Discoverer AT3 XLT™

Fits Trucks/Pickups All-Season

Discoverer AT3 XLT™ is rated 4.8 out of 5 by 16.
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Standard Limited Warranty
Free 45-Day Road Test
96,000 km Treadwear Protection - LT-Metric Sizes

 

The Discoverer AT3 XLT™ with Durable Tread Technology™ haul heavy loads with less wear and are built to withstand ongoing assault from dirt and gravel.

  • Designed to prevent shredding on rocky and gravel terrain
  • Extreme durability for hauling
  • Rugged, biting edges on the shoulder of the tire, for extra grip and resistance to punctures
  • Stops on average at least 10 feet shorter on wet roads*

Features

Dry Performance

The tire’s ability to grip the road in dry conditions.

Wet Performance

The tire’s ability to grip the road in wet conditions.

Tread Wear

The wear rate of the tire.

Quiet Ride

The measure of how quiet a tire is while driving.

Handling

How the tire is able to respond to driving such as accelerating, braking, steering and turning.

Off Road

The tire’s ability to have grip on unpaved surfaces such as dirt, mud, sand, rock or gravel.

*When compared to other Cooper® tires.

Tire Design

  • Even Wear Arc Technology™

    Tire shape engineered to strategically balance pressure at the tire-to-road contact area promoting even on-road treadwear and superior handling.

  • Whisper Grooves™

    The "Whisper Groove™" provides a sound barrier that reduces road noise.

  • Rugged Traction Shoulders

    Rugged traction shoulders provide increased off-road traction for boulder crawling and mud handling as well as additional resistance to abrasion and punctures.

  • Stone Ejector Ledges

    Ledges easily eject stones and gravel, protecting the tire from stones drilling into carcass and maintaining a clean tread for enhanced road traction.

Full Specs

Tire Size Service Description UTQG Load Range Sidewall Approved Rim Width Measured Rim Width Section Width Overall Diameter Tread Width Tire Weight Max Load Tread Depth (1/32")
31X10.50R15LT 109R C RWL 7 - 9 8.5 10.6 30.2 8.31 44 2270 16.5
32X11.50R15LT 113R C RWL 8 - 10 9 11.6 31.42 9.09 48 2535 17
33X12.50R15LT 108R C RWL 8.5 - 11 10 12.6 32.36 9.69 54 2205 17
LT285/75R16 126\123R E RWL 7.5 - 9 8 11.6 32.56 8.9 54 3750 17
LT295/75R16 128\125R E RWL 7.5 - 9.5 8 11.9 33.35 9.21 58 3970 17
LT315/75R16 127\0R E RWL 8 - 11 8.5 12.4 34.49 9.8 40 3860 17
LT305/70R16 124\121R E RWL 8 - 9.5 9 12.2 32.72 9.69 57 3525 17
LT285/75R17 121\118S E BLK 7.5 - 9.5 8 11.5 33.82 8.9 58 3195 17
LT285/70R17 121\118S E RWL 7.5 - 9 8.5 11.4 32.83 9.09 56 3195 17
LT295/70R17 121\118R E RWL 7.5 - 10 8.5 11.9 33.35 9.41 58 3195 17
LT305/70R17 121\118R E BLK 8 - 9.5 9 12.2 33.86 9.8 61 3195 17
LT315/70R17 121\118S E RWL 8 - 11 9.5 12.6 34.33 10 64 3195 17
37X12.50R17LT 124R D BLK 8.5 - 11 10 12.5 36.54 10 68 3525 18
LT285/75R18 129\126S E BLK 7.5 - 9.5 8 11.5 34.84 8.9 60 4080 17
LT265/70R18 124\121S E RWL 7 - 9 8 10.7 32.64 8.62 53 3525 16.5
LT275/70R18 125\122S E RWL 7 - 8.5 8 11.1 33.23 8.9 57 3640 16
LT295/70R18 129\126S E BLK 7.5 - 10 8.5 12 34.25 9.41 61 4080 17
LT285/65R18 125\122S E RWL 8 - 10 8.5 11.6 32.56 9.41 57 3640 16
LT305/65R18 124\121S E BLK 8.5 - 11 9 12.2 33.58 10 62 3525 16.5
LT325/65R18 127\124R E RWL 9 - 12 9.5 13 34.61 10.59 68 3860 16.5
LT325/60R18 124\121R E BLK 9 - 12 9.5 13 33.35 10.63 63 3525 16.5
35X12.50R18LT 123R E BLK 8.5 - 11 10 12.5 34.96 9.88 66 3415 16.5
LT275/65R20 126\123S E RWL 7.5 - 9.5 8 11.1 34.21 8.9 61 3750 16
LT285/65R20 127\124S E RWL 8 - 10 8.5 11.5 34.57 9.69 62 3860 16
LT265/60R20 121\118R E BLK 7.5 - 9.5 8 10.7 32.52 8.78 57 3195 16
LT285/60R20 125\122S E BLK 8 - 10 8.5 11.3 33.7 9.69 60 3640 16
LT295/60R20 126\123S E BLK 8 - 10 8.5 11.5 34.13 9.72 61 3750 16.5
LT325/60R20 126\123R E RWL 9 - 12 9.5 13 35.35 10.59 70 3750 16.5
LT285/55R20 122\119R E BLK 8 - 10 9 11.7 32.36 9.69 59 3305 16
LT305/55R20 121\118S E BLK 8.5 - 11 9.5 12.2 33.35 10.31 62 3195 16
35X12.50R20LT 121R E BLK 8.5 - 11 10 12.5 34.65 10 66 3195 16.5

