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.

07/16/2026

Can Canada send their whiskey and not their wildfire smoke?

We just about lost Alex on the lot today through all the smoke.

07/16/2026

Livestock trailer with custom graphics done by I39 Graphics with the custom gate color match to the wrap!

This trailer features werm flooring and powder coated gates. All of these custom additions were done in house here at I39 Supply!

See all the livestock trailers we have available here: https://i39supply.com/all-inventory/livestock
Get your vehicle or trailer wrapped here: https://i39supply.com/i39-graphics

JUST DROPPED IN THE BARGAIN BIN!8.5x24 Darkhorse Enclosed : $13,190•84" Interior height•80.5" Door Height•Torsion 5200lb...
07/15/2026

JUST DROPPED IN THE BARGAIN BIN!

8.5x24 Darkhorse Enclosed : $13,190

•84" Interior height
•80.5" Door Height
•Torsion 5200lb Axles
•Rear Spoiler with light package
•16" on center framing on the walls, ceiling and floor
•extended tongue with setback HD square jack

USED 2023 Diamond C 102"x35' FMax 212 Max Ramps Gooseneck Trailer: $20,900•25,900lb GVWR•17,700lb PayloadIf you are look...
07/15/2026

USED 2023 Diamond C 102"x35' FMax 212 Max Ramps Gooseneck Trailer: $20,900

•25,900lb GVWR
•17,700lb Payload

If you are looking to get into a great Gooseneck from Diamond C without breaking the bank look no further! This one hit the lot a couple weeks ago and we wanted to give it the spotlight it deserves!

See the details here: https://i39supply.com/inventory-detail/102x35-diamond-c-gooseneck-used-270755-101113

07/14/2026

I39 Graphics with the partial wrap for Grass Gorilla Lawn Care! If you want more visibility for your business contact us today!

Call us at 608-742-6223 or visit https://i39supply.com/i39-graphics

07/13/2026

We have a few different aluminum hydraulic tilt speedloaders on lot ready for you!

This specific trailer features the winch mount, tandem aluminum wheels, and the toolbox on the front! If you need to haul a car or equipment these can be a great option for you!

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

Our giveaway winner from last week is Andrew T! Thank you to everybody that participated and stay tuned for more giveawa...
07/13/2026

Our giveaway winner from last week is Andrew T! Thank you to everybody that participated and stay tuned for more giveaways in the future!

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

Some of the customer pick ups from this week! Did someone hear something about the weather report regarding snow that we...
07/10/2026

Some of the customer pick ups from this week! Did someone hear something about the weather report regarding snow that we didn't cause we had 2 Mission Snowmobile trailers leave the lot this week!

To see everything we have available visit our website here: https://i39supply.com/all-inventory

Yesterday Alex headed out to golf A Round With Agrace and said he shot -10 on the day. No score card in sight this morni...
07/10/2026

Yesterday Alex headed out to golf A Round With Agrace and said he shot -10 on the day. No score card in sight this morning so it's scouts honor but a great event with a great group!

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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