Trailer Wiring and Bracket and Light Tester For 17‑24 Subaru Impreza Hatchback 4‑Flat Harness Plug Play
Model: 118744 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
2017 - 2024 Subaru, Impreza, Hatchback
Direct Plug & Play Wiring Kit
Wiring Kit Specs:
| Part Number | 118744 |
| 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:
16 17 18 19 20 21 22 23 24 2016 2017 2018 2019 2020 2021 2022 2023 2024
$84 90 $117.37 28% OFF
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$117.37 $84 90
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Product Details
- Brand: Tekonsha
- Model: 118744 118144 20114
- Includes: T-One T-Connector Custom Harness, Mounting Bracket, 4-Flat Car End Tester
Compatibility Chart
Plug and Play T-One Wiring Harness Connector
4-Flat Mounting Bracket
4-Flat Car End Tester w/ LED Display
Fits The Following Vehicles
2017 - 2024 Subaru, Impreza, Hatchback
Direct Plug & Play Wiring Kit
Wiring Kit Specs:
| Part Number | 118744 |
| 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:
16 17 18 19 20 21 22 23 24 2016 2017 2018 2019 2020 2021 2022 2023 2024
Get Expert Help
Trailer Wiring and Bracket and Light Tester For 17-24 Subaru Impreza Hatchback 4-Flat Harness Plug Play Install Notes
Installation Instructions for T-One® T-Connector for Subaru Impreza Hatchback
Part Numbers:
- 118744
Tools Required:
- Trim Panel Remover
- 10mm Socket & Ratchet or 10mm Wrench
- Drill (3/32” Drill Bit)
- Wire Crimpers
- Wire Cutters
- Phillips Head Screwdriver
- Test Probe
Step-by-Step Instructions:
-
Remove the Taillight Assemblies:
- Open the tailgate and remove the vehicle’s taillight assemblies.
- Carefully pull the taillights away from the vehicle, ensuring not to damage the alignment pins. Set aside.
-
Route the T-Connector Harness:
- Route the harness containing the yellow wire underneath the vehicle and up through the opening between the vehicle bumper and body to the driver’s side taillight pocket.
-
Mount the Black Box Module:
- On the driver’s side, locate a flat, out-of-the-way surface and mount the T-Connector’s black converter box using the provided double-sided tape.
-
Ground the White Wire:
- Locate a suitable grounding point near the connector, such as an existing ground stud, or drill a 3/32” hole.
- Secure the white wire using the provided eyelet and screw. Clean the area of dirt and rustproofing before securing.
Caution: Verify what is behind the surface before drilling to prevent damage or injury.
-
Connect the Driver-Side T-Connector:
- Separate the vehicle’s wiring connectors, being careful not to break the locking tabs.
- Insert the T-Connector end with the yellow and brown wires between the vehicle wiring connectors and lock into place. Ensure all connectors are clean and secure.
Warning: Ensure the module is mounted so the epoxy side faces downward to prevent water accumulation.
-
Route the Passenger-Side T-Connector:
- Route the T-Connector end with the green wire through the opening on the passenger side, avoiding hot pipes, heat shields, fuel tank, or other points that may pinch or break the wire.
-
Connect the Passenger-Side T-Connector:
- Repeat Step 5 on the passenger side using the T-Connector end containing the green wire.
-
Connect the Power Wire:
- On the driver’s side, locate the black 12-gauge power wire from the T-Connector box.
- Attach the provided black wire and route it along the exterior frame or existing wiring to the engine compartment, avoiding areas that may pinch or break the wire.
Warning: Avoid routing the wire near hot pipes, heat shields, or fuel tank.
-
Connect to the Vehicle Battery:
- Disconnect the vehicle’s Negative (-) battery cable.
- Remove the fuse from the yellow fuse holder and attach the ring terminal to the Positive (+) battery cable.
- Connect the other end of the fuse holder to the black 12-gauge wire using the provided yellow butt connector.
Warning: Follow all warnings and cautions on the tow vehicle’s battery.
-
Secure the Wiring Harness:
- Use the provided cable ties to secure the remainder of the T-Connector harness, avoiding areas that may pinch, cut, or melt the wire.
-
Reconnect the Battery and Test:
- Reconnect the Negative (-) battery cable and install the 15-amp fuse into the fuse holder.
- Test the installation with a test light or trailer. Reset the vehicle’s electrical system by temporarily removing the key from the ignition.
-
Reassemble the Vehicle:
- Reinstall the plastic trim panels, threshold, storage covers, floor covering, and any other items removed during installation, ensuring no wires are pinched or damaged.
-
Attach the Flat-4 Mounting Bracket:
- Attach the flat-4 mounting bracket to the trailer hitch using the provided screws and nuts.
Safety Notes:
- Overloading circuits can cause fires. Do not exceed stated product ratings or vehicle manufacturer specifications.
- Always wear safety glasses and follow safety precautions during installation.
Manufacturer Notes:
- Refer to the vehicle owner’s manual and the instruction sheet for additional details.
- Store these instructions for future reference.
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