Recommended 4-Way Wiring Harness for a 2021 BMW 530i

Updated 09/17/2026 | Published 09/15/2026

Products Featured in This Question

Curt Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit

(178)

$167.60

Curt Mounting Bracket for 4-Pole Flat Trailer Connector

(1307)

$6.58

Curt No-Drill Bracket for 4-, 5-, or 6-Way Trailer Connector Mounting Brackets - Short

(27)

$25.29

Question:

Im looking at kit number c59496 for a 2021 BMW 530i. I was wondering how long this take to install and if I have enough skills to install it my self thank you

asked by: Keith C

Expert Reply:

Hey Keith. The Curt Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit item # C59496 will take you a couple of hours to get installed on your 2021 BMW 530i. The most time consuming part is going to be finding the wire functions of your tail lights so you can splice into them. This kit includes a circuit tester to help you locate them.

The Curt Powered Tail Light Converter item # C59496 has been confirmed to work with the electrical systems in the 2021 BMW 530i so you won't have to worry about it messing up your computer. This kit will had a 4-way connector capable of powering your trailer or an accessories lighting functions.

I linked an installation video below so you can see how to get this 4-way connector installed.

I recommended purchasing the Mounting Bracket for 4-Pole Flat Trailer Connector item # C42CR and item # C83DR. These will allow you to attach the 4-way connector in a safe convenient place directly to your hitch's crosstube without having to drill.

What are you going to be using the 4-way connector for? Are you going to be pulling a trailer? Feel free to answer this and throw in any other questions you have, where it says Add Comment.