Discoverer A/T3™

Fits Trucks/Pickups All-Season

Discoverer A/T3™ is rated 4.3 out of 5 by 227.
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Standard Limited Warranty
90,000 km Treadwear Protection

The Discoverer A/T3™ is an all-season, all-terrain tire designed to perform well on the highway and off for drivers of pickup trucks.

  • Excellent highway performance
  • Excellent wet traction
  • Improved treadwear and traction in rocky and gravel terrain

M+S Rated

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

  • Aggressive 5-Rib All-Terrain Design

    For all-terrain performance, all-season traction, stability, handling and treadwear.

  • Coupled Tread Elements

    Excellent stability and confident handling.

  • Wide Circumferential Grooves

    Improves soft surface traction, aids in the tires' ability to clean itself, resistance to hydroplaning and stone retention.

Full Specs

Tire Size Service Description UTQG Load Range Sidewall Approved Rim Width Measured Rim Width Section Width Overall Diameter Tread Width Max Load Tread Depth (1/32")
LT235/75R15 104\101R C OWL 6 - 7 6.5 9.1 28.9 7.01 1985 16
30X9.50R15LT 104R C OWL 6.5 - 8.5 7.5 9.6 29.29 7.28 1985 16.5
31X10.50R15LT 109R C OWL 7 - 9 8.5 10.6 30.2 8.31 2270 16.5
32X11.50R15LT 113R C OWL 8 - 10 9 11.6 31.42 9.09 2535 17
33X12.50R15LT 108R C OWL 8.5 - 11 10 12.6 32.36 9.69 2205 17
LT215/85R16 115\112R E BLK 5.5 - 7 6 8.4 30.31 5.98 2680 16.5
LT235/85R16 120\116R E BLK 6 - 7.5 6.5 9.4 31.77 6.69 3042 16.5
LT225/75R16 115\112R E BLK 6 - 7 6 8.5 29.33 7.01 2680 16.5
LT245/75R16 120\116R E OWL 6.5 - 8 7 9.7 30.35 7.52 3042 16.5
LT245/75R16 108\104R C OWL 6.5 - 7.5 7 9.6 30.51 7.4 2205 16.5
LT245/75R16 120\116R E BLK 6.5 - 8 7 9.7 30.35 7.52 3042 16.5
LT265/75R16 123\120R E OWL 7 - 8 7.5 10.6 31.61 7.8 3415 16.5
LT265/75R16 112\109R C OWL 7 - 8 7.5 10.5 31.61 7.8 2470 16.5
LT285/75R16 126\123R E OWL 7.5 - 9 8 11.6 32.56 8.9 3750 17
LT295/75R16 128\125R E OWL 7.5 - 9.5 8 11.9 33.35 9.21 3970 17
LT315/75R16 127\124R E OWL 8 - 11 8.5 12.4 34.49 9.8 3860 17
LT245/70R16 118\115R E OWL 6.5 - 8 7 9.8 29.53 7.87 2910 16.5
LT255/70R16 108\104R C OWL 6.5 - 8 7.5 10.4 30.08 8.11 2205 16.5
LT265/70R16 121\118R E OWL 7 - 9 8 10.9 30.63 8.58 3195 16.5
LT305/70R16 124\121R E OWL 8 - 9.5 9 12.2 32.72 9.69 3525 17
LT235/80R17 120\117R E OWL 6 - 7.5 6.5 9.2 31.77 6.69 3085 16.5
LT225/75R17 116\113R E BLK 6 - 7.5 6 8.7 30.35 7.01 2755 16.5
LT245/75R17 121\118S E OWL 6.5 - 7.5 7 10 31.5 7.64 3195 16
LT285/75R17 121\118S E BLK 7.5 - 9.5 8 11.5 33.82 8.9 3195 17
LT245/70R17 119\116S E OWL 6.5 - 8 7 9.8 30.55 7.87 3000 16.5
LT265/70R17 121\118S E OWL 7 - 8.5 8 10.9 31.65 8.62 3195 16.5
LT265/70R17 112\109S C OWL 7 - 8.5 8 10.6 31.57 8.62 2470 16.5
LT275/70R17 114\110S C OWL 7 - 8.5 8 11.1 32.2 8.66 2600 16.5
LT275/70R17 121\118R E OWL 7 - 8.5 8 11 32.17 8.86 3195 16.5
LT285/70R17 121\118S E OWL 7.5 - 9 8.5 11.4 32.83 9.09 3195 17
LT295/70R17 121\118R E OWL 7.5 - 10 8.5 11.9 33.35 9.41 3195 17
LT305/70R17 121\118R E BLK 8 - 9.5 9 12.2 33.86 9.8 3195 17
LT315/70R17 121\118S E OWL 8 - 11 9.5 12.6 34.33 10 3195 17
LT265/65R17 120\117R E OWL 7.5 - 9.5 8 10.7 30.51 8.7 3085 16
LT275/65R17 121\118S E OWL 7.5 - 9.5 8 11 31.1 8.9 3195 16
LT285/65R17 121\118S E OWL 8 - 10 8.5 11.5 31.57 9.41 3195 16
37X12.50R17LT 124R D BLK 8.5 - 11 10 12.5 36.54 10 3525 18
LT285/75R18 129\126S E BLK 7.5 - 9.5 8 11.5 34.84 8.9 4080 17
LT265/70R18 124\121S E OWL 7 - 9 8 10.7 32.64 8.62 3525 16.5
LT275/70R18 125\122S E OWL 7 - 8.5 8 11.1 33.23 8.9 3640 16
LT295/70R18 129\126S E BLK 7.5 - 10 8.5 12 34.25 9.41 4080 17
LT265/65R18 122\119R E BLK 7.5 - 9.5 8 10.7 31.54 8.7 3305 16
LT275/65R18 113\110S C OWL 7.5 - 9.5 8 11.1 32.09 8.9 2535 16
LT275/65R18 123\120S E OWL 7.5 - 9.5 8 11.1 32.09 8.9 3415 16
LT285/65R18 125\122S E OWL 8 - 10 8.5 11.6 32.56 9.41 3640 16
LT305/65R18 124\121S E BLK 8.5 - 11 9 12.2 33.58 10 3525 16.5
LT325/65R18 127\124R E OWL 9 - 12 9.5 13 34.61 10.59 3860 16.5
LT265/60R18 119\116S E BLK 7.5 - 9.5 8 10.7 30.51 8.78 3000 16
LT325/60R18 124\121R E BLK 9 - 12 9.5 13 33.35 10.63 3525 16.5
35X12.50R18LT 123R E BLK 8.5 - 11 10 12.5 34.96 9.88 3415 16.5
LT275/65R20 126\123S E OWL 7.5 - 9.5 8 11.1 34.21 8.9 3750 16
LT265/60R20 121\118R E BLK 7.5 - 9.5 8 10.7 32.52 8.78 3195 16
LT285/60R20 125\122S E OWL 8 - 10 8.5 11.3 33.7 9.69 3640 16
LT295/60R20 126\123S E BLK 8 - 10 8.5 11.5 34.13 9.72 3750 16.5
LT325/60R20 126\123R E OWL 9 - 12 9.5 13 35.35 10.59 3750 16.5
LT285/55R20 122\119R E BLK 8 - 10 9 11.7 32.36 9.69 3305 16
LT305/55R20 121\118S E BLK 8.5 - 11 9.5 12.2 33.35 10.31 3195 16
35X12.50R20LT 121R E BLK 8.5 - 11 10 12.5 34.65 10 3195 16.5

