











Trailer Wiring and Bracket w/ Light Tester For 06‑10 Jeep Commander Plug & Play 4‑Flat Harness
Model: 118408 118144 20114Plug and Play T-One Wiring Harness Connector
4-Flat Mounting Bracket
4-Flat Car End Tester w/ LED Display
Fits The Following Vehicles:
2006 - 2010 Jeep, Commander, All Styles
Wiring Kit Specs:
Part Number | 118408 |
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:
06 07 08 09 10 2006 2007 2008 2009 2010
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Fits 's with the following styles:
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Fits 's with the following styles:
$111.11 $83 99
Questions? Call our Auto Experts at (877) 869-6690
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Product Details
- Brand: Tekonsha
- Model: 118408 118144 20114
- Includes: T-One T-Connector Custom Harness, Mounting Bracket, 4-Flat Car End Tester
Compatibility Chart
Year Range | Make | Model | Style |
---|---|---|---|
Loading... |
Specification | |
Circuit Protected | Yes |
Hardware Included | Yes |
Harness Type | 4-Way Flat (Vehicle Side) |
Terminal Quantity | 4 |
Universal Or Specific Fit | Specific Fit |
Wire Colors | Brown, Green, Yellow, White |
Wire Quantity | 4 Wires |
Be the first to ask a question.
Description
Plug and Play T-One Wiring Harness Connector
4-Flat Mounting Bracket
4-Flat Car End Tester w/ LED Display
Fits The Following Vehicles:
2006 - 2010 Jeep, Commander, All Styles
Wiring Kit Specs:
Part Number | 118408 |
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:
06 07 08 09 10 2006 2007 2008 2009 2010
Get Expert Help
Trailer Wiring and Bracket w/ Light Tester For 06-10 Jeep Commander Plug & Play 4-Flat Harness Install Notes
Installation Instructions for T-Connector Adapter
Part Numbers:
- 118408
Tools Required:
- Drill with 3/32" Drill Bit
- Phillips Head Screwdriver
- Trim Panel Remover
Step-by-Step Instructions:
-
Remove Rear Taillight Assemblies:
- Open the tailgate and remove the vehicle’s right-side taillight assembly by removing the two clips holding the taillight in place.
- Carefully pry the taillight housing away from the vehicle, ensuring not to break the alignment tabs.
- Repeat this process for the left-side taillight assembly.
-
Disconnect and Connect the T-Connector:
- Disconnect the vehicle wiring harness from both taillight sockets.
- Plug the T-Connector end with the yellow wire between the driver’s side taillight socket and vehicle wiring harness.
-
Route the Wiring:
- On 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 across to the passenger side and up through the opening.
- Avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or damage the wire.
- Repeat Step 2 for the passenger side using the T-Connector with the green wire.
-
Ground the White Wire:
- Locate a suitable grounding point near the connector, such as the vehicle frame or crossmember. Avoid drilling 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 provided eyelet and screw.
Caution:
- Verify what is behind the surface before drilling to avoid damage or injury. Do not drill into exposed surfaces.
-
Secure the Black Box and Wiring:
- Clean a flat area behind the driver’s side taillight assembly using a mixture of rubbing alcohol and water.
- Mount the T-Connector black box using the provided double-sided tape.
- Secure the remaining T-Connector harness under the bumper using the provided cable ties, ensuring no wires are pinched or cut.
-
Reinstall the Taillight Assemblies:
- Position the vehicle wiring harness between the housing and the vehicle body.
- Reinstall the taillight assemblies and any previously removed components.
-
Test the Installation:
- Test the T-Connector installation using a test light or trailer to verify proper functionality.
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 provided.
Manufacturer Notes:
- Store the 4-flat connector in a suitable location when not in use.
- Refer to the vehicle owner’s manual and instruction sheet for additional guidance.