Three-peak mountain snowflake


The Discoverer® AT3 LT™, featuring Durable Tread Technology™, hauls heavy loads with less wear, and is built to withstand ongoing assault from dirt and gravel.
Show available sizes
Find a store
Click to enlarge
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.
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


  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. Stone ejector ledges
    Ledges easily eject stones and gravel, protecting the tire from stones drilling into carcass and maintaining a clean tread for enhanced road traction.
Full specs

Tire specifications

There are 14 tire sizes available
More Information?
Tire size
The tire size is made up of: Tread Width / Aspect Ratio / Rim Diameter. For example 245/50R18
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
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
(cannot find text: coopertires_sites:site.tooltips.max_speed)
(cannot find text: coopertires_sites:site.tooltips.sidewall)
Roll resistance
Rolling Resistance is the main key factor in measuring the energy efficiency of a tire and has direct influence on the fuel consumption of a vehicle. A set of tires of the green class “A” compared to a “G” class can reduce fuel consumption by 7.5% of a passenger car; even more for trucks.
Wet grip
Basis for wet grip is the absolute stopping distance when driving 80km per hour. Between each class, there are 3-6 metres difference in braking distance.
Noise level
The drive by noise is quoted as an absolute value in decibel and as a 3 classes sound wave symbol.
EU label
(cannot find text: coopertires_sites:site.tooltips.eu_label)
LT265/60 R 1826560119S180EC73
LT265/65 R 1726565120R170Outlined White LetteringEC73
LT265/70 R 1726570121S180Outlined White LetteringEC73
LT265/70 R 1726570112S180Outlined White LetteringEC73
LT245/70 R 1724570119S180Outlined White LetteringEC73
LT245/75 R 1724575121S180Outlined White LetteringEC73
LT235/80 R 1723580120R170EC73N/A
LT265/70 R 1626570121R170Outlined White LetteringEC73
LT265/75 R 1626575112R170Outlined White LetteringEC73
LT245/70 R 1624570118R170Outlined White LetteringEC73
LT245/75 R 1624575120R170Outlined White LetteringEC73
LT235/85 R 1623585120R170EC73
LT225/75 R 1622575115R170EC73
LT215/85 R 1621585115R170EC73
Tire care

Tire care

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