Can I Use the Connectors at the Same Time on the Multi-Tow 7-Way and 4-Way Trailer Connector 30955?
Updated 09/26/2025 | Published 04/21/2025
Products Featured in This Question
Question:
Replacement Custom Multi-Tow 7-Way and 4-Way Trailer Connectors Part Number: 30955 Is there any reason I cant use both the 4 way and 7 way plugs at the same time? I tow a 2018 Silverado 1500 behind a 2018 Tiffin Allegro Bus. The way the wiring on the truck is set up it kills the 4 way on the back of the truck. When I have covered bikes on the back of the truck the tail lights are not readily visible. If I can use both plugs, I will run a harness from the 4 way to light on the bike rack.
asked by: Brian R
Expert Reply:
No, there is not! You can definitely use both connectors at the same time with the Replacement Custom Multi-Tow 7-Way and 4-Way Trailer Connectors item # 30955.
The longest 4-way extension we have is the 120" long Hopkins 4-Pole Flat Wiring Extension item # HM48235 so you'd two. Or you can make your own using the Quick Fix (TM) 4 Pole Flat Car and Trailer Ends item # 48195 and the 35 Ft 4-Way Trailer Wiring Harness item # A35W42B.
If you have any additional questions feel free to throw them into the comment box below and I'll be happy to answer them.
(click to enlarge)
Continue Researching
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Does etrailer Have Local Installers?
- Article: Trailer Wiring Diagrams
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: How to Choose the Right Trailer Hitch Class
- Article: Brake Controller Installation: Starting from Scratch
- Article: Installing an Electric Brake Controller on 2007-2013 GM Full-Size Truck or 2007-Present GM SUV
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: 5 Tips to Confidently Choose Your Weight Distribution Hitch
- Q&A: Trailer Hitch And 7 Way Wiring For 2002 Chevrolet Silverado 1500
- Q&A: 1999 Ford F-250 No Trailer Running Lights Even After Replacing 7-Way Connector
- Q&A: Replacing a 2015 Toyota Tacoma 7-Way Receptacle with a 4-Way/7-Way Receptacle
- Q&A: Troubleshooting No Power At The Factory Trailer Plug
- Q&A: How To Add a 7-Way Trailer Connector to a 2022 Nissan Pathfinder
Jerred H.
9/26/2025
Hey, did you have a chance to set up the wiring for your bike rack using both connectors? I’d love to hear how it worked out, as it could help others looking to improve their trailer lighting setup.