I39 Supply - New & Pre-Owned Trailer and Equipment Sales, Financing, Parts, and Service in Portage, WI

View Our Inventory

Inventory changes daily. Please contact us for updates!

Parts & Service

We can take care of everything you need for your current trailer from routine maintenance to custom build outs!

Parts & Service1
Parts & Service
Parts & Service
Parts & Service
Graphics
Graphics
Graphics
Graphics

I39 Graphics

Full service graphics department offering trailer and vehicle wraps, signs, apparel and more.

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EXCELLENT

Based on 553 reviews

Eileen Urso
Eileen Urso

"We’ve just purchased another trailer from I39 Trailers in Portage. From sales, purchase and pick up the process was smooth as silk. We’ve also used their graphic department! Andrew is the best! Highly recommend checking them out if you are in the market for a trailer or graphics. We will certainly be back when we “need” another trailer. Grazie Andrew!"
Mark Wrobel
Mark Wrobel

"I couldn’t have been more pleased with my purchasing experience at I39 Supply. Andrew in sales is outstanding. He’s extremely knowledgeable and very professional and courteous. From the very first phone call I felt confident in the experience. Andrew answered all my questions and I placed an order with him on that first call. I’m very particular, and wanted my trailer my way. I ended up changing my order almost 2 weeks in as I considered possible future needs. Andrew was very supportive and informed me that the specific trailer that I wanted would need to be manufactured and increase the lead time. Then 2 weeks later I called again inquiring about getting larger tires and spares. Andrew was very patient with me and I picked up my trailer this last Saturday. Andrew helped me hook up and gave me a tutorial on all the features. It was a very pleasant experience from beginning to end. Andrew and John always enthusiastically answered my phone calls, and answered my incessant questions. Much better than 5 stars!!!"
Jeffery Smedema
Jeffery Smedema

"Saw their advertisement on FB and decided to come check them out. Extremely knowledgeable and super friendly sales staff and employees. Highly recommend coming and checking them out if your in need of a trailer. They have everything to haul whatever your heart desires."
Alicia Schrank
Alicia Schrank

"We are incredibly grateful to have won this enclosed trailer. The generosity shown to my son and me truly meant the world to us. The trailer is excellent quality, and the people behind this company are even better. Honest, kind, and truly caring. Highly recommend! Ali Schrank and son Dalton"
John Heath
John Heath

"We purchased a trailer from I-39 thru Alex and the entire purchase process was great. He went out of his way to make sure we were happy with what we were getting. I appreciated their level of detail with the paperwork and the licensing requirements. After sales support has also been great. They have been responsive and are willing to work with you."

Financing Available!

At I39 Supply Trailer Dealership we've partnered with both Sheffield Financial Services and FLCC Financing to make purchasing a new trailer easier for more customers. You can apply online right now!

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Get a Great Trailer for a Great Price

Our convenient Wisconsin location is an easy on/off Interstate 39. Take Exit 85 and continue to Johnson Road. We're just 5 miles south of Portage, WI and we stock over 200 trailers at all times. We can special order trailers with a quick turnaround time and low cost. Our helpful team focuses on quality products, fair prices, and a great customer experience – so call us today!

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