CURT Dual-Output Electrical Adapter (Adds 7-Way RV Blade to 4-Way Flat) Trailer Wiring Adapter ConnectorCURTIn Stock
View productAsk a Question About This Product
Our in-house experts typically reply within one business day.
Our in-house experts typically reply within one business day.
Tekonsha
Verify Fitment
Select your vehicle to confirm this part fits.
2011 - 2017 Honda Odyssey
Confirmed to Fit
Always the correct part
We know our products
Quality Products
Free Shipping!
Always the correct part
We know our products
Quality Products
Free Shipping!
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: | 118521 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 0.95 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.
Experts available to answer your questions
Call 888-634-94941 Year
1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2011 - 2017 | Honda Odyssey | Tow Harness T: Connector Assembly Uses all existing holes. No Drilling required Install Time is 30 minutes |
Yes, the 2011-2017 Honda Odyssey Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118521 (Part #TK118521) is designed to fit the 2011-2017 Honda Odyssey.
The 2011-2017 Honda Odyssey Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118521 (Part #TK118521) fits 2011-2017 Honda Odyssey models. The 2017 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2011-2017 Honda Odyssey Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118521 (Part #TK118521) fits the following vehicles: 2011-2017 Honda Odyssey. Always verify your specific year, make, and model before ordering.
The 2011-2017 Honda Odyssey Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118521 (Part #TK118521) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The T-Connector is an electrical harness assembly that integrates with your vehicle's rear fuse box to enable trailer lighting control. It includes a white 14-pin connector that plugs into the rear fuse box, a grey 12-pin connector that connects to a black box-module, a white wire with eyelet for grounding, a 4-flat connector for the trailer, and cable ties for securing the harness. The system allows you to control trailer stop, turn, and tail lights from your vehicle's electrical system.
Yes, the T-Connector is designed for the Honda Odyssey. The manual shows installation on a Honda Odyssey and provides specific steps for accessing the rear fuse box and interior components of that vehicle. However, the manual does not specify which model years are compatible, so you should verify the exact year of your vehicle with the manufacturer or retailer before purchasing.
Yes. If your vehicle is equipped with accessory backup sensors, the T-Connector is compatible. During installation, you unplug the sensor harness 14-pin connector from the rear fuse box, plug it into the other mating T-connector end, then plug the white 14-pin T-connector end into the fuse box. This allows the backup sensors to remain functional while the T-Connector is installed.
You will need: trim panel remover, flat screwdriver, test-probe, pliers, protective cloth, and a 10 mm socket or wrench. The protective cloth is used with pliers to safely remove threaded cargo net hooks without damage. The test-probe is used to verify electrical connections after installation.
The manual does not state whether fuses are included with the T-Connector. However, you must install one 10 amp fuse in rear fuse box position #8, and two 7.5 amp fuses in positions #2 and #11. You will need to obtain these fuses separately if they are not provided. Do not exceed these amperage ratings, as overloading the circuit can cause fires.
The manual does not explicitly state whether the battery must be disconnected before installation. However, the manual does instruct you to reset the vehicle electrical system after installation by temporarily removing the ignition key, reinserting it, and turning it to the proper position. For safety, consult your vehicle's owner's manual or a qualified technician regarding battery disconnection procedures.
Yes. Step 1 requires you to open the rear door and fold the rear seat forward. You must also temporarily remove the rear threshold plate. This provides access to the cargo area and fuse panel needed to route the T-Connector harness.
The rear threshold plate is a trim piece at the rear door opening that you temporarily remove in Step 1 to access the cargo area and route the T-Connector harness. Yes, you must reinstall it in Step 12 after the installation is complete, being careful not to pinch or cut the wires.
Starting from the cargo area, route the white T-Connector end up and behind the trim panel to the rear fuse box (Step 3). The harness should be secured with the cable ties provided to prevent damage or rattling. Be careful to avoid areas that would pinch, cut, or melt the wire. If routing through a grommet and along the exterior of the vehicle, avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire.
Mount the black box-module on a flat surface in an out-of-the-way location inside the vehicle. The surface must be free of moisture and mounted high enough to prevent exposure to direct contact with water or any liquid substance. The module must be mounted ONLY in the interior of the vehicle. Mounting on the exterior or in areas exposed to elements or moisture could cause serious damage to the vehicle and module.
