*Tread pattern & sidewall design may vary from pictures

Cooper Discoverer AT3 LT

121/118S, E (10 Ply)
  • All Season All Season
  • All Terrain All Terrain
  • 60,000 miles 60,000 miles

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MSRP $309.75
Total for 4: $1011.96
You save $56.76 (18%)
In Stock (10+)
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Tire Specifications

  • SKU N987139-99
  • Season All Season
  • Sidewall OWL: Outlined White Letters
  • Type Light Truck
  • Aspect Ratio 65
  • Size 275/65R17
  • Load Range E (10 Ply)
  • Brand Cooper
  • Load Index 121/118
  • Tread Depth 16/32
  • Performance All Terrain
  • Treadlife 60,000 miles
  • Section Width 275
  • MPN 90000032629
  • Run Flat No
  • Model Discoverer AT3 LT
  • Speed Rating S
  • Rebate Available No
  • Rim Diameter 17
  • Overall Diameter 31.1


Cooper Discoverer AT3 LT


  • All weather traction
  • All terrain traction
  • Enhanced controllability
  • Longer lasting tread life
  • Reduced road noise levels


The Cooper Discoverer AT3 LT is an all terrain, all season tire manufactured for light truck vehicles. Cooper offers a 60,000 mile treadwear warranty with this model.

The tire promotes excellent all weather traction. The special damage resistant silica compound and the five-rib design work together to guarantee a first-rate dry, wet and winter weather road gripping ability. The silica compound does not lose its flexibility in colder temperatures, while the tread elements maintain good road grip at all times. The wide zigzag tread grooves prevent hydroplaning by dispersing water and slush from below the tire’s footprint. This ensures a safer driving experience in all weather, promoting better performance.

The tread design and tire compound combined increase the all terrain traction. They allow the tire to conquer all soft, loose and uneven terrain surfaces with ease and ensure a safer drive. The staggered tread blocks of the five-rib tread design enhance the road grip both on and off-road, making the tire more versatile in its use. The staggered tread block, alternating scoops and special stone ejecting ledges enhance the tread’s self-cleaning ability. They eliminate mud and snow and eject stones stuck between the tread elements to maintain a clean footprint and prevent stone retention, which can harm the tread area.

The model was made with the Even Wear Arch Technology. This technology evenly distributes the driving pressure across the tread area. The equally spread out forces of acceleration, braking and cornering actively prevent irregular tread wear formations across the tread area. The resistance of uneven wear extends the tire’s usability and tread life significantly. The strategically balanced driving pressure also improves the model’s handling. It increases the steering responsiveness and driving stability thanks to the even pressure circulation and the reinforced steel belted internal structure. The better controllability ensures a more secure drive both on and off road.

The model provides a quiet driving experience. The tread design features the special whisper grooves that create a sound barrier to decrease the road noise levels heard during the drive. While the tires are in motion, the whisper grooves actively channel the airwaves through the tire’s footprint, without letting them come into contact with the tread elements. This decreases the road noise levels heard in the vehicle’s cabin and ensures a comfortable and enjoyable drive in all weather and on all terrain surfaces.

The Cooper Discoverer AT3 LT’s internal structure features a two-ply polyester casing and twin steel belts reinforced with a nylon ply. These strengthen the tire’s durability during the drive by preventing deformation under the driving pressure. The tire maintains its optimal shape when driving on and off-road and ensures a safer driving experience in all weather.


Shipping Information


If an order is placed before 1pm EST on a business day we ship the order the same day.

If it is placed after 12pm EST or over the weekend, we will ship the order out the following business day. Depending where you are located in the 48 contiguous states FedEx will take 2-5 business days to deliver the tires to you from our Allentown, PA location.

For a more specific tire frame contact us via e-mail or telephone 1-866-440-0177.

Compatible Vehicles

IMPORTANT INFORMATION: Please note this is Original Equipment (O.E.) tire size only. The O.E. size is determined by the year, make, model and options of the vehicle. Original Equipment size data is the best information we currently have available to us. Priority Tire LLC is not responsible for fitment errors. The most important aspect of purchasing a tire is its size, which cannot vary. It is buyer's responsibility to verify the tire size information. It is buyer's responsibility to verify whether a specific tire is suitable for a specific vehicle. However, this tire size may be fitted on other vehicles as well. To ensure that you are purchasing the correct tire size for your vehicle, please check the size of your currently mounted tires (locate on the tire's sidewall). The tire's sidewall also features the speed and load rating, indicating the speed and load capacity of the specific tire. The speed and load index can differ from the tires you currently have mounted on your vehicle up to a degree. Please check your vehicle's Owner's Manual or consult with your mechanic regarding the changes of your tire's speed rating and load index. If you have any questions regarding your tire size , speed rating and load index please contact us prior to purchasing and confirm with certified auto technician of any variance in speed and load index and sizes.

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