Head-to-head Updated

Cooper Discoverer AT3 LT vs Cooper Discoverer AT3 4S — Compared

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

Discoverer AT3 4S leads, 76–74 Narrow edge

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Tire BCooper

Discoverer AT3 4S

All Season

Tests – · 1 test Owners 81 · 688 reviews

“New tire day. Cooper Discoverer AT3 4S. So far so good. They ride great and they’re really quiet.”

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 77

    Dry

    Discoverer AT3 4S +1
    78
    Why this score
    SourceDiscoverer AT3 LTDiscoverer AT3 4S
    Reviews found online8384
  2. 79

    Wet

    Discoverer AT3 4S +3
    82
    Why this score
    SourceDiscoverer AT3 LTDiscoverer AT3 4S
    Reviews found online8286
  3. 71

    Snow

    Discoverer AT3 4S +1
    72
    Why this score
    SourceDiscoverer AT3 LTDiscoverer AT3 4S
    Reviews found online7273
  4. 72

    Comfort

    Discoverer AT3 4S +4
    76
    Why this score
    SourceDiscoverer AT3 LTDiscoverer AT3 4S
    Reviews found online7583
  5. 71

    Noise

    Discoverer AT3 4S +1
    72
    Why this score
    SourceDiscoverer AT3 LTDiscoverer AT3 4S
    Reviews found online7881
  6. 71

    Treadwear

    Discoverer AT3 4S +2
    73
    Why this score
    SourceDiscoverer AT3 LTDiscoverer AT3 4S
    Professional tests (TWG score)–71
    Reviews found online7477
  7. 70

    Handling

    Discoverer AT3 4S +7
    77
    Why this score
    SourceDiscoverer AT3 LTDiscoverer AT3 4S
    Reviews found online7077
Scores at a glance
Cooper Discoverer AT3 LT vs Cooper Discoverer AT3 4S: scores by category (0–100)
CategoryCooper Discoverer AT3 LTCooper Discoverer AT3 4S
Relative Score 74 76
Dry 77 78
Wet 79 82
Snow 71 72
Comfort 72 76
Noise 71 72
Treadwear 71 73
Handling 70 77

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

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Headline score

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
All owner themes in the Discoverer AT3 LT 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 AT3 LT

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.

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 AT3 LT B · Cooper Discoverer AT3 4S
CategoryPremium Touring All Season tireAll Season
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available93
Rim diameters16″ – 18″16″ – 20″
Tread depth16 - 17/32″12 - 14/32″
UTQG—620 A B
Treadwear warranty60,000 mi65,000 mi
SidewallBlack Side Wall - Raised Outline White LetteringBlack Side Wall - Raised Outline White Lettering
Max pressure50 - 80 psi44 - 50 psi

Which one should you actually buy?

Cooper Discoverer AT3 LT

Cooper Discoverer AT3 4S

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

Pick tire B You enjoy sharp, responsive handling

Cooper Discoverer AT3 4S scores 77 vs 70 on handling.

Pick tire B You want the most comfortable ride

Cooper Discoverer AT3 4S scores 76 vs 72 on comfort.

Pick tire B Your priority is wet-weather safety

Cooper Discoverer AT3 4S scores 82 vs 79 on wet.

Tire A · Cooper Discoverer AT3 LT
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.

76

Narrow edge

Discoverer AT3 4S

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