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Tekonsha
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2007 - 2017 Jeep Wrangler
Confirmed to Fit
2018 Jeep Wrangler JK
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: | 118416 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 0.38 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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2 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2007 - 2017 | Jeep Wrangler | Tow Harness T: Connector Assembly Drilling Required Install Time is 10 minutes Except with Right Hand Drive |
| 2018 | Jeep Wrangler JK | Tow Harness T: Connector Assembly Drilling Required Install Time is 10 minutes Except with Right Hand Drive |
The 2007-2017 Jeep Wrangler, 2018-2018 Jeep Wrangler JK Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118416 (Part #TK118416) fits the following vehicles: 2007-2017 Jeep Wrangler; 2018 Jeep Wrangler JK. Always verify your specific year, make, and model before ordering.
The 2007-2017 Jeep Wrangler, 2018-2018 Jeep Wrangler JK Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118416 (Part #TK118416) fits 2007-2017 Jeep Wrangler models. The 2018 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 2007-2017 Jeep Wrangler, 2018-2018 Jeep Wrangler JK Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118416 (Part #TK118416) is designed to fit the 2007-2017 Jeep Wrangler.
The 2007-2017 Jeep Wrangler, 2018-2018 Jeep Wrangler JK Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118416 (Part #TK118416) Drilling is required for installation. Basic hand tools are typically all you need.
The T-Connector is a trailer tow harness connector that allows you to connect a trailer to your vehicle's electrical system. It plugs into your vehicle's existing taillight wiring connectors and provides a 4-flat connector for the trailer. The connector routes through the taillight pocket on the driver's side of the vehicle.
The manual does not specify which vehicle makes, models, or years are compatible with part 118416-037. Check with the retailer or manufacturer using your vehicle's year, make, model, and bed length (if applicable) to confirm fitment before purchase.
You need a screwdriver and a drill with a 3/32" drill bit. Safety glasses are also required during installation.
The T-Connector includes cable ties, an eyelet, and a screw for grounding the white wire. A bracket or electrical box is not included but is recommended to mount the harness in an accessible location.
The manual does not specify whether battery disconnection is required. Consult your vehicle's owner's manual or a qualified technician before beginning installation.
The manual provides step-by-step instructions for installation but does not specify whether professional installation is required or recommended. If you are not comfortable working with vehicle electrical systems or drilling, consult a qualified technician.
Starting on the driver's side, remove the screws that hold the taillight in place. Carefully pull the taillight away from the vehicle to expose the vehicle wiring harness connectors in the pocket behind the taillight.
Separate the vehicle's wiring connectors carefully, being careful not to break the locking tabs. Check that the mating surfaces of the vehicle wiring connectors match the T-Connector ends. Ensure all connector surfaces are clean and free of dirt. Plug the harness into the connectors, being careful not to damage the locking tabs, and ensure connectors are fully inserted with locking tabs in place.
You must ground the white wire. First, locate a suitable grounding point near the connector, such as an existing ground stud. If no existing ground stud is available, drill a 3/32" hole and secure the white wire using the eyelet and screw provided. Do not drill into the vehicle floor or bed. Clean dirt and rustproofing from the area before drilling.
Drill a 3/32" hole for the ground wire eyelet and screw. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury. Do not drill into exposed surfaces or the vehicle floor or bed.
On the driver's side, route the T-Connector end with the 4-flat down through the taillight pocket between the bumper and body and towards the center of the bumper. Secure wires with the cable ties provided.
Secure the remainder of the T-Connector harness with the cable ties provided to prevent damage or rattling. Be careful to avoid any areas that would pinch, cut, or melt the wire. Secure all loose wires and mount the Trailer Tow Harness in an accessible location with a bracket or electrical box (not included).
Reinstall the taillight that was removed in step 1.
Do not exceed 7.5 amps on stop/turn lights or 7.5 amps on tail lights. Overloading the circuit can cause fires. Do not exceed the lower of your towing manufacturer's rating or these limits. Consult your vehicle's owner's manual and instruction sheet for additional information.
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.
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 exposed surfaces, the vehicle floor, or the vehicle bed. Read and follow all vehicle warnings and installation instructions before beginning.
Yes. All connector surfaces should be clean and free of dirt before plugging the harness into the vehicle's connectors. This ensures proper electrical contact.
Be careful not to damage the locking tabs when separating the vehicle's wiring connectors or plugging in the T-Connector harness. The manual does not provide instructions for repair or replacement of damaged locking tabs. If tabs are damaged, consult the manufacturer or a qualified technician.
The manual does not list compatible vehicles. Contact the retailer or manufacturer with your vehicle's year, make, model, and bed length to confirm fitment.
You need a screwdriver, drill with 3/32" bit, and safety glasses. The kit includes cable ties, an eyelet, and a screw for grounding. A bracket or electrical box (not included) is recommended for mounting.
Drilling is required only if no existing ground stud is available. You must drill a 3/32" hole to secure the white ground wire. Do not drill into the vehicle floor or bed.
Maximum 7.5 amps for stop/turn lights and 7.5 amps for tail lights. Do not exceed the lower of your towing manufacturer's rating or these limits, as overloading can cause fires.
Test and verify the installation with a test light or trailer once installed. All connections must be complete for proper function.
Yes. Remove the taillight screws on the driver's side and carefully pull the taillight away to access the wiring connectors in the pocket behind it.



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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