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2018 - 2025 Honda Odyssey
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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: | 118781 |
| 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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1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2018 - 2025 | Honda Odyssey | Tow Harness T: Connector Assembly Drilling Required Install Time is 20 minutes With Fuse Provisions |
The 2018-2023 Honda Odyssey Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118781 (Part #TK118781) fits 2018-2025 Honda Odyssey models. The 2025 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 2018-2023 Honda Odyssey Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118781 (Part #TK118781) is designed to fit the 2018-2025 Honda Odyssey.
The 2018-2023 Honda Odyssey Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118781 (Part #TK118781) fits the following vehicles: 2018-2025 Honda Odyssey. Always verify your specific year, make, and model before ordering.
The 2018-2023 Honda Odyssey Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118781 (Part #TK118781) Drilling is required for installation. Basic hand tools are typically all you need.
The T-One® T-Connector (part number 118781-037) is a trailer wiring harness installation kit for Honda Odyssey vehicles. It provides a connection point for trailer lighting and electrical systems by integrating with the vehicle's existing wiring harness and fuse box.
Yes, the T-One® T-Connector model 118781-037 is designed specifically for Honda Odyssey vehicles. The manual does not specify which model years are compatible, so contact the manufacturer or check the product packaging for year-specific fitment information.
You will need: trim panel remover, 10mm socket & ratchet or 10mm wrench, drill with 3/32" drill bit, 1/4" socket, wire crimpers, wire cutters, Phillips head screwdriver, and a test-probe. These tools are required to access panels, remove fasteners, drill the grounding hole, and test the installation.
The kit includes: a blue tow plug, white grounding wire with eyelet and screw, double-sided tape, cable ties, a 15-amp fuse for the fuse holder, one 30-amp Slo-Blo fuse for fuse box position #12, and two 7.5-amp mini fuses for positions #10 and #11. 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 temporarily remove the vehicle's access panel on the passenger side to gain access to the vehicle's trailer wiring harness. You will also need to access the driver's side access panel to locate the fuse box and mount the T-Connector black box. The rear hatch must be opened and the rear seat pushed forward to begin installation.
Locate the blue tow plug by opening the access panel inside the storage compartment, where it is taped to the vehicle wiring harness. Insert the tow plug into the connector carefully, ensuring you do not damage the locking tabs. Push the connectors fully in until the locking tabs are completely in place.
Yes, drilling is required. You must drill a 3/32" hole to secure the white grounding wire to a suitable grounding point near the connector, such as the vehicle's frame or crossmember. 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 any exposed surfaces.
Locate a suitable grounding point near the connector, such as the vehicle's frame or crossmember. Do not drill into the vehicle floor or bed. Clean dirt and rustproofing from the area before drilling the 3/32" hole. The white wire is then secured using the eyelet and screw provided.
Use a 3/32" drill bit to create the hole for the white grounding wire. This hole is drilled into a suitable grounding point such as the vehicle's frame or crossmember.
Install the following fuses in the driver's side fuse box: one 30-amp Slo-Blo fuse in position #12, one 7.5-amp mini fuse in position #10, and one 7.5-amp mini fuse in position #11. Additionally, install a 15-amp fuse into the fuse holder on the T-Connector black box.
Mount the T-Connector black box using the double-sided tape 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 cut, pinch, or melt the wire.
Near the access panel, push the trim panel out slightly to route the 4-Flat to the cargo area by routing it out and underneath the trim panel. Store the 4-Flat in the rear cargo area when not in use.
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 exposed surfaces or the vehicle floor or bed. Secure all wiring with cable ties to prevent damage, rattling, or areas where the wire could be cut, pinched, or melted. Do not exceed the stated product ratings or the towing manufacturer rating to avoid overloading circuits, which can cause fires.
All connections must be complete for the T-One® 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 electrical system by temporarily removing the key from the ignition.
Do not exceed the lower of two ratings: the towing manufacturer rating (including the rating in your vehicle owner's manual) or the specific amperage ratings stated on the product. Overloading circuits can cause fires. The kit includes a 30-amp Slo-Blo fuse and two 7.5-amp mini fuses as part of the system protection.
Yes, it is designed specifically for Honda Odyssey. Check the product packaging or contact the manufacturer for specific model year compatibility.
One 15-amp fuse for the T-Connector fuse holder, one 30-amp Slo-Blo fuse for fuse box position #12, and two 7.5-amp mini fuses for positions #10 and #11.
Do not exceed the lower of the towing manufacturer rating (in your vehicle owner's manual) or the specific amperage ratings stated on the product. Overloading circuits can cause fires.
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Total for 4 items:
$148.83
Jennifer
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
