Discoverer A/T3™

Fits SUVs/CUVs and Trucks/Pickups All-Season

Discoverer A/T3™ is rated 4.3 out of 5 by 261.
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Standard Limited Warranty
55,000 Mile Treadwear Protection - Light Truck sizes
60,000 Mile Treadwear Protection - SUV sizes

The Discoverer A/T3™ is an all-season, all-terrain tire designed to perform well on the highway and off for drivers of SUVs and light duty 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 Tire Weight Max Load Tread Depth (1/32")
235/75R15 109T 560 A B XL OWL 6 - 8 6.5 9.3 28.74 6.73 33 2271 14
235/75R15 105T 560 A B STD OWL 6 - 8 6.5 9.3 28.74 6.73 32 2039 14
265/75R15 112T 560 A B STD OWL 7 - 8.5 7.5 10.5 30.55 7.72 38 2469 14
225/70R15 100T 560 A B STD OWL 6 - 7 6.5 9 27.68 6.97 30 1764 13.5
255/70R15 108T 560 A B STD OWL 6.5 - 8.5 7.5 10.3 29.09 7.95 37 2205 14
265/70R15 112T 560 A B STD OWL 7 - 9 8 10.7 29.65 8.27 38 2469 14
225/75R16 104T 560 A B STD OWL 6 - 7.5 6 8.6 29.13 6.38 30 1984 13.5
235/75R16 108T 560 A B STD OWL 6 - 8 6.5 9.3 29.72 6.73 34 2205 14
245/75R16 111T 560 A B STD OWL 6.5 - 8 7 9.6 30.31 7.05 36 2403 14
265/75R16 116T 560 A B STD OWL 7 - 9 7.5 10.5 31.57 7.72 42 2756 14
215/70R16 100T 560 A B STD OWL 5.5 - 7 6.5 8.7 27.72 6.89 30 1764 13.5
225/70R16 103T 560 A B STD OWL 6 - 7.5 6.5 9 28.66 6.97 31 1929 13.5
235/70R16 106T 560 A B STD OWL 6 - 8 7 9.4 28.82 7.4 33 2094 13.5
245/70R16 111T 560 A B XL OWL 6.5 - 8 7 9.8 29.45 7.64 36 2403 13.5
245/70R16 107T 560 A B STD OWL 6.5 - 8 7 9.8 29.45 7.64 35 2149 13.5
255/70R16 111T 560 A B STD OWL 6.5 - 8.5 7.5 10.2 30.04 7.95 38 2403 14
265/70R16 112T 560 A B STD OWL 7 - 9 8 10.8 30.39 8.27 40 2469 14
235/75R17 109T 560 A B STD OWL 6 - 8 6.5 9.3 30.75 6.85 35 2271 14
255/75R17 115T 560 A B STD OWL 6.5 - 8.5 7 10 31.97 7.44 39 2679 14
235/70R17 111T 560 A B XL BLK 6 - 8 7 9.5 30 7.44 36 2403 13.5
245/70R17 110T 560 A B STD OWL 6.5 - 8 7 9.7 30.47 7.72 37 2337 13.5
255/70R17 112T 560 A B STD OWL 6.5 - 8.5 7.5 10.2 31.18 7.91 40 2469 14
265/70R17 115T 560 A B STD OWL 7 - 9 8 10.7 31.42 8.27 42 2679 14
P285/70R17 117T 560 A B STD OWL 7.5 - 9.5 8.5 11.5 32.76 8.94 45 2833 14
235/65R17 104T 560 A B STD OWL 6.5 - 8.5 7 9.5 29.21 7.52 35 1984 13
245/65R17 107T 560 A B STD OWL 7 - 8.5 7 9.5 29.53 7.68 35 2149 13
245/65R17 111T 560 A B XL OWL 7 - 8.5 7 9.5 29.53 7.68 37 2403 13
255/65R17 110T 560 A B STD OWL 7 - 9 7.5 10.1 30.16 8.19 38 2337 13
265/65R17 112T 560 A B STD OWL 7.5 - 9.5 8 10.6 30.59 8.5 39 2469 13
235/60R17 102T 560 A B STD OWL 6.5 - 8.5 7 9.6 28.31 7.64 32 1874 12.5
255/70R18 113T 560 A B STD BLK 6.5 - 8.5 7.5 10.2 32.13 8.07 41 2535 14
265/70R18 116T 560 A B STD OWL 7 - 9 8 10.7 32.64 8.39 44 2756 14
265/65R18 114T 560 A B STD OWL 7.5 - 9.5 8 10.7 31.54 8.54 42 2601 13
275/65R18 116T 560 A B STD OWL 7.5 - 9.5 8 11 32.13 8.74 44 2756 13
265/60R18 110T 560 A B STD OWL 7.5 - 9.5 8 10.7 30.55 8.62 40 2337 12.5
275/60R20 115T 560 A B STD OWL 7.5 - 9.5 8 10.9 33.03 8.86 44 2679 12.5
275/55R20 117T 560 A B XL OWL 7.5 - 9.5 8.5 10.9 31.93 9.13 44 2833 12.5
265/50R20 107T 560 A B STD OWL 7.5 - 9.5 8.5 10.9 30.51 8.78 40 2149 12
LT235/75R15 104\101R C OWL 6 - 7 6.5 9.1 28.9 7.01 36 1985 16
30X9.50R15LT 104R C OWL 6.5 - 8.5 7.5 9.6 29.29 7.28 38 1985 16.5
31X10.50R15LT 109R C OWL 7 - 9 8.5 10.6 30.2 8.31 42 2270 16.5
32X11.50R15LT 113R C OWL 8 - 10 9 11.6 31.42 9.09 44 2535 17
