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  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 4 Flat
  6. Converter
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Item # 118441
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Custom Fit Vehicle Wiring

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Tekonsha Converter Custom Fit Vehicle Wiring - 118441
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Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required. Circuit-protected converter guards against shorts. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118441 or order online at Free expert support on all Tekonsha products. Guaranteed Lowest Price and Fastest Shipping for T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (9)
  • Q & A (0)
  • Photos
  • Why etrailer?

Tekonsha Custom Fit Vehicle Wiring - 118441

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • Converter
  • Tekonsha

Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required. Circuit-protected converter guards against shorts.


  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection points in trunk
    • Plug in T-connector
  • Includes circuit-protected tail light converter to ensure that your vehicle's wiring matches that of your trailer
    • Provides protection against electrical shorts and overloads
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


  • Maximum amperage:
    • Stop/turn lights: 2.1 amps per circuit
    • Tail lights: 5 amps per circuit
  • 1-Year limited warranty


This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located inside your trunk, behind the driver's-side tail light. You will need to remove some interior trim or carpeting to access this harness.

Once installation is complete, the 4-way flat connector will be stowed within your trunk.

It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.

Circuit-Protected Tail Light Converter

A tail light converter is built into this T-One connector. Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of your trailer. The tail light converter combines the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.

This converter safeguards itself and your vehicle against possible electrical shorts and overloads with integrated short circuit protection. Just install the connector as indicated and rest assured that the wiring system of your vehicle will remain feedback-free.

118441 Tow Ready T-1 T-Connector - 4 Wire

Installation Details 118441 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118441

Average Customer Rating:  4.3 out of 5 stars   (9 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required. Circuit-protected converter guards against shorts.


Easy ordering, and it showed up a day earlier than the estimated arrival date, which is a big help.

2003 Honda Accord

Very easy to install. etrailer were fast to ship and overall a great company.


Awesome! I ordered a product but my car had other plans. The connections did not work! Customer service was incredibly helpful and overnighted a new part to fix the situation and worked very closely with me to make sure everything worked. Thanks to Brian and Bill I have the right part this time.

2005 Honda Accord

Simple installation.

2004 Honda Accord

This hitch was good quality but I had to force the arms open an inch to get to fit. A lot of work. Instead of taking a couple of hours, it took five hours.



Perfect/easy fit.

2003 Honda Accord

Easy 5 minute hook up.


exellent thank you


Ask the Experts about this Tekonsha Custom Fit Vehicle Wiring

  • Wiring Harness for a 2004 Honda Accord Pulling a Boat Trailer
    A converter for your vehicle with have 5 wires. Red - brake light, yellow - left turn, green - right turn, brown - tail/running light, and white is a ground. As far as what color wires you need to match to in your Accord, you will need to use a circuit tester, like part # 40376, and test the wires in the trunk. Pull back the liner from the driver side, behind the tail light and the fender, and look for the tail light wire bundles. We have a custom fit trailer harness for your 2004 Honda...
    view full answer...
  • Trailer Wiring Harness Recommendation for a 2004 Honda Accord 4 Door Sedan
    For the 4 door sedan model 2004 Honda Accords the correct wiring harness is part # 118302, for the 2 door coupes the correct part number is # 118441. Since you have a sedan you would need the part # 118302. I attached an install video for you to check out.
    view full answer...
  • Trailer Wiring Harnesses for a 2005 Honda Accord
    There are different wiring harnesses for the 2005 Honda Accord, both of which have a converter box. The converters are already part of the harness so you just need to install the correct one. If you have a 2 door model, use # 118441. For a 4 door sedan use # 118302. I have linked instructions for both. A converter is needed to convert the 3-wire signal from the vehicle down to a 2-wire signal used by most trailers.
    view full answer...
  • Is The Rubber Hitch Tube Cover # 2211 Included with the Hitch for 2004 Honda Accord
    You will need to purchase a Rubber Tube Cover # 2211 separately from the Draw-Tite Trailer Hitch # 24787. I attached review/installation videos for the # 2211 and the # 24787 for you to check out as well as installation instructions for the # 24787. To complete your towing setup you may be interested in the following products: Draw-Tite Custom Fit Vehicle Wiring # 118441 (installation instructions attached) Hitch Ball # 19256
    view full answer...
  • Hitch Recommendation for a 2003 Honda Accord with a Factory Body Kit
    I spoke with my contact at Draw-Tite and he informed me that they do not have any fit information for the 2003 Honda Accords with body kits. The best solution he could recommend for you is to check out the installation instructions for this product and compare them to your vehicle to see if you think it would work. I attached installation instructions and a installation video for this product for you to check out also. You may be interested in the following products to complete your towing...
    view full answer...
  • Parts Needed to Tow a Trailer with a 2005 Honda Accord and Draw-Tite Hitch 24787
    The 2005 Honda Accord would not come standard with a trailer wiring harness. In addition to the 24787 hitch, you will need a few more items to complete the towing setup. First, you will need a ball mount. Ball mounts are inserted and pinned into the hitch and provide the platform for the hitch ball. The proper ball mount for your 2005 Honda Accord with the hitch you were looking at is part # 3592. Check the trailer you will be towing and find out what ball size you need. Make sure the...
    view full answer...

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Info for this part was:

Employee Jameson C
Expert Research:
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Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
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Employee Isabelle B
Updated by:
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