Cooper Discoverer AT3 Review: 4S vs XLT Version

If you are looking for a versatile and quality tire, then the Cooper Tire family of wheels is something you cannot ignore.

Discoverer AT3 is the old product line in the automotive tire market. It fully converges factors from price to use, highly appreciated by customers in the off-road tire line. 

Along with the intense technology development, Cooper’s discoverer constantly develops each product, updating each feature to bring the most compatible value to customers. Check out the Cooper Discoverer AT3 review for details!

Tire Features

Cooper is a tire design manufacturer that has existed for more than a hundred years. Pioneering in the automotive tire industry, Cooper Tire has launched a full line of car wheels suitable for each vehicle type. 

In which, Discoverer 4S and Discoverer XLT are the two most prominent tire lines. They are highly appreciated by customers for their quality and durability. Here are the features of these two products.

Cooper Discoverer AT3 4S

Cooper Discoverer AT3 4S

The Cooper Discoverer AT3 4S series of tires are similar to 15-22 inches. As a product line preferred for use in pickup trucks or SUVs, bearing the weight throughout service through the year’s seasons. once introduced the product line: “AT3 4S comes with strong traction adaptive technology – grips firmly on the road, rocky or smooth surfaces in any case“.

At the 4S version, you will enjoy using a machined tire with the exclusive Adaptive – Traction technology. Durability on all types of terrain encountered, ability to adapt to speed, grip, and substantial brake force adjustment.

Quick Rundown Of Cooper Discoverer AT3 4S:


  • Have a long-term warranty policy
  • Durable
  • Good traction ability
  • Walk on the snow with ease
  • Control the force, brake well on the snow


  • Not suitable for walking on mud.

Cooper Discoverer AT3 XLT

Cooper Discoverer AT3 XLT-470x470

The Cooper Discoverer AT3 XLT version has popular sizes from 15-20 inches. The design is for pickup trucks with heavyweight or more, good weight capacity, and carrying many objects on flat terrain.

The same material as the AT3 4S tires is all made of silica; the grooved surface design with minor cuts is resistant to all types of terrain encountered. 

In addition, Cooper also equips the XLT line with the Even Wear arc technology to help reduce pressure, control the force of contact balance between the road surface and the wheel.

In the XLT, the 3-layer tight design creates a thick polyester sealing ring plus two layers of solid reinforcement. At the top of the reinforced steel belt, a nylon substance also adds durability, quickly handling the problem of speed in an emergency.

Quick Rundown Of Cooper Discoverer AT3 XLT


  • Long warranty period
  • The structure of the tire is durable
  • Have good traction
  • Work well in dry terrain


  • Not suitable for use on ice.

Difference Between Cooper Discoverer AT3 4S vs XLT

The main difference between the two products that we see is their inherent size. These tires target different customers, so their size structure is also uneven.

Cooper Discoverer AT3 4S was designed mainly for use in SUVs and light trucks, so the traction and cargo force with the AT3 4S is not outstanding.

As for the Cooper Discoverer AT3 XLT, on the contrary, with a hefty load capacity, the design size is also more prominent, so it can tow cargo and large trailers.

Cooper Discoverer AT3 4S vs XLT: A Closer Look

Here are the contents and information you need to understand the Cooper Discoverer AT3 tire better.

Maintenance indicators

The usual size of AT3 tires mainly falls in the range of 15-22 inches, depending on the type of vehicle. According to the information given by the manufacturer, they recommend that customers regularly change their tires if the wheel is rusted from 2/32 inch, i.e., about 1.66 mm.

As you know, in each tire, there are always spikes. The tread part plays a vital role in traction and increases friction in turns. Over time, the tread can wear out, which can cause hydroplaning conditions to drain water from the tire to the outside.

Besides, Cooper Tire’s warranty is worth your reference. Sixty-five thousand miles is the mileage of the Cooper Discoverer AT3 4S series, which is guaranteed by the manufacturer, one of the best warranties to date. For the Discoverer line AT3, XLT will be less than 60,000, but it is also an astonishing number.

