T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Ask the Experts about this Tekonsha Custom Fit Vehicle Wiring

• Is a Relay Required for a Wiring Harness on a 2020 Acura MDX
  While you are correct that a wide variety of trailer wiring harnesses do require the installation of a relay, this is not the case for your 2020 Acura MDX. I recommend going with one of our Tekonsha wiring kits because we have found that their converter boxes tend to be the most reliable. For a 4-Way plug you need the T-One # 118628 but for a 7-Way plug you need the T-One # 118289 for a 7-Way plug. It is worth noting that even though you don't install any relays, you do need to install...
  view full answer...
• What is Converter Box for On Trailer Wiring Harnesses for 2018 Acura MDX
  The black converter boxes you see on the trailer wiring harnesses for your 2018 Acura MDX are needed because the vehicle has a separate wiring system. This means that the brake and turn signals are sent along separate wires. Since standard trailer wiring uses the stop and turn signals on the same wire, a converter module is needed to combine these signals. The powered converter also helps to safeguard the factory wiring on the Acura and ensure that there is enough power to activate the...
  view full answer...
• Does the Trailer Wiring Bracket of the 75225 on a 2016 Acura MDX Fit Below Rear Bumper
  Actually the trailer wiring bracket of the Draw Tite hitch part # 75225 that you referenced comes out right under the rear bumper of a 2016 Acura MDX. If you check out the picture I attached I pointed out the bracket with a red arrow and you can see it right under the bumper. For a bracket to attach to the bracket on the hitch you would want the part # 18144 for use with the # 118628 which is a fit for your 2016 Acura MDX.
  view full answer...
• Do I Need Relays From the Dealer for the Trailer Wiring to Work on a 2016 Acura MDX
  The additional relay that you mentioned in a tech tip was an isolated incident that should not be a problem on your 2016 Acura MDX. I spoke with two of the lead techs at Tekonsha and neither of them have ever heard of this issue before therefore, I think it is safe to say that the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # 118628 has everything that you need and you don't have to go to the dealer for any relays. There are however fuses included with the kit you...
  view full answer...
• Recommended Trailer Wiring Harness for 2018 Acura MDX
  The wiring harness I recommend for your 2018 Acura MDX is the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118628 because of its easy install. You will only need to plug in the connector at the rear of your Acura and insert the included fuses. Using Trim Pad Remover # ALL648544 will make it much easier to remove the panels in the rear of your MDX so you can make the necessary connections, and it is also recommended you use Dielectric Grease for Electrical Connectors...
  view full answer...
• 4-Way and 7-Way Trailer Wiring Recommendation for Towing with a 2018 Acura MDX
  To start off you need a 4-Way connector on your 2018 Acura MDX. I recommend the Tekonsha T-One # 118628 because we have found the Tekonsha wiring to be the most reliable and it has the highest amp ratings so it can deliver more power to the trailer lights. Then to add a 7-Way connector you need to install the Universal Wiring Kit # ETBC7. This includes the adapter as well as all of the wiring and connectors needed to add a brake controller to your Acura MDX. If you don't already have...
  view full answer...
• Does T-One 4-Way Wiring Harness for 2019 Acura MDX Support Reverse Light Function
  The T-One Vehicle Wiring Harness # 118628 you referenced for your 2019 Acura MDX only carries the running lights and turn/brake light functions but we do have a way for you to add the reverse light function as well. Since all 4-Way wiring harnesses like the T-One carry these same functions you will need to use an adapter like the Tow Ready # 20036 which changes your 4-Way to a 5-Way that adds the reverse light function to the extra pin. Simply us the quick-splice to connect the blue...
  view full answer...
• Does Battery of 2018 Acura MDX Have to Be Disconnected to Install Trailer Wiring
  Normally it's always a good idea to disconnect the vehicle battery any time you are working on anything electrical, but for the Tekonsha wiring kit part # 118628 there is no mention of disconnecting the battery prior to installing the kit so it would not be needed.
  view full answer...
• Can 12 Volt Circuit of Trailer 7-Way Keep Trailer Battery Topped Off
  Yes the 12 volt accessory circuit of a 7-way trailer wiring connector can keep a trailer house's battery topped off. Basically you'd run 10 gauge wire like part # 10-1-1 to the battery's positive battery post and you'd be set.
  view full answer...
• Recommended Cargo Carrier and Lighting for 2014 Acura MDX
  Everything looks perfect! Starting with the wiring harness, the Tekonsha T-One Vehicle Wiring Harness # 118628 that you referenced is confirmed to fit your 2014 Acura MDX and is exactly the harness that I would recommend. This custom-fit harness will install by connecting directly to the built-in port behind the driver side trim panel. This will give you a 4-Way at the rear of your MDX to connect with and power a trailer's signal lights. I have attached an installation video on your...
  view full answer...
