7-Way and 4-Way Trailer Wiring Harness for 2021 Ford Bronco with Halogen Headlights
Updated 10/30/2025 | Published 02/14/2025
Question:
Is there a 4/7 pin tow wiring kit for Bronco trims with Halogen taillights?
asked by: Kel
0
Expert Reply:
Hey Kel, best solution to have both a 7-way and a 4-way on your 2021 Ford Bronco with non-LED lights would be to start with the 4-way part # TK33VR and then use the 7-way adapter part # 37185 which has a 4-way connector on it as well. There isn't a 7-way kit for your vehicle configuration due to the lights you have. Does your trailer have brakes?
expert reply by:
Jameson C
0
Continue Researching
- Shop: Trailer Wiring
- Search Results: trailer wiring
- Shop: Trailer Hitch
- Search Results: fuse holder
- Search Results: wiring harness
- Search Results: trailer hitch
- Search Results: dt37gr
- Search Results: 37185
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: Blue Ox Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Video: Installing the Universal Installation Kit for Trailer Brake Controller in a 2024 Ford Bronco
- Shop: Brake Controller
- Search Results: 7 pin universal wiring kit
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Availability of Trailer Hitch for 2025 Ford Bronco
- Q&A: Parts Needed To Add a Factory Style 4/7-Way Connector On a 2022 Ford Bronco With LED Tail Lights
- Q&A: Redarc Brake Controller For 2022 Ford Bronco Badlands Without Factory Towing Package
- Q&A: Trailer Wiring Harness Recommendation for 2022 Ford Bronco without LED Taillights
- Q&A: Parts Needed To Install 7-Way and Tekonsha Trailer Brake Controller On a 2022 Ford Bronco
- Video: Installing the Blue Ox Trailer Hitch Receiver on a 2024 Ford Bronco
- Q&A: Recommended Hitch Extension to Clear a Spare Tire on a Ford Bronco
- Shop: 7-Way RV Upgrade Kit for Trailer Brake Controller Installation - 12 Gauge Wires
- Q&A: 7-Way Connector and Brake Controller For a 2021 Ford Bronco Wildtrak Without Tow Package
- Video: Installation Guide for the Curt T-Connector Vehicle Wiring Harness - 2023 Ford Bronco
- Video: Best 2022 Ford Bronco Trailer Wiring
- Video: All About the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector-C42WR
- Shop: etrailer Anti-Rattle Hitch Collar for 2" Hitch Receivers
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: etrailer Hitch Pin Alignment Collar for Hitch Accessories - 2" Hitches
Explore Expert Info
![Our Expert]()
on Custom Fit Vehicle Wiring
on Custom Fit Vehicle Wiring
Jameson C.
10/30/2025
Hey Kel, did the combo of the 4-way harness and 7-way adapter work out on your Bronco with halogen lights? Your results could really help others trying to wire a similar setup.