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Tekonsha
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2021 - 2025 Ford Bronco
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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: | 118867 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.7 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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1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2021 - 2025 | Ford Bronco | Tow Harness T: Connector Assembly Drilling Required Install Time is 60 minutes Without LED Taillights |
Yes, the 2021-2024 Ford Bronco Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118867 (Part #TK118867) is designed to fit the 2021-2025 Ford Bronco.
The 2021-2024 Ford Bronco Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118867 (Part #TK118867) fits 2021-2025 Ford Bronco models. The 2025 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2021-2024 Ford Bronco Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118867 (Part #TK118867) fits the following vehicles: 2021-2025 Ford Bronco. Always verify your specific year, make, and model before ordering.
The 2021-2024 Ford Bronco Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118867 (Part #TK118867) Drilling is required for installation. Basic hand tools are typically all you need.
The T-One® Connector 118867-037 is designed for Ford Full Size Bronco vehicles, except those with LED taillights. If your Bronco has LED taillights, this connector is not compatible. Verify your taillight type before purchasing.
No. The T-One® Connector 118867-037 is not compatible with LED taillights. It is designed for Ford Full Size Bronco vehicles with standard (non-LED) taillights only.
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.
The kit includes: T-Connector with yellow and green wire ends, black box module, double-sided tape, white wire with eyelet and screw for grounding, black 12 gauge power wire, yellow fuse holder with 15 amp fuse, yellow butt connector, and cable ties. The 4-Flat bracket or electrical box for mounting the 4-Flat connector is not included and must be purchased separately.
Yes. You must disconnect the vehicle's negative (-) battery cable before connecting the power wire to the battery. This is done in step 9 before attaching the fuse holder to the positive battery cable. The negative cable is reconnected in step 10 after the fuse is installed.
No. Installation requires opening the rear door to access the protective covers next to each taillight and the taillight connectors. The door must remain open during steps 1-3 and 7.
Open the rear door. Locate the protective covers next to each taillight. Using a Phillips head screwdriver, carefully unscrew the 4 clips on each cover. Remove the clips with a panel puller. Locate the 2 10mm bolts and remove them using a 10mm socket and ratchet or 10mm wrench. Carefully remove the cover and set it aside. Repeat for the passenger side. Keep all bolts and clips for reinstallation.
On the driver's side, insert the T-Connector end with the yellow wire between the vehicle wiring connectors. On the passenger's side, insert the T-Connector end with the green wire between the vehicle wiring connectors. Both must be fully inserted with locking tabs in place. Ensure connector surfaces are clean and free of dirt before insertion.
Mount the black box in the exposed area above and behind the taillight on a flat surface using the double-sided tape provided. The epoxy side of the module must point toward the ground to prevent water buildup. This prevents damage and rattling.
Yes. You must drill a 3/32" hole to secure the white grounding wire. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury. Do not drill into the vehicle floor or bed, and do not drill into any exposed surfaces. Clean dirt and rustproofing from the area before drilling.
A 3/32" drill bit is required. This is used to drill the hole for securing the white grounding wire with the eyelet and screw provided.
Locate a suitable grounding point near the connector, such as the vehicle's frame or crossmember. Do not drill into the vehicle floor or bed. Clean dirt and rustproofing from the area. Drill a 3/32" hole and secure the white wire using the eyelet and screw provided.
Route the connector containing the green wire and the 4-Flat down the opening between the bumper and body. Route the T-Connector end with green wire to the passenger's side and route the 4-Flat underneath the bumper. Route the T-Connector end with green wire up through the opening on the passenger side, avoiding hot pipes, heat shields, fuel tank, and any points that may pinch or break the wire. Mount the 4-Flat end in an accessible location with a bracket or electrical box (not included).
Locate the black 14 gauge power wire from the T-Connector box on the driver's side. Attach the black 12 gauge wire provided. Route the black wire along the exterior frame or follow 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, avoid hot pipes, heat shields, fuel tank, and other points that may pinch or break the wire.
The T-One® Connector uses a 15 amp fuse. The yellow fuse holder with the 15 amp fuse is provided in the kit. Install the fuse into the fuse holder after reconnecting the vehicle's negative battery cable.
Disconnect the vehicle's negative (-) battery cable. If not already removed, remove the fuse from the yellow fuse holder provided. Cut the fuse holder wire and attach the ring terminal to the vehicle's positive (+) battery cable. Connect the other end of the fuse holder to the black 12 gauge wire using the yellow butt connector provided. Reconnect the negative battery cable and install the 15 amp fuse into the fuse holder.
The T-Connector box outputs a black 14 gauge power wire. This connects to a black 12 gauge wire provided in the kit, which is routed to the battery. The white grounding wire and colored signal wires (yellow and green) are also included.
Always wear safety glasses during installation. Read and follow all warnings and cautions printed on the tow vehicle's battery before connecting power. Verify what is behind any surface before drilling to avoid damage or personal injury. Do not drill into exposed surfaces, the vehicle floor, or bed. Avoid hot pipes, heat shields, fuel tank, and other points that may pinch or break wires. Secure all wires with cable ties to prevent damage or rattling.
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.
Verify that all connectors are fully inserted with locking tabs in place at both the driver and passenger taillights. Ensure the black box module is mounted with the epoxy side pointing toward the ground. Confirm all wires are secured with cable ties and routed away from hot pipes, heat shields, and fuel tank. Reinstall protective covers without pinching or cutting wires. Test the connector with a test light or trailer and reset the vehicle electrical system by temporarily removing the ignition key.
Do not exceed the lower of the towing manufacturer's rating (including the rating in your vehicle owner's manual) or the specific amperage ratings stated on the T-One® Connector product. Overloading circuits can cause fires. Consult your vehicle's owner's manual and the product documentation for the specific amperage limit.
Yes. All connector surfaces must be clean and free of dirt before inserting the T-Connector ends. Clean the connectors when you separate the vehicle's taillight wiring harness in step 2.
The manual instructs you to carefully set aside the bolts and clips when removing the protective covers and to reinstall them at the end. This indicates they should be reused. Reinstall the protective covers and other items removed during installation, being careful not to pinch or cut the wires.
The T-One® Connector 118867-037 fits Ford Full Size Bronco vehicles with standard (non-LED) taillights only. LED taillight models are not compatible.
Trim panel remover, 10mm socket/ratchet or wrench, drill with 3/32" bit, 1/4" socket, wire crimpers, wire cutters, Phillips screwdriver, and test-probe.
Yes. Disconnect the negative battery cable before connecting the power wire to the positive terminal. Reconnect it after installing the 15 amp fuse.
Yes. You must drill a 3/32" hole for the grounding wire. Verify what is behind the surface before drilling and do not drill into the vehicle floor, bed, or exposed surfaces.
15 amp fuse. The yellow fuse holder and fuse are provided in the kit.
Do not exceed the lower of the towing manufacturer's rating in your vehicle owner's manual or the specific amperage ratings on the product. Consult both documents for the limit.
Verify that all connections are complete. Ensure both T-Connector ends (yellow wire at driver side, green wire at passenger side) are fully inserted with locking tabs in place at the taillights. Confirm the black box module is properly mounted. Check that the 15 amp fuse is installed in the fuse holder. Verify the ring terminal is securely attached to the positive battery cable and the yellow butt connector is properly connected to the black 12 gauge wire. Test with a test light or trailer. Reset the vehicle electrical system by temporarily removing the ignition key.
The module is mounted with the epoxy side pointing upward instead of toward the ground. The epoxy side must point toward the ground to prevent water buildup. Remount the module using the double-sided tape with the correct orientation.
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