Tests – · 1 test Owners 84 · 688 reviews
Best test result: #5 of 18 in 2022 Consumer Reports All Terrain Truck Tires (tested tread life (miles))
“Got some 225/75/16 Cooper Discoverer AT3 4s - Great fit on stock setup.”
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 1 + 0 road tests and 688 + 31 owner reviews. How we score
Discoverer AT3 4S is ahead, 80–62
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Tests – · 1 test Owners 84 · 688 reviews
Best test result: #5 of 18 in 2022 Consumer Reports All Terrain Truck Tires (tested tread life (miles))
“Got some 225/75/16 Cooper Discoverer AT3 4s - Great fit on stock setup.”
Tests – · none yet Owners 59 · 31 reviews
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | Discoverer AT3 4S | Wrangler Fortitude HT |
|---|---|---|
| Professional tests (TWG score) | ≈ 77 (est.) | ≈ 63 (est.) |
| Reviews found online | 89 | 57 |
Discoverer AT3 4S: 60% × 76.8 (est.) + 40% × 88.8 = 82
Wrangler Fortitude HT: 60% × 63.4 (est.) + 40% × 56.9 = 61
No road tests of dry for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
No road tests of dry for Wrangler Fortitude HT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
| Source | Discoverer AT3 4S | Wrangler Fortitude HT |
|---|---|---|
| Professional tests (TWG score) | ≈ 82 (est.) | ≈ 62 (est.) |
| Reviews found online | 91 | 55 |
Discoverer AT3 4S: 60% × 81.9 (est.) + 40% × 90.9 = 86
Wrangler Fortitude HT: 60% × 62.2 (est.) + 40% × 55.3 = 59
No road tests of wet for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
No road tests of wet for Wrangler Fortitude HT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
| Source | Discoverer AT3 4S | Wrangler Fortitude HT |
|---|---|---|
| Professional tests (TWG score) | ≈ 72 (est.) | ≈ 68 (est.) |
| Reviews found online | 75 | 63 |
Discoverer AT3 4S: 60% × 72.4 (est.) + 40% × 75 = 73
Wrangler Fortitude HT: 60% × 68 (est.) + 40% × 63.4 = 66
No road tests of snow for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).
No road tests of snow for Wrangler Fortitude HT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).
| Source | Discoverer AT3 4S | Wrangler Fortitude HT |
|---|---|---|
| Professional tests (TWG score) | ≈ 72 (est.) | ≈ 67 (est.) |
| Reviews found online | 86 | 58 |
Discoverer AT3 4S: 40% × 72.2 (est.) + 60% × 85.8 = 80
Wrangler Fortitude HT: 40% × 67.1 (est.) + 60% × 58.2 = 62
No road tests of comfort for Discoverer AT3 4S or Wrangler Fortitude HT. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
| Source | Discoverer AT3 4S | Wrangler Fortitude HT |
|---|---|---|
| Professional tests (TWG score) | ≈ 67 (est.) | ≈ 67 (est.) |
| Reviews found online | 84 | 66 |
Discoverer AT3 4S: 60% × 66.6 (est.) + 40% × 83.5 = 73
Wrangler Fortitude HT: 60% × 66.6 (est.) + 40% × 65.6 = 66
No road tests of noise for Discoverer AT3 4S or Wrangler Fortitude HT. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.
| Source | Discoverer AT3 4S | Wrangler Fortitude HT |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 71 | ≈ 65 (est.) |
| Reviews found online | 80 | 62 |
Discoverer AT3 4S: 60% × 71.1 + 40% × 79.6 = 75
Wrangler Fortitude HT: 60% × 64.6 (est.) + 40% × 61.8 = 63
No road tests of treadwear for Wrangler Fortitude HT. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
| Source | Discoverer AT3 4S | Wrangler Fortitude HT |
|---|---|---|
| Reviews found online | 81 | 56 |
| Category | Cooper Discoverer AT3 4S | Goodyear Wrangler Fortitude HT |
|---|---|---|
| Relative Score | 80 | 62 |
| Dry | 82 | 61 |
| Wet | 86 | 59 |
| Snow | 73 | 66 |
| Comfort | 80 | 62 |
| Noise | 73 | 66 |
| Treadwear | 75 | 63 |
| Handling (owners) | 81 | 56 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.
Discoverer AT3 4S
Wrangler Fortitude HT
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
From Reddit, forums and review threads. Not part of our score
Community sentiment for the Cooper Discoverer AT3 4S is predominantly positive, with drivers praising its quiet highway ride, strong traction across snow, rain, and dry pavement, and appealing appearance. Several owners note that while it handles light off-road duties and daily driving well, tread life occasionally falls short of mileage expectations. In addition, multiple posts highlight frustration and concern regarding availability and recent discontinuation across various sizes.
“Suggestions for replacing AT tires on SUV I have an expedition, and used to need AT tires because of where I used to live and work, but now find I don't need them. I was running some Cooper Discoverer AT3 4S. Absolutely fantastic tires, but now I want to get some all weather since its mostly suburban and highway driving. We get a lot of snow so that's important to me as well. Any suggestions or real world advice? Thanks!”
“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.”
“Got some 225/75/16 Cooper Discoverer AT3 4s - Great fit on stock setup.”
Based on 27 community posts
We haven't collected enough community discussion about this tire yet.
| Attribute | A · Cooper Discoverer AT3 4S | B · Goodyear Wrangler Fortitude HT |
|---|---|---|
| Category | All-Terrain tire | Premium Touring All Season tire |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Sizes available | 14 | 9 |
| Rim diameters | 15″ – 22″ | 16″ – 18″ |
| Tread depth | 12 - 14/32″ | 10 - 15/32″ |
| UTQG | 620 A B | 680 A B |
| Treadwear warranty | 65,000 mi | — |
| Sidewall | Black Side Wall - Raised Outline White Lettering | Black Side Wall - Vertical Serrated Band |
| Max pressure | 44 - 50 psi | 50 - 83 psi |
| Sizes in common | 1 | 1 |
Cooper Discoverer AT3 4S
Goodyear Wrangler Fortitude HT
Winner: Cooper Discoverer AT3 4S — better wet, handling and dry. It leads or ties in every category we score.
Cooper Discoverer AT3 4S scores 86 vs 59 on wet.
Cooper Discoverer AT3 4S scores 81 vs 56 on handling.
Cooper Discoverer AT3 4S scores 82 vs 61 on dry.
Cooper Discoverer AT3 4S scores 80 vs 62 on comfort.
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Cooper Discoverer AT3 4S, 86 vs 59 on our wet score.
Cooper Discoverer AT3 4S, 82 vs 61 on our dry score.
Cooper Discoverer AT3 4S, 73 vs 66 on our snow score.
Cooper Discoverer AT3 4S, 73 vs 66 on our noise score.
Cooper Discoverer AT3 4S, 80 vs 62 on our comfort score.
Cooper Discoverer AT3 4S, 75 vs 63 on our treadwear score.
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.
Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.
Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology