The Cooper Discoverer AT3 LT All-Season LT245/75R17 121/118S Tire offers Durable-Tread Technology to take on the toughest jobs on any terrain. For all you put your truck through, Cooper Tire put our all into the Discoverer AT3 LT tires. With our Durable-Tread Technology that helps prevent shredding, our Discoverer AT3 LT tires have an improved ability to withstand damage that comes from the ongoing assault of dirt and gravel, as well as help you haul heavy loads with less wear. The Cooper Discoverer AT3 LT is made for medium to heavy work trucks to withstand the harshest gravel and dirt road conditions. Whether working on the farm or conquering off-road fun, this tire is built to handle heavy duty hauling.