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255 Width /
55 Ratio /
R 18 Diameter
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all-season

Discoverer® STT Pro™

Fits Trucks

  • Rock Climber Sidewall™ Technology helps conquer the toughest obstacles
  • Stone Armor™ Technology helps defend against sharp rocks and debris
  • Uniquely formulated rubber compound for outstanding performance in wet and dry off-road conditions.

all-season

Discoverer® STT Pro™

Fits Trucks

  • Rock Climber Sidewall™ Technology helps conquer the toughest obstacles
  • Stone Armor™ Technology helps defend against sharp rocks and debris
  • Uniquely formulated rubber compound for outstanding performance in wet and dry off-road conditions.
45-Day Satisfaction Guarantee
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45-Day Satisfaction Guarantee 45-Day Satisfaction Guarantee
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Tires to dominate off road.

Attention off-road warriors, the Discoverer STT Pro tire is our most advanced, extreme and capable off-road tire to date. This is a tire built for the kind of adventure you find at remote destinations.

The Discoverer STT Pro lets you go where others won’t. Rock, mud and dirt have all met their match. Now, go make molehills out of mountains.

Tires to dominate off road.

Attention off-road warriors, the Discoverer STT Pro tire is our most advanced, extreme and capable off-road tire to date. This is a tire built for the kind of adventure you find at remote destinations.

The Discoverer STT Pro lets you go where others won’t. Rock, mud and dirt have all met their match. Now, go make molehills out of mountains.

Tire specifications

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Discoverer STT Pro Reviews

Cooper Tire Warranties

Discoverer® STT Pro™ comes with a Standard Limited Warranty.

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Warranty protection

Treadwear Protection

The Discoverer STT Pro is NOT protected by a Treadwear Protection Warranty.

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45-Day Satisfaction Guarantee

45-Day Satisfaction Guarantee

At Cooper, we stand behind the innovative technology we roll into our tires, and we think you'll be 100% satisfied with them. That's why we offer our 45-Day Satisfaction Guarantee.

Learn More

Mastering the art and science of tires for 100+ years.

At Cooper, we’ve spent over a century building quality tires that are made to last. Our team of dedicated engineers are the forefront of the latest tire technology, always looking for new ways to heighten the way you drive. Incredible performance, reliable safety and a price that won’t break the bank. That’s what you can expect from Cooper Tire.

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