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Tekonsha
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Select your vehicle to confirm this part fits.
2009 - 2014 Acura TSX
Confirmed to Fit
2008 - 2012 Honda Accord
Confirmed to Fit
2008 - 2012 Honda Accord
Confirmed to Fit
2011 - 2013 Honda Civic
Confirmed to Fit
2006 - 2017 Honda Civic
Confirmed to Fit
2007 - 2013 Honda Fit
Confirmed to Fit
2004 - 2013 Mazda Grand Vitara
Confirmed to Fit
2007 - 2012 Mitsubishi Galant
Confirmed to Fit
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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: | 118420 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1 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: | NO |
| 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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8 compatible vehicles
| Year | Make & Model | Style | Notes |
|---|---|---|---|
| 2009 - 2014 | Acura TSX | Sedan · 4-Door | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes |
| 2008 - 2012 | Honda Accord | Coupe | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes |
| 2008 - 2012 | Honda Accord | Sedan | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes |
| 2011 - 2013 | Honda Civic | — | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes Except with LED Taillights Package |
| 2006 - 2017 | Honda Civic | Sedan · 4-Door | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes Except with LED Taillights Package |
| 2007 - 2013 | Honda Fit | — | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes |
| 2004 - 2013 | Mazda Grand Vitara | — | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes Except Grand Touring LED Taillights Package |
| 2007 - 2012 | Mitsubishi Galant | — | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes |
The Tekonsha T-One T-Connector Harness, 4-Way Flat, w/Circuit Protected Converter TK118420 (Part #TK118420) fits the following vehicles: 2009-2014 Acura TSX; 2008-2012 Honda Accord; 2006-2017 Honda Civic; 2007-2013 Honda Fit; 2004-2013 Mazda Grand Vitara; 2007-2012 Mitsubishi Galant. Always verify your specific year, make, and model before ordering.
Yes, the Tekonsha T-One T-Connector Harness, 4-Way Flat, w/Circuit Protected Converter TK118420 (Part #TK118420) is designed to fit the 2009-2014 Acura TSX.
The Tekonsha T-One T-Connector Harness, 4-Way Flat, w/Circuit Protected Converter TK118420 (Part #TK118420) fits 2009-2014 Acura TSX models. The 2017 model year is the last year covered by this part number. For newer models, check for an updated version.
The Tekonsha T-One T-Connector Harness, 4-Way Flat, w/Circuit Protected Converter TK118420 (Part #TK118420) Drilling is required for installation. Basic hand tools are typically all you need.
The T-Connector 118420-037 is designed for 07-08 Honda Fit, Honda Civic 4 Door, Mazda 3 (All Models), Honda Accord 4 Door Sedan, and Honda Accord Sedan. If your vehicle is not listed, it is not compatible with this product.
For 07-08 Honda Fit only, you must use the vehicle's blue 3-pin housing, not the green 3-pin housing. Using the wrong connector will prevent proper function.
You will need: Philips head screwdriver, trim panel remover, drill with 3/32" drill bit, and 1/4" socket.
Open the trunk or hatch and locate the vehicle wiring inside the rear cargo area. Partially remove the plastic threshold cover, side access panels, or carpet panels and cargo trays to access the connection points at the back of each taillight housing.
1. On the driver's side, attach both ends of the T-Connector containing the yellow, brown, and red wires to the driver's side taillight housing. 2. Route the T-Connector containing the green wire below the threshold cover to the passenger's side taillight housing. 3. Attach the green wire connector to the passenger's side taillight housing. Be careful not to damage the locking tabs and ensure connectors are fully inserted with locking tabs in place.
Be careful not to break the locking tabs when separating the original connectors. When attaching the T-Connector, ensure that connectors are fully inserted with locking tabs in place. Do not damage the locking tabs during insertion.
Yes. All connector surfaces should be clean and free of dirt before connecting the T-Connector. Clean the area to ensure proper electrical contact.
Drilling is required only for the ground wire connection. You must locate a suitable grounding point near the connector, such as an existing ground stud, or drill a 3/32" hole to secure the white wire using the eyelet and screw provided. Do not drill into the vehicle floor or bed. Do not drill into any exposed surfaces. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury.
Use a 3/32" drill bit to create the hole for the ground wire connection.
No. Do not drill into the vehicle floor or bed. Locate an existing ground stud or drill in an appropriate location that does not penetrate the floor or bed structure.
Yes. Clean dirt and rustproofing from the area where you will secure the white ground wire using the eyelet and screw provided. This ensures proper electrical contact.
Reinstall the plastic trim panels, threshold, storage covers, floor covering, and other items removed during installation. Be careful not to pinch or cut the wires when reinstalling these components.
All connections must be complete for the T-Connector to function properly. Test and verify the installation with a test light or by connecting a trailer once installed.
Do not exceed the lower of the towing manufacturer rating or: Maximum stop/turn light: 1 per side (2.1 amps); Maximum tail lights: 5 amps. Overloading the circuit can cause fires. Consult your vehicle's owner's manual and instruction sheet for additional information.
Store the 4-Flat connector in the trunk or hatch area when not in use.
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 any exposed surfaces. Be careful not to pinch or cut wires when reinstalling trim panels and other components.
The T-Connector fits 07-08 Honda Fit, Honda Civic 4 Door, Mazda 3 (All Models), Honda Accord 4 Door Sedan, and Honda Accord Sedan.
Philips head screwdriver, trim panel remover, drill with 3/32" bit, and 1/4" socket.
Test and verify the installation with a test light or by connecting a trailer once installed. All connections must be complete for proper function.
Use the vehicle's blue 3-pin housing, not the green 3-pin housing.
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Total for 4 items:
$147.94
Jennifer
The staff was able to quickly assist me with locating the correct product I needed. Shipping was really fast. Item arrived in 2 days. Will be using TowUniverse again!!
May 22, 2023
