Recommended Trailer Brake Controller and Adapter for a 2021 Mini Cooper
Updated 10/27/2025 | Published 02/28/2025
Products Featured in This Question
Question:
I have a 1947 tear camper with a dry weight of 600lbs. I tow behind my 2021 mini cooper with a tow rating of 1600. My cars brake pads wore way too fast so Im considering trailer brakes. I only have a 4 flat electrical connection. Is there a simple solution to solve my problem? What do you recommend? Thanks...
asked by: Cairn
Expert Reply:
Hey Cairn there actually is a simple solution. All you'll need, since you have a 4-pin already, is the Universal Installation Kit for Trailer Brake Controller # ETBC7.
This adapter plugs into your existing 4-pin and easily allows you to add a trailer brake controller like the Tekonsha Prodigy P3 Trailer Brake Controller # 90195. From here, you'll have full trailer brakes.
Let me know if there is anything else I can do for you!
Product Page this Question was Asked From
Hydrastar Disc Brake Kit w/ Actuator for Single Axle Trailers - 13" Rotor - 8 on 6-1/2 - 7K
- Trailer Brakes
- Disc Brakes
- Marine Grade
- 8 on 6-1/2 Inch
- Rotor
- 1/2 Inch Studs
- 7000 lbs Axle
- 16 Inch Wheel
- 16-1/2 Inch Wheel
- Hydrastar
more information >
Continue Researching
- Q&A: Which Caliper Should Be Used With The Dexter 9-3/4" Hub-and-Rotor Assembly DX82UR?
- Q&A: Solution for Lost Breakaway Pin for Trailer Breakaway System
- Q&A: Troubleshooting HydraStar Electric Over Hydraulic Actuator Running But Not Pressurizing
- Q&A: Troubleshooting Titan BrakeRite Electric Over Hydraulic Trailer Brake Actuator-Won't Build Pressure
- Q&A: Solution for Replacement for Discontinued Carrier AC Unit 68RV14102A
- Q&A: What is the Difference Between The 2-1/2 Inch Pintle and a 3 Inch Pintle
- Q&A: Replacement Hub for EZ Loader Trailer with Knott Axle
Lazer S.
10/27/2025
Hey Cairn, how did things go after adding the ETBC7 kit and the Prodigy P3 brake controller to your Mini Cooper setup? Your results could really help others towing small campers with similar wiring.