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Tekonsha
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2007 - 2013 Acura MDX
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Tekonsha T-One connector (also referred to as T-Connector) wiring harnesses are the fastest and easiest way to add an electrical connector to the back of your vehicle. These connectors are used to link the wiring from your vehicle to the trailer when towing. Tekonsha T-One connectors feature custom designs to fit each vehicle make and model based on manufacturer specifications. Plus, the Plug & Play connectors on the end of the wires make it easy to install. No cutting or splicing!
Tekonsha offers the largest, most complete line of T-One connectors. To install a Tekonsha T-One wiring harness, simply locate your vehicle's wiring harness connector typically behind the vehicle taillight - unplug the connection and insert the T-Connector into the vehicle's harness. It's that easy! So what are you waiting for? Hit the road with the peace of mind only Tekonsha can provide. Life's a Journey. Stop Often.
| BRAND: | TEKONSHA |
| PART NUMBER: | 118424 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1 LBS |
| UNIVERSAL OR SPECIFIC FIT: | SPECIFIC |
| CIRCUIT PROTECTED: | YES |
| HARNESS TYPE: | MALE FEMALE |
| TERMINAL QUANTITY: | 4 |
| WIRE COLORS: | BROWN, GREEN, YELLOW, WHITE |
| WIRE QUANTITY: | 4 |
| WIRE GAUGE: | 16 GA. |
| POWER LEAD REQUIRED: | NO |
| ELECTRICAL SYSTEM TYPE: | 3-WIRE SYSTEM |
| HARDWARE INCLUDED: | YES |

Tekonsha is a leading manufacturer of electronic trailer brake controllers, pioneering the category in the 1970s. The lineup spans proportional units such as the Prodigy P3 and Prodigy iD, time-delayed controllers, the wireless Prodigy RF, plus vehicle-specific wiring harnesses, adapters and trailer brake components engineered for smooth, predictable stopping at any speed.
Tekonsha Engineering Company began in 1964 building RV steps and mirrors. Within a few years it had found its real calling, and by the 1970s Tekonsha was pioneering the manufacture of electronic trailer brake controllers, the product category that still defines the brand. More than half a century later it remains the reference name in trailer braking and is part of the Horizon Global group alongside Reese, Draw-Tite, Fulton, Bulldog and Wesbar.
A brake controller is the component that tells a trailer's electric brakes how hard to work and when, and getting that right is the difference between a controlled stop and a shove from behind. Tekonsha builds both major types. Proportional controllers use an internal accelerometer to sense how quickly the tow vehicle is slowing and apply trailer braking to match, so light braking stays light and hard braking is immediate. Time-delayed controllers ramp to a preset output over a fixed interval, a simpler and more economical approach that suits occasional towing.
The current brake controller range covers most of that ground. The Prodigy iD pairs with a phone through Tekonsha's EDGE technology for setup and monitoring, the P3 offers storable settings for multiple trailers and a trilingual colour LED display, the Prodigy P2 adds a dimmable display and boost mode for heavier loads, and the Voyager keeps operation simple and dependable. The Prodigy RF mounts to the trailer itself and controls wirelessly, which suits rental fleets and drivers who swap tow vehicles.
Installation is supported by vehicle-specific brake control harnesses that plug into a factory connector rather than requiring cut-and-splice wiring, along with mounting brackets and adapters. Matched controller bundles pair a unit with the correct harness. Products are tested to meet and often exceed published industry standards.
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1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2007 - 2013 | Acura MDX | Tow Harness T: Connector Assembly Uses all existing holes. No Drilling required Install Time is 20 minutes |
The 2007-2013 Acura MDX Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118424 (Part #TK118424) fits the following vehicles: 2007-2013 Acura MDX. Always verify your specific year, make, and model before ordering.
The 2007-2013 Acura MDX Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118424 (Part #TK118424) fits 2007-2013 Acura MDX models. The 2013 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 2007-2013 Acura MDX Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118424 (Part #TK118424) is designed to fit the 2007-2013 Acura MDX.
The 2007-2013 Acura MDX Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118424 (Part #TK118424) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The T-Connector 118424-037 is a vehicle electrical connector that integrates with your vehicle's factory electrical system to enable trailer lighting functions. It connects to your vehicle's grey electric junction box and provides a 4-flat connector outlet for trailer wiring. The system must be tested with a test light or trailer after installation to verify proper operation.
