Can a Passenger Side Tail Light Be Used on the Driver Side of a Trailer

Updated 05/28/2025 | Published 10/05/2011

Products Featured in This Question

Combination LED Trailer Tail Light - Submersible - 6 Function - 11 Diodes - Passenger Side

(1285)

$20.84

Combination LED Trailer Tail Light - Submersible - 7 Function - 14 Diodes - Driver Side

(1285)

$23.59

Question:

Why cant I use the right hand led trailer light with side marker for the left side? Just turn it upside down and the side marker would be on the proper side.

asked by: Bob W

Expert Reply:

Left side tail lights have a clear lens on the bottom to light up the license plate. Right hand side tail lights do not. If you were to use the right hand side light, # STL8RB, you would need a separate light to illuminate the license plate.

The left hand side light that matches is # STL9RB. If you click on the last picture on the product page, you will see the lens.

expert reply by: Michael H

Ben

5/27/2025

I have a driver side trailer tail light on passenger side, I have signal light and brake light. When I turn on running lights I have nothing on the passenger side. Any advice?

Jon G.

5/28/2025

@Ben Yes, start by checking the power wiring on that side of your trailer and check for any places where the wiring is damaged - replace accordingly. Also check the ground for the lights on that side of the trailer that aren't working. Make sure they are securely connected to a clean, bare-metal surface. If that doesn't fix your problem, please feel free to reach back out and I can continue helping you troubleshoot!