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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: | 118800 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 0.85 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 |
|---|---|---|
| 2019 - 2024 | Acura RDX | Tow Harness T: Connector Assembly Drilling Required Install Time is 25 minutes With +12V Power Provision |
Yes, the 2019-2024 Acura RDX Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118800 (Part #TK118800) is designed to fit the 2019-2024 Acura RDX.
The 2019-2024 Acura RDX Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118800 (Part #TK118800) fits the following vehicles: 2019-2024 Acura RDX. Always verify your specific year, make, and model before ordering.
The 2019-2024 Acura RDX Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118800 (Part #TK118800) fits 2019-2024 Acura RDX models. The 2024 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2019-2024 Acura RDX Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118800 (Part #TK118800) Drilling is required for installation. Basic hand tools are typically all you need.
The T-One T-Connector (part number 118800-037) is shown to fit the Acura RDX in the manual. However, the manual does not provide a complete list of compatible vehicles. Before purchasing, verify that your vehicle has an 8-pin connector located behind the rear interior trim panel and confirm the presence of two separate red wires in that connector. If your vehicle has only one red wire, you will need part number 118804 instead.
If your vehicle's 8-pin connector has only one red wire, the T-One part number 118804 is required instead of the 118800. Before installation, inspect the wires going into the vehicle's 8-pin connector and confirm the presence of two separate red wires. If only one red wire is present, do not proceed with the 118800 installation.
You will need: trim panel remover, 10mm socket and ratchet or 10mm wrench, drill with 3/32" drill bit, 1/4" socket, wire crimpers, wire cutters, Phillips head screwdriver, and test-probe. These tools are required for trim removal, grounding, and electrical testing.
You must remove the lower interior trim panels on the driver's side only. The manual also requires temporary removal of the rear hatch, rear threshold plate, privacy screen, storage covers, and floor covering to access the 8-pin connector located behind the rear interior trim panel. Be careful not to damage clips when removing panels, and set aside all fasteners and removed items.
Drilling may be required depending on your grounding method. If you use Option 1 (existing ground stud on driver's side), no drilling is needed—you loosen the bolt, place the screw eyelet on the stud, and re-tighten. If you use Option 2 (new grounding point), you must drill a 3/32" hole near the connector in the vehicle's frame or crossmember. Do not drill into the vehicle floor or bed. Always verify what is behind any surface before drilling to avoid damage to the vehicle or personal injury.
If using Option 2 grounding, drill a 3/32" hole in the vehicle's frame or crossmember near the connector. Do not drill into the vehicle floor or bed. Clean dirt and rustproofing from the area before drilling, and verify what is behind the surface to avoid damage to the vehicle or personal injury.
The vehicle's 8-pin connector is located behind the rear interior trim panel. To access it, open the rear hatch, temporarily remove the rear threshold plate, privacy screen, storage covers, and floor covering. Open the rear door and fold the rear seat forward. Then partially remove the lower interior trim panels on the driver's side only. The 8-pin connector will be visible behind these panels.
You have two options. Option 1: On the driver's side, locate the existing ground stud, loosen the bolt, place the screw eyelet on the stud, and re-tighten the bolt. Make sure all other ground connections are secure when removing and reattaching the ground stud. Option 2: Locate a suitable grounding point near the connector such as the vehicle's frame or crossmember, clean the area, drill a 3/32" hole, and secure the white wire using the eyelet and screw provided. Do not drill into the vehicle floor or bed.
Mount the black box-module on a flat surface in an out-of-the-way place to prevent damage or rattling. The exact location is not specified in the manual, but it should be positioned to avoid interference with vehicle operation and to protect it from damage.
Secure the remainder of the harness with the cable ties provided to prevent damage or rattling. Be careful to avoid any areas that would pinch, cut, or melt the wire. When reinstalling trim panels, be careful not to pinch or cut the wires. Do not pinch the harness in the door latch.
Store the 4-flat connector in the rear cargo area when not in use. When in use, pull the 4-flat connector through the door and close the door. Be careful not to pinch the harness in the door latch.
The ground wire is white. It is secured using the eyelet and screw provided, either to an existing ground stud or to a new grounding point drilled in the vehicle's frame or crossmember.
The vehicle's 8-pin connector provides +12V power provisions. The manual requires inspection of this connector to confirm the presence of two separate red wires before installation. These red wires supply power to the T-One T-Connector system.
The manual does not state the specific amperage rating for the 118800. However, the manual clearly states: DO NOT exceed the lower of the towing manufacturer rating (including in your vehicle owner's manual) or the specific amperage ratings stated on the product itself. Check the product label and your vehicle's owner's manual for the exact amperage rating.
Always wear safety glasses and use all safety precautions during installation. Read and follow all warnings and instructions included with the product before beginning installation. Do not exceed the towing manufacturer rating or product amperage ratings, as overloading circuits can cause fires. Read, understand, and follow all warnings and instructions printed on the tow vehicle's battery. Verify what is behind any surface before drilling to avoid damage to the vehicle or personal injury.
All connections must be complete for the T-One T-Connector to function properly. Test and verify the installation with a test light or trailer once installed. For the initial test, reset the vehicle electrical system by temporarily removing the key from the ignition. Use a test-probe to verify proper electrical connections.
After reinstalling the plastic trim panels, threshold, storage covers, floor covering, and other items removed during installation, verify that you have not pinched or cut any wires. Ensure the harness is properly secured with cable ties and that no wires are exposed or at risk of damage. Perform the electrical test described in the installation instructions.
The 118800 fits the Acura RDX and vehicles with an 8-pin connector behind the rear interior trim panel containing two separate red wires. If your vehicle has only one red wire, you need part 118804 instead. Verify your vehicle's connector before purchasing.
You need: trim panel remover, 10mm socket/ratchet or wrench, 3/32" drill bit, 1/4" socket, wire crimpers, wire cutters, Phillips screwdriver, and test-probe.
Drilling is optional. If you use the existing ground stud on the driver's side (Option 1), no drilling is needed. If you create a new ground point (Option 2), you drill a 3/32" hole in the vehicle's frame or crossmember—never in the floor or bed.
The 8-pin connector is behind the rear interior trim panel on the driver's side. Access it by opening the rear hatch, removing the rear threshold plate, privacy screen, storage covers, and floor covering, then partially removing the lower interior trim panels.
The ground wire is white. Secure it to either an existing ground stud or a new 3/32" hole drilled in the vehicle's frame using the provided eyelet and screw.
The manual does not state the specific amperage rating. Check the product label and your vehicle's owner's manual. Do not exceed the lower of the towing manufacturer rating or the product's stated amperage rating.
Test with a test light or trailer once all connections are complete. Reset the vehicle electrical system by temporarily removing the ignition key. Use a test-probe to verify proper electrical connections.
Jennifer
The staff was able to quickly assist me with locating the correct product I needed. Shipping was really fast. Item arrived in 2 days. Will be using TowUniverse again!!
May 22, 2023
Total for 4 items:
$158.75
