Cooper Discoverer AT3 XLT Tires

Product Info

Discoverer AT3 XLT

Cooper built this all-terrain option for drivers who need dependable road manners, towing confidence, and real off-pavement traction. The Cooper Discoverer AT3 XLT tires are a strong match for Rocky's Tire & Service shoppers driving pickups, truck-based SUVs, and lifted 4x4s that split time between highways, gravel, mud, and jobsite roads.

At Rocky's Tire & Service, this lineup is focused on LT fitments with load ranges C, E, and F, plus floatation sizes for older builds and lifted trucks. Popular options include 275/70-18, 285/75-16, 31x10.50-15, and 35x12.50-20. That makes it a smart choice for heavy-duty pickups, midsize pickups, SUV builds, and lifted trucks that need hauling strength with everyday drivability.

Shoppers also get a 60,000-mile warranty, plus Cooper features like Even Wear Arc™ Technology, Durable-Tread™ Technology, Whisper Grooves™, Snow Groove Technology, Rugged Traction Shoulders, and stone ejector ledges for gravel-road durability. Select sizes in Rocky's current inventory are snow-rated and carry the 3PMSF / severe-snow designation, giving some fitments extra winter traction. Ready to compare sizes or get help choosing the right load range? Start with Shop Tires, book a Schedule Appointment, or request a Tire Consultation.

Tire Sizes