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2020 - 2022 Subaru Legacy
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Original price was $112.50. Current price is $99.57.
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: | 118854 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.65 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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1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2020 - 2022 | Subaru Legacy | Tow Harness T: Connector Assembly Drilling Required Install Time is 60 minutes |
Yes, the 2020-2022 Subaru Legacy Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118854 (Part #TK118854) is designed to fit the 2020-2022 Subaru Legacy.
The 2020-2022 Subaru Legacy Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118854 (Part #TK118854) fits the following vehicles: 2020-2022 Subaru Legacy. Always verify your specific year, make, and model before ordering.
The 2020-2022 Subaru Legacy Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118854 (Part #TK118854) fits 2020-2022 Subaru Legacy models. The 2022 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2020-2022 Subaru Legacy Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118854 (Part #TK118854) Drilling is required for installation. Basic hand tools are typically all you need.
The manual specifies this T-Connector is designed for Subaru Legacy. Verify your specific model year and generation with the manufacturer or retailer, as the manual does not list year ranges or excluded generations.
The T-One T-Connector is a wiring harness that integrates trailer lighting into your Subaru Legacy's electrical system. It connects to the vehicle's taillight assemblies and battery to provide power and signaling for trailer lights.
Required tools: Trim panel remover, 10mm socket and ratchet (or 10mm wrench), drill with 3/32" bit, 1/4" socket, wire crimpers, wire cutters, Phillips head screwdriver, and test probe.
The kit includes: black converter box, yellow and brown wires for driver-side connector, red and green wires for passenger-side connector, black 12 gauge power wire, white ground wire with eyelet and screw, yellow fuse holder with 15 amp fuse, yellow butt connector, and cable ties for securing the harness.
Yes. You must disconnect the vehicle's negative battery cable before connecting the fuse holder to the positive battery terminal in step 9. Reconnect the negative cable only after the 15 amp fuse is installed.
Yes. You must open the tailgate and remove both taillight assemblies to access the wiring connectors. Use a Phillips screwdriver to remove trim covers, then a 10mm socket to remove the fasteners. Carefully pull the taillights away without damaging the alignment pins, and reinstall them at the end of installation.
Mount the black converter box on the driver's side of the vehicle in a flat, out-of-the-way location using the double-sided tape provided. The epoxy side of the module must point toward the ground to prevent water buildup.
Yes. You must drill one 3/32" hole to secure the white ground wire. Locate a suitable grounding point on the vehicle's frame or crossmember near the connector. 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. Do not drill into exposed surfaces.
Drill a 3/32" hole for the white ground wire. Secure it using the eyelet and screw provided in the kit.
On the driver's side, separate the vehicle's wiring connectors carefully without breaking the locking tabs. Insert the T-Connector end with the yellow and brown wires between the vehicle connectors and lock into place. Ensure all connector surfaces are clean and free of dirt. Repeat on the passenger side with the T-Connector end containing the red and green wires.
Route the harness with the yellow wire underneath the vehicle and up through the opening between the bumper and body to the driver's side taillight pocket. Route the green wire end from the driver's side up through the opening on the passenger side. Avoid hot pipes, heat shields, fuel tank, and any points that may pinch or break the wire. Secure the harness with cable ties provided, avoiding areas that could pinch, cut, or melt the wire.
Driver-side connector: yellow and brown wires. Passenger-side connector: red and green wires. Power wire from converter box: black 12 gauge. Ground wire: white. The yellow fuse holder connects the black power wire to the vehicle's positive battery terminal.
Locate the black 12 gauge power wire from the converter box. Attach the black 12 gauge wire provided and route it along the exterior frame or follow existing wiring along thresholds into the engine compartment to the battery, avoiding hot pipes, heat shields, fuel tank, and pinch points. Disconnect the negative battery cable. 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. Reconnect the negative battery cable and install the 15 amp fuse.
The T-Connector uses a 15 amp fuse, installed in the yellow fuse holder provided. This fuse protects the circuit and must be installed after all connections are complete.
Locate a suitable grounding point on the vehicle's frame or crossmember near the connector. Clean dirt and rustproofing from the area. Drill a 3/32" hole and secure the white ground wire using the eyelet and screw provided in the kit.
Always wear safety glasses during installation. Before drilling, verify what is behind any surface to avoid damage to the vehicle or personal injury. Do not drill into the vehicle floor, bed, or exposed surfaces. When routing wires, avoid hot pipes, heat shields, fuel tank, and any points that may pinch or break the wire. Read and follow all warnings printed on the tow vehicle's battery. Do not exceed the product's stated amperage ratings or the towing manufacturer's rating, as overloading circuits can cause fires.
The epoxy side of the module must point toward the ground to prevent water buildup inside the module, which could damage the electronics or cause electrical failure.
Do not exceed the lower of two ratings: the towing manufacturer's rating (including the rating in your vehicle owner's manual) or the specific amperage ratings stated on the T-Connector product. Exceeding these ratings can cause circuit overload and fires.
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. For the initial test, reset the vehicle's electrical system by temporarily removing the key from the ignition.
Verify that all wiring connectors are fully locked into place and that all connector surfaces are clean and free of dirt. Ensure the converter box is mounted with the epoxy side pointing toward the ground. Confirm that the white ground wire is securely fastened with the eyelet and screw. Check that the black power wire is routed safely along the frame or existing wiring without pinch points. Verify that the 15 amp fuse is installed in the yellow fuse holder. Test the installation with a test light or trailer and reset the vehicle's electrical system by temporarily removing the ignition key.
No. You must remove both taillight assemblies to access the wiring connectors. The T-Connector ends must be inserted between the vehicle's wiring connectors, which are only accessible after the taillights are removed.
Ensure all connector surfaces are clean and free of dirt before attempting to insert the T-Connector ends. Separate the vehicle's wiring connectors carefully without breaking the locking tabs. If the connectors still do not fit, verify that you have the correct T-Connector for your Subaru Legacy model and contact the manufacturer or retailer.
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Sam
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:
$175.52$188.45
