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2007 - 2013 Jeep Grand Cherokee
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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: | 118425 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1 LBS |
| UNIVERSAL OR SPECIFIC FIT: | SPECIFIC |
| CIRCUIT PROTECTED: | NO |
| 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: | 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 |
|---|---|---|
| 2007 - 2013 | Jeep Grand Cherokee | Tow Harness T: Connector Assembly Drilling Required Install Time is 20 minutes |
The 2007-2010 Jeep Grand Cherokee, 2011-2013 Jeep Grand Cherokee Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118425 (Part #TK118425) fits 2007-2013 Jeep Grand Cherokee models. The 2013 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 2007-2010 Jeep Grand Cherokee, 2011-2013 Jeep Grand Cherokee Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118425 (Part #TK118425) is designed to fit the 2007-2013 Jeep Grand Cherokee.
The 2007-2010 Jeep Grand Cherokee, 2011-2013 Jeep Grand Cherokee Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118425 (Part #TK118425) fits the following vehicles: 2007-2013 Jeep Grand Cherokee. Always verify your specific year, make, and model before ordering.
The 2007-2010 Jeep Grand Cherokee, 2011-2013 Jeep Grand Cherokee Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118425 (Part #TK118425) Drilling is required for installation. Basic hand tools are typically all you need.
Yes, the manual shows installation instructions specifically for the Jeep Grand Cherokee. However, the manual does not list other vehicle applications. Contact the manufacturer or check the product fitment database to confirm compatibility with other vehicles or model years.
The kit includes the T-One® Connector with yellow and green wire leads, a 4-flat connector, a white ground wire with eyelet and screw, and hardware for securing the ground connection. A bracket for mounting the 4-flat connector is not provided and must be sourced separately.
You will need: a trim panel remover, a drill with a 3/32" drill bit, a Phillips head screwdriver, and a test probe. A fish wire is recommended (but not required) to help route the harness through tight spaces between the taillight pocket and rear fascia.
The manual does not explicitly state whether battery disconnection is required before installation. However, it does require resetting the vehicle electrical system by temporarily removing the ignition key for the initial test after installation. Consult your vehicle's owner's manual or the manufacturer for pre-installation battery safety procedures.
Starting on the driver's side underneath the vehicle, route the harness containing the yellow wire up through the opening between the vehicle bumper and body to the driver's side taillight pocket. The manual recommends using a fish wire between the taillight pocket and rear fascia to pull the harness through from underneath the vehicle. Ensure all connector surfaces are clean and free of dirt before inserting the T-One® Connector end with the yellow wire between the vehicle and taillight connector.
Route the harness with the green wire and 4-flat connector down along the rear bumper fascia to the center of the vehicle. Then route the harness containing the green wire underneath the vehicle up through the opening between the vehicle bumper and body to the passenger's side taillight pocket. Use a fish wire between the taillight pocket and rear fascia to pull the harness through. Insert the T-One® Connector end containing the green wire between the vehicle and taillight connector, ensuring all connector surfaces are clean and free of dirt.
1. Open the tailgate. 2. Starting on the driver's side, locate and remove the clips holding the taillight assembly in place. 3. Repeat on the passenger's side. 4. Locate the taillight wiring connectors on both sides. 5. Disconnect the vehicle wiring harness from both taillight sockets, being careful not to break the locking tabs. 6. Set the taillights aside.
Drilling is required only if a suitable existing ground stud is not available near the connector. If you must drill, you will drill a single 3/32" hole to secure the white ground wire using the eyelet and screw provided. Do not drill into the vehicle floor or bed. 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.
The T-One® Connector uses three wire colours: yellow (driver's side taillight connection), green (passenger's side taillight connection), and white (ground wire). The 4-flat connector is routed separately along the rear bumper fascia to the center of the vehicle.
Mount the 4-flat connector in the center of the vehicle in a suitable location. The manual does not specify an exact location or provide a bracket. You must source an appropriate bracket separately and select a location that is accessible and protected from damage.
If routing the wire through a grommet and along the exterior of the vehicle, be careful to avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. Additionally, before drilling any hole, verify what is behind the surface to prevent damage to the vehicle or personal injury. Do not drill into exposed surfaces.
After installation, reset the vehicle electrical system by temporarily removing the ignition key. Then test and verify the installation using either a test light or by connecting an actual trailer. All connections must be complete for the T-One® Connector to function properly. The manual recommends using a test probe (included in required tools) to verify electrical continuity.
The manual does not state a specific amperage rating for the product. You must not exceed the lower of either the towing manufacturer's rating (including that in your vehicle owner's manual) or the specific amperage ratings stated on the product itself. Overloading circuits can cause fires. Consult the product label and your vehicle's owner's manual for the exact amperage limit.
Yes. Before inserting the T-One® Connector ends into the vehicle and taillight connectors, ensure all connector surfaces are clean and free of dirt. This is required on both the driver's side (yellow wire) and passenger's side (green wire) connections.
Locate a suitable grounding point near the connector, such as an existing ground stud. If no suitable stud exists, drill a 3/32" hole and secure the white wire using the eyelet and screw provided in the kit. Clean dirt and rustproofing from the area before securing. Do not drill into the vehicle floor or bed.
Secure all loose wires and mount the trailer tow harness in an accessible location using a bracket or electrical box. The manual does not provide specific bracket specifications, so you will need to source an appropriate bracket separately.
The manual confirms fitment for the Jeep Grand Cherokee. For other vehicles, contact the manufacturer or check the product fitment database, as the manual does not list additional applications.
Trim panel remover, drill with 3/32" bit, Phillips head screwdriver, and test probe. A fish wire is recommended for routing harness through tight spaces.
Drilling is required only if no suitable existing ground stud is available. You will drill one 3/32" hole for the ground wire. Do not drill into the vehicle floor or bed.
Yes. You must remove the clips holding both driver's and passenger's side taillight assemblies, disconnect the vehicle wiring harness from both taillight sockets, and set the taillights aside before routing the T-One® Connector wires.
Reset the vehicle electrical system by temporarily removing the ignition key, then test using a test light or by connecting a trailer. All connections must be complete for proper function.
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 sources before towing.
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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
Total for 4 items:
$129.65