The manual does not specify which vehicle makes, models, or years are compatible with this T-Connector. The installation instructions reference a grey electric junction box and jack storage compartment in the rear cargo area, but do not list specific applications. Contact the manufacturer or your retailer to confirm fitment for your vehicle.
You will need: a trim panel remover, a ratchet, and a 10mm socket or wrench. The T-Connector kit includes double-sided tape for mounting the black connector box. You will also need rubbing alcohol and water to clean the mounting surface.
The kit includes the T-Connector assembly with a white connector end, a black connector box, a white wire with eyelet for grounding, a 4-flat connector wire, and double-sided tape for mounting the black box. All other components are factory parts on your vehicle.
The manual does not specify whether battery disconnection is required. However, it does state that for the initial test after installation, you should reset the vehicle electrical system by temporarily removing the key from the ignition. Consult your vehicle's owner's manual or the manufacturer for battery disconnection guidance.
The grey electric junction box is located in the rear cargo area on the driver's side. The manual instructs you to route the white T-Connector end up and behind the trim panel from the cargo area to reach the junction box. The exact location varies by vehicle; consult your vehicle's owner's manual if you have difficulty locating it.
On the driver's side, remove the access door on the trim panel, then open the rear cargo door. Remove the threshold, jack storage door, and pull back the black cargo liner. Set aside all removed items carefully to avoid damage. You will reinstall all of these items after the T-Connector is mounted.
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 directly into the mating connection in the grey electric junction box. The connection should be secure and complete.
On the driver's side underneath the trim panel, between the cargo area and the junction box, clean a flat area using a mixture of rubbing alcohol and water. Mount the black T-Connector box using the double-sided tape provided in the kit. Ensure the surface is clean and dry for proper adhesion.
Route the white wire with eyelet towards the center of the vehicle near the threshold area. Locate the existing ground stud. Using a 10mm socket or wrench, remove the bolt, place the white wire eyelet around the bolt, and re-tighten. Ensure all other ground connections remain secure during this process.
The manual does not provide a torque specification for the ground stud bolt. Consult your vehicle's owner's manual or the manufacturer for the correct torque value.
Route the 4-flat connector wire over to the jack storage area. When not in use, store the 4-flat wire in the jack compartment. Replace the black cargo liner after routing the wire.
Reinstall the jack storage door, access door, threshold, rear cargo door, and all other items removed during installation. Be careful not to pinch or cut the wires during reassembly. After reassembly, test and verify the installation with a test light or trailer before using the system.
Do not exceed the lower of your towing manufacturer's rating or these limits: maximum 1 stop/turn light per side (2.1 amps total), or maximum tail lights at 4.2 amps. Exceeding these limits can cause circuit overload and fires. Consult your vehicle's owner's manual and instruction sheet for additional information.
The T-Connector uses a white wire with eyelet for the ground connection. The white T-Connector end plugs into the vehicle's grey electric junction box. The 4-flat connector wire is routed to the jack storage area.
All connections must be complete before testing. Test and verify the installation using either a test light or by connecting an actual trailer. For the initial test, reset the vehicle electrical system by temporarily removing the key from the ignition, then restarting the vehicle. This ensures the system is properly initialized.
Wear safety glasses during installation. Be careful not to damage any parts when removing trim panels and cargo items. When removing and reattaching the ground stud, ensure all other ground connections remain secure. Do not pinch or cut wires during reassembly. Read and follow all vehicle warnings and installation instructions before beginning.
All connections must be complete for the T-Connector to function properly. Incomplete connections can prevent the trailer lighting system from working correctly and may cause electrical faults. Always verify that the white connector end is fully plugged into the junction box, the ground wire is securely attached, and the 4-flat connector is properly routed before testing.
The manual does not list specific vehicle makes or models. Confirm compatibility with the manufacturer or retailer before purchase, as the T-Connector requires a grey electric junction box and jack storage compartment in the rear cargo area.
The manual does not specify battery disconnection. Consult your vehicle's owner's manual. After installation, reset the electrical system by temporarily removing the ignition key.
No drilling is required. The T-Connector mounts using double-sided tape on a cleaned surface and connects to the existing grey electric junction box and ground stud.



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