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Tekonsha
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Select your vehicle to confirm this part fits.
1999 - 2001 Ford F-250 Super Duty
Confirmed to Fit
1999 - 2001 Ford F-350 Super Duty
Confirmed to Fit
1999 - 2001 Ford F-450 Super Duty
Confirmed to Fit
1999 - 2001 Ford F-550 Super Duty
Confirmed to Fit
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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: | 118243 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.15 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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4 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 1999 - 2001 | Ford F-250 Super Duty | Tow Harness Wiring Package Uses all existing holes. No Drilling required Install Time is 5 minutes With Factory 4: Flat |
| 1999 - 2001 | Ford F-350 Super Duty | Tow Harness Wiring Package Uses all existing holes. No Drilling required Install Time is 5 minutes With Factory 4: Flat |
| 1999 - 2001 | Ford F-450 Super Duty | Tow Harness Wiring Package Uses all existing holes. No Drilling required Install Time is 5 minutes With Factory 4: Flat |
| 1999 - 2001 | Ford F-550 Super Duty | Tow Harness Wiring Package Uses all existing holes. No Drilling required Install Time is 5 minutes With Factory 4: Flat |
Yes, the Tekonsha Tow Harness, 7-Way TK118243 (Part #TK118243) is designed to fit the 1999-2001 Ford F-250 Super Duty.
The Tekonsha Tow Harness, 7-Way TK118243 (Part #TK118243) fits 1999-2001 Ford F-250 Super Duty models. The 2001 model year is the last year covered by this part number. For newer models, check for an updated version.
The Tekonsha Tow Harness, 7-Way TK118243 (Part #TK118243) fits the following vehicles: 1999-2001 Ford F-250 Super Duty; 1999-2001 Ford F-350 Super Duty; 1999-2001 Ford F-450 Super Duty; 1999-2001 Ford F-550 Super Duty. Always verify your specific year, make, and model before ordering.
The Tekonsha Tow Harness, 7-Way TK118243 (Part #TK118243) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The manual does not specify which vehicle makes, models, model years, or trim levels this harness fits. The product is designed for vehicles with a factory trailer tow relay block and power distribution box in the engine compartment on the driver's side. Consult your vehicle's owner's manual or contact the manufacturer with your vehicle's year, make, model, and trim level to confirm compatibility.
The kit includes: two 30 amp maxi-fuses, two relays (Trailer Tow Backup Lamp Relay and Trailer Tow Battery Charge Relay), a trailer tow harness with a 4-flat connector end, and a 7-way socket connector. A bracket or electrical box for mounting is not included.
The manual does not specify required tools. However, you will need to access the power distribution box in the engine compartment and the rear wiring harness location under the vehicle. A test light or trailer is needed to test the installation after completion.
Yes. Disconnect the vehicle's negative battery cable before beginning installation. Reconnect it after inserting the relays and fuses into the power distribution box and before plugging in the 7-way socket.
The power distribution box and trailer tow relay block are located in the engine compartment on the driver's side. The cover(s) must be opened to access the relays and fuses. Consult your vehicle's owner's manual for the exact location and layout of fuse and relay positions.
The vehicle's wiring harness plugs are located in the rear, underneath the vehicle, near the driver's side frame rail behind the bumper. The existing plug should match the trailer wiring harness end connector.
1. Disconnect the negative battery cable. 2. Open the power distribution box cover in the engine compartment (driver's side). 3. Insert the two 30 amp maxi-fuses into the Trailer Tow Electric Brake and Trailer Tow Battery Charge fuse locations (consult your owner's manual for positions). 4. Insert the two relays into the Trailer Tow Backup Lamp Relay and Trailer Tow Battery Charge Relay locations in the trailer tow relay block. 5. Close the power distribution box cover. 6. Locate the vehicle's wiring harness plug at the rear underneath the vehicle near the driver's side frame rail behind the bumper. 7. Disconnect the existing 4-flat plug or remove its cap and install the trailer tow harness into the mating plug. 8. Reconnect the negative battery cable. 9. Plug the 7-way socket into the trailer tow harness. 10. Test with a test light or trailer. 11. Secure all loose wires and mount the harness in an accessible location with a bracket or electrical box.
You need to install two 30 amp maxi-fuses and two relays. The fuses go into the Trailer Tow Electric Brake and Trailer Tow Battery Charge fuse locations. The relays go into the Trailer Tow Backup Lamp Relay and Trailer Tow Battery Charge Relay locations in the trailer tow relay block. The exact positions vary by vehicle; consult your vehicle's owner's manual to locate these positions in your power distribution box.
No. The existing 4-flat harness on the vehicle will not be functional after the trailer tow harness is installed. The new harness replaces the factory 4-flat connector.
Not necessarily. Depending on your vehicle's build date and trim level, you may not use all the fuses and relays provided. Consult your vehicle's owner's manual to determine which fuse and relay locations are present in your specific vehicle's power distribution box.
Secure all loose wires and mount the trailer tow harness in an accessible location using a bracket or electrical box. These mounting components are not included with the kit and must be obtained separately.
The kit includes a 4-flat connector end on the trailer tow harness that plugs into the vehicle's mating 4-flat plug located at the rear underneath the vehicle. A 7-way socket connector is also provided and plugs into the trailer tow harness to connect the trailer.
After completing the installation, test the installation using either a test light or by connecting an actual trailer. This confirms that all fuses, relays, and connections are functioning correctly.
The manual does not specify vehicle applications. Contact the manufacturer with your vehicle's year, make, model, and trim level to confirm fitment.
The kit includes two 30 amp maxi-fuses, two relays, a trailer tow harness with 4-flat connector, and a 7-way socket. A mounting bracket or electrical box is not included.
Yes, disconnect the negative battery cable before starting installation. Reconnect it after installing the fuses and relays, before plugging in the 7-way socket.
No, the existing 4-flat harness will not be functional after installation. The new harness replaces it.
Test the installation using a test light or by connecting a trailer to confirm all fuses, relays, and connections are working correctly.
George
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May 22, 2023
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