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Tekonsha
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Select your vehicle to confirm this part fits.
2009 - 2012 Hyundai Elantra
Confirmed to Fit
2001 - 2006 Hyundai Santa Fe
Confirmed to Fit

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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: | 118473 |
| 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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2 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2009 - 2012 | Hyundai Elantra | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes |
| 2001 - 2006 | Hyundai Santa Fe | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes |
Yes, the Tekonsha T-One T-Connector Harness, 4-Way Flat, w/Circuit Protected Converter TK118473 (Part #TK118473) is designed to fit the 2009-2012 Hyundai Elantra.
The Tekonsha T-One T-Connector Harness, 4-Way Flat, w/Circuit Protected Converter TK118473 (Part #TK118473) fits 2009-2012 Hyundai Elantra models. The 2012 model year is the last year covered by this part number. For newer models, check for an updated version.
The Tekonsha T-One T-Connector Harness, 4-Way Flat, w/Circuit Protected Converter TK118473 (Part #TK118473) fits the following vehicles: 2009-2012 Hyundai Elantra; 2001-2006 Hyundai Santa Fe. Always verify your specific year, make, and model before ordering.
The Tekonsha T-One T-Connector Harness, 4-Way Flat, w/Circuit Protected Converter TK118473 (Part #TK118473) Drilling is required for installation. Basic hand tools are typically all you need.
Yes, the T-Connector is designed for the Hyundai Elantra Touring. The installation instructions are specific to this model and the Hyundai Santa Fe.
Yes, the T-Connector is designed for the Hyundai Santa Fe. However, Santa Fe installation has additional steps: you must remove the tie-down loop and several trim panel fasteners to access the panels, and you may need to cut a slit or notch in the storage tray to allow the 4-Flat connector into the compartment.
You will need: trim panel remover, 1/4" socket and ratchet or 1/4" wrench, drill with 3/32" drill bit, Phillips head screwdriver, and test-probe.
The manual does not specify whether the battery must be disconnected. Contact the manufacturer or consult your vehicle's owner's manual for guidance on electrical work safety.
Open the rear hatch and push the rear seat forward. Inside the vehicle's rear cargo area, temporarily remove all floor coverings, cargo trays, and the plastic threshold cover. Partially remove the rear interior trim panels on both the driver and passenger sides. For Santa Fe models, you will also need to remove the tie-down loop and several trim panel fasteners.
Locate the vehicle's taillight wiring harness on both the driver and passenger sides. On the driver's side, insert the T-Connector end with the yellow wire between the vehicle wiring connectors and lock into place. Be careful not to damage the locking tabs and ensure connectors are fully inserted with locking tabs in place. Route the T-Connector end with the green wire to the passenger's side behind the panels and along the threshold, then repeat the connection process for the green wire end.
Yes. You must drill a 3/32" hole to secure the white ground wire using the eyelet and screw provided. Locate a suitable grounding point near the connector, such as the vehicle's frame or cross-member. Do not drill into the vehicle floor, bed, or any exposed surfaces. Before drilling, verify what is behind the surface to avoid damage to the vehicle and personal injury. Clean dirt and rustproofing from the area before drilling.
It may be necessary to cut a slit or notch in the storage tray to allow the 4-Flat connector into the compartment. This is specific to Santa Fe models.
Store the 4-Flat in the truck or rear cargo area when not in use.
Do not exceed the lower of your towing manufacturer's rating or: maximum stop/turn light of 1 per side (2.1 amps) and maximum tail lights of 7.5 amps. Overloading the circuit can cause fires. Read your vehicle's owner's manual and instruction sheet for additional information.
All connections must be complete for the T-Connector to function properly. Test and verify the installation with a test light or trailer once installed.
Reinstall the plastic trim panels, threshold, storage covers, floor covering, and other items removed during installation. Be careful not to pinch or cut the wires when reinstalling components.
Locate a suitable mounting location inside the rear quarter panel on the driver's side. Clean the area with a 50/50 water/alcohol solution where the converter will be mounted.
Route the 4-Flat from below the driver's side trim panel into the rear storage compartment. Store it in the truck or rear cargo area when not in use. On Santa Fe models, you may need to cut a slit or notch in the storage tray to allow the 4-Flat into the compartment.
The T-Connector fits Hyundai Elantra Touring and Hyundai Santa Fe models. Santa Fe installation requires additional steps including tie-down loop removal and possible storage tray modification.
Trim panel remover, 1/4" socket and ratchet or wrench, drill with 3/32" bit, Phillips screwdriver, and test-probe.
Do not exceed the lower of your towing manufacturer's rating or: 2.1 amps per side for stop/turn lights and 7.5 amps for tail lights. Overloading can cause fires.
Test and verify the installation with a test light or trailer once installed. All connections must be complete for proper function.



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May 22, 2023