Our in-house experts typically reply within one business day.
Tekonsha
Verify Fitment
Select your vehicle to confirm this part fits.
2015 - 2025 Ford Transit-350
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: | 118722 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 3 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: | YES |
| 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.
Experts available to answer your questions
Call 888-634-94941 Year
1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2015 - 2025 | Ford Transit-350 | Tow Harness T: Connector Assembly Drilling Required Install Time is 60 minutes Except Single Rear Wheel with 148" Wheelbase |
Yes, the 2015-2023 Ford Transit-350 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118722 (Part #TK118722) is designed to fit the 2015-2025 Ford Transit-350.
The 2015-2023 Ford Transit-350 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118722 (Part #TK118722) fits 2015-2025 Ford Transit-350 models. The 2025 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2015-2023 Ford Transit-350 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118722 (Part #TK118722) fits the following vehicles: 2015-2025 Ford Transit-350. Always verify your specific year, make, and model before ordering.
The 2015-2023 Ford Transit-350 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118722 (Part #TK118722) Drilling is required for installation. Basic hand tools are typically all you need.
The T-One® T-Connector is a trailer tow harness for Ford Transit 350 vehicles. It provides electrical connections between the vehicle's taillight wiring and a 4-Flat trailer connector, allowing you to tow a trailer with integrated lighting control.
Yes, the T-One® T-Connector (part number 118722-037) is designed for the Ford Transit 350. The manual does not specify whether it fits other Transit models or years.
You will need: trim panel remover, drill with 3/32" drill bit, Phillips head screwdriver, test probe, and flat screwdriver. Safety glasses are also required during installation.
The kit includes: two T-One® T-Connector ends (one with yellow wire, one with green wire), a 4-Flat connector, a black box module, double-sided tape, cable ties, a yellow fuse holder with 15 amp fuse, a white eyelet and screw for grounding, and yellow butt connectors for wire connections.
The manual offers two options: Option 1 is to access the positive 12V power post without disconnecting the battery; Option 2 is to disconnect the vehicle's negative (-) battery cable. You may choose either approach.
Open the rear door. Remove the taillights on both the driver and passenger side by removing the screws, then carefully pull the taillight away from the vehicle. Be careful not to damage the alignment pins.
On the driver's side, locate the vehicle's taillight wiring harness connector. Separate the connector carefully without breaking the locking tabs. Insert the T-One® T-Connector end with the yellow wire between the vehicle wiring connectors and lock into place, ensuring the locking tabs are fully engaged. Repeat on the passenger's side using the T-Connector with the green wire.
Route the harness containing the green wire and 4-Flat connector down the opening behind the taillight on the driver's side. Route the 4-Flat harness underneath and to the center of the vehicle. Route the harness containing the green wire underneath the vehicle and up through the opening behind the passenger's side taillight. Avoid hot pipes, heat shields, fuel tank, and any points that may pinch or break the wire.
Yes. You must drill a 3/32" hole on the driver's side near the taillight connectors to secure the white ground wire with an eyelet and screw. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury. Do not drill into any exposed surfaces.
Drill a 3/32" hole on the driver's side near the taillight connectors. Verify what is behind the surface before drilling to avoid damage to the vehicle or personal injury, and do not drill into any exposed surfaces.
Two options are provided: Option 1: Open the hood, locate the positive +12V power post, and remove the nut using a 15mm socket or wrench. Option 2: Disconnect the vehicle's negative (-) battery cable. Remove the fuse from the yellow fuse holder if not already removed. Cut the fuse holder wire, attach the ring terminal, and secure it to the vehicle's positive (+) battery cable. Connect the other end of the fuse holder to the black 12 gauge wire using the yellow butt connector provided.
The system uses a 15 amp fuse. The fuse holder is provided with the kit and must be installed in the power circuit between the vehicle's positive battery cable and the T-Connector black box.
Route the black 12 gauge wire out of the engine compartment and to the rear driver's side of the vehicle. Connect the other end of the black wire to the red power wire located on the T-One® T-Connector's black box using the yellow butt connector provided. Avoid hot pipes, heat shields, fuel tank, and any points that may pinch or break the wire.
The system uses the following wire colors: yellow wire (driver's side T-Connector), green wire (passenger's side T-Connector and harness routing), white wire (ground connection), black wire (12 gauge power wire from battery), and red wire (power input on the black box module). Yellow butt connectors are used to join wires.
On the driver's side, mount the T-One® T-Connector black box using the double-sided tape provided. Ensure the epoxy side of the module is pointed towards the ground to prevent water buildup. Secure the remainder of the harness with the cable ties provided to prevent damage or rattling, being careful to avoid areas that would cut or pinch the wire.
Mount the 4-Flat end in an accessible location using a bracket or electrical box. The bracket or electrical box is not included with the kit and must be obtained separately.
Reinstall the taillight housing assemblies, positioning the vehicle wiring harness between the housing and the vehicle body. Ensure the T-Connector ends are fully locked into the vehicle connectors before reinstalling the taillights.
All connections must be complete before testing. Test and verify 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. Reconnect the negative battery cable and install the 15 amp fuse into the fuse holder before testing.
Do not exceed the lower of the towing manufacturer rating (including in your vehicle owner's manual) or the specific amperage ratings stated on the product. Overloading circuits can cause fires. The manual does not specify the product's amperage rating; refer to the product label or contact the manufacturer.
Always wear safety glasses during installation. Read and follow all warnings and instructions before beginning. Verify what is behind any surface before drilling to avoid damage to the vehicle or personal injury. Do not drill into exposed surfaces. Route wires carefully to avoid hot pipes, heat shields, fuel tank, and pinch points. Ensure all connections are complete and verified before use.
The epoxy side must point toward the ground to prevent water buildup inside the module, which could damage the electrical components.
Yes, the T-One® T-Connector (part 118722-037) is designed for the Ford Transit 350.
Trim panel remover, drill with 3/32" bit, Phillips head screwdriver, test probe, flat screwdriver, and safety glasses.
The system uses a 15 amp fuse, which is provided in the kit.
Do not exceed the lower of the vehicle manufacturer's towing rating or the product's amperage rating. The manual does not specify the product rating; check the product label.
On Sale Today
Original price was $106.25. Current price is $94.76.You save $11.49 (11%)
Free Shipping
Ships free on all orders
Authorized Dealer
Quick 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
Total for 4 items:
$170.71$182.20
Sam
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
