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Hopkins Plug-In Simple Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Hopkins Plug-In Simple Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Item # HM40165

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Custom Fit Vehicle Wiring

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Custom Fit Vehicle Wiring HM40165 - 4 Flat - Hopkins
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  • Custom Fit
  • Trailer Hitch Wiring
  • Hopkins
  • 4 Flat
  • No Converter
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into OEM tow package wiring harness - no cutting or splicing required. Call 800-298-8924 to order Hopkins custom fit vehicle wiring part number HM40165 or order online at etrailer.com. Free expert support on all Hopkins products. Guaranteed Lowest Price and Fastest Shipping for Hopkins Plug-In Simple Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.


  • All Info
  • Reviews (2)
  • Q & A (3)
  • Photos
  • Why etrailer?

Hopkins Custom Fit Vehicle Wiring - HM40165

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into OEM tow package wiring harness - no cutting or splicing required.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Designed for use with a factory tow package
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing
    • Locate connection point behind rear bumper
    • Plug in connector
  • Protective connection terminals resist corrosion
  • Comes with dust cap for 4-way flat connector, cable ties, and terminal grease packet for electrical connections
  • 90-Day limited warranty


Installation

This custom-fit T-connector plugs into your vehicle's factory tow package wiring harness, which is located behind the rear bumper, near the center of your vehicle.


Once installation is complete, the 4-way connector will be stowed beneath your vehicle, near the trailer hitch. A mounting bracket (sold separately) is recommended to keep the connector secure.


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.



40165 Plug-in Simple Hopkins T-Connector with 4-Pole Trailer Connector



HM40165 Installation InstructionsInstallation Details HM40165 Installation instructions

This Product Fits The Following Vehicles

2002 - 2004 Ford F-250 and F-350 Super Duty with factory 4-flat



California residents: click here



Customer Reviews

Hopkins Plug-In Simple Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector - HM40165

Average Customer Rating:  5.0 out of 5 stars   (2 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into OEM tow package wiring harness - no cutting or splicing required.

- HM40165
by:
2004 Ford F-250 and F-350 Super Duty

Easy to install. Works perfectly. 511202



- HM40165
by:

I searched all over for a 6 wire plug for my boat trailer. This is exactly what I needed. 449791


2
2

Ask the Experts about this Hopkins Custom Fit Vehicle Wiring
Do you have a question about this Custom Fit Vehicle Wiring?


  • Replacement Trailer Wiring Harness for a 2003 Ford F-350
  • I do have options for you but we do not carry OEM replacement parts. The correct harness for you would depend on what type of connector you have on the frame rail. If you have a square connector then you are going to want to use the Hopkins Plug-In Simple Wiring Harness for Factory Tow Package part # HM40165 which is a direct plug and play option. In order to add a 7-way you are then going to want to use the Adapter 4-Pole to 7-Pole and 4-Pole part # 37185 which will give you both 4 and...
    view full answer...

  • Troubleshooting Trailer Light Functions After Trailer Connection Pulled Apart
  • It sounds like you have the factory wiring harness, but the # 118243 is not a fit for your vehicle. It is only a fit for 1999 to 2001 models. You would need either the Hopkins Plug-In Simple Wiring Harness # HM40165 or Curt # C55265. If you test your factory wiring connection with a circuit tester like # PTW2993 prior to connecting a harness, you will be able to determine if the issue is the harness or prior to the harness. If you are only having connection issues on the trailer...
    view full answer...

  • Adding 7-Way and 4-Way Connectors to a 2003 Ford F-250 with Factory Square Plug Behind Bumper
  • We do have a solution for you that plugs into the square plug on the rear of your 2006 Ford F-250 but it will require 2 piece to get you to a 7-Way and 4-Way combine connector. Start off by installing the Hopkins Connector # HM40165. This has a 4-Way connector and a loose blue wire as well as a loose red wire. The next step is to install the Hopkins Adapter # 37185 which has a 7-Way and a 4-Way connector. The 4-Way on the adapter will connect to the 4-Way on the 40165 and then you...
    view full answer...


Do you have a question about this Custom Fit Vehicle Wiring?




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Info for this part was:

Edited by:
Lindsey S
Written by:
Alexander C

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