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Cooper Discoverer AT3 4S vs Cooper WeatherMaster WSC — Compared

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

Discoverer AT3 4S is ahead, 77–72

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Tire ACooper

Discoverer AT3 4S

All Season

Tests – · 1 test Owners 81 · 688 reviews

Best test result: #5 of 18 in 2022 Consumer Reports All Terrain Truck Tires (overall ranking)

“Quote: Originally Posted by ArizonaF1Fiddy I went with the Cooper Discoverer AT3 4s (275/65/18). The Michelin Primacy XC were on there when I purchased and they were terrible. I like the looks of the Coopers...the ride is much more controlled and a bit softer over broken surfaces. They do have some slip off the line of you give it full throttle real similar to the XCs. I was looking for an AT that would be great at hooking up in dry weather but probably not gong to find an AT that is sticky enough. They're brand-new so I'll give an update after a few hundred miles or so (I don't put a lot of miles so it'll take time). Thanks to the Forum for the info! This looks nice!”

Tire BCooper

WeatherMaster WSC

Winter

Tests 71 · 1 test Owners 74 · 13 reviews

Best test result: #11 of 9 in 2018 Autofil Studdable Winter Tire Test R16 (overall ranking)

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 +8
    70
    Why this score
    SourceDiscoverer AT3 4SWeatherMaster WSC
    Professional tests (TWG score)–69
    Reviews found online8472
  2. 82

    Wet

    Discoverer AT3 4S +5
    77
    Why this score
    SourceDiscoverer AT3 4SWeatherMaster WSC
    Professional tests (TWG score)–77
    Reviews found online8678
  3. 72

    Snow

    Discoverer AT3 4S +1
    71
    Why this score
    SourceDiscoverer AT3 4SWeatherMaster WSC
    Professional tests (TWG score)–67
    Reviews found online7477
  4. 76

    Comfort

    Discoverer AT3 4S +7
    69
    Why this score
    SourceDiscoverer AT3 4SWeatherMaster WSC
    Reviews found online8369
  5. 72

    Noise

    No comparison
    –
    Why this score
    SourceDiscoverer AT3 4SWeatherMaster WSC
    Reviews found online81–
  6. 73

    Treadwear

    Discoverer AT3 4S +3
    70
    Why this score
    SourceDiscoverer AT3 4SWeatherMaster WSC
    Professional tests (TWG score)71–
    Reviews found online7773
  7. 77

    Handling

    Discoverer AT3 4S +5
    72
    Why this score
    SourceDiscoverer AT3 4SWeatherMaster WSC
    Reviews found online7772
Scores at a glance
CategoryCooper Discoverer AT3 4SCooper WeatherMaster WSC
Relative Score 77 72
Dry 78 70
Wet 82 77
Snow 72 71
Comfort 76 69
Noise 72 –
Treadwear 73 70
Handling 77 72

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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Neither tire has a score here yet, so this weight changes nothing.

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Neutral
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Recomputed
Headline score

Discoverer AT3 4S

WeatherMaster WSC

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

The professional test results behind the scores

Each result is shown as % of the best tire in that test. “Same test” rows are the strictest comparison: both tires were measured side by side.

DisciplineCategoryDiscoverer AT3 4SWeatherMaster WSCΔBoth?
Overall Ranking Overall 76% #5/18 · 2022 Consumer Reports All Terrain Truck Tires 0% #11/9 · 2018 Autofil Studdable Winter Tire Test R16 +76.5 Different tests

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 WeatherMaster WSC

Pros

  • Exceptional traction and grip in deep snow, packed snow, and slush
  • Strong performance on ice, especially when studded
  • Great value and reasonable price point compared to competing brands

Cons

  • Increased road noise, particularly as temperatures rise
  • Stiffer ride quality that can transmit more road bumps into the cabin
  • Reduced performance, increased squirm, and accelerated wear when driven in warm summer or dry conditions
All owner themes in the WeatherMaster WSC review

What real owners are saying

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

Tire A

Cooper Discoverer AT3 4S

Positive

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.

r/DubaiPetrolHeads ·1 upvote ·2026-01-20

“Cooper Discoverer AT3 4s I am struggling to find Cooper Discoverer AT3 4s tyres with size 265/70/17. There seemed to be an acute shortage in the market. I am not keen on BF Goodrich due to the weight and price. I shall appreciate it if anyone with reliable leads for Cooper tyres. What else do you recommend if Cooper is just not realistically available? I can wait till March before I need to get my car tested for renewal of registration. TIA.”
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”
bobistheoilguy.com ·5 upvotes ·2020-09-02

“I went with Cooper Discoverer AT3 4S for the Touareg and couldn't be happier. Made in the USA to boot!”
Top themes
#Snow and wet traction#Quiet highway ride#Tread life and longevity#Discontinuation and availability#Comfortable ride quality#Mild off-road performance

Based on 27 community posts

Tire B

Cooper WeatherMaster WSC

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

Specs side by side

Attribute A · Cooper Discoverer AT3 4S B · Cooper WeatherMaster WSC
CategoryAll SeasonWinter
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

Cooper WeatherMaster WSC

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

Pick tire A You want the most grip on dry roads

Cooper Discoverer AT3 4S scores 78 vs 70 on dry.

Pick tire A You want the most comfortable ride

Cooper Discoverer AT3 4S scores 76 vs 69 on comfort.

Pick tire A Your priority is wet-weather safety

Cooper Discoverer AT3 4S scores 82 vs 77 on wet.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer AT3 4S scores 77 vs 72 on handling.

Tire A · Cooper Discoverer AT3 4S
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Tire B · Cooper WeatherMaster WSC
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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