are seeing. If the harness shows
    view full answer...

  • Only Right Turn/Brake Lights Work After Installing Trailer Wiring Harness on a 2003 Toyota Sequoia
  • In order for the trailer connector # 20137 to work, your 2003 Toyota Sequoia would need to have been equipped with a factory 7-Way trailer connector. If it never had a factory 7-Way, even though the connection points are there, the harness will not be fully functional. You may be able to take the vehicle to a dealer to have the missing components installed to make it fully functional. Also it is possible that some relays or fuses would need to be installed in order for the connector to function.
    view full answer...

  • Troubleshooting Replacement Multi-Plug 7-Way Connector # 20137 on 2003 Toyota Sequoia
  • We have seen this issue before on a 2003 Toyota Sequoia. We found that the wiring of the factory installed connector was possibly wired differently at the factory. We found that the # 20137 you have matches the specs given by Tow Ready. I have attached a photo that shows the 20137 connector and its functions. I have also linked you to a question and answer page concerning the 20137 and a 2003 Toyota Sequoia. There are a couple of ways you can fix this problem. The easiest way to fix this is
    view full answer...

  • Adding a 7-Way Trailer Connector to a 2004 Toyota Sequoia without Factory 7-Way
  • First, if your 2004 Toyota Sequoia did not come with a factory installed 7-Way trailer connector then replacement connector # 20137 is not going to fit. The connection points will not be present to plug it in. If no factory harness is present you will need to hardwire in a 7-Way. To hardwire in a 7-Way you will need 2 parts, 4-Way flat harness # 46365. Then to add a 7-Way you will need # ETBC7. I have included links that explain the ETBC7 installation for you. It is odd that your Sequoia
    view full answer...

  • Will Replacement Multi-Tow 7-Way for Toyota Vehicles Mount In an Accessible Location
  • This part comes with a mounting bracket so you can mount it wherever you need to in order to have access to it. It will plug into factory connectors and not require any hard wiring.
    view full answer...


Toyota Tundra Accessories


Info for this part was:


Photos by:
Theodore B

Expert Research:
Michael L

Expert Research:
Robert G

Expert Research:
Michael H

Expert Research:
Jeff D

Expert Research:
Jameson C

Expert Research:
John H

Expert Research:
Jeffrey L

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