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Cooper Discoverer AT3 4S vs Yokohama Geolander A/T S — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 1 + 0 road tests and 688 + 0 owner reviews. How we score

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Cooper Discoverer AT3 4S
Tire ACooper

Discoverer AT3 4S

All-Terrain tire

± 7

Tests – · 1 test Owners 84 · 688 reviews

Best test result: #5 of 18 in 2022 Consumer Reports All Terrain Truck Tires (tested tread life (miles))

“Got some 225/75/16 Cooper Discoverer AT3 4s - Great fit on stock setup.”

Yokohama Geolander A/T S
Tire BYokohama

Geolander A/T S

All Season All Terrain and Off Road tires

Tests – · none yet Owners – · none yet

Category by category

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

  1. 82

    Dry

    No comparison
    –
    Why this score
    SourceDiscoverer AT3 4SGeolander A/T S
    Professional tests (TWG score)≈ 77 (est.)–
    Reviews found online89–

    Discoverer AT3 4S: 60% × 76.8 (est.) + 40% × 88.8 = 82

    No road tests of dry for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).

  2. 85

    Wet

    No comparison
    –
    Why this score
    SourceDiscoverer AT3 4SGeolander A/T S
    Professional tests (TWG score)≈ 82 (est.)–
    Reviews found online91–

    Discoverer AT3 4S: 60% × 81.8 (est.) + 40% × 90.7 = 85

    No road tests of wet for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. 73

    Snow

    No comparison
    –
    Why this score
    SourceDiscoverer AT3 4SGeolander A/T S
    Professional tests (TWG score)≈ 72 (est.)–
    Reviews found online75–

    Discoverer AT3 4S: 60% × 72.4 (est.) + 40% × 75 = 73

    No road tests of snow for Discoverer AT3 4S. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.37).

  4. 80

    Comfort

    No comparison
    –
    Why this score
    SourceDiscoverer AT3 4SGeolander A/T S
    Professional tests (TWG score)≈ 72 (est.)–
    Reviews found online86–

    Discoverer AT3 4S: 40% × 72.1 (est.) + 60% × 85.7 = 80

    No road tests of comfort for Discoverer AT3 4S. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.

  5. 73

    Noise

    No comparison
    –
    Why this score
    SourceDiscoverer AT3 4SGeolander A/T S
    Professional tests (TWG score)≈ 67 (est.)–
    Reviews found online83–

    Discoverer AT3 4S: 60% × 66.6 (est.) + 40% × 83.4 = 73

    No road tests of noise for Discoverer AT3 4S. The test half is the tested tires’ average (67): owners’ noise ratings barely follow the road tests.

  6. 74

    Treadwear

    No comparison
    –
    Why this score
    SourceDiscoverer AT3 4SGeolander A/T S
    Professional tests (TWG score) · 1 / – tests71–
    Reviews found online80–

    Discoverer AT3 4S: 60% × 71.1 + 40% × 79.5 = 74

  7. 81

    Handling (owners)

    No comparison
    –
    Why this score
    SourceDiscoverer AT3 4SGeolander A/T S
    Reviews found online81–
Scores at a glance
CategoryCooper Discoverer AT3 4SYokohama Geolander A/T S
Relative Score 79 –
Dry 82 –
Wet 85 –
Snow 73 –
Comfort 80 –
Noise 73 –
Treadwear 74 –
Handling (owners) 81 –

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

Weight the categories that matter to you

Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.

Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
± 7

Discoverer AT3 4S

Geolander A/T S

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 Geolander A/T S

Not enough owner reviews yet to extract themes.

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.

f150forum.com

“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!”
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/tires ·1 upvote ·2026-08-12

“Suggestions for replacing AT tires on SUV I have an expedition, and used to need AT tires because of where I used to live and work, but now find I don't need them. I was running some Cooper Discoverer AT3 4S. Absolutely fantastic tires, but now I want to get some all weather since its mostly suburban and highway driving. We get a lot of snow so that's important to me as well. Any suggestions or real world advice? Thanks!”
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

Yokohama Geolander A/T S

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

Specs side by side

Attribute A · Cooper Discoverer AT3 4S B · Yokohama Geolander A/T S
CategoryAll-Terrain tireAll 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

Yokohama Geolander A/T S

Only Cooper Discoverer AT3 4S has enough test and review data for a Relative Score, so there is no head-to-head winner yet.

Tire A · Cooper Discoverer AT3 4S
Check price on Amazon
Tire B · Yokohama Geolander A/T S
Check price on Amazon

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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.

Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.

Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology