Looking for Universal Brake Switch that Can be Used for Brake Controller Install

Updated 06/09/2026 | Published 06/08/2026

Question:

Hello, I need a brake switch and bracket to connect my trailer brake controller on a 2016 Sprinter 2500. Can you tell me what part number i need? Thanks, Jay

asked by: Jay R

Expert Reply:

Hey Jay, if you are looking for a stoplight circuit to use when wiring up your brake controller the Roadmaster part # RM-751000 would be what you would need for that. To pick out the correct brake controller bracket though I would need to know what brake controller you have currently.

expert reply by: Jameson C

Jay R.

6/9/2026

Hi Jameson, Thank you for the reply. I spoke to someone on the phone there and they told me I needed the RM-751452. I have the tekonsha prodigy p3 trailer brake controller. Please advise. Thnaks Jay

Jameson C.

6/9/2026

@JayR the switch you ordered is custom fit for Wranglers and wouldn't work without unknown modification on your Sprinter. You would want the universal design one I mentioned above. As far as the replacement bracket for the P3 that's not something we can help with as the company that makes the P3 is no longer around so we can't get their replacement parts anymore.