• Is Relay Required to Install Wiring Harness in 2018 Acura MDX
  The note you are referencing in regard to the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118628 specifically says the relay is "needed" so it is required in order to activate the tow package on your 2018 Acura MDX. The reason it may be necessary to see your Acura dealer is because your vehicle may or may not have the relay. The relays are required to activate the tow package and it looks like this relay would be located in the fuse box under the hood of your Acura,...
  view full answer...
• Recommendation for Trailer Hitch and Wiring on a 2020 Acura MDX
  It can be a little challenging to find a good way to attach a wiring connector to a trailer hitch that has the hidden crosstube so since it sounds like you're wanting to tow with your 2020 Acura MDX I do recommend going with the Draw-Tite # 75225 because they do have that attached bracket to make it a whole lot easier plus it looks really clean too. For wiring it's hard to beat the T-One # 118628 simply because it has the highest amp ratings and we have found the Tekonsha wiring harnesses...
  view full answer...
• Will Curt C13146 Class III Hitch FIt 2020 Acura MDX With Donut Spare Stowed Under Vehicle
  You're correct. As long as your MDX has the temporary or 'donut' spare tire stowed under the vehicle, the Curt Class III # C13146 will work great. Space is tight under that vehicle, which is why a 20 inch spare would interfere with the hitch. If you'll be towing with the hitch, you'll need a couple of other accessories to complete your towing setup. For a trailer wiring harness, use # 118628. You'll also need a # 2753 ball mount and # 19261 for a 1-7/8 or # 63845 for a 2 inch trailer...
  view full answer...
• Alternative to etrailer Trailer Hitch Receiver for 2017 Acura MDX
  There is - as of this writing - a long scheduled wait time for the etrailer Trailer Hitch Receiver # e98840 that fits your 2017 Acura MDX, but we do have an alternative for you. What I recommend instead is the Curt Trailer Hitch Receiver # C13146. This is the exact same hitch, with the only difference being it has a more glossy coat than the etrailer hitch; they are otherwise the same, including the installation. So that's the route I recommend going to add a hitch to your 2017...
  view full answer...
• Will etrailer Trailer Hitch Receiver Fit 2017 Acura MDX With Full Size Spare
  As long as the spare tire uses an 18" or smaller wheel, it will still fit after the etrailer Trailer Hitch Receiver # e98840 you were looking at is installed on your 2017 Acura MDX. If you have a spare tire with larger than an 18" wheel you will need to purchase a compact spare tire from your local Acura dealer, as none of the trailer hitch receivers offered for your vehicle will work with a wheel larger than 18". The etrailer # e98840 you were looking at is a great option due to...
  view full answer...
• Difference Between Curt and etrailer Trailer Hitch Receivers for 2019 Acura MDX
  The only difference between the Curt Trailer Hitch Receiver # C13146 and etrailer Trailer Hitch Receiver # e98840 for your 2019 Acura MDX are the finishes. The Curt has a glossy black finish while the etrailer hitch has a matte black finish. The style you like is really just personal preference but the matte black finish of the etrailer hitch tends to hide minor nicks and scratches better than the glossy finish of the Curt. Other than that, the two hitches offer the same bolt-on...
  view full answer...
• Trailer Hitch for 2017 Acura MDX SH-AWD
  Yes I recommend the Draw-Tite Class III - Item # 75225. The hitch is a custom fit hitch and mounts to the directly to the frame rails. If you are planning on towing a trailer I also recommend T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector Item # 118628 and the Tow Ready Mounting Bracket 4-Pole Flat Item # 18144 I have attached links for the Draw-Tite Hitch and Tekonsha T-One wiring harness on the 2017 Acura MDX SH-AWD to help walk you through the instillation
  view full answer...
• Does Installation of etrailer e98840 Hitch Receiver on 2020 MDX Require Any Modifications to Body
  No, there isn't any lowering of the exhaust system or any other type of modifications to the undercarriage when installing the etrailer # e98840; it's actually one of the easier installations and should take roughly 30 minutes to complete. I've linked an installation video we did on a 2019 MDX that you might find helpful to follow along with during the process. If you're going to be towing with this hitch, you'll also need a wiring harness, ball mount and hitch ball. For a wiring harness...
  view full answer...
• Lock N Roll Hitch for 2017 Acura MDX Plus 7-Way Trailer Wiring Harness
  For a Lock N Roll articulating trailer hitch for the vehicle side that fits a 2 inch hitch you'd want the part # 336VS501 to match your trailer and then for wiring you'd want the # 118628 for an easy to install and very reliable setup. Now if your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way. If you do have trailer brakes you would need the # ETBC7 instead of the # 37185 and a brake controller. This kit comes with...
  view full answer...
• Adding a 7-Way Trailer Connector and Brake Controller to a 2015 Acura MDX
  For many vehicles, including your 2015 Acura MDX, there isn't a plug and play type of 7-Way trailer connector so one has to be hardwired in. This is because on those vehicles the vehicle itself is not set up for a 7-Way trailer connector. To add one you would first need to install a 4-Way which will provide the light functions for the trailer. For your MDX you can use # 118628 to add the 4-Way. Then to add the 7-Way you will need # ETBC7. The 4-Way will plug into the ETBC7 leaving...
  view full answer...
