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Cooper Discoverer A/T3 Tire (Available From 31 in. to 35 in. Diameters)

Item S501972
AmericanTrucks no longer carries the Cooper Discoverer A/T3 Tire (Available From 31 in. to 35 in. Diameters). Please check out GMC Sierra 1500 Tires for an updated selection.

Features & Details

  • All-Terrain Tire
  • Aggressive 5 Rib Design
  • Dual Draft Tread Element Walls
  • Broken Center Rib
  • High Silica Compound
  • Highway, City, and Off-Road Capable
  • Lateral Groove Protectors Reduce Stone Retention
  • Sold Individually
  • For Use on Front or Rear Wheels
Manufacturer Ratings
  • Symmetrical

    Symmetrical tires can be rotated in many different ways to prolong their life.

Customer Ratings
  • Dry Traction 5/5 5
  • Wet Traction 5/5 5
  • Snow Traction 5/5 5
  • Road Noise 5/5 5
  • Onroad Ride Quality 5/5 5
Tire Size Wheel Width Tire Diameter Tread Depth Revs Per Mile Weight (lbs)
Better for Trails. If you want a tire that's great on the highway, cruising through the city and out on trails, this Cooper Discoverer A/T3 Tire has got you covered. Thanks to an aggressive 5-rib all-terrain pattern and dual draft tread element walls, you'll get better traction and reduced stone retention and stone drilling in your GMC Sierra. A broken center rib improves soft surface traction without sacrificing handling, making A/T3 a perfect combination of comfort and performance.

Tough Rubber. The A/T3 Tire incorporates a silica based tread compound that improves cut and chip resistance on rocky or gravel terrain. Lateral groove protectors further reduce the chance of stone retention and stone drilling, protecting your treads.

Improved Wet Braking. Manufactured with high-silica compound, this Cooper Discoverer A/T3 Tire provides improved wet braking capabilities on the road or on the trails. The interlocking lateral groove tread is self-cleaning and establishes superior traction in the rain, snow, sand or mud.

Application. This Cooper Discoverer A/T3 Tire is designed for use on any 2007-2020 GMC Sierra model. Please select your proper tire sizing from the options above. Sold individually.

Fitment: Details

CA Residents: WARNING: Cancer and Reproductive Harm -

What's in the Box
  • (1) Tire
Installation Info
Tech Specs

    Customer Photos

      Questions & Answers (1)

      1 Top Rated Question

      Would this tire size 275/70R18 on a 18x9.5 rim fit into the factory spare hanger under the truck?

      • A 275/70R18 will be a tight fit for most F150 spare tire locations. depending on wheel offset and the year of your truck, this may fit or may experience clearance issues.

      Helpful (0)
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        Customer Reviews (2) Write a Review

        Overall Rating 5

        out of 5 stars

        Installation Time:Full Day

        Installation Cost:0-$100

        • Dry Traction 5 5
        • Wet Traction 5 5
        • Snow Traction 5 5
        • Road Noise 5 5
        • Onroad Ride Quality 5 5

        • 5/5

          Installation Time: Shop Install

          Installation Cost: 0-$100

          July 06, 2017

          If you want the best tire for the buck!!

          I have always trusted Cooper Tires... Never had a reason not to... I have these on my 14 Sierra All Terrain, and there isn't another tire made that can beat them... Their QUIET, even at 35000 miles, Wear is excellent for a heavy truck, and I rotate and balance them every oil change (5000) miles... I live in the desert, and have yet to have any complaints about their performance... They look great, and on my 20 inch aftermarket wheels, I went from 275 to 305's....


          Year: 2014 Engine: 5.3L V8

          Helpful (10)

        • 5/5

          Installation Time: Less than 1 Hour

          July 01, 2017

          Review from Cooper Discoverer A/T3 Tire (Available From 31 in. to 35 in. Diameters)


          All the best in one tire. Zero road noise and looks super on the Truck.


          Year: 2016 Submodel: LT Engine: 5.3L V8

          Helpful (9)