Will 7 Way To 4 Way Flat Adapter Work In 2026 Sprinter 3500?

Updated 10/19/2026 | Published 10/15/2026

Question:

Will this adapter fit a 2026 sprinter 3500?

asked by: Doug R

Expert Reply:

Hey Doug!

Yes, as long as your Sprinter already has the 7 way plug on the back, then this Pollak Trailer Wiring Adapter - 7-Way RV to 4-Way Flat # PK66AV will fit right into it and adapt it to a 4 way. Then you can just unplug it when you need to tow a different trailer that has a 7 way.

The 7 way outlets on the back of vehicles are industry standard, so it doesn't matter if you have factory tow package 7 way or an aftermarket one.

What are you trying to tow with it?

expert reply by: Andrew N