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DISCOVERER® AT3 XLT™

The Discoverer® AT3 XLT™, featuring Durable Tread Technology™, hauls heavy loads with less wear and is built to withstand ongoing assault from dirt and gravel. Available in larger sizes.
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Features
Dry performance
The tire's ability to grip the road in dry conditions.
Wet performance
The tire's ability to grip the road in wet conditions.
Tread wear
The wear rate of the tire.
Quiet ride
The measure of how quiet a tire is while driving.
Handling
How the tire is able to respond to driving such as accelerating, braking, steering and turning.
Off road
The tire's ability to have grip on unpaved surfaces such as dirt, mud, sand, rock or gravel.
*When compared to other Cooper® tires

DISCOVERER® AT3 XLT™

  1. Even wear arc technology™
    Tire shape engineered to strategically balance pressure at the tire-to-road contact area, promoting even on-road tread wear and superior handling.
  2. Whisper Grooves™
    Provides a sound barrier that reduces road noise.
  3. Rugged traction shoulders
    Increased off-road traction for boulder crawling and mud handling, as well as additional resistance against abrasion and punctures.
Full specs

Tire specifications

There are 2 tire sizes available
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Tire size
The tire size is made up of: Tread Width / Aspect Ratio / Rim Diameter. For example 245/50R18
Width
The tire width is a millimetre measurement for the width of the tire. For example 245 mm when reading a tire size of 245/50R18
Aspect ratio
The aspect ratio is the percentage of the height of the sidewall compared to the tread width. For example 50% when reading a tire size of 245/50R18
Load
The maximum load a tire can carry is defined as a ‘Load Index’. Please refer to https://www.coopertire.co.uk/tire-safety-tips/correct-loading/
Speed rating
The Speed Symbol is shown as a letter and indicates the maximum speed. Please refer to https://www.coopertire.co.uk/tire-safety-tips/correct-loading
Max speed
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Sidewall
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Rolling Resistance
Rolling Resistance
5 classes from E (least efficient) to A (most efficient)
Effect may vary among vehicles and driving conditions, but the difference between a E and an A class for a complete set of tyres could reduce fuel consumption by up to 7.5 %* and even more in case of trucks. Fuel savings and road safety depend heavily on the behavior of drivers and eco‐driving can significantly reduce fuel consumption.
Wet grip
Wet Grip
5 classes from E (longest braking distances) to A (shortest braking distances)
Effect may vary among vehicles and driving conditions, but in the case of full braking, the difference between a E and an A class for a set of four identical tyres could be up to 30% shorter braking distance (e.g. for a typical passenger car driving at 80 km/h speed this could be up to 18m shorter braking distance)*. Stopping distances must always be respected.”
Noise level
Noise Level
In addition to the noise value in Decibel dB(A) a letter (from A to C) displays whether the tyre external rolling noise performance is above the United Nation Reg 117 mandatory limit value
(Class C = noisier tyre), the tyre noise is higher than the UN limit
(Class B = average tyre) or more than 3 dB below the limit value
(Class A = low noise tyre).
NB: The tyre external rolling noise is not entirely correlated to vehicle interior noise.
EU label
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LT265/60 R 2026560121R106ED73
LT31/10.50 R 153110.50109R106Raised White LetteringED73
Tire care

Tire care

Tire inspection
Tire inspection
Keep an eye out for potential problems that might affect your tires.
EU LABEL INFORMATION
EU LABEL INFORMATION
What is the EU label on a tire and can I use it?
CORRECT TIRE PRESSURE
CORRECT TIRE PRESSURE
Driving on any tire that does not have the correct inflation pressure is dangerous.
Tire safety tips
Tire safety tips
How to get the most out of your tires.
2025