Looking For Good Quality 7-Way Trailer Side Pigtail

Updated 10/28/2025 | Published 10/21/2025

Question:

Im looking for a GOOD 7 pin pigtail trailer side. I use my trailers a lot, and have to replace these almost every year. It seems the terminals get weak in the cord end and I keep getting random trailer disconnected warnings on the dash, yet everything functions correctly. Replacing the cord always fixes it for a couple of months.

asked by: Mike Z

Expert Reply:

Hey Mike, thanks for reaching out. In my experience the most durable 7-way plugs are the "double prong" style like our part # e99011. They tend to make better contact and the plug typically stays more securely inserted compared to other "single prong" designs. This also comes with a junction box which I definitely recommend adding if you don't already have one. It will help keep your connections out of the elements, and will make replacing the 7-way much easier in the future. Although hopefully you won't be doing that quite as much with a double prong plug.

If you keep some electric grease on the plug it will help to prevent corrosion. I have also heard of people cleaning the prongs with like a wire brush and that can help keep the connection solid if they get corroded.

What kind of trailers do you have? Are they mostly utility trailers?

expert reply by: Jesse M

e99011 Double Prong Plug
(click to enlarge)

Mike Z.

10/28/2025

They are all 24' flat bed, bumper pull, pintle hitch, trailers. I keep the plugs and sockets well-maintained. I may need a longer lead than 5'5" though. 8 feet perhaps.

Jesse M.

10/28/2025

@MikeZ So we do offer an 8' long double prong 7-way cord part # 54006-058 but it does not come with a junction box. You can order that separately # e99009.