Reviews

Rated 5 out of 5 by from Total Surprise and very pleased First time ever using Cooper Tires, and I got to admit I am very pleased with the quiet and very smooth ride. I needed a more aggressive tire on my 2016 Ram 2500 Diesel an I believe I found the right tires.. Thanks Cooper Tires
Date published: 2018-11-01
Rated 2 out of 5 by from These tires are great until you put a trailer on behind. Bought these tires and they did as advertised until I put my 27' v-nose enclosed trailer on behind me. This truck and trailer combination has been the same for 5 years with no concerns. After putting these tires on pulling this trailer down the grooved interstates we have out west it was not anything I want to experiance again. Sidewalls seemed to roll to easy and the truck and trailer would not go straight down the road as I was used to.
Date published: 2018-10-26
Rated 5 out of 5 by from Great tires for a Tahoe I just put 285/60/20's on my 2017 Tahoe 4x4. I was concerned about road noise at first but wanted 10 ply tires for durability. They look aggressive but offer a smooth ride and little to no road noise.
Date published: 2018-10-19
Rated 5 out of 5 by from Excellent ride I purchased this tire in LT285/60-20 size a month ago to replace the terrible factory tires, and after 4,800 miles I can say I’m very pleased with the traction,handling, and quiet/smooth ride of these tires. They’ve performed very well on everything from the freeways to the ranch and gas wells. They clean out well and have not retained small stones. Traction in the rain is excellent as well. From the measured wear so far, I should expect to get between 50-60,000 miles of life if the wear rate remains consistent.
Date published: 2018-10-19
Rated 5 out of 5 by from A well mannered HD tire! I just got (4) AT3 XLT in 285/75R18E for my 2016 Ram 2500 Laramie. What can I say? I am impressed! I can now have a larger than stock tire, with strong sidewalls that can handle the extra weight & demands of a 3/4 ton truck, without having to buy an off-road tire with poor tread life. These tires are the best of both worlds: Durability & Long tread life!
Date published: 2018-09-28
Rated 5 out of 5 by from Awesome tire I have loved Cooper Tires forever but these tires are the best. American made great tire. I drive an F-350 towing a 38 ft goose neck hauling 17K pounds not just on the highway but through mud, sand and rocks on job sites. Recently through 6 to 8 inches of mud pulling a tandem axle, tandem wheeled loaded trailer that is like dragging an anchor.I am very impressed with the Discoverer AT3 XLT. My truck with the Discoverer AT3 XLT pulled the trailer with ease, very little spinning mud cleaned out of the tread great. Off the job site on the highway very quiet I have to watch my speed now, no more tire noise to let me know how fast I am going. I highly recommend the Discoverer AT3 XLT. I have only had them a few weeks so I am not sure about the tread wear or durability but from my past experience with Cooper Tires I think it well be great. Off Road Xtreme has a good review of the tire.
Date published: 2018-09-23
Rated 5 out of 5 by from Smooth ride and super quiet I love these tires! Tread last a long time and there’s little to no road noise at all. Really smooth ride! I’ve always liked the quality of the old at3’s But now I really love the more aggressive look.
Date published: 2018-09-19
Rated 5 out of 5 by from SWEET! 2013 F150 I studied for months on which tires to get and glad I did the XLT's came out! Had 265/60r18 stock..went to 275/70r18 so adding approx 10% more on speedometer and to what my truck says it's mpg is.. Very happy with these tires, no complaints, smooth, quiet and look great! Awesome floor mats also came quicker than I expected..!
Date published: 2018-09-18
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Videos

Warranty

Standard Limited Warranty
Free 45-Day Road Test
96,000 km Treadwear Protection - LT-Metric Sizes


Download the 2018 Consumer Replacement Tire Guide, Limited Warranty & Registration Booklet.

Reward

70 Discoverer AT3 XLT™
  • Wet stopping distance as compared to leading LT-denoted all-terrain tires reviewed on well-known consumer ratings sites. Individual on-road results may vary.