7-Way to 4-Way Adapter with LED Resistor Solution
Updated 10/30/2025 | Published 02/10/2025
Question:
have a 2025 ram 1500 plug in trailer led sends codes check wiring is there 4pin with restiors
asked by: Ivey R
0
Expert Reply:
Hey Ivey, it sounds like you are looking for the Curt part # C35FR. This plugs into a 7-way which you should have at the rear of your 2025 Ram 1500 to give you a 4-way that has the resistors built in to allow the bulb out sensor issue to go away. You have a 7-way currently correct?
expert reply by:
Jameson C
0
Product Page this Question was Asked From
7-Way to 4-Way/5-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs
- Custom Fit Vehicle Wiring
- Wiring Adapters
- Universal Fit
- 7 Blade to 4 Flat
- 7 Blade to 5 Flat
- Plug Only
- CURT
more information >
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Jameson C.
10/30/2025
Hey Ivey, did the Curt adapter with the built-in resistors clear the bulb-out codes on your Ram 1500? Knowing how it worked could help others dealing with the same LED trailer issue.