Reviews

Rated 5 out of 5 by from Good tire. Have these on my very heavy work rig. After about 30K with no problems they started cupping and i found one of my front socks had blown out. So i had to put them on back and go without rotations after that. But still got 44K out of them and they were pushed hard. Traction was great. I'd spin them up some loose rocky hills and would make it. Never had any sidewall give which is a concern for me when i load up the vehicle. A great product.
Date published: 2018-01-08
Rated 5 out of 5 by from 3rd Time is a Charm Bought Discoverer A/T3 for my 2003 Ford Ranger XLT 4x4. I replaced BF Goodrich, previous to those was Firestone. I am the original owner 102000 miles I am happy to report these Cooper tires are superior in all categories. They took minimal weight to balance, ride is superior, handling is excellent road noise is nonexistent. Traction in snow superior, no negatives at all. Best of all Made in the USA!
Date published: 2018-01-07
Rated 3 out of 5 by from All season? Maybe in the south These were on the Tundra when I bought it. Edges wore poorly so I had alignment. First winter on them. Half tread remaining and there is very little grip in snow.
Date published: 2018-01-07
Rated 5 out of 5 by from Excellent tire, great results The A/T3 is one of the best tires I've owned. I ran two sets of them on my 2500HD Silverado diesel and was extremely pleased with the quietness, traction, and treadwear (roughly 60,000 miles on a set, including a reasonable amount of gravel road usage). I wanted to buy a third set later for my Suburban, but I had to go with an ATP instead as the required size wasn't available in the A/T3.
Date published: 2018-01-03
Rated 5 out of 5 by from Zero Complaints. No uneven tread wear, no road noise and Zero Complains. I had these put on a new GMC Z71 off the lot and I currently have just over 59k miles on them. And I know I didn't rotate them as often as I should have.
Date published: 2018-01-01
Rated 5 out of 5 by from Awesome Tire ! Great Price ! I spent a lot of hours on the internet reading reviews and tests on many tires. I live in the mountains and go to work usually before the plows hit our streets. Actually, I sometimes take one of the snow plow drivers to work on my way to my bus driving job. My new A/T3s are fantastic. Driving on hunting trails I didn't have to use 4WD until the snow and mud got deep. I will keep you updated on tread life since I only have 3k miles on them. So far best tire I,ve had on my 2000 Wrangler.
Date published: 2017-12-27
Rated 5 out of 5 by from Best tire I've purchased in a while. I came from sets of Goodrich, Goodyear and decided to try Cooper and I'm glad I did. Cooper is by far the best out of all the tires I've had. Very quiet on road, solid traction off road. I've yet to have them in the snow but I doubt I'll be disappointed. I would definitely recommend these tires.
Date published: 2017-11-21
Rated 5 out of 5 by from On my second set. Ran a set on my 2013 GMC Sierra. Great on Minnesota deep snowy/icy roads. Traded the truck with about 40k miles on tires and they still had ample tread. Bought a new 2016 Sierra Denali last year and changed the factory slicks to these tires again. Love them.
Date published: 2017-11-20
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Warranty

Standard Limited Warranty

90,000 km Treadwear Protection


Download the 2017 Consumer Replacement Tire Guide, Limited Warranty & Registration Booklet.

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