Tests – · none yet Owners 78 · 249 reviews
Cooper Discoverer AT3 LT vs Cooper Discoverer AT3 4S — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Too close to call: Discoverer AT3 LT and Discoverer AT3 4S are level at 75.
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Tests – · 1 test Owners 78 · 641 reviews
“Got some 225/75/16 Cooper Discoverer AT3 4s - Great fit on stock setup.”
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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78
Dry
Discoverer AT3 LT +276Why this score
Source Discoverer AT3 LT Discoverer AT3 4S Reviews found online 83 80 -
80
Wet
Level80Why this score
Source Discoverer AT3 LT Discoverer AT3 4S Reviews found online 83 84 -
72
Snow
Level72Why this score
Source Discoverer AT3 LT Discoverer AT3 4S Reviews found online 72 74 -
72
Comfort
Discoverer AT3 4S +274Why this score
Source Discoverer AT3 LT Discoverer AT3 4S Reviews found online 75 78 -
71
Noise
Level71Why this score
Source Discoverer AT3 LT Discoverer AT3 4S Reviews found online 77 77 -
71
Treadwear
Discoverer AT3 4S +172Why this score
Source Discoverer AT3 LT Discoverer AT3 4S Professional tests (TWG score) – 71 Reviews found online 75 73 -
72
Handling
Discoverer AT3 4S +476Why this score
Source Discoverer AT3 LT Discoverer AT3 4S Reviews found online 72 76
Scores at a glance
| Category | Cooper Discoverer AT3 LT | Cooper Discoverer AT3 4S |
|---|---|---|
| Relative Score | 75 | 75 |
| Dry | 78 | 76 |
| Wet | 80 | 80 |
| Snow | 72 | 72 |
| Comfort | 72 | 74 |
| Noise | 71 | 71 |
| Treadwear | 71 | 72 |
| Handling | 72 | 76 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Discoverer AT3 LT
Discoverer AT3 4S
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Discoverer AT3 LT
Pros
- Excellent towing stability with minimal sidewall flex under heavy loads
- Surprisingly quiet and smooth on the highway for an all-terrain tire
- Strong durability and wear resistance on rough gravel, rock, and dirt roads
Cons
- Subpar performance in heavy snow, ice, or deep mud for some users
- Occasional reports of balancing difficulties or initial cold-weather tire thumping
- Isolated incidents of sidewall splitting or premature wear
Tire B Discoverer AT3 4S
Pros
- Exceptionally quiet and smooth on-road ride compared to typical all-terrain tires
- Superb traction in wet, rainy, and deep winter snow conditions
- Strong value and competitive pricing relative to performance and lifespan
Cons
- Potential for accelerated tread wear under heavy off-road use or demanding mountain driving
- Occasional reports of balancing issues or out-of-round tires requiring multiple adjustments
- Minor fuel economy drop or increased rolling resistance when switching from standard highway tires
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Cooper Discoverer AT3 LT
We haven't collected enough community discussion about this tire yet.
Cooper Discoverer AT3 4S
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
Specs side by side
| Attribute | A · Cooper Discoverer AT3 LT | 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 | 9 | 2 |
| Rim diameters | 16″ – 18″ | 16″ – 20″ |
| Tread depth | 16 - 17/32″ | 12 - 14/32″ |
| UTQG | — | 620 A B |
| Treadwear warranty | 60,000 mi | 65,000 mi |
| Sidewall | Black Side Wall - Raised Outline White Lettering | Black Side Wall - Raised Outline White Lettering |
| Max pressure | 50 - 80 psi | 44 - 50 psi |
Which one should you actually buy?
Cooper Discoverer AT3 LT
Cooper Discoverer AT3 4S
Too close to call: Cooper Discoverer AT3 LT and Cooper Discoverer AT3 4S are within 2 points overall. Cooper Discoverer AT3 4S is stronger on handling.
Cooper Discoverer AT3 4S scores 76 vs 72 on handling.
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How do we compare tires?
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.