If your vehicle has backup sensors, first unplug the sensor harness 14-pin connector from the rear fuse box connector and plug it into the other mating T-connector end (Step 4). Then plug the white 14-pin T-connector end into the mating connection in the fuse box connector (Step 5). Ensure the mating surfaces of the connectors match, are clean and free of dirt, and that connectors are fully inserted with locking tabs in place. Do not damage the locking tabs.
Locate the T-Connector's grey 12-pin connector and insert it into the mating connector located on the black box-module (Step 7). Check that the mating surfaces of the wiring connectors match. All connector surfaces should be clean and free of dirt. Be careful not to damage the locking tabs and ensure that connectors are fully inserted with locking tabs in place.
Route the white wire with eyelet towards the back of the vehicle near the threshold area (Step 6). Locate the existing ground stud. Loosen the bolt on the stud, place the screw eyelet on the stud, and re-tighten the bolt. Make sure all other ground connections are secure when removing and reattaching the ground stud, as this is critical for proper electrical function.
Install one 10 amp fuse in rear fuse box position #8. Install two 7.5 amp fuses in rear fuse box positions #2 and #11 (Step 9). Do not exceed these amperage ratings, as overloading the circuit can cause fires. Refer to your vehicle's fuse panel layout to locate these specific positions.
Mount the 4-flat connector in an accessible location (Step 11). If routing the wire through a grommet and along the exterior of the vehicle, be careful to avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. The connector should be positioned so you can easily connect and disconnect your trailer.
Use pliers and a protective cloth to remove the threaded cargo net hook(s) (Steps 1-2). The protective cloth prevents damage to the hooks and surrounding trim. Set aside all items removed, being careful not to damage parts. You will reinstall the cargo net in Step 12 after the T-Connector installation is complete.
The fuse panel cover is located near the rear seat on the driver's side. Open the cover to access the relays and fuses (Step 2). Being careful not to damage clips, partially remove the lower interior trim panels on the vehicle to gain full access. The manual does not provide specific measurements or detailed diagrams of the fuse panel location.
Wear safety glasses and use all safety precautions during installation. Use a protective cloth with pliers when removing cargo net hooks to avoid damage. Be careful not to damage trim panel clips when removing interior panels. Avoid pinching, cutting, or melting wires during routing and reinstallation. Ensure all ground connections are secure when removing and reattaching the ground stud. Do not exceed the specified fuse amperage ratings, as overloading the circuit can cause fires.
Do not exceed the lower of the towing manufacturer rating or the following limits: maximum stop/turn light is 2 per side (4.2 amps total per side), and maximum tail lights is 7.5 amps. Overloading the circuit can cause fires. The fuses you install (one 10 amp in position #8, and two 7.5 amp in positions #2 and #11) are sized to protect the circuit. Consult your vehicle's owner's manual and the trailer manufacturer's specifications 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 by connecting an actual trailer once installed (Step 10). For the initial test, reset the vehicle electrical system by temporarily removing the key from the ignition, reinserting the key, and turning it to the proper position. This resets the system and allows you to verify that all lights are functioning correctly.
After reinstalling the threshold, trim panels, cargo net, and cover in Step 12, verify that no wires are pinched or cut. Ensure all interior trim is properly seated and secure. Test the T-Connector with a test light or trailer to confirm all electrical connections are working correctly. Check that the black box-module is securely mounted and that all cable ties are properly securing the harness.
Yes. If equipped with backup sensors, unplug the sensor harness from the fuse box, plug it into the T-Connector, then plug the T-Connector into the fuse box. The sensors remain functional.
Install one 10 amp fuse in position #8, and two 7.5 amp fuses in positions #2 and #11. Do not exceed these ratings as overloading can cause fires.
Do not exceed: 2 stop/turn lights per side (4.2 amps per side) or 7.5 amps for tail lights. Consult your vehicle and trailer manufacturer specifications.
Total for 4 items:
$157.50
Free Shipping
Ships free on all orders
Authorized DealerQuick Ship
In stock and ready to ship — order now!
FREE ShippingFREE SHIPPING
Estimated delivery Tue, Aug 25 - Fri, Aug 28
Order before 2 PM EST Monday–Friday for same-day processing
Guaranteed safe & secure checkout
Ann
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