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Tekonsha
On Sale Today
Original price was $125.00. Current price is $109.16.2007 - 2011 Dodge Nitro
Confirmed to Fit
2008 - 2012 Jeep Liberty
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: | 118554 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.8 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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The 2008-2011 Dodge Nitro, 2008-2012 Jeep Liberty, 2007-2007 Dodge Nitro Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118554 (Part #TK118554) fits the following vehicles: 2007-2011 Dodge Nitro; 2008-2012 Jeep Liberty. Always verify your specific year, make, and model before ordering.
Yes, the 2008-2011 Dodge Nitro, 2008-2012 Jeep Liberty, 2007-2007 Dodge Nitro Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118554 (Part #TK118554) is designed to fit the 2007-2011 Dodge Nitro.
The 2008-2011 Dodge Nitro, 2008-2012 Jeep Liberty, 2007-2007 Dodge Nitro Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118554 (Part #TK118554) fits 2007-2011 Dodge Nitro models. The 2012 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2008-2011 Dodge Nitro, 2008-2012 Jeep Liberty, 2007-2007 Dodge Nitro Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118554 (Part #TK118554) Drilling is required for installation. Basic hand tools are typically all you need.
Yes, this T-Connector is designed for Dodge Nitro and Jeep Liberty vehicles. The manual does not specify model years, trim levels, or other variations that may affect fitment, so verify your specific vehicle configuration before purchasing.
The T-Connector is a trailer wiring converter that allows you to connect a trailer to your Dodge Nitro or Jeep Liberty. It converts the vehicle's taillight signals to a 4-flat trailer connector. The system includes a converter box, wiring harness with color-coded ends, fuse holder, and connectors.
You will need: a drill with 3/32" drill bit, Phillips head screwdriver, trim panel remover, wire crimpers, wire cutters, and a test probe. These tools are required to remove taillight assemblies, drill the ground wire hole, and make electrical connections.
The kit includes: a yellow fuse holder with 10 amp fuse, yellow butt connectors, a ring terminal, a white eyelet and screw for grounding, double-sided tape for the converter box, cable ties for securing the harness, and a T-Connector harness with color-coded ends (yellow, green, and black wires) plus a 4-flat connector. A bracket for the 4-flat connector is not included.
Yes. You must disconnect the vehicle's negative (-) battery cable before beginning installation. After completing the wiring connections, you will reconnect the negative battery cable and install the 10 amp fuse into the fuse holder.
Open the tailgate and locate the two clips holding each taillight assembly in place. Remove both clips, then carefully pry the housing away from the vehicle body, taking care not to break the alignment tabs. Repeat this process for both the right and left side taillight assemblies.
The T-Connector end with the yellow wire plugs in between the mating plugs on the driver's side taillight socket and the vehicle wiring harness. This connection is made after disconnecting the vehicle wiring harness from the taillight socket.
From the driver's side, route the T-Connector end with the green wire and the 4-flat connector down through the opening between the vehicle bumper and body. Route the green wire end to the passenger's side and route the 4-flat underneath the bumper. Then route the green wire end up through the opening on the passenger side. Repeat the connection process on the passenger side taillight.
Yes. You must drill a 3/32" hole to secure the white ground wire. Locate a suitable grounding point near the connector (do not drill into the vehicle floor or bed), clean dirt and rustproofing from the area, drill the hole, and secure the white wire using the eyelet and screw provided.
Before drilling, verify what is behind the surface to avoid damage to the vehicle and personal injury. Do not drill into any exposed surfaces or into the vehicle floor or bed. Clean dirt and rustproofing from the area before drilling the 3/32" hole for the ground wire.
Disconnect the vehicle's negative battery cable first. Remove the fuse from the yellow fuse holder (if not already removed). 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 yellow butt connector provided. After all wiring is complete, reconnect the negative battery cable and install the 10 amp fuse into the fuse holder.
The black power wire is 12 gauge (12 ga.). A 10 amp fuse is installed in the yellow fuse holder provided with the kit.
Beginning from the front of the vehicle, route the black 12 gauge wire rearward along the frame rail. Route the wire carefully to avoid any hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. Continue routing to the rear driver's side and up through the opening between the vehicle rear bumper and body to access the rear driver's side taillight area.
Route the black 12 gauge wire up through the opening between the vehicle rear bumper and body on the driver's side to access the rear driver's side taillight area. Attach the black 12 gauge wire to the black wire from the T-Connector black box using the supplied yellow butt connector.
On the driver's side, locate a flat surface in an out-of-the-way place and mount the T-Connector's black converter box using the double-sided tape provided. The epoxy side of the module must point toward the ground to prevent water buildup.
Reinstall the taillight housing assemblies, positioning the vehicle wiring harness between the housing and the vehicle body. Secure the remainder of the T-Connector harness under the bumper with the cable ties provided, being careful to avoid any areas that would cut or pinch the wire.
Mount the 4-flat connector in a suitable location under the vehicle. A bracket is not included with the kit, so you will need to source and install an appropriate bracket separately.
Always wear safety glasses during installation. Read and follow all warnings and cautions printed on the tow vehicle's battery. Do not exceed the lower of the towing manufacturer rating (including in your vehicle owner's manual) or the specific amperage ratings stated on the product. Overloading circuits can cause fires. Route wires carefully to avoid hot pipes, heat shields, the fuel tank, and pinch points.
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. Ensure the 10 amp fuse is installed in the fuse holder and all wire connections are secure before testing.
Do not exceed the lower of the towing manufacturer rating (including in your vehicle owner's manual) or the specific amperage ratings stated on the product. The kit includes a 10 amp fuse, which provides circuit protection. Consult your vehicle owner's manual and the product documentation for the specific amperage rating applicable to your vehicle.
Yes, the T-Connector part 118554-037 is designed for Dodge Nitro and Jeep Liberty vehicles. Verify your specific vehicle configuration before purchasing.
You need a drill with 3/32" bit, Phillips screwdriver, trim panel remover, wire crimpers, wire cutters, and a test probe.
Yes, disconnect the negative battery cable before starting installation. Reconnect it after all wiring is complete and the 10 amp fuse is installed.
A 10 amp fuse is installed in the yellow fuse holder provided with the kit.
Do not exceed the lower of the towing manufacturer rating (in your vehicle owner's manual) or the specific amperage ratings stated on the product. The kit includes a 10 amp fuse for circuit protection.
No, a bracket is not included. You must source and install an appropriate bracket separately to mount the 4-flat connector under the vehicle.
Verify that all connections are complete and secure. Check that the 10 amp fuse is installed in the fuse holder. Ensure the yellow wire is properly connected between the driver's side taillight socket and vehicle wiring harness, and the green wire is properly connected on the passenger's side. Test with a test light or trailer to verify proper function.
The converter box is mounted incorrectly. The epoxy side of the module must point toward the ground to prevent water buildup. Remount the converter box so that the epoxy side faces downward.
Reroute the wiring to avoid hot pipes, heat shields, the fuel tank, and any other pinch points. Secure the harness under the bumper with the cable ties provided, being careful to avoid areas that would cut or pinch the wire. Ensure the black 12 gauge wire is routed along the frame rail from the front of the vehicle to the rear.
2 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2007 - 2011 | Dodge Nitro | Tow Harness T: Connector Assembly Drilling Required Install Time is 60 minutes |
| 2008 - 2012 | Jeep Liberty | Tow Harness T: Connector Assembly Drilling Required Install Time is 60 minutes |
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May 22, 2023