Cooper Discoverer AT3 XLT Tires

Product Info

Discoverer AT3 XLT

Built for towing, hauling, and rough backroads, the Cooper Discoverer AT3 XLT tires give Gunnell's Tire & Service Center shoppers a truck-focused all-terrain option with LT-only fitments and a 60,000-mile warranty. The Cooper Discoverer AT3 XLT tires are available in 11 sizes, including 275/70-18, 285/65-20, and 35x12.50-20, plus classic floatation fitments for lifted builds and older 4x4 setups.

This lineup is a strong match for heavy-duty pickups, lifted trucks, and off-road rigs that need dependable traction on pavement, gravel, mud, and rocky terrain. Select sizes are snow-rated and carry the 3PMSF severe-snow symbol, while load ranges C, E, and F help match lighter trail builds and heavier work-truck applications. Cooper’s Rugged Traction Shoulders, Whisper Grooves Technology, and Even Wear Arc Technology support off-road bite, quieter road manners, and more even wear.

If you’re comparing fitment for a Ford F-250 Super Duty, Chevrolet Silverado 2500HD, or Ram 2500, Gunnell's Tire & Service Center can help you choose the right size and load range. Start with Shop Tires or book a Schedule Appointment when you’re ready to get rolling.

Tire Sizes