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Tekonsha
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Original price was $106.25. Current price is $65.05.2015 - 2018 Ford Focus
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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: | 118674 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.65 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: | 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 | Style | Notes |
|---|---|---|---|
| 2015 - 2018 | Ford Focus | Hatchback | Tow Harness T: Connector Assembly Drilling Required Install Time is 60 minutes |
The 2015-2018 Ford Focus, 2015-2018 Ford Focus, 2017-2018 Ford Focus, 2015-2018 Ford Focus Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118674 (Part #TK118674) fits 2015-2018 Ford Focus models. The 2018 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2015-2018 Ford Focus, 2015-2018 Ford Focus, 2017-2018 Ford Focus, 2015-2018 Ford Focus Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118674 (Part #TK118674) fits the following vehicles: 2015-2018 Ford Focus. Always verify your specific year, make, and model before ordering.
Yes, the 2015-2018 Ford Focus, 2015-2018 Ford Focus, 2017-2018 Ford Focus, 2015-2018 Ford Focus Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118674 (Part #TK118674) is designed to fit the 2015-2018 Ford Focus.
The 2015-2018 Ford Focus, 2015-2018 Ford Focus, 2017-2018 Ford Focus, 2015-2018 Ford Focus Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118674 (Part #TK118674) Drilling is required for installation. Basic hand tools are typically all you need.
The T-One® T-Connector is a towing electrical connector system that integrates with your vehicle's existing taillight wiring to provide trailer lighting control. It connects to your vehicle's electrical system via the taillights and battery, allowing you to control trailer stop, turn, and tail lights. The system includes a black box module, wire harness with color-coded ends (yellow for driver side, green for passenger side, white for ground, black for power), and a 4-flat connector for the trailer.
Yes, this T-One® T-Connector (part number 118674-037) is designed specifically for the Ford Focus Titanium Hatchback. The installation instructions are written for this vehicle model. If you have a different Focus trim level or model year, you should verify compatibility with the manufacturer or a fitment database before purchasing.
You will need: a trim panel remover, a drill with a 3/32" drill bit, a Phillips head screwdriver, and a test probe. These tools are required to remove interior panels, drill the ground hole, and test the electrical connections after installation.
The kit includes: a black box module, color-coded wire harness (yellow, green, white, and black wires), cable ties for securing the harness, an eyelet and screw for the ground connection, a 15 amp fuse, a yellow fuse holder with ring terminal, yellow butt connectors for wire connections, and a 4-flat connector for the trailer. The manual notes that the 4-flat connector should be stored in the rear cargo area when not in use.
Yes. You must disconnect the vehicle's negative (-) battery cable before connecting the power wire to the positive (+) battery terminal. This is done in step 10. After all other connections are complete and the fuse is installed in the fuse holder, you reconnect the negative battery cable in step 11.
You must open the rear tailgate, remove cargo nets and the cargo floor hatch to access the spare tire area, and temporarily remove the rear threshold plate. Then partially remove the rear interior trim panels on both the driver and passenger sides. You will need to remove several trim panel fasteners to access the panels. Carefully pull back the carpet on both sides to expose the plastic wing nuts (2 per side) that hold the taillights in place.
On both driver and passenger sides: (1) pull the taillight wire harness and unseat the grommet; (2) slit the grommet to allow the T-Connector wiring through; (3) route the appropriate T-Connector end (yellow wire on driver side, green wire on passenger side) through the opening and into the tail lamp pocket, then reseat the grommet around the wires; (4) insert the T-Connector end between the vehicle's wiring connectors and lock into place, ensuring locking tabs are fully seated; (5) reinstall the light assemblies. Be careful not to damage the locking tabs or alignment pins.
Yes, one 3/32" hole must be drilled to create a ground connection. Locate a suitable grounding point near the connector on the vehicle body, clean dirt and rustproofing from the area, then drill the 3/32" hole and secure the white ground wire using the eyelet and screw provided. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury, and do not drill into any exposed surfaces.
From inside the vehicle, connect the black 12 gauge wire from the T-Connector's black box module to the vehicle's black 12 gauge wire using the supplied yellow butt connector. Then route the combined black wire either through a grommet and along the exterior frame, or follow the existing wiring along the thresholds into the engine compartment up to the battery. Avoid areas that may pinch or break the wire. If routing through a grommet and along the exterior, carefully avoid hot pipes, heat shields, the fuel tank, and other points that may pinch or break the wire.
Use a 15 amp fuse. In step 10, disconnect the vehicle's negative battery cable. If the fuse is not already removed from the yellow fuse holder, remove it. Cut the fuse holder wire, attach the ring terminal to the vehicle's positive (+) battery cable, and connect the other end of the fuse holder to the black 12 gauge wire using the supplied yellow butt connector. In step 11, reconnect the negative battery cable and install the 15 amp fuse into the fuse holder.
Yellow wire: connects to the driver's side taillight. Green wire: connects to the passenger's side taillight. White wire: ground connection (drilled and secured to vehicle body). Black wire: power connection (connects to vehicle battery positive terminal through the fuse holder).
Do not exceed the lower of your towing manufacturer's rating or these limits: maximum stop/turn light is 2 per side (4.2 amps total), and maximum tail lights is 7.5 amps. Overloading the circuit can cause fires. Consult your vehicle's owner's manual and the T-Connector instruction sheet for additional information about your specific towing capacity.
All connections must be complete for the T-Connector to function properly. Test and verify the installation with a test light or by connecting an actual trailer once installed. For the initial test, reset the vehicle's electrical system by temporarily removing the key from the ignition. Use a test probe to verify that all electrical connections are working correctly before towing.
Locate a flat surface in an out-of-the-way place inside the vehicle and mount the black box module there to prevent damage or rattling. After mounting, secure the remainder of the harness with the cable ties provided, being careful to avoid any areas that would pinch, cut, or melt the wire.
After mounting the black box module, secure the remainder of the harness with the cable ties provided. Be careful to avoid any areas that would pinch, cut, or melt the wire. When reinstalling interior trim panels, carpet, threshold plate, and other removed items, be careful not to pinch or cut the wires.
Store the 4-flat connector in the rear cargo area of your vehicle when not in use.
This T-Connector (part 118674-037) is designed specifically for the Ford Focus Titanium Hatchback. Verify compatibility with the manufacturer if you have a different trim level or model year.
You need a trim panel remover, drill with 3/32" bit, Phillips screwdriver, and test probe.
Yes, disconnect the negative battery cable before connecting the power wire to the positive terminal. Reconnect it after the fuse is installed.
Use a 15 amp fuse. This protects the circuit from overload.
Do not exceed 2 stop/turn lights per side (4.2 amps) or 7.5 amps for tail lights. Overloading can cause fires.
Verify that all connections are complete. Test the installation with a test light or by connecting a trailer. Reset the vehicle's electrical system by temporarily removing the key from the ignition. Check that the 15 amp fuse is installed in the fuse holder. Verify that the locking tabs on the taillight connectors are fully seated and that the connector ends are fully inserted between the vehicle wiring connectors. Ensure the ground wire is securely attached with the eyelet and screw, and that the power wire is properly connected to the positive battery terminal through the fuse holder.
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