33X12.50R15LT 108R C OWL 8.5 - 11 10 12.6 32.36 9.69 52 2205 17
LT215/85R16 115\112R E BLK 5.5 - 7 6 8.4 30.31 5.98 38 2680 16.5
LT235/85R16 120\116R E BLK 6 - 7.5 6.5 9.4 31.77 6.69 44 3042 16.5
LT225/75R16 115\112R E BLK 6 - 7 6 8.5 29.33 7.01 39 2680 16.5
LT245/75R16 120\116R E OWL 6.5 - 8 7 9.7 30.35 7.52 44 3042 16.5
LT245/75R16 108\104R C OWL 6.5 - 7.5 7 9.6 30.51 7.4 41 2205 16.5
LT245/75R16 120\116R E BLK 6.5 - 8 7 9.7 30.35 7.52 43 3042 16.5
LT265/75R16 123\120R E OWL 7 - 8 7.5 10.6 31.61 7.8 49 3415 16.5
LT265/75R16 112\109R C OWL 7 - 8 7.5 10.5 31.61 7.8 46 2470 16.5
LT285/75R16 126\123R E OWL 7.5 - 9 8 11.6 32.56 8.9 54 3750 17
LT295/75R16 128\125R E OWL 7.5 - 9.5 8 11.9 33.35 9.21 57 3970 17
LT315/75R16 127\124R E OWL 8 - 11 8.5 12.4 34.49 9.8 63 3860 17
LT245/70R16 118\115R E OWL 6.5 - 8 7 9.8 29.53 7.87 44 2910 16.5
LT255/70R16 108\104R C OWL 6.5 - 8 7.5 10.4 30.08 8.11 42 2205 16.5
LT265/70R16 121\118R E OWL 7 - 9 8 10.9 30.63 8.58 47 3195 16.5
LT305/70R16 124\121R E OWL 8 - 9.5 9 12.2 32.72 9.69 57 3525 17
LT235/80R17 120\117R E OWL 6 - 7.5 6.5 9.2 31.77 6.69 43 3085 16.5
LT225/75R17 116\113R E BLK 6 - 7.5 6 8.7 30.35 7.01 41 2755 16.5
LT245/75R17 121\118S E OWL 6.5 - 7.5 7 10 31.5 7.64 46 3195 16
LT285/75R17 121\118S E BLK 7.5 - 9.5 8 11.5 33.82 8.9 57 3195 17
LT245/70R17 119\116S E OWL 6.5 - 8 7 9.8 30.55 7.87 44 3000 16.5
LT265/70R17 121\118S E OWL 7 - 8.5 8 10.9 31.65 8.62 50 3195 16.5
LT265/70R17 112\109S C OWL 7 - 8.5 8 10.6 31.57 8.62 47 2470 16.5
LT275/70R17 114\110S C OWL 7 - 8.5 8 11.1 32.2 8.66 51 2600 16.5
LT275/70R17 121\118R E OWL 7 - 8.5 8 11 32.17 8.86 52 3195 16.5
LT285/70R17 121\118S E OWL 7.5 - 9 8.5 11.4 32.83 9.09 55 3195 17
LT295/70R17 121\118R E OWL 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 60 3195 17
LT315/70R17 121\118S E OWL 8 - 11 9.5 12.6 34.33 10 63 3195 17
LT265/65R17 120\117R E OWL 7.5 - 9.5 8 10.7 30.51 8.7 47 3085 16
LT275/65R17 121\118S E OWL 7.5 - 9.5 8 11 31.1 8.9 50 3195 16
LT285/65R17 121\118S E OWL 8 - 10 8.5 11.5 31.57 9.41 52 3195 16
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 59 4080 17
LT265/70R18 124\121S E OWL 7 - 9 8 10.7 32.64 8.62 54 3525 16.5
LT275/70R18 125\122S E OWL 7 - 8.5 8 11.1 33.23 8.9 54 3640 16
LT295/70R18 129\126S E BLK 7.5 - 10 8.5 12 34.25 9.41 59 4080 17
LT265/65R18 122\119R E BLK 7.5 - 9.5 8 10.7 31.54 8.7 49 3305 16
LT275/65R18 113\110S C OWL 7.5 - 9.5 8 11.1 32.09 8.9 51 2535 16
LT275/65R18 123\120S E OWL 7.5 - 9.5 8 11.1 32.09 8.9 53 3415 16
LT285/65R18 125\122S E OWL 8 - 10 8.5 11.6 32.56 9.41 56 3640 16
LT305/65R18 124\121S E BLK 8.5 - 11 9 12.2 33.58 10 59 3525 16.5
LT325/65R18 127\124R E OWL 9 - 12 9.5 13 34.61 10.59 68 3860 16.5
LT265/60R18 119\116S E BLK 7.5 - 9.5 8 10.7 30.51 8.78 48 3000 16
LT325/60R18 124\121R E BLK 9 - 12 9.5 13 33.35 10.63 61 3525 16.5
35X12.50R18LT 123R E BLK 8.5 - 11 10 12.5 34.96 9.88 63 3415 16.5
LT275/65R20 126\123S E OWL 7.5 - 9.5 8 11.1 34.21 8.9 57 3750 16
LT265/60R20 121\118R E BLK 7.5 - 9.5 8 10.7 32.52 8.78 53 3195 16
LT285/60R20 125\122S E OWL 8 - 10 8.5 11.3 33.7 9.69 59 3640 16
LT295/60R20 126\123S E BLK 8 - 10 8.5 11.5 34.13 9.72 59 3750 16.5
LT325/60R20 126\123R E OWL 9 - 12 9.5 13 35.35 10.59 67 3750 16.5
LT285/55R20 122\119R E BLK 8 - 10 9 11.7 32.36 9.69 55 3305 16
LT305/55R20 121\118S E BLK 8.5 - 11 9.5 12.2 33.35 10.31 59 3195 16
35X12.50R20LT 121R E BLK 8.5 - 11 10 12.5 34.65 10 64 3195 16.5

