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7-Way to 4-Way/5-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs

7-Way to 4-Way/5-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs

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Curt 7-way connector to 4-way or 5-way flat connector is designed for use on vehicles with Trailer Lamp-Out sensors when towing a trailer equipped with LED lights. Lowest Prices for the best wiring from Curt. 7-Way to 4-Way/5-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs part number C35FR can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (22)
  • Q & A (6)
  • Videos (1)
  • Photos
  • Why etrailer?

Curt Wiring

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Curt 7-way connector to 4-way or 5-way flat connector is designed for use on vehicles with Trailer Lamp-Out sensors when towing a trailer equipped with LED lights.


Features:

  • 7-Way RV style adapter to 4-pole and 5-pole flat trailer connectors
  • Designed for use on vehicles with Trailer Lamp-Out sensors - such as Audi, Mercedes-Benz, Porshe, and Volkswagen vehicles with the factory tow package
  • Plugs into a 7-way connector on the vehicle and 4-way or 5-way flat connector on the trailer
  • 1-Year limited warranty


57004 Curt 7-Way to 4-Way and 5-Flat Trailer Adapter for VW, Audi, Porshe, and Mercedes-Benz Towing Trailers with LED Lights

Item # C35FR





Video of 7-Way to 4-Way/5-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs

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




Video Transcript for Review of Curt Wiring - Wiring Adapters - C35FR

Jeff: Hello everybody. This is Jeff at etrailer.com. Today, we're going to take a look at this Curt seven way to four way or five way trailer adapter for towing trailers with LEDs. This is an electrical adaptor, it's designed to adapt your seven way RV blade vehicle socket to fit either a four way or five way flat plug on a trailer that has LED lights. It does feature built-in resistors for vehicles with computers that don't recognize those LED lights and it'll enable them to be compatible with trailers that have them.So it's designed for use on vehicles with the trailer lamp out sensors, such as the Audis, the Mercedes, Porsche, and Volkswagen vehicles with the factory tow package. Basically, this adapter will plug into your seven way connector on the vehicle.

And you can see on this end it will offer either a four way or five way flat connector for the trailer to connect to. And you can see the top one is your ground. So if it's a four way, you'll just plug in using the ground and then the three under that. If it's a five way you just plug in all of them. If you notice it does have the nice finger grips, make it easy installation and removal of the adapter.

But that should do it for the review on this Curt seven way to four way and five way trailer adapter for towing trailers with LEDs.


Customer Reviews

7-Way to 4-Way/5-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs - C35FR

Average Customer Rating:  5.0 out of 5 stars   (22 Customer Reviews)

Curt 7-way connector to 4-way or 5-way flat connector is designed for use on vehicles with Trailer Lamp-Out sensors when towing a trailer equipped with LED lights.

- C35FR
by:

I recently purchased this product and it solved the light monitoring system errors that I was having with my 2012 BMW X5. My trailer was equipped with LED lights and the adapter was the perfect solution.



- C35FR
by:

Very Happy with the product and shipping (fast delivery and packaged great.) Thank You. I look forward to future purchased with you. Highly Recommend etrailer.com Thanks



- C35FR
by:

This item arrived quickly and on time. Product as described and fixed my issue with my 2020 truck not picking up LED light on my trailor. I spent 60000 on a new truck and have to buy this to get my trailor to work properly. Chevy should be ashamed of themselves! Glad they have products like this.



- C35FR
by:

The customer service was excellent! I had a question about a lighting system for my tow vehicle and RV. I was directed to a match and they were correct. Not only does it work, they didn’t recommend the highest priced item hence saving me money.



- C35FR
by:

I like that it is a "One piece unit" without external wires



- C35FR
by:

Problem solved! I had ordered a set of the Blazer wireless LED trailer lights for the towed vehicle behind my motorhome. They didn't work. After trying another set that didn't work then calling the manufacturer I was about to give up. However, thanks to Tommie C at etrailer, he recommended this adapter and it resolved the issue. etrailer is the BEST! Great products, great customer service, great technical support.