• Installation of Curt Trailer Wiring Harness on a 2018 Acura MDX
  Yes, installation of the Curt trailer wiring harness # C56192 will be essentially identical on your 2018 Acura MDX as it is in the video for the 2016, linked for reference. That same goes for the Tekonsha wiring harness # 118628 which also fits your MDX. Please note that with either harness it may be necessary to see a local Acura dealer for a relay. The relay is needed to activate the tow package wiring circuit.
  view full answer...
• Wiring Harness That Provides A 7 Round Pin For 2018 Acura MDX
  The Universal Installation Kit for Trailer Brake Controller # ETBC7 will provide you a 7 round pin for your 2018 Acura MDX. This kit includes everything you need to install an electric trailer brake controller and 7-way connector. If there's not an existing 4-way flat on your vehicle, you can purchase one separately. The 4-way # 118628 is required for you to install the # ETBC7. The plug-in location is behind the driver side trim panel. The Exterior mounted plug on some or all models...
  view full answer...
• Trailer Hitch for 2016 Acura MDX with 19 Inch Spare Tire
  None of the hitches we offer for the 2016 Acura MDX will accommodate a spare tire larger than 18 inches. This leaves you with a couple of solutions. If you absolutely need to have the hitch, you can contact your Acura dealer about getting a compact spare (which is what I'd do in your situation). If you only need the hitch for carrying a bike rack, you could use a hatch mounted bike rack instead. Hollywood Racks offers the Over-The-Top 3-bike rack as part # HRF2-3 which would allow you...
  view full answer...
• Hitch Recommendation for a 2016 Acura MDX
  The Curt Hitch part # C13146 that you referenced will fit the 2016 Acura MDX with and without the rear sport bumper trim so it will work for you. For trailer wiring you would want the part # 118628. If you plan on doing some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or 4 inch drop. It also includes a 1-7/8 inch ball, 2 inch ball, hitch pin with clip, and a...
  view full answer...
• Recommended Brake Controller And Wiring Harness For 2017 Acura MDX
  There is no confirmed brake controller harness for the 2017 MDX so if a brake controller is installed it will have to be a hard-wire installation. If you do not have a 4-way trailer connector at the back of your MDX that is the first step that will need to be taken. I recommend part # 118628. This harness plugs into the location behind the driver side trim panel in the rear cargo area. You can see where it is located in the attached installation video I have provided. A tech tip for...
  view full answer...
• Spare Tire Interference of Curt Class III C13146 Trailer Hitch Installed on 2015 Acura MDX
  During the installation, you'd need to temporarily remove the spare tire in order to gain better access to the hitch attachment points. Curt doesn't mention any spare tire clearance issues in the installation instructions, and my Curt representative tells me that if there is a small amount of interference, it wasn't considered significant enough to mention in the instructions. I've provided a photo showing an underside view of the rear of the vehicle showing how the hitch would sit in...
  view full answer...
• Hitch Recommendations for a 2015 Acura MDX
  For your 2015 Acura MDX you will want the Curt Hitch part # C13146. For trailer wiring you would want the part # 118628. For ball mounts I recommend the etrailer Ball Mount Kit # 989900. It comes with 2 ball mounts, 2 balls, a hitch pin with clip, and a carrying bag.
  view full answer...
• Will Installing Draw-Tite 75225 Interfere With Spare Tire of 2015 Acura MDX
  The Draw-Tite Class III, part # 75225 would not interfere with installing/removing the temporary spare tire on a 2015 Acura MDX. The available hitches are compatible with the 18 inch full-size spare tire, but not the 19 or 20 inch spare tires. If you'll be using the hitch for towing, you might also need the following to complete your towing system: Trailer wiring harness with 4 pole trailer connector, part # 118628 Ball mount, part # 2923 2 inch trailer ball, part # 63845 1-7/8...
  view full answer...
• Recommended Trailer Hitch and Towing Accessories for 2014 Acura MDX
  For your 2014 Acura MDX, I'd recommend the Curt Class III Trailer Hitch, part # C13146. When installed, the hitch will be almost completely concealed behind the bumper, with only the receiver tube being visible. There isn't a Class I hitch available for your vehicle, but the 2 inch receiver is much more popular, and will have a much better selection of hitch mounted accessories like bike racks and cargo carriers available. If you'll be towing with your hitch, you might be interested...
  view full answer...
• Recommended Trailer Hitch and Bumper Clearance for 2015 Acura MDX
  The Curt hitch, # C13146, has 2-3/4 inches from the center of the hitch pinhole to the outermost edge of the bumper and will have the most bumper clearance. The Hidden Hitch hitch, 87649, has 4-1/2 inches of clearance from the hitch pin hole to the end of bumper. Both hitches have 14 inches of clearance from the receiver to the ground. The Hidden Hitch is no longer manufactured, but has been replaced by Draw-Tite (sister company) # 75225. So if increasing the space between the bike...
  view full answer...