I39 SUPPLY

I39 SUPPLY High Volume Trailer Dealership! With A Full Parts & Service Department. When we say, “we use what we sell”, we mean it. Cheers!
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Also Stocking Portable Buildings, Hunting Blinds, YETI Coolers, and Vortex Optics Gear… And Don’t Forget About Our All-In-One Vinyl Graphics Department! At I39 SUPPLY we pride ourselves on a diverse inventory of quality products, fair prices, and friendly staff. With more than 20 years combined knowledge of operating and hauling ATVs, snowmobiles, boats, and heavy equipment, we have a wide range o

f experience to share. Years of firsthand experience with trailers, skid steers, compact tractors, and their various components for work and recreation give us the ability to know what works, what lasts, and what you wouldn’t think twice about in the future. We welcome you to visit our operation so you can learn more about who we are and what we do. While you help yourself to a cold beverage or nachos, we’ll gladly share some of our experiences with you. I39 SUPPLY is your WEEKEND WARRIOR WAREHOUSE.

06/19/2026

Not sure if what you're buying the trailer for will fit? Come check first! Today we had a customer testing a 6x12 and 7x14 enclosed trailer to see what he liked better for hauling his motorcycle.

See all our available inventory here: https://i39supply.com/all-inventory

Special thank you to Justin for picking up a Custom Diamond C HXD trailer!We have 100's of trailers on lot but if we don...
06/16/2026

Special thank you to Justin for picking up a Custom Diamond C HXD trailer!

We have 100's of trailers on lot but if we don't have exactly what you are looking for we can get it for you with all the exact specs that you need!

Give us a call at 608-742-6223 or visit https://i39supply.com/all-inventory to see everything we have available!

We pride ourselves on taking care of customers in all the stages of trailer ownership not just selling a trailer and sen...
06/12/2026

We pride ourselves on taking care of customers in all the stages of trailer ownership not just selling a trailer and sending you on your way. Our service team is always ready to get you back on the road, just read this review from Tyler.

"Top notch people all the way around. We were headed north on a trip. We had already blown two tires and changed them on the side of I90. We pulled up, already behind schedule and obviously frustrated. Their team had 4 new tires ordered, picked up and on our trailer putting us back on the road in less than an hour. (We went into portage and hadn't even finished lunch yet when they called to tell us it was ready)."

If you need to schedule service for your trailer visit https://i39supply.com/trailer-repair or give us a call at 608-742-6223!

Thank you to the Lodi & Lake Wisconsin Chamber of Commerce for having us out to what turned into quite a memorable golf ...
06/11/2026

Thank you to the Lodi & Lake Wisconsin Chamber of Commerce for having us out to what turned into quite a memorable golf outing! We appreciate the support you give local businesses like us!

06/11/2026

Custom Graphics on a livestock trailer going off the lot! Shout out to on this set up, three different locations on the trailer, three different sizes and even went extra custom on the back ramp door making the logo neon!

If you need a truck or trailer wrapped, a sign made or just about any other graphics work done reach out at https://i39supply.com/i39-graphics or give us a call at 608-742-6223.

06/08/2026

Does size matter? Depends on the job. Whatever your job is we have the right size utility for you!

See all our live inventory here: https://i39supply.com/all-inventory or give us a call at 608-742-6223

Address

N6100 Johnson Road
Portage, WI
53901

Opening Hours

Monday 7:30am - 4:30pm
Tuesday 7:30am - 4:30pm
Wednesday 7:30am - 4:30pm
Thursday 7:30am - 4:30pm
Friday 7:30am - 4:30pm
Saturday 8am - 12pm

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