bing tracking image
  1. Custom Fit Vehicle Wiring
  2. Optronics
  3. Wiring Adapters
  4. 7 Round to 5 Flat
  5. Plug and Lead
  6. Universal Fit
Optronics Trailer Connector w/ Coiled Cord - 7-Way Round to 5-Pin Delphi - 12V
etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Optronics

Optronics Trailer Connector w/ Coiled Cord - 7-Way Round to 5-Pin Delphi - 12V

Part Number: OPT48NB
In Stock
$69.63
Custom Fit Vehicle Wiring
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
By submitting this form, you understand and agree to our Terms of Sale, Website Terms of Use and Privacy Policy.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
You hook up the trailer and find the wiring connection has seen better days. This 12V replacement harness restores the link between a compatible 7-way round socket and 5-pin Delphi connector, while the coiled cord helps keep wiring from dragging. 1-800-940-8924 to order Optronics custom fit vehicle wiring part number OPT48NB or order online at etrailer.com. Free expert support on all Optronics products. Great prices and Fastest Shipping for Optronics Trailer Connector w/ Coiled Cord - 7-Way Round to 5-Pin Delphi - 12V. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (1)
  • Q & A (0)
  • Photos

Optronics Custom Fit Vehicle Wiring - OPT48NB

  • Wiring Adapters
  • 7 Round to 5 Flat
  • Plug and Lead
  • Universal Fit
  • Optronics

You hook up the trailer and find the wiring connection has seen better days. This 12V replacement harness restores the link between a compatible 7-way round socket and 5-pin Delphi connector, while the coiled cord helps keep wiring from dragging.


Highlights

  • Restore Trailer Wiring Connection: Replaces a worn or damaged connector between your vehicle and trailer.
  • Keep Wiring Off the Ground: Coiled cord retracts excess length between hookups and towing turns.
  • Match Existing 7-Way Vehicle Wiring: 7-way round connector plugs into a compatible vehicle-side socket.
  • Connect Compatible Trailer Wiring: 5-pin Delphi connector links with matching trailer-side wiring.
  • Accommodate Towing Movement: Coiled cord stretches during turns and retracts as alignment changes.
  • Support Standard 12V Electrical Systems: 12V configuration works with trailer lighting and electrical circuits.

Features to know about

Restore a Failed Trailer Connection

When trailer lights stop responding and the connector is the weak link, replacing the connection is often the fastest path back to service. This trailer connector is designed to replace a worn or damaged wiring connection between your vehicle and trailer, restoring the electrical link needed for normal trailer lighting and electrical operation. Once connected, your trailer wiring system is ready to communicate through the harness again.

Match Existing Connector Styles

Connector mismatch is one of the most common reasons a replacement harness won't work with an existing setup. This harness combines a 7-way round vehicle-side connector with a 5-pin Delphi trailer-side connector, allowing your existing connection points to remain in place. You can replace the harness itself while keeping your current wiring arrangement intact.

Keep Wiring Controlled During Turns

Loose trailer wiring can hang lower than needed between your vehicle and trailer, especially as the connection point moves through turns and normal towing motion. The coiled cord stretches when additional reach is needed and retracts when it isn't, helping manage excess cable length between hookup points. Your wiring stays more contained while still accommodating movement between the trailer and tow vehicle.

Support Standard 12V Trailer Systems

Replacing a connector only helps if it matches the electrical system it's intended to serve. This 12V trailer connector is designed for standard trailer lighting and electrical systems, making it a direct replacement option when your existing harness needs attention. After installation, your trailer can continue operating through the same 12V electrical architecture already in use.

Protected for Storage and Handling

Replacement electrical components are often stored until installation day, then transported with other trailer parts and supplies. Polypack packaging helps protect the connector during storage and shipping, keeping your replacement harness contained and ready when it's time to put your trailer back into service.

Specs

Diagram showing dimensions of coiled wiring

Application:

  • Trailer wiring connection

Connections:

  • Vehicle-side connection: 7-way round connector
  • Trailer-side connection: 5-pin Delphi connector

Electrical:

  • 12V

Warranty:

  • 3-Year limited


A57CCMCB Optronics Trailer Connector with Coiled Cord - 7-Way Round Vehicle Connector to 5-Pin Delphi Trailer Connector - 12V





Ratings & Reviews

2.0

1 reviews
Review sort icon
You hook up the trailer and find the wiring connection has seen better days. This 12V replacement harness restores the link between a compatible 7-way round socket and 5-pin Delphi connector, while the coiled cord helps keep wiring from dragging.

by:

Inaccurate description of the lengths in the specs


1
1

See what our Experts say about this Optronics Custom Fit Vehicle Wiring


Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Wilson B
Edited by:
Wilson B
Employee Lincoln B
Updated by:
Lincoln B
Employee Kim H
Written by:
Kim H

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.