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Tekonsha
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2021 - 2023 Kia Rio
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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: | 118865 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.6 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: | YES |
| ELECTRICAL SYSTEM TYPE: | 2-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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The 2021-2023 KIA Rio Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118865 (Part #TK118865) fits the following vehicles: 2021-2023 Kia Rio. Always verify your specific year, make, and model before ordering.
Yes, the 2021-2023 KIA Rio Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118865 (Part #TK118865) is designed to fit the 2021-2023 Kia Rio.
The 2021-2023 KIA Rio Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118865 (Part #TK118865) fits 2021-2023 Kia Rio models. The 2023 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2021-2023 KIA Rio Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118865 (Part #TK118865) Drilling is required for installation. Basic hand tools are typically all you need.
The T-One® Connector is a vehicle-mounted wiring harness that provides a 4-flat connector for trailer towing. It intercepts the vehicle's taillight wiring on both driver and passenger sides, allowing you to connect a trailer's lighting system to your vehicle's electrical system. The connector includes a black box (mounted inside the cargo area), power and ground wires, and a 4-flat connector for storage in the rear cargo area when not in use.
The manual shows installation on a Kia Rio 5 Door. The manual does not provide a complete list of compatible vehicles, exclusions, or fitment conditions. Contact the manufacturer or consult a fitment database to confirm compatibility with your specific vehicle make, model, year, cab style, and bed length before purchasing.
You will need: trim panel remover, Phillips head screwdriver, drill with 3/32" drill bit, wire crimpers, wire cutters, and test probe. These tools are required to remove trim panels, disconnect and reconnect wiring, drill a ground hole, crimp wire connections, and test the installation.
The kit includes: double-sided tape for mounting the black box, cable ties for securing the harness, an eyelet and screw for the ground wire, a yellow fuse holder with a 15 amp fuse, two yellow butt connectors for wire connections, and a 4-flat connector. The connector end with the yellow wire (driver's side) and the connector end with the green wire (passenger's side) are also included.
Yes. Step 9 requires you to disconnect the vehicle's negative (−) battery cable before making power connections. Alternatively, if you do not disconnect the battery, you must remove the fuse from the yellow fuse holder provided. After installation is complete (step 12), reconnect the negative battery cable and install the 15 amp fuse into the fuse holder.
Open the rear hatch and partially remove the plastic threshold cover and cargo trays to locate the vehicle wiring in the rear cargo area. Starting on the driver's side, remove the Phillips head retaining screws from both driver and passenger trim panels, then partially pull back the trim panels to access the vehicle's wiring harness.
1. Disconnect the vehicle wiring harness from both driver and passenger taillight assemblies, being careful not to damage locking tabs. 2. On the driver's side, insert the T-One® Connector end with the yellow wire between the vehicle wiring connectors and lock into place, ensuring locking tabs are fully engaged. 3. On the passenger's side, insert the T-One® Connector end with the green wire between the vehicle wiring connectors and lock into place. Do not damage locking tabs and ensure connectors are fully inserted.
On the driver's side, mount the T-One® Connector black box using the double-sided tape provided. Secure the remainder of the T-One® Connector harness with the cable ties provided to prevent damage or rattling, being careful to avoid any areas that would cut or pinch the wire.
Yes. You must drill a 3/32" hole to secure the white ground wire. Locate a suitable grounding point near the black box, such as an existing ground stud, or drill a new 3/32" hole. Do not drill into the vehicle floor or bed. Before drilling, verify what is behind any surface to avoid damage to the vehicle or personal injury. Do not drill into any exposed surfaces. Clean dirt and rustproofing from the area before securing the white wire with the eyelet and screw provided.
Beginning from the front of the vehicle, route the black 12 ga. wire rearward along the frame rail, avoiding hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. If routing the wire through a grommet and along the exterior of the vehicle, be careful to avoid the same hazards. Connect the rear end of the black 12 ga. wire to the black power wire on the T-One® black box using the yellow butt connector provided.
The yellow fuse holder and 15 amp fuse protect the power circuit. The fuse holder is connected between the vehicle's positive (+) battery cable and the black 12 ga. power wire. In step 9, you cut the fuse holder wire, attach a ring terminal to the vehicle's positive battery cable, and connect the other end of the fuse holder to the black 12 ga. wire using a yellow butt connector. After installation, install the 15 amp fuse into the fuse holder (step 12).
Yellow wire: part of the driver's side taillight connector. Green wire: part of the passenger's side taillight connector. White wire: ground connection, secured to a ground stud or drilled hole near the black box. Black 12 ga. wire: power wire routed from the vehicle's positive battery cable (via fuse holder) to the black box. Black power wire on the black box: receives the incoming black 12 ga. power wire.
Always wear safety glasses and use all safety precautions during installation. Before drilling, verify what is behind any surface to avoid damage to the vehicle or personal injury. Do not drill into exposed surfaces. When routing the power wire, avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. Be careful not to pinch or cut wires when reinstalling trim panels. Read and follow all warnings and cautions printed on the vehicle's battery. Do not exceed the product's stated amperage ratings or the towing manufacturer's rating, as overloading circuits can cause fires.
After all connections are complete and the 15 amp fuse is installed, test and verify the installation with a test light or trailer. For the initial test, reset the vehicle electrical system by temporarily removing the key from the ignition. All connections must be complete for the T-One® Connector to function properly.
Store the 4-flat connector in the rear cargo area when not in use.
Trim panel remover, Phillips head screwdriver, drill with 3/32" bit, wire crimpers, wire cutters, and test probe.
Yes, disconnect the vehicle's negative (−) battery cable before making power connections, or remove the fuse from the yellow fuse holder if you do not disconnect the battery.
A 15 amp fuse is installed in the yellow fuse holder provided with the kit.
Do not exceed the lower of the towing manufacturer's rating (including in your vehicle owner's manual) or the specific amperage ratings stated on the product. Overloading circuits can cause fires.
1 compatible vehicles
| Year | Make & Model | Style | Notes |
|---|---|---|---|
| 2021 - 2023 | Kia Rio | Hatchback | Tow Harness T: Connector Assembly Drilling Required Install Time is 60 minutes |
Jennifer
Ordered online. Shipment arrived on time and with all the correct parts. Great customer service and friendly staff. Also, pricing was great!
May 22, 2023