Discoverer A/T3™

Fits SUVs/CUVs and Trucks/Pickups All-Season

Discoverer A/T3™ is rated 4.3 out of 5 by 213.
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Standard Limited Warranty
60,000 Mile 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 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 Max Load Tread Depth (1/32")
235/75R15 109T 560 A B XL OWL 6 - 8 6.5 9.3 28.74 6.73 2271 14
235/75R15 105T 560 A B STD OWL 6 - 8 6.5 9.3 28.74 6.73 2039 14
265/75R15 112T 560 A B STD OWL 7 - 8.5 7.5 10.5 30.55 7.72 2469 14
225/70R15 100T 560 A B STD OWL 6 - 7 6.5 9 27.68 6.97 1764 13.5
255/70R15 108T 560 A B STD OWL 6.5 - 8.5 7.5 10.3 29.09 7.95 2205 14
265/70R15 112T 560 A B STD OWL 7 - 9 8 10.7 29.65 8.27 2469 14
225/75R16 104T 560 A B STD OWL 6 - 7.5 6 8.6 29.13 6.38 1984 13.5
235/75R16 108T 560 A B STD OWL 6 - 8 6.5 9.3 29.72 6.73 2205 14
245/75R16 111T 560 A B STD OWL 6.5 - 8 7 9.6 30.31 7.05 2403 14
265/75R16 116T 560 A B STD OWL 7 - 9 7.5 10.5 31.57 7.72 2756 14
215/70R16 100T 560 A B STD OWL 5.5 - 7 6.5 8.7 27.72 6.89 1764 13.5
225/70R16 103T 560 A B STD OWL 6 - 7.5 6.5 9 28.66 6.97 1929 13.5
235/70R16 106T 560 A B STD OWL 6 - 8 7 9.4 28.82 7.4 2094 13.5
245/70R16 111T 560 A B XL OWL 6.5 - 8 7 9.8 29.45 7.64 2403 13.5
245/70R16 107T 560 A B STD OWL 6.5 - 8 7 9.8 29.45 7.64 2149 13.5
255/70R16 111T 560 A B STD OWL 6.5 - 8.5 7.5 10.2 30.04 7.95 2403 14
265/70R16 112T 560 A B STD OWL 7 - 9 8 10.8 30.39 8.27 2469 14
235/75R17 109T 560 A B STD OWL 6 - 8 6.5 9.3 30.75 6.85 2271 14
255/75R17 115T 560 A B STD OWL 6.5 - 8.5 7 10 31.97 7.44 2679 14
235/70R17 111T 560 A B XL BLK 6 - 8 7 9.5 30 7.44 2403 13.5
245/70R17 110T 560 A B STD OWL 6.5 - 8 7 9.7 30.47 7.72 2337 13.5
255/70R17 112T 560 A B STD OWL 6.5 - 8.5 7.5 10.2 31.18 7.91 2469 14
265/70R17 115T 560 A B STD OWL 7 - 9 8 10.7 31.42 8.27 2679 14
235/65R17 104T 560 A B STD OWL 6.5 - 8.5 7 9.5 29.21 7.52 1984 13
255/65R17 110T 560 A B STD OWL 7 - 9 7.5 10.1 30.16 8.19 2337 13
265/65R17 112T 560 A B STD OWL 7.5 - 9.5 8 10.6 30.59 8.5 2469 13
235/60R17 102T 560 A B STD OWL 6.5 - 8.5 7 9.6 28.31 7.64 1874 12.5
255/70R18 113T 560 A B STD BLK 6.5 - 8.5 7.5 10.2 32.13 8.07 2535 14
265/70R18 116T 560 A B STD OWL 7 - 9 8 10.7 32.64 8.39 2756 14
265/65R18 114T 560 A B STD OWL 7.5 - 9.5 8 10.7 31.54 8.54 2601 13
275/65R18 116T 560 A B STD OWL 7.5 - 9.5 8 11 32.13 8.74 2756 13
265/60R18 110T 560 A B STD OWL 7.5 - 9.5 8 10.7 30.55 8.62 2337 12.5
275/60R20 115T 560 A B STD OWL 7.5 - 9.5 8 10.9 33.03 8.86 2679 12.5
275/55R20 117T 560 A B XL OWL 7.5 - 9.5 8.5 10.9 31.93 9.13 2833 12.5
265/50R20 107T 560 A B STD OWL 7.5 - 9.5 8.5 10.9 30.51 8.78 2149 12
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 1 out of 5 by from Balance issues, defective tires, never Cooper again I got 5 of these for my Jeep in 285/70/17 and have had balancing issues from the start. One tire I have been told by 2 places that it is defective and can't be balanced, went to try road force balance and it wanted 17oz of weight! At least 2 others have a wobble in them and can't get it out as well. Tire place I got them from doesn't want to hear or do anything. Tread wear now at 35k miles is pretty good, but I can't wait to get these off my ride, sorry I wasted my money on these
Date published: 2017-08-26
Rated 5 out of 5 by from Liked them so well - I bought a second set... after 55k miles! 2005 1/2 ton Suburban Originally wanted the AT/W but these had come out and the salesman talked me into these. I pull occasionally (camper, boy scout trailers etc.) but most miles were just the vehicle. I wasn't faithful at getting rotations - one time it was 10K miles - had some wearing issues at about 25k to 30k miles. Just rotated them like manufacturer suggested..... ran them until the end of June.. looked at them and decided needed new tires before taking the boy scouts to summer camp (1,400 mile round trip - pulling a trailer loaded with 7 boys). I put another set of AT/3's on - good tire - great ice and snow traction up here in North Dakota. I have read the other reviews... people talk about wind noise.. these tires are quiet... they must be putting bigger tires than manufacturer specified... my new tires run so quiet I have driven 100 miles with the radio off just so I can enjoy the quiet!
