Can a 5-Way Adapter Work with a Trailer 4-Way Connector

Updated 01/12/2026 | Published 09/04/2024

Question:

I have a trailer with a 4 way but my adapter is a 5 way. Will this work?

asked by: Max

Expert Reply:

Hey Max!

Yes, you can still use an adapter like the Tow Ready # 20036 with a trailer that only has a 4-Way connector. You'll just line it up so the ground pin is in the same spot (the one that looks different) and that last pin won't be used.

The 5th pin in a 5-Way connector is used for the reverse function and is typically only used for trailers that have a brake actuator with an electric lockout. There are some other exceptions like if someone wanted to add reverse lights to their trailer, but that's not nearly as common as the actuator setup.

expert reply by: Jon G

Jesse M.

1/12/2026

Hey Max, how did things go using the Tow Ready 4-to-5-way adapter with your trailer? Did everything line up and work as expected? Your update could make it easier for the next person with the same wiring setup.