When the road turns rough and the job demands reliability, your tires must rise to the challenge. The Cooper® Discoverer™ Stronghold AT isn’t just a tire—a set of these will help your truck handle whatever you throw at it, from rocky trails to heavy hauls.
The Stronghold AT tire is designed for long-lasting on-road miles and tough durability in rough and remote areas. Its arsenal of features all serve to support the versatile capabilities of this tire. Imagine you’re towing a trailer through a muddy construction site. The Stronghold’s thick sidewalls and aggressive tread pattern aren’t just for style—they help get the job done and help prevent getting stuck. The 3D-Sipe Technology doesn’t just stabilize your ride—it helps provide consistent control both on and off-road.
The sidewall hook pattern helps bite the ground even when you’re driving through deep ruts and provides extra rubber thickness to help guard against scuffing to the side of the tire from things like sticks and rocks on the trail.
Textured edges on the Stronghold’s shoulders help it grab snow while its specialized rubber compound and wide lateral grooves help evacuate water. These tires have a Severe Snow Designation, meaning they meet a snow traction standard set by Federal Motor Vehicle Safety Standards.
The E-Load Range classification represents the maximum weight capacity of a tire, which means this tire is up for bearing the weight of not just your heavy-duty truck, but also whatever it’s hauling or towing as long as the tire has enough inflation pressure to carry the load. For more information on this topic, please see Cooper’s tire maintenance guide.
In Cooper’s benchmark testing on a 2020 Chevrolet Silverado 2500, the Cooper Discoverer Stronghold AT outperformed the Toyo Open Country A/T III in dirt handling when in 4-wheel drive, in handling on wet roads, and when stopping on snow-covered roads.*
*Based on internal testing comparing Cooper Discoverer Stronghold AT (LT275/65R18) to Toyo Open Country A/T III (LT275/65R18) on a 2020 Chevrolet Silverado 2500 HD. Actual results may vary.
Another critical factor for all-terrain tires is longevity. The 60,000-mile warranty on Cooper’s Stronghold AT tires provides peace of mind that they’ll keep you rolling. And when you first get them mounted, there’s a 45-day test-drive satisfaction guarantee. That satisfaction pledge gives you 45 days to decide whether to keep your selected Cooper tires or exchange them for a different set of tires, per conditions.
When you’re setting up a vehicle for heavy work in rough conditions, picking tires is almost more important than the truck itself. In 2024, many modern trucks can pull huge amounts of weight and have incredibly high payload capacities. But those specs won’t mean much if you’re spinning in mud or stuck with a flat tire on a rough road.
“Work trucks live rough lives, they’re driven hard. So I understand the temptation to just slap the cheapest tire you can on and send it. But that is definitely not the move,” says The Drive editor Andrew Collins, who has a revolving fleet of 4x4s in use towing race cars and working around his property, as well as thousands of miles of vehicle testing under his belt. “A work truck tire has to carry a lot of weight, survive and move over ugly surfaces, and, for a lot of folks, do so through all four seasons. That’s why a design like the Stronghold’s is appealing—it’s got the tread and sidewall you’re going to want for traction in rough or slippery conditions, and the load rating you need for moving supplies or equipment around.”
The Stronghold AT is perfect for a wide range of pickups and SUVs, including the Ram 2500/3500, GMC Sierra 2500/3500 HD, Chevy Silverado 2500/3500 HD, Ram ProMaster 3500, Ford F-250/350 Super Duty, and the Jeep Gladiator Rubicon. It’s available now in 28 sizes, fitting wheels from 16 to 20 inches.
Learn more about the Cooper Discoverer Stronghold AT and where to get a set installed at coopertire.com, www.coopertire.ca up north, or ask about them at your local Cooper authorized dealer.