Tests – · 1 test Owners 81 · 688 reviews
“Got some 225/75/16 Cooper Discoverer AT3 4s - Great fit on stock setup.”
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Discoverer AT3 4S leads, 77–73 Narrow edge
Both Amazon links then search this exact size.
TireWheelGuide may earn a commission from purchases made through these links.
Tests – · 1 test Owners 81 · 688 reviews
“Got some 225/75/16 Cooper Discoverer AT3 4s - Great fit on stock setup.”
Tests – · none yet Owners 75 · 4 reviews
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Discoverer AT3 4S | Discoverer A/T3 Sport |
|---|---|---|
| Reviews found online | 86 | 80 |
| Source | Discoverer AT3 4S | Discoverer A/T3 Sport |
|---|---|---|
| Reviews found online | 85 | 77 |
| Source | Discoverer AT3 4S | Discoverer A/T3 Sport |
|---|---|---|
| Reviews found online | 74 | 70 |
| Source | Discoverer AT3 4S | Discoverer A/T3 Sport |
|---|---|---|
| Reviews found online | 83 | 79 |
| Source | Discoverer AT3 4S | Discoverer A/T3 Sport |
|---|---|---|
| Reviews found online | 81 | – |
| Source | Discoverer AT3 4S | Discoverer A/T3 Sport |
|---|---|---|
| Professional tests (TWG score) | 71 | – |
| Reviews found online | 78 | 71 |
| Source | Discoverer AT3 4S | Discoverer A/T3 Sport |
|---|---|---|
| Reviews found online | 77 | 77 |
| Category | Cooper Discoverer AT3 4S | Cooper Discoverer A/T3 Sport |
|---|---|---|
| Relative Score | 77 | 73 |
| Dry | 80 | 76 |
| Wet | 81 | 75 |
| Snow | 73 | 70 |
| Comfort | 76 | 74 |
| Noise | 73 | – |
| Treadwear | 74 | 69 |
| Handling | 77 | 77 |
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.
Neither tire has a score here yet, so this weight changes nothing.
Discoverer AT3 4S
Discoverer A/T3 Sport
Only categories both tires have data for count toward the headline score.
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
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
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Cooper Discoverer AT3 4S | B · Cooper Discoverer A/T3 Sport |
|---|---|---|
| Category | All Season | All Terrain and Off Road All Season tire |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Sizes available | 3 | — |
| Rim diameters | 16″ – 20″ | — |
| Tread depth | 12 - 14/32″ | — |
| UTQG | 620 A B | — |
| Treadwear warranty | 65,000 mi | — |
| Sidewall | Black Side Wall - Raised Outline White Lettering | — |
| Max pressure | 44 - 50 psi | — |
Cooper Discoverer AT3 4S
Cooper Discoverer A/T3 Sport
Winner: Cooper Discoverer AT3 4S — better wet, treadwear and dry. It leads or ties in every category we score.
Cooper Discoverer AT3 4S scores 81 vs 75 on wet.
Cooper Discoverer AT3 4S scores 74 vs 69 on treadwear.
Cooper Discoverer AT3 4S scores 80 vs 76 on dry.
Cooper Discoverer AT3 4S scores 73 vs 70 on snow.
TireWheelGuide may earn a commission from purchases made through these links.
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.