- C35FR
by:

Product seems to work great for my 2016 MB sprinter 3500. And e-trailer’s customer service is top notch, as usual.



- C35FR
by:

Great service and prompt delivery! The 7 pin trailer light connector works great and allows me to connect easily to my older wire harness.



- C35FR
by:

Great products and excellent customer s ervice.



- C35FR
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Works great. Solves the problem of LED lights triggering faults on our BMW X5. The lights work and the car electronics don't signal any faults and switch the rear parking sensors off as designed.



- C35FR
by:

Great! Just in time to pick up my new Jet ski... thank you!



- C35FR
by:

Both ends fit but haven't connected the trailer to test the lights.



- C35FR
by:

Works perfect, no more warning lights on my dashboard.



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Ask the Experts about this Curt Wiring

  • 7-Way to 4-Way Adapter that Can Fit 2021 Volvo V60
    Yes the 7-Way to 4-Way adapter # C35FR would fit the 7-way of your 2021 Volvo V60 and would be a great and easy way to convert to a 4-way like you are wanting.
    view full answer...
  • Recommended Trailer Adapter For Vehicles With Lamp Out Sensors For 2008 Infiniti FX35
    It sounds like you are looking for a trailer adapter for a vehicle with lamp out sensors for your 2008 Infiniti FX35. If that is the case I recommend the 7-Way to 4-Way/5-Way Trailer Adapter for Vehicles with Lamp-Out Sensors # C35FR if your trailer has a 4-way or 5-way connector, or the Trailer Connector Adapter w/ Lamp-Out Sensor Bypass # 20142 if your trailer has a 7-way connector. These sensors are commonly needed on German vehicles with lamp out sensors, or newer domestic vehicles...
    view full answer...
  • Pulling a Trailer With LED Lights and the Vehicle is Reading Lamps Out
    Though we do recommend having a resistor on each LED light, we do have other options as well. Since you mentioned having a 7 Way connector, you could use a lamp out sensor adapter like the # 20142 if the trailer is wired with a 7 Way plug or a # C35FR if you have a 4 Flat or 5 Flat plug on the trailer. These have all the needed pieces to trick the vehicle's computers into working with LED lights on the trailer. That being said, you could spice resistors into each of the wires attached...
    view full answer...
  • Troubleshooting 2000 Toyota Tundra AC 4.7 V8 4WD With Electric Braking Issue
    For your issue, I recommend just using the Brake and Tail Light Trailer Hitch Receiver Cover for 2" Trailer Hitches # CR-007A when not towing a trailer. It sounds like you just need an incandescent bulb to draw power, so I recommend using this cover which has the bulb. If you pull a trailer with LED lights in the future, the adapter # C35FR and # 20142 have the resistors integrated so there is not need to adapt wiring. The draw on your brake controller shows there may be corrosion...
    view full answer...
  • Options to Replace Atwood 82543 Hydraulic Brake Actuator
    The Demco Hydraulic Brake Actuator part # DM72VR is for drum brakes which is what you need to replace an Atwood 82543. The other options you're inquiring about are for disc brakes which won't work. In short, there are tons of different versions of the Demco Hydraulic Brake Actuator each with different features such as drum/disc brake compatibility, weight capacity, ball size, lockout type etc. The correct one for the Atwood 82543 is listed above. In order to reverse without the brakes...
    view full answer...
  • Adapter Needed To Tow A Trailer With LED Tail Lights With a 2011 Mercedes-Benz ML550
    To make the LED trailer tail lights work with the factory trailer wiring on your 2011 Mercedes ML550 you will need a Trailer Connector Adapter w/ Lamp-Out Sensor Bypass # 20142. This will plug into your 7-way on your ML550 and allow the trailer to plug into it. The adapter tricks the computer in your Mercedes to believe that the trailer does have normal incandescent bulbs so that you do not get the bulb out error on your dash. If you are hauling a smaller trailer the 7-Way to 4-Way/5-Way...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Kristina F
Written by:
Kristina F
Employee Noah M
Updated by:
Noah M

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