Cooper Discoverer A/T3 Tires

Product Info

Discoverer A/T3

Finding the right all-terrain replacement matters when your truck or SUV has to handle commuting, gravel roads, and changing weather. The Cooper Discoverer A/T3 tires are a legacy Cooper all-terrain option built for light trucks and SUVs, with available sizes here including 245/75-16, 265/70-17, 275/55-20, and 275/65-18.

For drivers shopping Gunnell's Tire & Service Center for a practical upgrade, this model balances everyday road manners with off-pavement grip for SUV and pickup use. You’ll find both passenger-oriented and LT fitments, including load range E options for heavier-duty work or towing and SL/XL sizes for more everyday comfort.

Key design details include an aggressive all-terrain tread pattern, all-season tread compound, structured sipes, and a five-rib tread design to support wet traction, even wear, stability, and long tread life. Select sizes on this page are also snow-rated and carry three-peak mountain snowflake capability, while certain LT sizes list up to a 60,000-mile warranty by size. Ready to compare fitments? Shop Tires, book a Schedule Appointment, or visit Gunnell's Tire & Service Center for a Tire Consultation.

Tire Sizes