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2018 - 2021 Hyundai Kona
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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: | 118883 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.5 LBS |
| UNIVERSAL OR SPECIFIC FIT: | SPECIFIC |
| CIRCUIT PROTECTED: | YES |
| HARNESS TYPE: | MALE FEMALE |
| TERMINAL QUANTITY: | 4 |
| WIRE COLORS: | BROWN, GREEN, WHITE, YELLOW |
| WIRE QUANTITY: | 4 |
| WIRE GAUGE: | 18 AWG, .85 AVSS |
| POWER LEAD REQUIRED: | YES |
| 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 |
|---|---|---|
| 2018 - 2021 | Hyundai Kona | Tow Harness T: Connector Assembly Drilling Required Install Time is 60 minutes |
Yes, the 2018-2021 Hyundai Kona Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118883 (Part #TK118883) is designed to fit the 2018-2021 Hyundai Kona.
The 2018-2021 Hyundai Kona Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118883 (Part #TK118883) fits the following vehicles: 2018-2021 Hyundai Kona. Always verify your specific year, make, and model before ordering.
The 2018-2021 Hyundai Kona Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118883 (Part #TK118883) fits 2018-2021 Hyundai Kona models. The 2021 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2018-2021 Hyundai Kona Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118883 (Part #TK118883) Drilling is required for installation. Basic hand tools are typically all you need.
Part number 118883 is designed for Hyundai Kona. However, the manual states that specific application years and trim levels should be verified on the Horizon Global website at www.horizonglobal.com before purchase, as fitment varies by model year and configuration.
Required tools: safety glasses, Phillips screwdriver, wire stripper, wire crimper, 10 mm socket, ratchet, drill with 3/32" drill bit, heat gun (for heat shrink connectors), and fish wire. The hardware kit includes perma seal butt connectors, ring terminals, #8 screws, 15 amp fuse, double-sided tape, fuse holder, test light, and 6" wire ties.
Yes. You must locate, disconnect, and isolate the vehicle's negative battery cable before beginning installation. The negative cable is disconnected again at step 11 before connecting the fuse holder to the positive battery terminal. Reconnect the negative cable at step 15 after the fuse is installed.
Yes. A 3/32" hole must be drilled to secure the white ground wire using the eyelet and screw provided. You may use an existing ground stud if available. Do not drill into the vehicle floor, bed, or any exposed surfaces. Verify what is behind any surface before drilling to avoid damage to the vehicle or personal injury.
The product uses a 15 amp fuse, which is installed in the yellow fuse holder provided in the hardware kit. The fuse is connected to the positive battery cable via a ring terminal and heat shrink butt connector.
Always wear safety glasses during installation. Do not touch the negative battery terminal to the positive battery terminal, as this can cause serious injury and damage to the vehicle's electrical system. Do not exceed the towing or amperage ratings stated on the product or in your vehicle owner's manual. Overloading circuits can cause fires. When routing wires, avoid hot pipes, heat shields, fuel tank, and other points that may pinch or break the wire.
After installation is complete, 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. Reconnect the negative battery cable and install the 15 amp fuse before testing.
Clean the 4-Way flat connector after each use. Perform a pre-trip inspection of the 4-Way flat harness to ensure no damage to terminals and connection points. Ensure the harness does not get pinched in door latches, trailer connection points, or contact the road surface. Clean the connection and add dielectric grease (sold separately) to the terminal pins.
Part number 118883 is a T-One® Connector manufactured by Horizon Global. It is a trailer wiring harness that connects your vehicle's electrical system to a trailer's lighting system. The connector includes a black module box that interfaces with your vehicle's taillight wiring and provides a 4-Way flat connector for trailer connection.
Yes, but with a critical restriction: if your vehicle is equipped with the Start/Stop option, you must connect the module only to the main vehicle battery. Do not connect the module power wire to the support battery. Failure to connect to the vehicle main battery may result in damage to the vehicle's electrical system.
