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Tekonsha
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2005 - 2010 Chevrolet Cobalt
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2006 - 2011 Chevrolet HHR
Confirmed to Fit
2007 - 2009 Pontiac G5
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: | 118407 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1 LBS |
| UNIVERSAL OR SPECIFIC FIT: | SPECIFIC |
| CIRCUIT PROTECTED: | NO |
| 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: | 2-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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The 2007-2009 Pontiac G5, 2005-2010 Chevrolet Cobalt, 2006-2011 Chevrolet HHR Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118407 (Part #TK118407) fits 2005-2010 Chevrolet Cobalt models. The 2011 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2007-2009 Pontiac G5, 2005-2010 Chevrolet Cobalt, 2006-2011 Chevrolet HHR Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118407 (Part #TK118407) fits the following vehicles: 2005-2010 Chevrolet Cobalt; 2006-2011 Chevrolet HHR; 2007-2009 Pontiac G5. Always verify your specific year, make, and model before ordering.
Yes, the 2007-2009 Pontiac G5, 2005-2010 Chevrolet Cobalt, 2006-2011 Chevrolet HHR Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118407 (Part #TK118407) is designed to fit the 2005-2010 Chevrolet Cobalt.
The 2007-2009 Pontiac G5, 2005-2010 Chevrolet Cobalt, 2006-2011 Chevrolet HHR Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118407 (Part #TK118407) Drilling is required for installation. Basic hand tools are typically all you need.
The T-Connector is an electrical adapter that integrates a trailer connector into your vehicle's existing taillight wiring system. It allows you to connect a trailer to your vehicle by tapping into the rear taillight circuits without permanently modifying the vehicle's original wiring. The 4-flat connector should be stored in the rear cargo area when not in use.
The T-Connector is designed for vehicles with two sets of taillight connection points accessible from the rear cargo area. Your vehicle must have wiring access side panels and taillight housings with matching connection points. Consult your vehicle's owner's manual or contact the manufacturer if you are unsure whether your vehicle has the required connection points.
You will need: a drill with a 3/32" drill bit, a Phillips head screwdriver, and a trim panel remover. The manual lists these as recommended tools. You should also have a test light or trailer available to verify the installation after completion.
The T-Connector kit includes an eyelet and screw for securing the white ground wire, and cable ties for securing the harness. The 4-flat connector is also part of the system and should be stored in the rear cargo area when not in use.
You must remove both wiring access side panels from the rear cargo area, and carefully remove the foam insulation padding on each side to access the taillight connection points. You will also need to pull up the cargo floor panel and remove the cargo tray by unscrewing the spare tire hold down nut. All removed parts must be reinstalled after installation.
Begin on the driver's side. Attach the T-Connector end containing the yellow wire to the driver's side taillight connection point. Ensure the connector is fully inserted with the locking tabs in place. Then repeat the process on the passenger's side using the T-Connector end containing the green wire.
Route the T-Connector containing the green wire behind and under the trim panel, along the vehicle floor near the spare tire. Continue routing the wire across the vehicle and behind the trim panel, then up to the wiring access area. Use the cable ties provided to secure the harness and prevent damage, rattling, or pinching, cutting, or melting of the wire.
Locate a suitable grounding point near the connector in the rear cargo area. Do not drill into the vehicle floor or bed. Clean dirt and rustproofing from the area, then drill a 3/32" hole. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury. Do not drill into any exposed surfaces.
Yes. You must drill a 3/32" hole to secure the white ground wire using the eyelet and screw provided. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury. Do not drill into the vehicle floor, bed, or any exposed surfaces.
Do not exceed the lower of your vehicle manufacturer's rating or: maximum 7.5 amps per side for stop/turn lights, and maximum 7.5 amps for tail lights. Overloading the circuit can cause fires. Consult your vehicle's owner's manual and instruction sheet for additional information about your vehicle's electrical capacity.
The T-Connector has three wire colours: yellow, green, and white. The yellow wire end connects to the driver's side taillight connection point. The green wire end connects to the passenger's side taillight connection point and is routed across the vehicle floor. The white wire is the ground wire, which is secured to a grounding point near the connector using the provided eyelet and screw.
Separate the vehicle's wiring connectors carefully, being careful not to break the locking tabs. Ensure all connector surfaces are clean and free of dirt. Attach each end of the T-Connector to the matching taillight connection point (use the top set of connection points). Ensure the connectors are fully inserted with locking tabs in place. All connections must be complete for the T-Connector to function properly.
After installation, test and verify the installation with a test light or trailer to ensure all connections are complete and functioning properly. Reinstall all removed components: both foam insulation padding, wiring access panels, cargo tray, spare tire hold down nut, and cargo floor panel. Store the 4-flat connector in the rear cargo area when not in use.
All connections must be complete for the T-Connector to function properly. Testing with a test light or trailer verifies that the installation was successful and that all taillight circuits are working correctly before you use the trailer connector. This ensures safe operation and prevents electrical failures.
Before drilling, verify what is behind any surface to avoid damage to the vehicle and personal injury. Do not drill into the vehicle floor, bed, or any exposed surfaces. Clean dirt and rustproofing from the area before drilling the 3/32" hole. Use a drill with a 3/32" bit and secure the white wire using the eyelet and screw provided.
Overloading the circuit can cause fires. Do not exceed the lower of your vehicle manufacturer's rating or 7.5 amps per side for stop/turn lights and 7.5 amps for tail lights. Consult your vehicle's owner's manual and instruction sheet for additional information about your vehicle's electrical capacity and limitations.
Yes. All connector surfaces should be clean and free of dirt before you attach the T-Connector. This ensures a proper electrical connection and prevents corrosion or poor contact.
The connectors are fully inserted when the locking tabs are in place. Ensure that each end of the T-Connector is pushed completely into the matching taillight connection point until you feel the locking tabs engage.
Use the cable ties provided to secure the remainder of the T-Connector harness after routing it through the vehicle. This prevents damage or rattling. Be careful to avoid any areas that would pinch, cut, or melt the wire.
The T-Connector requires two sets of taillight connection points accessible from the rear cargo area. Check your vehicle's owner's manual or contact the manufacturer to confirm your vehicle has the required wiring access panels and matching connection points.
You need a drill with 3/32" bit, Phillips head screwdriver, and trim panel remover. You should also have a test light or trailer available to verify the installation.
Yes. You must drill a 3/32" hole to secure the white ground wire. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury. Do not drill into the vehicle floor, bed, or exposed surfaces.
Do not exceed 7.5 amps per side for stop/turn lights or 7.5 amps for tail lights, or your vehicle manufacturer's rating (whichever is lower). Overloading can cause fires.
Test and verify the installation with a test light or trailer to ensure all connections are complete and functioning properly before using the trailer connector.
The yellow wire end connects to the driver's side. The green wire end connects to the passenger's side. Both must be fully inserted with locking tabs in place.
3 compatible vehicles
| Year | Make & Model | Style | Notes |
|---|---|---|---|
| 2005 - 2010 | Chevrolet Cobalt | 2-Door | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes |
| 2006 - 2011 | Chevrolet HHR | — | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes |
| 2007 - 2009 | Pontiac G5 | 2-Door | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes |
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Matt
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