Date published: 2017-08-18
Rated 5 out of 5 by from Frustratingly Good 255/65R17. 32-months and over 20,000 miles with minimal wear on my Jeep Commander 5.7 Quadradrive 2. Quiet on road and unflappable off-road. Run higher than OEM pressure of 38 psi as daily driver. In the dirt air down to 18 to 22 psi to tackle Eureka Dunes and a week in Death Valley including Steele Canyon, Hot Springs, Tea Kettle, Playa, Cerro Gordo, etc. Handles all terrain without issue; rocks, mud, sand, washboard, and loose scree. 1000s of miles off-road with no hiccups, wish I could post videos and photos. I have no issue with wear, if anything they're frustratingly long lasting as I'm anxious to move to a bigger size with a new suspension for clearance!
Date published: 2017-08-14
Rated 5 out of 5 by from Long lasting tough tire The best tire I have owned have 103,000 miles on them no flats. I work in the construction industry and have pulled several nails out of the tread with no leaks. I will be buying another set soon.
Date published: 2017-08-13
Rated 5 out of 5 by from Almost the perfect truck tire I bought this tire for my 2015 1500 Silverado. I did a level kit and put 285/55R20 tires on it. This tire is amazing! Sticks to the road better then my stock Wrangler SR-A's, Hydroplane resistance is far superior...truck just feels more stable in rain at speed. Living up here in northern New England...I really wish the tires could get the 3 Peak winter stamp. They are really good in the snow...but could be better in NE heavy wet snow.. Maybe more sipes cut into the tread
Date published: 2017-08-06
Rated 4 out of 5 by from As advertised balanced AT tire When I bought my truck used,it had 54k miles, had the dealer put a set of P275 60 R20s on. Had the truck almost 4 years and am at 102k on the odometer. Two tires are at the wear bars, other two have a bit more tread. Rotated the tires <10k intervals. Have increased it to every 4k last few times as the tread has worn down. I am planning on replacing in a few months as winter draws near. Tire has performed well over the life of the tires. Traction has been superb in wet/dry/snow. Tire is a 50k tire like most All Terrain. Prior set was a set of Firestone Destination AT and got about the same miles out of them. Am looking at the Cooper Discoverer SRX a 70k rated hwy tire, Cooper ATP, Hancock Dyna Pro AT, and perhaps Toyo AT2. Why can't a A/T tire be made to last up to 70k? Highway noise has increased now that two tires are at wear bars as you would expect. Guess I got the life out of the tire up to the warranty... I don't do much off highway driving other than some gravel travel at a minimum.
Date published: 2017-08-02
Rated 2 out of 5 by from Treadwear Sucks Traction Good Bought these in November 2016 this is july 2017 tires are at 9/32 12 k miles i always thought cooper were good tires Will Not Buy Another ! unless cooper makes it right 12 k out of tires is ridiculous i still have some to go but not long,my 2009 f-150 2wd i use to take care of my mother and need good traction and tread for winter.
Date published: 2017-07-29
Rated 5 out of 5 by from Great wear and traction; moderate noise I put 40k miles on these tires, and they still had more than half of their tread left (traded the car). They had way better traction than the Michelin's that came OEM. They also look great. That said, I dropped 1-2 MPG when I had these installed, and they were noisier than the OEM tires. I tried to manage and got some of the MPG back by keeping them around 38 PSI.
Date published: 2017-07-26
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Warranty

Standard Limited Warranty

60,000 Mile Treadwear Protection


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

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