The installation difficulty is rated as Expert. Installation times are listed on Horizon Global's website or in downloadable application guides. The difficulty level is based on time and effort involved and may vary depending on installer expertise and vehicle condition. Proper tools and equipment are required.
Yes. The first step is to open the rear hatch. On the driver's side, you must remove the plastic threshold cover, cargo trays, and side panel to expose the vehicle's taillight wiring harness. Be careful not to break the mounting tabs when removing these components.
The T-One® Connector uses the following wire colors: brown and red wires connect to the driver's side taillight connector; yellow wire connects to the driver's side taillight in the bumper; green wire connects to the passenger's side taillight in the bumper; white wire is the ground wire that connects to a ground stud or drilled hole; black 12 ga. wire connects from the positive battery terminal through the fuse holder to the black power wire on the module's black box.
The connection sequence is: (1) Disconnect the vehicle's negative battery cable. (2) Cut the fuse holder wire and attach the ring terminal to the vehicle's positive (+) battery cable. (3) Connect the other end of the fuse holder to the black 12 ga. wire using a yellow heat shrink butt connector. (4) Route the black 12 ga. wire from the front of the vehicle rearward along the frame rail, avoiding hot pipes, heat shields, and fuel tank. (5) Route the wire through the slit grommet into the vehicle body. (6) Connect the other end to the black power wire on the module's black box using another yellow heat shrink butt connector. (7) Heat each shrink connector from center outward until the tubing shrinks and sealant flows, then allow to cool. (8) Reconnect the negative battery cable and install the 15 amp fuse.
Mount the T-One® Connector black box behind the rear bumper fascia on the driver's side, from inside the cargo area behind the partially removed trim panel close to the grommet. Use the double-sided tape provided. Before mounting, clean the flat mount surface area with a 50-50 mixture of rubbing alcohol and water to ensure proper adhesion.
After routing the yellow and green wires through the slit grommet, add silicone rubber (not included with the product) to seal the grommet where it was slit. Ensure the silicone and grommet make a tight seal to prevent moisture or dirt from entering the vehicle.
The yellow and green wires are routed as follows: (1) From the driver's side, locate the grommet underneath the exposed area after removing the threshold cover and side panel. (2) Carefully slit the grommet so both wires and the T-One® Connector ends pass through to the other side of the vehicle body. (3) Route the yellow wire harness underneath the vehicle through the opening between the bumper and body to the driver's side taillight in the bumper. (4) Route the green wire harness to the passenger side, down and underneath the vehicle, then up through the opening between the bumper and body to the passenger's side taillight in the bumper. (5) When routing along the exterior, avoid hot pipes, heat shields, fuel tank, and other points that may pinch or break the wire.
The connection sequence is: (1) Disconnect the vehicle's taillight wiring harness on the driver's side. (2) Insert the T-One® Connector end containing brown and red wires between the vehicle and driver's side taillight connector. (3) Ensure all connector surfaces are clean and free of dirt. (4) Route yellow and green wires through the grommet. (5) Insert the yellow wire connector end between the vehicle and driver's side taillight connector in the bumper. (6) Insert the green wire connector end between the vehicle and passenger's side taillight connector in the bumper. (7) All connector surfaces must be clean and free of dirt for proper function.
On the passenger's side underneath the vehicle, locate the black environmental cover. Using a trim panel tool, carefully remove the 3 plastic clips without damaging them. Using a 10 mm socket, remove the plastic nut and set the cover aside. This provides access to route the green wire to the passenger's side taillight.
After all wiring is complete, reinstall any items that were removed during installation, being careful not to pinch or cut the wires. Route the 4-Flat Connector through the driver's side panel and threshold into the storage compartment and store it there when not in use.
The yellow heat shrink butt connectors are used to splice the fuse holder wire to the black 12 ga. power wire, and to connect the black 12 ga. wire to the black power wire on the module's black box. After inserting the wires into the connector, heat it with a heat gun starting from the center of the splice connector and working outward to the edges on each end until the tubing shrinks and sealant flows. Allow to cool before inspecting the splice to ensure a proper seal.
