






๐ Grip the road, conquer the wild โ Stronghold AT means business!
The Cooper Discoverer Stronghold AT is a rugged, all-terrain SUV and truck tire designed for professionals who demand durability and reliable traction year-round. Featuring a 60,000-mile treadwear warranty, advanced 3D-sipe technology, and certified snow traction, it excels in diverse conditions from dirt trails to snowy highways. With a heavy-duty 4,080 lb load capacity and a 45-day test drive, itโs engineered to keep your vehicle performing at its peak while resisting wear and tear.









| ASIN | B0D5KM5MR4 |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #37,973 in Automotive ( See Top 100 in Automotive ) #28 in Light Truck & SUV All-Terrain & Mud-Terrain Tires |
| Brand | Cooper |
| Brand Name | Cooper |
| Construction Type | Radial |
| Customer Reviews | 4.4 out of 5 stars 81 Reviews |
| Global Trade Identification Number | 00029142993100 |
| Included Components | Tire Only |
| Item Diameter | 34.8 inches |
| Item Dimensions | 34.84 x 11.26 x 34.84 inches |
| Item Highlight | Light Truck All Terrain All Weather Traction 129S Rated E (10 Ply) Radial Construction Black Sidewall Tire |
| Item Type Name | automotive-light-truck-and-suv-all-terrain-tires |
| Item Weight | 59 pounds |
| Load Capacity | 4080 pounds |
| Load Index | 129 |
| Load Range | E |
| Manufacturer | Cooper |
| Manufacturer Part Number | 170289048 |
| Manufacturer Warranty Description | 60000 Miles |
| Maximum Pressure | 80 psi |
| Model Number | 170289048 |
| Number of Packs | 1 |
| OEM Equivalent Part Number | COOP-170289048 |
| Ply | 2-Ply |
| Rim Size | 18 inches |
| Rim Width | 8 inches |
| Seasons | Year Round |
| Section Width | 28.5 centimeters |
| Size | 285/75R18 |
| Speed Rating | S |
| Tire Aspect Ratio | 75 |
| Tire Diameter | 34.84 |
| Tread Depth | 17 millimeters |
| Tread Type | Non-Directional |
| UPC | 029142993100 |
| Unit Count | 1 Count |
| Vehicle Tire ISO Metric Size Description | 285/75R18 |
D**E
Great
They get the job done
S**T
Great Tires and extremely fast shipping.
Excellent seller.
R**O
Great tires.
I love these tires. They look great on my truck, they are quiet going down the road and they are super stout. Have bought them a couple of times.
I**A
Do not recommend vibrate and loud!
Very disappointed with these. Bought a set for a 2022 F250 and a 2023 F250. Cooper is a great brand and MADE IN USA is a plus. Always try to buy domestic if it's possible. I have had phenomenal results with the Cooper At3 XLT tires very smooth and quiet. Ordered the Stronghold AT for a slightly different look and a bit more aggressive tread. These ride and sound like a BIAS Ply Mud Tire. They are horrible and vibrate my teeth at certain speeds. I have contacted Cooper hoping they will do the right thing and let me exchange these for AT3's.
L**A
Great!
New favorite tire after 6months
D**K
Very noisy at highway speeds above 60+
Completely changed the look of trucks shoes, handling & feel of steering. Absolutely ๐ฏ luv these tires. But.. Very noisy at highway speeds 60 on up!!! As most of daily drive is 90ยฐ highway, just can not give these tires above a 4.
S**E
Great snow and ice performance
Amazing traction on snow and ice, gives full confidence in poor conditions. Haven't been able to test them in the rain but I have full confidence they will perform great. Very low noise on dry pavement no more than a regular street tire. Primarily bought for winter and I'm very happy with there performance and have a 60,000 mile warranty.
R**E
Great Tires
I first bought a set of these tires for my 2017 Ram. They ride great and traction in rain and snow is excellent. Noise is very minimal on my Ram for the deep tread. So I just received a set for my 2023 Jeep. Canโt wait to get these installed and see the difference in handling and control.
Trustpilot
1 month ago
2 weeks ago