Cooper Discoverer AT3 4S
The Cooper Discoverer AT3 4S is available in 25 sizes at ExtraBrake. Sizes span 15–22-inch wheels. Prices range from $93.74 to $271.49 per tire ($374.96–$1085.96 per set of four). It is offered as a all-weather tire. Every size carries the 3PMSF severe-snow rating.
25 tires found
Frequently asked questions
How much does the Cooper Discoverer AT3 4S cost?
At ExtraBrake, Cooper Discoverer AT3 4S tires run from $93.74 to $271.49 per tire depending on size — $374.96 to $1085.96 for a set of four.
What sizes does the Cooper Discoverer AT3 4S come in?
We stock 25 sizes, fitting 15-inch through 22-inch wheels. Match the size printed on your driver's door-jamb placard.
Is the Cooper Discoverer AT3 4S rated for snow?
Yes — every size we stock carries the three-peak mountain snowflake (3PMSF) symbol, meaning they passed a standardised severe-snow traction test.
What warranty does the Cooper Discoverer AT3 4S carry?
Sizes in this line carry a treadwear warranty of up to 65,000 miles. The exact figure varies by size and is listed on each product page.
What speed ratings are available for the Cooper Discoverer AT3 4S?
This line is offered in speed ratings T, H (T = 118 mph; H = 130 mph). Do not fit a tire rated below your vehicle's requirement.