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.

05/29/2026

New project dropped from ! We just did 3 Broncos with custom wraps for Don Larson Ford! If you need your vehicle, trailer, truck or just about anything else wrapped I39 Graphics we've got you covered!

Call 608-742-6223 or visit https://i39supply.com/i39-graphics to set up your wrap!

We have equipment trailers for every payload! 7k, 10k and 14 all on lot ready to roll!We've had guys holding the prices ...
05/28/2026

We have equipment trailers for every payload! 7k, 10k and 14 all on lot ready to roll!

We've had guys holding the prices up out in the sun now for 4 hours and their arms are getting tired so come save your favorite sales guy by buying their trailer.

Call us at 608-742-6223 or see all our available inventory here: https://i39supply.com/all-inventory

New livestock trailers just hit the lot! 7'x16' Frontier Low Pro 6 pen trailer- $30,590-Werm Floor-Hinged air gaps-Insul...
05/27/2026

New livestock trailers just hit the lot!

7'x16' Frontier Low Pro 6 pen trailer- $30,590
-Werm Floor
-Hinged air gaps
-Insulated ceiling
-Black aluminum wheels
-Rear ramp
-All 6 pens 50/50 60/40 adjustable
-Load lights

Happy Memorial Day From all of us at I39 Supply!Today we remember and honor all those that sacrificed for our freedoms. ...
05/25/2026

Happy Memorial Day From all of us at I39 Supply!

Today we remember and honor all those that sacrificed for our freedoms.

As a reminder we are closed today in recognition of the holiday.

Reminder we are closed today and Monday for Memorial Day. We will see you all Tuesday bright and early!
05/23/2026

Reminder we are closed today and Monday for Memorial Day. We will see you all Tuesday bright and early!

05/22/2026

We do upgrades! If you want to build out your trailer we can make that happen right here at I39 Supply! Our service guys can help you take your trailer to the next level with all these upgrades and more!

Give us a call at 608-742-6223 or visit https://i39supply.com/ to get your trailer!

Chris is doing the good work over in graphics with these banners!! Make sure you go support these business while everyth...
05/22/2026

Chris is doing the good work over in graphics with these banners!! Make sure you go support these business while everything is under construction!

05/21/2026

Check out this awesome comic themed trailer wrap done by for the Poynette Police Department! Thank you to all our first responders for serving our communities everyday! If your department need a car, trailer or just about anything else wrapped I39 Graphics is ready for you!

Additionally at I39 we offer a first responder discount on all new trailers. If you or your department need a trailer give us a shout at 608-742-6223 or visit https://i39supply.com/ to see what's on the lot!

Big thank you to Lodi Wrestling and Lodi Golf Club for having us out for the event this past weekend! Thanks to all the ...
05/20/2026

Big thank you to Lodi Wrestling and Lodi Golf Club for having us out for the event this past weekend! Thanks to all the golfers for playing our games and saying hi!

Come visit us at the dealership and see what we have on the lot, visit https://i39supply.com/ or call 608-742-6223 to learn more!

Should we make the sales guys do max bench?
05/19/2026

Should we make the sales guys do max bench?

The Blue Devils Strength & Conditioning program would like to thank I39 SUPPLY for donating the new record board for the high school weight room.🏋️💪

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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