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Replacement Cargo Carrier Light Harness

Replacement Cargo Carrier Light Harness

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  • Reviews (11)
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  • Videos (1)
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Optronics Accessories and Parts - WHCETR1B

  • Hitch Cargo Carrier
  • Flat Carrier Parts
  • Light Harness
  • Optronics

  • Wire harness for cargo carrier light kit
  • One piece harness includes 4-pole flat trailer connector and (2) 3-prong ends for connecting to lights

WHCETR1B Optronics Replacement Cargo Carrier Light Harness

Replaces 20049-1

California residents: click here

Video of Replacement Cargo Carrier Light Harness

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Optronics Hitch Cargo Carrier WHCETR1B Review

Today, we're going to look at the Optronics Replacement Cargo Carrier Light Harness. This is a replacement wire harness for your cargo carrier light kit. It is an all one-piece harness. It includes the four-way flat trailer connector and then the two three-prong ends for connecting to the lights on the cargo carrier. This part would plug into the four-way that's on your vehicle. Now, you can tell what side is for which by looking at the color of the wires.

The yellow wire here is the driver side, so this will plug into the light for the driver side. The wire here is green, which is the passenger side, and that will plug into the passenger side light. Now the length on this, just to give you an idea, the length of the driver side plug, from the plug to the Y, if you extend that all the way out, is about four feet. On the passenger side, from the plug to the Y, is about seven and a half feet, and then the length from this Y to the four-way that plugs in the vehicle is about one foot long. But that should do it for the review on the Optronics Replacement Cargo Carrier Light Harness. .

Customer Reviews

Replacement Cargo Carrier Light Harness - WHCETR1B

Average Customer Rating:  4.6 out of 5 stars   (11 Customer Reviews)


This product lasted a year. You should have a more heavy duty option comparable to the original factory product.


I just received my harness, working for far so good.


Item is as advertised. Great price and quality.


Very pleased with the service I have received. Questions about my order was address with a return email and assurance of quick resolution. Personal service was refreshing and a surprise in this day of auto response. Will continue to use etrailer for my hauling needs. BRAVO!

The cargo carrier light harness is a great addition to my luggage carrier. Easy to install, easy to install and well constructed. I highly recommend this product!
Bill - 08/01/2020


Optronics cargo carrier light harness worked perfectly for my application for an add on set of lights for my SUV. Paired this wire harness with a pair of PL-3 6.5 inch oval amber lights to add turn signals on my rooftop cargo basket. Used a 4 flat splitter and added a six foot wire loom to complete the installation. Quality product at a great price. Product video also helped make for quick install.


Just what I needed


As advertised. Works great I used it to put break lights on my Thule T2 Pro XT...great stuff and received it very quickly. etrailer rocks.


Easy to use harness. Plenty of length for wiring brake lights on a cargo carrier. One side is way longer than the other. I cut it down since I didn’t need the extra length the way I routed the wires.


Video installation instructions helped. Added wire loom and 4 flat extension and 4 flat splitter to complete my install. Quality product. Great price!




See what our Experts say about this Optronics Accessories and Parts

  • Replacement Wiring Harness for Cargo Rack LED Light Kit
    Yes, it is possible to buy just the wiring harness for the LED Light Kit for Draw-Tite, Tow Ready, Pro Series, and Rola Railed Cargo Carriers item # 98174LED. It is the Optronics Replacement Cargo Carrier Light Harness item # WHCETR1B.
    view full answer...
  • Troubleshooting Light Not Working with the Cargo Carrier Light Kit # 52014
    If you installed the Cargo Carrier Light Kit # 52014, and all of the functions on one light are not working then it sounds like the problem is the light itself. If some of the functions worked on the light then I would say that you have a problem with the wiring somewhere. You can test the light by running a ground to the marked pin and then test the other 2 pins with a 12V power source. If you think that the wiring may be an issue then you can replace it with part # WHCETR1B. For a replacement...
    view full answer...

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Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Amy B
Written by:
Amy B
Employee Wilson B
Updated by:
Wilson B
Employee Jenny M
Updated by:
Jenny M
Employee Brian T
Updated by:
Brian T
Employee Noah M
Updated by:
Noah M

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