Cooper
Discoverer® AT3 XLT™
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All-Season
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60k mi Warranty
Does this tire fit your vehicle?
Enter your vehicle or tire size information first to see if this tire fits. Then you’ll be able to take a look at relevant, detailed specs.
Tire Features
Even Wear Arc™ Technology helps maintain balanced on-road treadwear and impressive handling throughout the life of the tire.
Whisper Grooves™ Technology provides a sound barrier that makes for a more peaceful, quiet ride.
Stone ledges eject stones and gravel, safeguarding the tire from damage.
Warranties & Guarantees
Our satisfaction pledge gives you 45 days to decide whether to keep select tires or exchange them for a different set of tires.
Exclusions apply; see full warranty for details.
Learn MoreThis tire is eligible for the Standard Limited Warranty.
Exclusions apply; see full warranty for details.
Learn MoreWe know you want to get the most out of your tires. That’s why we confidently back this tire with a warranty that helps protect you in the case of premature treadwear.
60,000 mi./ 90,000 kmExclusions apply; see full warranty for details.
Learn MoreFull Specs
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Load Range
E -
Load Index
129.0 -
Speed Rating
S -
Measured Rim Width (in.)
8.0 -
Section Width (mm)
285 -
Revs Per Mile
595 -
Max Load (lbs)
4080 -
Max Inflation Pressure (PSI)
80 -
Outside Diameter (in.)
34.84 -
Tread Depth (in 32nds)
17 -
Tire Size
285/75R18 -
Approved Rim Width (in.)
7.5-9.5