Trailer Wiring and Bracket and Light Tester For 07‑13 Jeep Grand Cherokee All Styles 4‑Flat Harness Plug Play
Model: 118425 118144 20114Plug and Play T-One Wiring Harness Connector
4-Flat Mounting Bracket
4-Flat Car End Tester w/ LED Display
This Hitch Fits The Following Vehicles:
2007 - 2013 Jeep, Grand Cherokee, All Styles
Direct Plug & Play Wiring Kit
Wiring Specs
| Part Number | 118425 |
| Brand | Tekonsha |
| Warranty | 1 Year |
| Installation Instructions |  |
| Part Number | 118144 |
| Fits | 4 Flat Connectors |
| Brand | Tow Ready |
| Mounts electrical connector to attachment bracket Includes screws and nuts Attractive point-of-purchase packaging |
|
| Warranty | 1 Year |
| Part Number | 20114 |
| Fits | 4 Flat Connectors |
| Brand | Tow Ready |
| 4-Flat Car End Tester w/LED Display Plug these testers into any car connector and you will have an instant test of running light circuits. |
|
| Warranty | 1 Year |
Questions or Comments? Call 702-374-8999
Thank you for choosing Tekonsha, the most powerful name in trailer light wiring and brake control system. Our trailer wiring harness is vehicle specific, requires no splicing or cutting of the wires. Simply plug & play and your vehicle will be able to control trailers brake, turn and running lights. Trailer wiring kit comes with a 1 year warranty and everything necessary to install the trailer plug wiring. Tekonsha manufactures a wider range of different products for hooking up trailer lights to your Car Truck or SUV. T-One connectors work great with boat trailer wiring and utility trailer wiring. Typically those trailers will use the standard 4 flat plug which is what our T One connectors offer. If you have an RV Fifth Wheel or any other large type of trailer you will us a 7 pin trailer plug to control your electric trailer brakes. Tekonsha offers 7 pin trailer connector as well. Simply do a search above to see if there is a 7 wire trailer wiring available for hooking up your 7 way. If there is not you can use part number 85343 trailer wiring adapter to convert any 4-Flat into a 7-Way. In addition you will use part number 20506 which will include the rest of wiring needed for electric brake controls. You can also call us or email us any time and we will be able to provide information you need.
Partial list of fitment years:
07 08 09 10 11 12 13 2007 2008 2009 2010 2011 2012 2013
$56 88 $61.23 7% OFF
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$61.23 $56 88
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Product Details
- Brand: Tekonsha
- Model: 118425 118144 20114
- Includes: T-One T-Connector Custom Harness, Mounting Bracket, 4-Flat Car End Tester
Compatibility Chart
Description
Plug and Play T-One Wiring Harness Connector
4-Flat Mounting Bracket
4-Flat Car End Tester w/ LED Display
This Hitch Fits The Following Vehicles:
2007 - 2013 Jeep, Grand Cherokee, All Styles
Direct Plug & Play Wiring Kit
Wiring Specs
| Part Number | 118425 |
| Brand | Tekonsha |
| Warranty | 1 Year |
| Installation Instructions | |
| Part Number | 118144 |
| Fits | 4 Flat Connectors |
| Brand | Tow Ready |
| Mounts electrical connector to attachment bracket Includes screws and nuts Attractive point-of-purchase packaging |
|
| Warranty | 1 Year |
| Part Number | 20114 |
| Fits | 4 Flat Connectors |
| Brand | Tow Ready |
| 4-Flat Car End Tester w/LED Display Plug these testers into any car connector and you will have an instant test of running light circuits. |
|
| Warranty | 1 Year |
Questions or Comments? Call 702-374-8999
Thank you for choosing Tekonsha, the most powerful name in trailer light wiring and brake control system. Our trailer wiring harness is vehicle specific, requires no splicing or cutting of the wires. Simply plug & play and your vehicle will be able to control trailers brake, turn and running lights. Trailer wiring kit comes with a 1 year warranty and everything necessary to install the trailer plug wiring. Tekonsha manufactures a wider range of different products for hooking up trailer lights to your Car Truck or SUV. T-One connectors work great with boat trailer wiring and utility trailer wiring. Typically those trailers will use the standard 4 flat plug which is what our T One connectors offer. If you have an RV Fifth Wheel or any other large type of trailer you will us a 7 pin trailer plug to control your electric trailer brakes. Tekonsha offers 7 pin trailer connector as well. Simply do a search above to see if there is a 7 wire trailer wiring available for hooking up your 7 way. If there is not you can use part number 85343 trailer wiring adapter to convert any 4-Flat into a 7-Way. In addition you will use part number 20506 which will include the rest of wiring needed for electric brake controls. You can also call us or email us any time and we will be able to provide information you need.
Partial list of fitment years:
07 08 09 10 11 12 13 2007 2008 2009 2010 2011 2012 2013
Get Expert Help
Trailer Wiring and Bracket and Light Tester For 07-13 Jeep Grand Cherokee All Styles 4-Flat Harness Plug Play Install Notes
Installation Instructions for T-Connector Adapter for Jeep Grand Cherokee
Part Numbers:
- 118425
Tools Required:
- Trim Panel Remover
- Drill (3/32” Drill Bit)
- Phillips Head Screwdriver
- Test Probe
Step-by-Step Instructions:
-
Access the Taillight Assemblies:
- Open the tailgate.
