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Head-to-head Updated September 2026

Cooper Discoverer AT3 XLT vs Cooper Discoverer MS — Compared (September 2026)

Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.

Tire A Cooper

Cooper Discoverer AT3 XLT

Premium Touring All Season tire

Cooper Discoverer AT3 XLT tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
94/100
478 owner reviews
Dry
97
Wet
94
Snow
89
Comfort
93
Noise
93
Treadwear
93
Handling
94
Check price on Amazon

Prices change daily — check the retailer for your size.

VS
Tire B Cooper

Cooper Discoverer MS

Winter Touring tires

Cooper Discoverer MS tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
85/100
9 owner reviews
Dry
89
Wet
87
Snow
100
Comfort
71
Noise
–
Treadwear
80
Handling
77
Check price on Amazon

Prices change daily — check the retailer for your size.

VerdictWinner: Cooper Discoverer AT3 XLT — better comfort, handling and treadwear. Pick the Cooper Discoverer MS if snow matters most to you.
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Category breakdown

7 categories, side by side

Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.

Dry

Weight: Neutral
Score (0–100) Discoverer AT3 XLT leads by 8
A
97
B
89
Why this score
SourceDiscoverer AT3 XLTDiscoverer MS
Tire Rack owners 89 –
Tyre Reviews owners 83 89
SimpleTire owners 98 –
America's Tire owners 97 –

Wet

Weight: Important
Score (0–100) Discoverer AT3 XLT leads by 7
A
94
B
87
Why this score
SourceDiscoverer AT3 XLTDiscoverer MS
Tire Rack owners 87 –
Tyre Reviews owners 78 87
SimpleTire owners 97 –
America's Tire owners 94 –

Snow

Weight: Neutral
Score (0–100) Discoverer MS leads by 11
A
89
B
100
Why this score
SourceDiscoverer AT3 XLTDiscoverer MS
Tire Rack owners 92 –
Tyre Reviews owners 70 100
SimpleTire owners 90 –

Comfort

Weight: Neutral
Score (0–100) Discoverer AT3 XLT leads by 22
A
93
B
71
Why this score
SourceDiscoverer AT3 XLTDiscoverer MS
Tire Rack owners 83 –
Tyre Reviews owners 88 71
SimpleTire owners 96 –
America's Tire owners 93 –

Noise

Weight: Neutral
Score (0–100)
A
93
B
–
Why this score
SourceDiscoverer AT3 XLTDiscoverer MS
SimpleTire owners 92 –
America's Tire owners 93 –

Treadwear

Weight: Important
Score (0–100) Discoverer AT3 XLT leads by 13
A
93
B
80
Why this score
SourceDiscoverer AT3 XLTDiscoverer MS
Tire Rack owners 87 –
Tyre Reviews owners 78 80
SimpleTire owners 91 –
America's Tire owners 93 –

Handling

Weight: Neutral
Score (0–100) Discoverer AT3 XLT leads by 17
A
94
B
77
Why this score
SourceDiscoverer AT3 XLTDiscoverer MS
Tyre Reviews owners 83 77
America's Tire owners 94 –

Scores at a glance

CategoryCooper Discoverer AT3 XLTCooper Discoverer MS
Relative Score 93 84
Dry 97 89
Wet 94 87
Snow 89 100
Comfort 93 71
Noise 93 –
Treadwear 93 80
Handling 94 77

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

Personalize

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.

Neutral
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Important
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Neutral
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Neutral
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Neutral
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Important
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Neutral
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Recomputed
Headline score

Tire A

Tire B

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

Community buzz

What real owners are saying

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

Tire A

Cooper Discoverer AT3 XLT

Positive

Community members express strong satisfaction with the Cooper Discoverer AT3 XLT, highlighting its smooth ride quality, impressive comfort, and quietness compared to competing all-terrain tires like BFG KO2 and Toyo Open Country A/T II. Users also appreciate the solid value when purchased through online retailers during holiday sales, though questions occasionally arise regarding specific winter rating designations.

r/f150 ·51 upvotes ·2021-12-30

“New shoes this week, Cooper Discoverer At3 XLT. I’m really impressed so far.”
r/NissanTitan ·29 upvotes ·2023-03-29

“Put some new tires on the XD today. Cooper Discoverer AT3 XLT in 275/70R18. I usually run BFG KO2s on my trucks but wanted to try something different this time.”
r/ram_trucks ·27 upvotes ·2024-07-11

“Cooper Discoverer AT3 XLT Picked up a set of Discoverer AT3 XLT from simple tire. With the 4th of July discounts all 4 were under 1k before taxes. I had the AT3 4S on a previous ram and they held up so I’m expecting good things here.”
r/ram_trucks ·22 upvotes ·2021-11-19

“New Cooper Discoverer AT3 XLT 275/75R20 these ride way better than my old Open Country A/T II”
Top themes
#ride comfort and smoothness#low road noise#comparison to competing tires#value and pricing#winter and snow rating

Based on 7 community posts

Tire B

Cooper Discoverer MS

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

Specifications

Specs side by side

Attribute A · Cooper Discoverer AT3 XLT B · Cooper Discoverer MS
CategoryPremium Touring All Season tireWinter Touring tires
Vehicle typeSUV and 4x4—
Sizes available3—
Rim diameters16″ – 20″—
Tread depth16 - 18/32″—
Treadwear warranty60,000 mi—
SidewallBlack Side Wall - Raised White Lettering—
Max pressure35 - 80 psi—
Final verdict

Which one should you actually buy?

Cooper

Cooper

Winner: Cooper Discoverer AT3 XLT — better comfort, handling and treadwear. Pick the Cooper Discoverer MS if snow matters most to you.

Pick tire A You want the most comfortable ride

Cooper Discoverer AT3 XLT scores 93 vs 71 on comfort.

Pick tire A You enjoy sharp, responsive handling

Cooper Discoverer AT3 XLT scores 94 vs 77 on handling.

Pick tire A You want the longest tread life

Cooper Discoverer AT3 XLT scores 93 vs 80 on treadwear.

Pick tire B You drive through snowy winters

Cooper Discoverer MS scores 100 vs 89 on snow.

Tire A · Cooper Discoverer AT3 XLT
Check price on Amazon
Tire B · Cooper Discoverer MS
Check price on Amazon

How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.

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