Discoverer A/T3™

Fits SUVs/CUVs and Trucks/Pickups All-Season

Discoverer A/T3™ is rated 4.3 out of 5 by 230.
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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, breaking, 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 33 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 32 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 35 2403 13.5
245/70R16 107T 560 A B STD OWL 6.5 - 8 7 9.8 29.45 7.64 36 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 42 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 32 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 45 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 44 2270 16.5
32X11.50R15LT 113R C OWL 8 - 10 9 11.6 31.42 9.09 47 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 43 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 42 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 43 2910 16.5
LT255/70R16 108\104R C OWL 6.5 - 8 7.5 10.4 30.08 8.11 43 2205 16.5
LT265/70R16 121\118R E OWL 7 - 9 8 10.9 30.63 8.58 46 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 49 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 69 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 48 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 71 3860 16.5
LT265/60R18 119\116S E BLK 7.5 - 9.5 8 10.7 30.51 8.78 49 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 52 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 Smooth and well balanced I installed a premium brand tire last week and they were the worst tire I’ve ever owned. The following day I informed my retailer they were coming off and to order some AT3 Coopers. Once installed, the max weight I saw was 2.5 oz on a set of 285/75/17 10 ply (2016 Cummins). When I hit the road, they were smooth right up to 70 mph. Coopers should have been my first choice and will be for the next set!
Date published: 2018-02-16
Rated 5 out of 5 by from These tires or the best I have ever bought I have bought a new set for all my 4 wd trucks I have had I got a new set of 33 12.50 -15 on my full size truck now
Date published: 2018-01-18
Rated 5 out of 5 by from Miles and Miles Good dependable tires, good value for the dollar. Spent $177/ea on them three years ago, have just now 54,970 miles on the 55k warranty and have had no issues with tires themselves. Great handling on the highway and gravel roads, bought them at Discount Tire and still had the free flat repairs for unexpected road hazards. Quiet enough in a big truck - have done 1k mile road trips with no problem. Really good in slick conditions, I drive in high traffic 5 days a week.
Date published: 2018-01-11
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
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Warranty

Standard Limited Warranty

60,000 Mile Treadwear Protection


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

Reward

70 Discoverer A/T3™