The white wire is the ground wire. Locate a suitable grounding point near the black module box, such as an existing ground stud, or 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. Clean dirt and rustproofing from the area before securing the ground connection. Ensure all existing ground connections remain attached and torque the existing ground screw to manufacturer torque specifications.
If the 4-Way is not functioning, check the following: (1) Ensure T-One Connector ends are fully inserted and locked in place. (2) Remove the module's power fuse for 10 seconds and repeat the test. (3) Check chassis grounds and ensure ring terminals are in full contact with the vehicle chassis. (4) Remove the module's power fuse. If there is no power to the 4-Way, ensure the fuse is fully inserted into the fuse holder with no breaks, the fuse holder is connected properly to the positive post of the battery, and the module is connected to B+. Use a tester or voltmeter to check for voltage on either side of the yellow butt connector near the module. (5) If installation activated circuit protection, start the vehicle and turn off all functions (tail/headlights, brake, turns), then remove the module power fuse for 10 seconds and repeat the test.
Do not exceed the lower of the towing manufacturing rating (including in your vehicle owner's manual) or the specific amperage ratings stated on the product. Overloading circuits can cause fires. You must read and follow all warnings and cautions printed on the tow vehicle's battery. Refer to your vehicle owner's manual and the product instructions for additional information on ratings and limitations.
Before each trip, perform a pre-trip inspection of the 4-Way flat harness to ensure there is no damage to terminals and connection points for proper lighting connection and operation. Ensure the 4-Way flat harness does not get pinched in door latches, trailer connection points, or allow contact with the road surface. Clean the 4-Way flat connector and add dielectric grease (sold separately) to the terminal pins.
The hardware kit includes: perma seal butt connectors, ring terminals, #8 screws, 15 amp fuse, double-sided tape, fuse holder, test light, 3/32" drill bit, 10 mm socket, ratchet, fish wire, and 6" wire ties. Additional items required but not included are a heat gun and silicone rubber for sealing the grommet.
Horizon Global provides a limited 1-year warranty to the original consumer purchaser only. The product is warranted to be free from material defects in both material and workmanship for one year, provided installation and use are in accordance with product instructions. The warranty does not cover normal wear and tear, damage from abuse, neglect, misuse, accidents, misapplication, overloading, improper installation, improper maintenance, or alterations made by anyone other than the manufacturer. To make a warranty claim, contact Horizon Global at 47912 Halyard Dr. Suite 100, Plymouth, MI 48170, 1-800-632-3290. You must provide the product model number, purchase receipt, and follow the claim instructions provided. Return shipping costs are the purchaser's responsibility.
Technical assistance is available from Horizon Global at: Website: www.horizonglobal.com, Phone: 800-632-3290, Email: TechnicalSupport@horizonglobal.com. The website also contains step-by-step photo installation instructions, downloadable application guides with installation times, and the most up-to-date information regarding application years and trim levels.
First, ensure the T-One Connector ends are fully inserted and locked in place. Then remove the module's power fuse for 10 seconds and repeat the test. If the connector still does not function, check that all chassis grounds are secure and ring terminals are in full contact with the vehicle chassis. Remove the module's power fuse again to reset the system.
To diagnose no power to the 4-Way: (1) Ensure the 15 amp fuse is fully inserted into the fuse holder with no breaks. (2) Verify the fuse holder is connected properly to the positive post of the battery. (3) Confirm the module is connected to B+ (positive). (4) Using a tester or voltmeter, check for voltage on either side of the yellow butt connector near the module. (5) Remove the module power fuse for 10 seconds and repeat the test. (6) If installation activated circuit protection, start the vehicle and turn off all functions (tail/headlights, brake, turns), then remove the module power fuse for 10 seconds and repeat the test.
Sam
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