Replacement 7-Way and Trailer Light Wiring for a 32' Gooseneck Trailer

Updated 10/22/2025 | Published 04/09/2025

Products Featured in This Question

Trailer Wiring 7-Way Upgrade Kit

(35)

$89.41

35 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 42" Ground

(847)

$23.03

Question:

Hello, I have a 32 gooseneck trailer i would like to get a new wiring harness for. Something 7 pin and long enough for brake lights. Do any come with extra wires for side markers and clearance lights? Thanks

asked by: Jacob C

Expert Reply:

Hey Jacob, thanks for reaching out!

To rewire your gooseneck trailer I recommend using the Trailer Wiring 7-Way Upgrade Kit # ET7WK for the 7-Way, and then using the 35 Ft 4-Way Trailer Wiring Harness # A35W42B to run the wiring for your lights. You'll just need to cut off the 4-Way and you'll have 35' of wiring to mess with.

Let me know if there's anything else you're needing to upgrade or replace on your gooseneck and I'll be happy to help you find the parts!

expert reply by: Jon G

Jon G.

10/22/2025

Hey Jacob, how did the wiring go with the 7-way upgrade kit and the 35-foot harness on your gooseneck trailer? Your update could make it easier for the next person rewiring their setup.