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Cooper Discoverer AT3 4S vs Pirelli Scorpion A/T — Compared

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

Discoverer AT3 4S is ahead, 77–64

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Tire BPirelli

Scorpion A/T

All Season All Terrain and Off Road tires

Tests – · none yet Owners 61 · 4 reviews

Category by category

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

  1. 78

    Dry

    Discoverer AT3 4S +13
    65
    Why this score
    SourceDiscoverer AT3 4SScorpion A/T
    Reviews found online8464
  2. 82

    Wet

    Discoverer AT3 4S +15
    67
    Why this score
    SourceDiscoverer AT3 4SScorpion A/T
    Reviews found online8665
  3. 72

    Snow

    Discoverer AT3 4S +18
    54
    Why this score
    SourceDiscoverer AT3 4SScorpion A/T
    Reviews found online7343
  4. 76

    Comfort

    Discoverer AT3 4S +10
    66
    Why this score
    SourceDiscoverer AT3 4SScorpion A/T
    Reviews found online8363
  5. 72

    Noise

    No comparison
    –
    Why this score
    SourceDiscoverer AT3 4SScorpion A/T
    Reviews found online81–
  6. 73

    Treadwear

    Discoverer AT3 4S +10
    63
    Why this score
    SourceDiscoverer AT3 4SScorpion A/T
    Professional tests (TWG score)71–
    Reviews found online7762
  7. 77

    Handling

    Discoverer AT3 4S +12
    65
    Why this score
    SourceDiscoverer AT3 4SScorpion A/T
    Reviews found online7765
Scores at a glance
CategoryCooper Discoverer AT3 4SPirelli Scorpion A/T
Relative Score 77 64
Dry 78 65
Wet 82 67
Snow 72 54
Comfort 76 66
Noise 72 –
Treadwear 73 63
Handling 77 65

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.

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Recomputed
Headline score

Discoverer AT3 4S

Scorpion A/T

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 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

Tire B Scorpion A/T

Pros

  • Excellent wet-weather traction and cornering stability
  • Noticeable improvement in ride comfort and noise levels
  • Strong off-road capability

Cons

  • Reports of premature dry rotting in certain climates
  • Inconsistent longevity across different usage scenarios
  • Occasional reports of increased road noise
All owner themes in the Scorpion A/T review

What real owners are saying

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

Tire A

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/3rdGen4Runner ·7 upvotes ·2021-07-25

“02 SR5 - New Cooper Discoverer AT3 4S P235/75R15 - beautiful tire - excellent handling/feel”
r/4Runner ·2 upvotes ·2023-10-23

“Tire Question: Michelin Defenders or Cooper Discoverer AT3 4S I have a TRD ORP and want to replace the crappy stock Dunlops. Almost all my driving is on road so looking at the Michelin Defenders or the Cooper AT3 4S in the stock size. I prefer the looks of the coopers but am I going to notice any decrease in wet performance, road noise or mpg compared to the Michelins?”
r/tires ·1 upvote ·2026-09-08

“Tire Recs for F150 - mostly highway and some muddy field edges - Cooper or Falken? I mostly put highway miles on my 2011 F150 but Im a bow hunter so October and November I spend a decent amount of time driving on field edges to get to hinting spots. When its wet, these field edges get pretty sloppy. I have Cooper Discoverer AT3 4S currently. While Ive never gotten stuck, there's been a few sweaty moments where it felt close. These have been great on road tires with low road noise, great fuel efficiency, and impressive handling in wet, dry, and snow. I want to maintain on road performance as thats 90% of my use, but curious if there are any thoughts on the new Cooper Discoverer Road + Trail AT, vs Falken Rubitrek, or Falken Wildpeak AT3 or AT4. Im leaning going Coopers again and hoping for the best on those occasional muddy mornings. Let me know thoughts and experiences. 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

Tire B

Pirelli Scorpion A/T

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

Specs side by side

Attribute A · Cooper Discoverer AT3 4S B · Pirelli Scorpion A/T
CategoryAll SeasonAll Season All Terrain and Off Road tires
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available14—
Rim diameters15″ – 22″—
Tread depth12 - 14/32″—
UTQG620 A B—
Treadwear warranty65,000 mi—
SidewallBlack Side Wall - Raised Outline White Lettering—
Max pressure44 - 50 psi—

Which one should you actually buy?

Cooper Discoverer AT3 4S

Pirelli Scorpion A/T

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

Pick tire A You drive through snowy winters

Cooper Discoverer AT3 4S scores 72 vs 54 on snow.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer AT3 4S scores 82 vs 67 on wet.

Pick tire A You want the most grip on dry roads

Cooper Discoverer AT3 4S scores 78 vs 65 on dry.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer AT3 4S scores 77 vs 65 on handling.

Tire A · Cooper Discoverer AT3 4S
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Tire B · Pirelli Scorpion A/T
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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

Leads

Discoverer AT3 4S

Amazon