Cooper Tire Cooper Discoverer AT3 4S 255/70R18 113T AT A/T All Terrain

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Cooper Discoverer AT3 4S

The Cooper Discoverer AT3 4S is an all terrain all season tire manufactured for crossover vehicles and SUVs. Cooper offers a 65,000 mile treadwear warranty. The five-rib tread design and silica compound boost the all weather traction, and allow the tire to perform well on all loose, soft and uneven surfaces. The unique grooves prevent hydroplaning by dispersing water and slush, while the staggered tread blocks eliminate snow and mud and eject rocks stuck between the tread elements. The Discoverer AT3 4S features a reinforced internal structure that prevents deformation and enhances the model's controllability.


  • All Season Tire – The tread design with the sawtooth snow groove edges and the silica compound enhance the dry, wet and winter weather traction.
  • Hydroplaning – The Aqua Vac Channel and the unique center grooves increase the hydroplaning resistance by dispersing water and slush.
  • All Terrain Tire – The five-rib tread design with the alternating tread blocks upgrade the soft, loose and uneven terrain traction and performance.
  • Self-cleaning Tread – The zigzag sipes and the staggered tread blocks maintain a clean footprint and excellent off-road all weather traction.
  • Durability – The reinforced internal structure prevents deformation under the driving pressure both on and off-road and ensures a safer drive.
  • Handling – The steering and driving stability are ensured with the polyester casing plies and twin steel belts that maintain road contact.

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Item# : SPM18097154004
Model # : 171043002
  • Product Overview:

    • Item Weight :
      42.0000 (lbs.)

  • Sizing:

    • Tire Size:

  • Design:

    • Sidewall Treatment:

    • Stud Capability:

  • Speed Ratings:

    • Speed Rating:

  • UTQG Ratings:

    • Temperature Grade:

  • Size:

    • Aspect Ratio:

    • Rim Diameter:

    • Section Width:

  • Specifications:

    • Load Index:

    • Maximum Cold Pressure :
      44 (psi)

    • Maximum Load in lbs.:

    • Overall Diameter :
      32.1 (in.)

    • Traction Grade:

    • Tread Depth in inches:

    • Treadlife:
      65,000 miles

    • Treadwear Grade:

    • Tire Performance Grade:
      Extreme Performance

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