











Trailer Wiring and Bracket w/ Light Tester For 07‑13 Acura MDX Plug & Play 4‑Flat Harness
Model: 118424 118144 20114Plug and Play T-One Wiring Harness Connector
4-Flat Mounting Bracket
4-Flat Car End Tester w/ LED Display
Fits The Following Vehicles:
2007 - 2013 Acura, MDX, All Styles
Wiring Kit Specs:
Part Number | 118424 |
Brand | Tekonsha |
Warranty | 1 Year |
Installation Instructions | ![]() |
Part Number | 118144 |
Fits | 4 Flat Connectors |
Brand | Tow Ready |
Mounts electrical connector to attachment bracket Includes screws and nuts Attractive point-of-purchase packaging |
|
Warranty | 1 Year |
Part Number | 20114 |
Fits | 4 Flat Connectors |
Brand | Tow Ready |
4-Flat Car End Tester w/LED Display Plug these testers into any car connector and you will have an instant test of running light circuits. |
|
Warranty | 1 Year |
Questions or Comments? Call 702-374-8999
Thank you for choosing Tekonsha, the most powerful name in trailer light wiring and brake control system. Our trailer wiring harness is vehicle specific, requires no splicing or cutting of the wires. Simply plug & play and your vehicle will be able to control trailers brake, turn and running lights. Trailer wiring kit comes with a 1 year warranty and everything necessary to install the trailer plug wiring. Tekonsha manufactures a wider range of different products for hooking up trailer lights to your Car Truck or SUV. T-One connectors work great with boat trailer wiring and utility trailer wiring. Typically those trailers will use the standard 4 flat plug which is what our T One connectors offer. If you have an RV Fifth Wheel or any other large type of trailer you will us a 7 pin trailer plug to control your electric trailer brakes. Tekonsha offers 7 pin trailer connector as well. Simply do a search above to see if there is a 7 wire trailer wiring available for hooking up your 7 way. If there is not you can use part number 85343 trailer wiring adapter to convert any 4-Flat into a 7-Way. In addition you will use part number 20506 which will include the rest of wiring needed for electric brake controls. You can also call us or email us any time and we will be able to provide information you need.
Partial list of fitment years:
07 08 09 10 11 12 13 2007 2008 2009 2010 2011 2012 2013
$65 67 $73.73 11% OFF
- Best Price on Web Guarantee
- Fastest Shipping
- FREE Shipping
- In Stock

We match lower prices from major authorized retailers for brand-new products in original packaging, provided the item is in stock. The competing seller must be an authorized, professional retail business; offers from
individuals, auctions, peer-to-peer sites, or unauthorized sellers don’t qualify. Used, refurbished, or open-box items are excluded.
Please see our full terms for details.
Verify Fitment
View products that fit your vehicle
Fits 's with the following styles:
View products that fit your vehicle
Fits 's with the following styles:
$73.73 $65 67
Questions? Call our Auto Experts at (877) 869-6690
Get it now, pay later
Select installments at checkout to split your purchase into 4 interest-free payments of $16.25 every 2 weeks.
- No fees, ever.
- No impact on your credit score.
Payment options are offered by Affirm and are subject to an eligibility check and might not be available in all states. CA Residents: Loans by Affirm Loan Services, LLC are made or arranged pursuant to a California Finance Lender license.
Installments in partnership with
.
Affirm and its offerings are supported in English only. Translations are not provided by Affirm.
Product Details
- Brand: Tekonsha
- Model: 118424 118144 20114
- Includes: T-One T-Connector Custom Harness, Mounting Bracket, 4-Flat Car End Tester
Compatibility Chart
Year Range | Make | Model | Style |
---|---|---|---|
Loading... |
Specification | |
Circuit Protected | Yes |
Hardware Included | Yes |
Harness Type | 4-Way Flat (Vehicle Side) |
Terminal Quantity | 4 |
Universal Or Specific Fit | Specific Fit |
Wire Colors | Brown, Green, Yellow, White |
Wire Quantity | 4 Wires |
Be the first to ask a question.
Description
Plug and Play T-One Wiring Harness Connector
4-Flat Mounting Bracket
4-Flat Car End Tester w/ LED Display
Fits The Following Vehicles:
2007 - 2013 Acura, MDX, All Styles
Wiring Kit Specs:
Part Number | 118424 |
Brand | Tekonsha |
Warranty | 1 Year |
Installation Instructions | ![]() |
Part Number | 118144 |
Fits | 4 Flat Connectors |
Brand | Tow Ready |
Mounts electrical connector to attachment bracket Includes screws and nuts Attractive point-of-purchase packaging |
|
Warranty | 1 Year |
Part Number | 20114 |
Fits | 4 Flat Connectors |
Brand | Tow Ready |
4-Flat Car End Tester w/LED Display Plug these testers into any car connector and you will have an instant test of running light circuits. |
|
Warranty | 1 Year |
Questions or Comments? Call 702-374-8999
Thank you for choosing Tekonsha, the most powerful name in trailer light wiring and brake control system. Our trailer wiring harness is vehicle specific, requires no splicing or cutting of the wires. Simply plug & play and your vehicle will be able to control trailers brake, turn and running lights. Trailer wiring kit comes with a 1 year warranty and everything necessary to install the trailer plug wiring. Tekonsha manufactures a wider range of different products for hooking up trailer lights to your Car Truck or SUV. T-One connectors work great with boat trailer wiring and utility trailer wiring. Typically those trailers will use the standard 4 flat plug which is what our T One connectors offer. If you have an RV Fifth Wheel or any other large type of trailer you will us a 7 pin trailer plug to control your electric trailer brakes. Tekonsha offers 7 pin trailer connector as well. Simply do a search above to see if there is a 7 wire trailer wiring available for hooking up your 7 way. If there is not you can use part number 85343 trailer wiring adapter to convert any 4-Flat into a 7-Way. In addition you will use part number 20506 which will include the rest of wiring needed for electric brake controls. You can also call us or email us any time and we will be able to provide information you need.