Dry Traction

The driving experience with both versions is relatively reliable with quite high sensitivity. Surprisingly, it responded well enough to sharp turns on the pitch at high speeds. In other words, its cornering grip is acceptable for short distances.

Smooth movement in dry roads is partly due to the excellent strength of silica material, the main structural component that makes up the complete wheel. The grip of the road is good, minimizing slippery problems when traveling.

Wet and slippery roads

Customers prefer the Cooper Discoverer AT3 mainly because of its versatility. In all types of terrain Cooper Discoverer AT3 can always satisfy consumers.

Thanks to the combined application of two modern technologies, Adaptive- Traction and 3D Micro-Gauge, Cooper tires have the anti-slip ability and high grip when moving on wet and rainy roads.

The hydrolysis will also be limited thanks to the design of four grooves on the tire surface, which help water escape and strengthen the durability of the tread.

Snow Traction

Working on slippery snow is unlikely to be good for the tires. The main reason is that the grip on the snow is not high, the stability on the terrain is not good, so the tires are always limited to operating on this ground. 

But fortunately, the Cooper Tire family has overcome this disadvantage well in the new generation of Cooper Tire Discoverer AT3.

One option you can consider is the Cooper discoverer AT3 4S tire, which is adaptable to all types of terrain, including the snow mentioned above.

The AT3 4S has an Aqua VacTM funnel and wide side grooves that promote adequate drainage and moisture resistance. 

The wheel is also equipped with a Micro-Gauge ZigZag measuring tube to create additional edges that grip the road well.

In addition, intelligent Groove Snow technology has recently begun to be applied to new generation tires, taking advantage of the teeth of the tire edge to prevent slipping.

The 3PMSF (3 Snowflakes on the Top of the Mountain) is on the tire’s sidewall as a testament to the product’s ability to walk on snow.


Besides the must-have features of a wheel, creating a comfortable feeling for users is also a goal that manufacturers gradually direct to.

Cooper Tire has focused and successfully applied Arc to the new generation tires of the Cooper Discoverer AT3 series. With ArC technology, you will see the ability to maintain a good balance of force when traveling on the road, impressively handling obstacles encountered such as obstacles, potholes.

The whisper technology makes the AT3 special, which reduces noise as much as possible to ensure a long, gentle ride.


We think the Cooper Tire family of tires is well worth your all-terrain testing.

Discoverer AT3 is fully equipped with all the features to adapt in all situations, from dry roads to wet and slippery places. It performs with ease during the journey over obstacles, severely eroded roads.

Maybe the Cooper Discoverer AT3 isn’t the only option for off-roading for many people. 

But we can assure you that the Cooper Discoverer AT3 will perform well as a versatile tire, especially for those who own SUVs and pickup trucks. Cooper Tire house tires can conquer any Off-Road.


The highway can be a place to show whether the performance of the tires is good. Here you will have to travel on the road at high speed, averaging 1,000 miles in just a few minutes.

In the AT3 tires, Cooper Tire has focused on designing Whisper grooves on the tire to create a smooth feeling, minimizing noise when running across the highway.

One commendable thing about the AT3 tire is that it doesn’t have much of an impact on the truck’s performance numbers, making it easier to control the front end.

Is It Worth The Money?

Compared to the common ground, the product’s price is relatively low, so try it out if you have the opportunity. With outstanding features, Cooper Tire tires fully meet most of the requirements you need, from quality to beneficial uses.


This article summarizes relevant knowledge of the Cooper Discoverer AT3 tire. Hopefully, with the above information, you can make the right decisions to find a suitable wheel. 

If you have any questions, you can leave a message, and we will contact you or answer them as soon as possible.

Last but not least, do not forget to share this article with your relatives or friends who may be followers of this tire brand. Somehow, you might be able to help if they’re also considering a suitable version. Thank you for reading!

List of my Cooper Tire Reviews

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