Reviews

Rated 5 out of 5 by from So happy with my tires !! Bought a set for my '98 F150. Being a woman I wasn't real knowledgeable on tires. Really happy with the performance. 35K miles and still have plenty of tread left !! They look good, handle great and aren't noisy. I'll be buying another set when this one finally wears out !!
Date published: 2018-09-02
Rated 4 out of 5 by from Great tire in bad weather but very noisy! I am a first responder and must get to work no matter what the weather is. The Cooper Discoverer A/T3 has been a good choice for this, particularly in the snow. The only issue I've had is the road noise. As the tires wore down they became louder to the point where I had to replace them early (plenty of tread left). Despite the noise issue, I would recommend these tires to anyone who must get to where they're going no matter what.
Date published: 2018-08-31
Rated 5 out of 5 by from Great traction in all types of weather I belive I had an older version of the Cooper Discoverer A/T tires but they have essentially the same tread pattern. Though being relatively worn these tires proved to be nearly unstoppable. Faced with rain, snow, sleet, slush and mud these tires succeeded time and time again. They came on an old 4x4 pickup that I bought and I always wanted to buy something "better" (so i thought) but never got around to it, luckily. After a snow storm hit our area these tires got their chance to prove themselves for the first time. The 5.9 liter '99 ram 1500 4x4 paired with these was an exceptional combination. A truck can only do so much without good tires. I have since sold that truck; however am now looking into replacing tires on my other truck. I am certainly looking into the Discoverer A/T3's as an option. And most likely will purchase.
Date published: 2018-08-24
Rated 5 out of 5 by from Great tires I will buy Cooper tires again and again if I live that long they last forever. Still wishing for some RWL in 18 inch for my 2014 Mustang
Date published: 2018-08-23
Rated 5 out of 5 by from Great product superior traction to Michelin Was upset with the Michelin tires on my truck had to use 4x4 in wet grass never have this problem with at3
Date published: 2018-08-23
Rated 5 out of 5 by from great bang for your buck I live in the Adirondack Mountains. Lot of snow, and back roads, these tires are great in all situations. I have had Coopers on all my trucks, great bang for your buck
Date published: 2018-08-23
Rated 5 out of 5 by from Great tire! I have these tires on my 2015 GMC Savana and the same set was on my 1998 Savana work truck. Together on both vehicles I got 4.5 years and will get approx 60k miles out of them. I'm looking forward to my next set of these A/T3's. I'm currently running 265/70/16 and going to a set of 18's next. Great treadwear and a good looking tire. Never was bothered by road noise, probably because I have a killer sound system in my truck so I never heard any lol.
Date published: 2018-08-12
Rated 4 out of 5 by from Pretty Good Bought these tires a few years back, had about 115,000 now I'm at 138,000. Have a 2 wheel drive pick up but needed a more aggressive tire for the gravel and dirt road I have to drive on. The only time I was worried, but proved me wrong, Drove on a dirt road nothing but mud after a storm, slid a few times, but the tires would still find some kind of traction. Had a full load 5 people in the truck. On our way out was a very steep hill, was able to get up and out of there. great tire for the price. Just wish it lasted a little longer, need to get a new set. But my new set will be coopers. Can't wait for the new pair and all of the new adventures to come with them!
Date published: 2018-07-29
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Warranty

Standard Limited Warranty

60,000 Mile Treadwear Protection


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

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