- On both the driver’s and passenger’s sides, locate and remove the clips holding the taillight assemblies in place.
-
Disconnect the Taillight Wiring Harness:
- Carefully disconnect the vehicle wiring harness from the taillight sockets on both sides.
- Avoid breaking the locking tabs and set the taillights aside.
-
Route the T-Connector on the Driver’s Side:
- Underneath the vehicle, route the T-Connector harness with the yellow wire up through the opening between the bumper and body into the driver’s side taillight pocket.
- Tip: Use a fish wire to assist in pulling the harness through the taillight pocket and rear fascia.
-
Connect the T-Connector on the Driver’s Side:
- Insert the T-One® T-Connector with the yellow wire between the vehicle’s taillight connector and wiring harness.
- Ensure all connector surfaces are clean and the connectors are fully inserted with locking tabs secured.
-
Route the Green Wire and 4-Flat Connector:
- Route the green wire and the 4-flat connector down along the rear bumper fascia toward the center of the vehicle.
- Continue routing the green wire to the passenger’s side taillight pocket.
-
Connect the T-Connector on the Passenger’s Side:
- Repeat Steps 3 and 4 for the passenger’s side, using the T-Connector end with the green wire.
Warning:
- If routing the wires through a grommet or along the exterior of the vehicle, avoid hot pipes, heat shields, the fuel tank, or areas that may pinch or break the wires.
-
Ground the White Wire:
- Locate a suitable grounding point near the connector, such as an existing ground stud.
- Alternatively, drill a 3/32” hole and secure the white wire using the provided eyelet and screw.
- Caution: Verify what is behind any surface before drilling to avoid damage or injury.
-
Mount the 4-Flat Connector:
- Mount the 4-flat connector at the center of the vehicle in a suitable location.
- Note: A mounting bracket is not included.
-
Secure the Wiring:
- Secure all loose wires using the provided cable ties to prevent damage or rattling.
-
Test the Installation:
- Test and verify the installation with a test light or trailer to ensure functionality.
- Reset the vehicle’s electrical system by temporarily removing the key from the ignition.
Specifications:
- Max. stop/turn light: 1 per side (2.1 amps)
- Max. tail lights: (5 amps)
Safety Notes:
- Do not exceed the towing manufacturer’s rating or the unit specifications.
- Follow all warnings and installation instructions carefully.
- Overloading circuits can cause fires.
Manufacturer Notes:
- Read and understand all warnings and instructions provided with the product.
- Always wear safety glasses and take necessary precautions during installation.
- Refer to the vehicle owner’s manual for additional information.
Installation Instructions for T-Connector Adapter for Jeep Grand Cherokee
Part Numbers:
- 118425
Tools Required:
- Trim Panel Remover
- Drill (3/32” Drill Bit)
- Phillips Head Screwdriver
- Test Probe
Step-by-Step Instructions:
-
Access the Taillight Assemblies:
- Open the tailgate.
- On both the driver’s and passenger’s sides, locate and remove the clips holding the taillight assemblies in place.
-
Disconnect the Taillight Wiring Harness:
- Carefully disconnect the vehicle wiring harness from the taillight sockets on both sides.
- Avoid breaking the locking tabs and set the taillights aside.
-
Route the T-Connector on the Driver’s Side:
- Underneath the vehicle, route the T-Connector harness with the yellow wire up through the opening between the bumper and body into the driver’s side taillight pocket.
- Tip: Use a fish wire to assist in pulling the harness through the taillight pocket and rear fascia.
-
Connect the T-Connector on the Driver’s Side:
- Insert the T-One® T-Connector with the yellow wire between the vehicle’s taillight connector and wiring harness.
- Ensure all connector surfaces are clean and the connectors are fully inserted with locking tabs secured.
-
Route the Green Wire and 4-Flat Connector:
- Route the green wire and the 4-flat connector down along the rear bumper fascia toward the center of the vehicle.
- Continue routing the green wire to the passenger’s side taillight pocket.
-
Connect the T-Connector on the Passenger’s Side:
- Repeat Steps 3 and 4 for the passenger’s side, using the T-Connector end with the green wire.
Warning:
- If routing the wires through a grommet or along the exterior of the vehicle, avoid hot pipes, heat shields, the fuel tank, or areas that may pinch or break the wires.
-
Ground the White Wire:
- Locate a suitable grounding point near the connector, such as an existing ground stud.
- Alternatively, drill a 3/32” hole and secure the white wire using the provided eyelet and screw.
- Caution: Verify what is behind any surface before drilling to avoid damage or injury.
-
Mount the 4-Flat Connector:
- Mount the 4-flat connector at the center of the vehicle in a suitable location.
- Note: A mounting bracket is not included.
-
Secure the Wiring:
- Secure all loose wires using the provided cable ties to prevent damage or rattling.
-
Test the Installation:
- Test and verify the installation with a test light or trailer to ensure functionality.
- Reset the vehicle’s electrical system by temporarily removing the key from the ignition.
Specifications:
- Max. stop/turn light: 1 per side (2.1 amps)
- Max. tail lights: (5 amps)
Safety Notes:
- Do not exceed the towing manufacturer’s rating or the unit specifications.
- Follow all warnings and installation instructions carefully.
- Overloading circuits can cause fires.
Attention:
This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
Technical Support:
For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Warranty Information:
For complete warranty instructions, please download the full installation PDF.
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