Partial list of fitment years:
07 08 09 10 11 12 13 2007 2008 2009 2010 2011 2012 2013
Get Expert Help
Trailer Wiring and Bracket w/ Light Tester For 07-13 Acura MDX Plug & Play 4-Flat Harness Install Notes
Installation Instructions for T-Connector Adapter
Part Numbers:
- 118424
Tools Required:
- Trim Panel Remover
- 10mm Socket & Ratchet or Wrench
Step-by-Step Instructions:
-
Access the Rear Cargo Area:
- Open the vehicle’s rear tailgate.
- On the driver’s side, remove the access door on the trim panel.
- Open the rear cargo door and remove the threshold, jack storage door, and pull back the black cargo liner.
- Set aside all items removed, being careful not to damage any parts.
-
Locate the Electric Junction Box:
- Inside the cargo area, locate the vehicle’s grey electric junction box behind the trim panel.
-
Connect the T-Connector:
- Starting from the cargo area, route the white T-Connector end up and behind the trim panel to the junction box area.
- Plug the white T-Connector end into the mating connection in the electric junction box.
-
Mount the T-Connector Black Box:
- On the driver’s side, under the trim panel area between the cargo area and the junction box, clean a flat surface using a mixture of rubbing alcohol and water.
- Mount the T-Connector’s black box using the provided double-sided tape.
-
Ground the White Wire:
- Route the white wire with the eyelet toward the center of the vehicle near the threshold area.
- Locate the existing ground stud and remove the bolt using a 10mm socket or wrench.
- Place the white wire with the eyelet around the bolt and re-tighten.
Warning:
- Ensure all other ground connections are secure when removing and reattaching the ground stud.
-
Route and Store the 4-Flat Connector:
- Route the 4-flat connector over to the jack storage area.
- Replace the black cargo liner and store the 4-flat wire in the jack compartment when not in use.
-
Reassemble the Vehicle:
- Reinstall the jack storage door, access door, threshold, rear cargo door, and any other items removed during installation.
- Be careful not to pinch or cut the wires.
-
Test the Installation:
- Ensure all connections are complete for the T-Connector to function properly.
- Test and verify the installation with a test light or trailer.
- For the initial test, reset the vehicle's electrical system by temporarily removing the key from the ignition.
Specifications:
- Max. stop/turn light: 1 per side (2.1 amps)
- Max. tail lights: (4.2 amps)
Safety Notes:
- Overloading circuits can cause fires. Do not exceed the towing manufacturer’s rating or the unit specifications.
- Follow all warnings and installation instructions carefully.
Manufacturer Notes:
- Refer to the vehicle owner’s manual and the instruction sheet for additional guidance.
Installation Instructions for T-Connector Adapter
Part Numbers:
- 118424
Tools Required:
- Trim Panel Remover
- 10mm Socket & Ratchet or Wrench
Step-by-Step Instructions:
-
Access the Rear Cargo Area:
- Open the vehicle’s rear tailgate.
- On the driver’s side, remove the access door on the trim panel.
- Open the rear cargo door and remove the threshold, jack storage door, and pull back the black cargo liner.
- Set aside all items removed, being careful not to damage any parts.
-
Locate the Electric Junction Box:
- Inside the cargo area, locate the vehicle’s grey electric junction box behind the trim panel.
-
Connect the T-Connector:
- Starting from the cargo area, route the white T-Connector end up and behind the trim panel to the junction box area.
- Plug the white T-Connector end into the mating connection in the electric junction box.
-
Mount the T-Connector Black Box:
- On the driver’s side, under the trim panel area between the cargo area and the junction box, clean a flat surface using a mixture of rubbing alcohol and water.
- Mount the T-Connector’s black box using the provided double-sided tape.
-
Ground the White Wire:
- Route the white wire with the eyelet toward the center of the vehicle near the threshold area.
- Locate the existing ground stud and remove the bolt using a 10mm socket or wrench.
- Place the white wire with the eyelet around the bolt and re-tighten.
Warning:
- Ensure all other ground connections are secure when removing and reattaching the ground stud.
-
Route and Store the 4-Flat Connector:
- Route the 4-flat connector over to the jack storage area.
- Replace the black cargo liner and store the 4-flat wire in the jack compartment when not in use.
-
Reassemble the Vehicle:
- Reinstall the jack storage door, access door, threshold, rear cargo door, and any other items removed during installation.
- Be careful not to pinch or cut the wires.
-
Test the Installation:
- Ensure all connections are complete for the T-Connector to function properly.
- Test and verify the installation with a test light or trailer.
- For the initial test, reset the vehicle's electrical system by temporarily removing the key from the ignition.
Specifications:
- Max. stop/turn light: 1 per side (2.1 amps)
- Max. tail lights: (4.2 amps)
Safety Notes:
- Overloading circuits can cause fires. Do not exceed the towing manufacturer’s rating or the unit specifications.
- Follow all warnings and installation instructions carefully.
Attention:
This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
Technical Support:
For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Warranty Information:
For complete warranty instructions, please download the full installation PDF.