Tests – · none yet Owners 80 · 788 reviews
“New shoes this week, Cooper Discoverer At3 XLT. I’m really impressed so far.”
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Too close to call: Discoverer AT3 XLT and Discoverer AT3 4S are level at 76.
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Tests – · none yet Owners 80 · 788 reviews
“New shoes this week, Cooper Discoverer At3 XLT. I’m really impressed so far.”
Tests – · 1 test Owners 78 · 641 reviews
“Got some 225/75/16 Cooper Discoverer AT3 4s - Great fit on stock setup.”
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Discoverer AT3 XLT | Discoverer AT3 4S |
|---|---|---|
| Reviews found online | 85 | 82 |
| Source | Discoverer AT3 XLT | Discoverer AT3 4S |
|---|---|---|
| Reviews found online | 85 | 85 |
| Source | Discoverer AT3 XLT | Discoverer AT3 4S |
|---|---|---|
| Reviews found online | 70 | 73 |
| Source | Discoverer AT3 XLT | Discoverer AT3 4S |
|---|---|---|
| Reviews found online | 79 | 79 |
| Source | Discoverer AT3 XLT | Discoverer AT3 4S |
|---|---|---|
| Reviews found online | 79 | 77 |
| Source | Discoverer AT3 XLT | Discoverer AT3 4S |
|---|---|---|
| Professional tests (TWG score) | – | 71 |
| Reviews found online | 76 | 72 |
| Source | Discoverer AT3 XLT | Discoverer AT3 4S |
|---|---|---|
| Reviews found online | 79 | 78 |
| Category | Cooper Discoverer AT3 XLT | Cooper Discoverer AT3 4S |
|---|---|---|
| Relative Score | 76 | 76 |
| Dry | 79 | 77 |
| Wet | 81 | 81 |
| Snow | 70 | 72 |
| Comfort | 74 | 74 |
| Noise | 72 | 71 |
| Treadwear | 72 | 71 |
| Handling | 79 | 78 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Discoverer AT3 XLT
Discoverer AT3 4S
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
Community members express strong satisfaction with the Cooper Discoverer AT3 XLT, highlighting its smooth ride quality, impressive comfort, and quietness compared to competing all-terrain tires like BFG KO2 and Toyo Open Country A/T II. Users also appreciate the solid value when purchased through online retailers during holiday sales, though questions occasionally arise regarding specific winter rating designations.
“Put some new tires on the XD today. Cooper Discoverer AT3 XLT in 275/70R18. I usually run BFG KO2s on my trucks but wanted to try something different this time.”
“Cooper Discoverer AT3 XLT Picked up a set of Discoverer AT3 XLT from simple tire. With the 4th of July discounts all 4 were under 1k before taxes. I had the AT3 4S on a previous ram and they held up so I’m expecting good things here.”
“New Cooper Discoverer AT3 XLT 275/75R20 these ride way better than my old Open Country A/T II”
Based on 7 community posts
The Cooper Discoverer AT3 4S is widely praised by the community for its quiet and comfortable highway ride, excellent wet and snow traction, and solid fuel efficiency. Drivers appreciate its balance of rugged aesthetics and daily drivability, though recent discussions highlight growing concerns over reported product discontinuations and sizing shortages.
“They Discontinued My Tire! I've been using Cooper Discoverer AT3 4s forever. For some reason Cooper, in it's infinite wisdom, has discontinued the 265 75r 16 size so I need a replacment. I'm in Southern California and do quite a bit of wildlife habitat restoration work in dry desert conditions. This involves lots and lots of highway miles as well as dirt roads from good to, on what planet is this a road. Occasionally we are even driving up dry washes, trying to avoid all the nasty sidewall eating rocks and spiny bushes. The tread on the discoverer is pretty modest and quite on the highway but when aired downed, runs well in sandy conditions. They even work pretty well in rocky conditions. The other thing is they wear really well. Ive got 60k+ miles on my current set and can squeeze another 10k out of them if I have to. So to the point, Im looking for suggestions for a replacment. Any help would be greatly appreciated.”
“New tires: Cooper Discoverer AT3 4S Needed a 3PMSF tire and these Coopers edged out the Wildpeak AT3Ws based on wear rating and highway performance. Also, Cooper has a promo right now for a $70 mail in rebate. MPG has been about the same, maybe slightly better. Visually, I like them, more rugged than the stock Falkens. Highway and forest road driving has been solid. Stock size, 215/65R17, on a 2020 TH: Read more”
“New tire advice from people who know about cooper Ive had these discoverer at3 4s since 2022. I need to replace them and ive heard they stopped making them. Before this it had discoverer RTX and discoverer LSX tires. The ones people are saying kinda took over are the road and trail AT but they look way more offroad styled then the at3s did. I dont drive offroad but i dont want strictly highway tires. I do drive on the highway though and haul a bit does cooper have anything else or is the road and trail AT a good replacement? Read more”
Based on 15 community posts
| Attribute | A · Cooper Discoverer AT3 XLT | B · Cooper Discoverer AT3 4S |
|---|---|---|
| Category | Premium Touring All Season tire | Premium Touring All Season tire |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Sizes available | 3 | 2 |
| Rim diameters | 16″ – 20″ | 16″ – 20″ |
| Tread depth | 16 - 18/32″ | 12 - 14/32″ |
| UTQG | — | 620 A B |
| Treadwear warranty | 60,000 mi | 65,000 mi |
| Sidewall | Black Side Wall - Raised White Lettering | Black Side Wall - Raised Outline White Lettering |
| Max pressure | 35 - 80 psi | 44 - 50 psi |
Cooper Discoverer AT3 XLT
Cooper Discoverer AT3 4S
Too close to call: Cooper Discoverer AT3 XLT and Cooper Discoverer AT3 4S are within 2 points overall.
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Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.
Community buzz from Reddit and forums is shown for context only — it never changes the score.