Tekonsha Tow Harness, 7-Way TK118286TekonshaOriginal price was $135.00. Current price is $117.79.Out of Stock
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2004 Ford F-150
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Tekonsha Tow Harnesses are the replacement for your factory electrical connector to the back of your vehicle. These harnesses are used to link the wiring from your vehicle to the trailer when towing. Tekonsha Tow Harnesses 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 Replacement Tow Harnesses. Hit the road with the peace of mind only Tekonsha can provide. Life's a Journey. Stop Often.
| BRAND: | TEKONSHA |
| PART NUMBER: | 118247 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.25 LBS |
| UNIVERSAL OR SPECIFIC FIT: | SPECIFIC |
| CIRCUIT PROTECTED: | NO |
| HARNESS TYPE: | MALE FEMALE |
| TERMINAL QUANTITY: | 7 |
| WIRE COLORS: | BROWN, GREEN, YELLOW, WHITE |
| WIRE QUANTITY: | 7 |
| WIRE GAUGE: | 18 AWG, .85 AVSS |
| POWER LEAD REQUIRED: | NO |
| ELECTRICAL SYSTEM TYPE: | 2-WIRE SYSTEM |
| HARDWARE INCLUDED: | YES |
| AMPERAGE: | 30 A |
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 |
|---|---|---|
| 2004 | Ford F-150 | Tow Harness Wiring Package Uses all existing holes. No Drilling required Install Time is 5 minutes With Factory 4: Flat |
The Tekonsha Tow Harness, 7-Way TK118247 (Part #TK118247) fits 2004 Ford F-150 models. The 2004 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the Tekonsha Tow Harness, 7-Way TK118247 (Part #TK118247) is designed to fit the 2004 Ford F-150.
The Tekonsha Tow Harness, 7-Way TK118247 (Part #TK118247) fits the following vehicles: 2004 Ford F-150. Always verify your specific year, make, and model before ordering.
The Tekonsha Tow Harness, 7-Way TK118247 (Part #TK118247) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The 18247-037 fits most Ford F-150 models, but does not fit the F-150 Heritage with the old body style. Verify your vehicle's body style before purchasing. If you have a Heritage model, this harness is not compatible.
The kit includes the Trailer Tow Harness with a white ground wire and ring terminal, a 7-way socket connector, and a Trailer Tow Battery Charge Relay. A mounting bracket or electrical box is not included; you will need to source one separately to secure the harness in an accessible location.
You need a 13mm socket and ratchet or a 13mm wrench, and a test-probe. The 13mm tools are used to remove and reattach the ground stud in the driver's side frame rail. The test-probe is used to verify the installation.
Yes. Step 5 requires you to lower the spare tire to gain access to the vehicle wiring. After installation is complete, you must return the spare tire to its mounted position. Refer to your vehicle's owner's manual for instructions on lowering and raising the spare tire.
The Passenger Compartment Fuse Panel is located in the vehicle cab on the passenger's side, behind the kick panel. You will need to remove the kick panel to access the fuses and relays.
The Trailer Tow Battery Charge Relay is installed in the Passenger Compartment Fuse Panel on the passenger's side of the vehicle cab, behind the kick panel. The exact location within the fuse panel is specified in your vehicle's owner's manual. Consult your owner's manual to identify the correct relay location before inserting the relay.
The vehicle's wiring harness plugs are located in the rear of the vehicle, underneath, inside the driver's side frame rail. These plugs should match the ends of the Trailer Tow Harness. You will separate these plugs and install the Trailer Tow Harness between them.
Carefully separate the vehicle's existing wiring harness plugs located in the driver's side frame rail at the rear. The plugs should match the Trailer Tow Harness ends. Install the Trailer Tow Harness between the mating plugs so it acts as an intermediary connector.
Locate the existing ground stud inside the driver's side frame rail near the back bumper. Remove the ground stud, attach the ring terminal on the white wire of the Trailer Tow Harness to this stud, and then reattach the ground stud. The ground stud is 13mm in size.
The white wire on the Trailer Tow Harness has a ring terminal that is used for grounding. It is attached to the existing ground stud in the driver's side frame rail near the back bumper.
The 7-way socket connector is provided with the kit and is plugged into the Trailer Tow Harness after all other connections are complete. This connector allows you to connect a trailer to the harness.
Secure all loose wires and mount the Trailer Tow Harness in an accessible location using a bracket or electrical box (not included). You will need to source a mounting bracket or electrical box separately. After securing the harness, return the spare tire to its mounted position.
Test the installation with a test light or an actual trailer. All connections must be complete for the Trailer Tow Harness to function properly. Use a test-probe (included in tools needed) or connect a trailer to verify that all circuits are working correctly before towing.
Do not exceed the manufacturer's fuse rating for your vehicle. The Trailer Tow Battery Charge Relay is installed in the fuse panel, and you must use the correct fuse rating specified by the vehicle manufacturer. Consult your vehicle's owner's manual to determine the correct fuse rating and ensure the relay is protected by the appropriate fuse.
Yes. The existing 4-flat harness on the vehicle will remain functional after the Trailer Tow Harness is installed. The new harness does not disable or interfere with the original connector.
No. The 18247-037 does not fit the F-150 Heritage with the old body style.
You need a 13mm socket and ratchet (or 13mm wrench) and a test-probe.
No. A bracket or electrical box is not included and must be sourced separately to secure the harness in an accessible location.
Test the installation with a test light or an actual trailer to verify all connections are complete and working correctly.
No. The existing 4-flat harness on the vehicle will remain functional after the Trailer Tow Harness is installed.
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