Head-to-head Updated

Cooper Discoverer A/T3 Sport vs Cooper Discoverer AT3 4S — Compared

Relative Score (0–100): 60% professional tests, 40% owner reviews.

Discoverer AT3 4S leads, 77–73 Narrow edge

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Tire BCooper

Discoverer AT3 4S

All Season

Tests – · 1 test Owners 81 · 688 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.

  1. 76

    Dry

    Discoverer AT3 4S +4
    80
    Why this score
    SourceDiscoverer A/T3 SportDiscoverer AT3 4S
    Reviews found online8086
  2. 75

    Wet

    Discoverer AT3 4S +6
    81
    Why this score
    SourceDiscoverer A/T3 SportDiscoverer AT3 4S
    Reviews found online7785
  3. 70

    Snow

    Discoverer AT3 4S +3
    73
    Why this score
    SourceDiscoverer A/T3 SportDiscoverer AT3 4S
    Reviews found online7074
  4. 74

    Comfort

    Discoverer AT3 4S +2
    76
    Why this score
    SourceDiscoverer A/T3 SportDiscoverer AT3 4S
    Reviews found online7983
  5. –

    Noise

    No comparison
    73
    Why this score
    SourceDiscoverer A/T3 SportDiscoverer AT3 4S
    Reviews found online–81
  6. 69

    Treadwear

    Discoverer AT3 4S +5
    74
    Why this score
    SourceDiscoverer A/T3 SportDiscoverer AT3 4S
    Professional tests (TWG score)–71
    Reviews found online7178
  7. 77

    Handling

    Level
    77
    Why this score
    SourceDiscoverer A/T3 SportDiscoverer AT3 4S
    Reviews found online7777
Scores at a glance
Cooper Discoverer A/T3 Sport vs Cooper Discoverer AT3 4S: scores by category (0–100)
CategoryCooper Discoverer A/T3 SportCooper Discoverer AT3 4S
Relative Score 73 77
Dry 76 80
Wet 75 81
Snow 70 73
Comfort 74 76
Noise – 73
Treadwear 69 74
Handling 77 77

Higher is better. The Relative Score follows your weights below; category scores do not change.

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Recomputed
Headline score

Discoverer A/T3 Sport

Discoverer AT3 4S

Only categories both tires have data for count toward the headline score.

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Discoverer A/T3 Sport

Pros

  • Exceptional ride comfort on long trips and asphalt
  • Very low fuel consumption compared to other tires
  • Strong dry grip and above-average on-road performance

Cons

  • Snow performance decreases significantly after the first year
  • Slight oversteer tendencies on wet roundabouts
  • Slipping tendencies in wet mud conditions
All owner themes in the Discoverer A/T3 Sport review

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
All owner themes in the Discoverer AT3 4S review

What real owners are saying

From Reddit, forums and review threads. Not part of our score

Tire A

Cooper Discoverer A/T3 Sport

We haven't collected enough community discussion about this tire yet.

Tire B

Cooper Discoverer AT3 4S

Positive

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.

r/4x4 ·12 upvotes ·2026-07-08

“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.”

r/JeepRenegade ·6 upvotes ·2020-08-24

“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”

r/tires ·3 upvotes ·2026-05-26

“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”

Top themes
#Highway performance and low noise#Wet and snow traction#Tread wear and longevity#Availability and discontinuation rumors#Light off-road capability#Fuel economy and MPG

Based on 15 community posts

Specs side by side

Attribute A · Cooper Discoverer A/T3 Sport B · Cooper Discoverer AT3 4S
CategoryAll Terrain and Off Road All Season tireAll Season
Vehicle typeSUV and 4x4SUV 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

Which one should you actually buy?

Cooper Discoverer A/T3 Sport

Cooper Discoverer AT3 4S

Winner: Cooper Discoverer AT3 4S — better wet, treadwear and dry. It leads or ties in every category we score.

Pick tire B Your priority is wet-weather safety

Cooper Discoverer AT3 4S scores 81 vs 75 on wet.

Pick tire B You want the longest tread life

Cooper Discoverer AT3 4S scores 74 vs 69 on treadwear.

Pick tire B You want the most grip on dry roads

Cooper Discoverer AT3 4S scores 80 vs 76 on dry.

Pick tire B You drive through snowy winters

Cooper Discoverer AT3 4S scores 73 vs 70 on snow.

Tire A · Cooper Discoverer A/T3 Sport
Tire B · Cooper Discoverer AT3 4S

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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.

77

Narrow edge

Discoverer AT3 4S

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