Tire Scouter
Cooper Discoverer Stronghold AT

Cooper Discoverer Stronghold AT

  • All-terrain
  • 23 sizes
  • Severe-snow rated

Best for off-road enthusiasts. Ideal for those who frequently venture off the beaten path and need a tire that can handle rough terrains and winter conditions.

Not enough dataNo data

60k mi

Not graded

Score and specs shown for size 225/75R16. Other sizes are listed below and can differ.

Our take

The Cooper Discoverer Stronghold AT is a solid choice for off-road enthusiasts who prioritize durability and winter capability. Its 60,000-mile treadwear warranty is a standout feature in the all-terrain category, surpassing the average and indicating a longer lifespan. The 3PMSF rating adds confidence in winter conditions, making it versatile for year-round use.

In terms of handling, the Stronghold AT matches the category average, providing reliable control on various surfaces. However, its wet grip score of 4 is a weak point, trailing the category average of 5.2. This could be a concern for drivers who encounter frequent rain or wet roads. The dry grip is slightly below average as well, which may affect performance on paved surfaces.

When compared to competitors like the Toyo Open Country A/T III, which offers better wet grip, the Stronghold AT may not be the best choice for those prioritizing wet-weather performance. However, its treadwear warranty and winter capabilities make it a compelling option for off-road and mixed-terrain drivers.

If wet grip is a priority, consider the Toyo Open Country A/T III or the Yokohama Geolandar A/T G015. Otherwise, the Discoverer Stronghold AT is a durable and versatile tire for off-road adventures.

Pros

  • Off-road traction is supported by the 3PMSF rating, indicating solid performance in winter conditions.
  • Treadwear warranty of 60,000 miles exceeds the all-terrain category average of 55,717 miles, suggesting better longevity.
  • Handling score of 6.5 is on par with the category average, providing reliable on-road control.

Cons

  • Wet grip performance is notably below average, making it less ideal for frequent wet-weather driving.
  • Wet grip score of 4 is significantly below the category average of 5.2, which could be a concern in rainy conditions.
  • Dry grip rating of 6.5 falls just short of the category average of 6.6, which might affect performance on paved roads.
  • The Toyo Open Country A/T III offers a better wet grip, making it a more suitable choice for mixed-weather driving.

Tirescouter Editorial analysis, written from manufacturer specs with AI assistance. It is not based on road tests or owner reviews. How we score

Spec facts

60,000 mi
Not graded
Not graded
Not graded
R · 106 mph
115 · 2,680 lb max
80 psi
Yes

Available sizes

Every size the Discoverer Stronghold AT comes in. Pick a size to compare other tires made in it.

23 sizes

Every size this tire comes in, with its load, speed and UTQG ratings
SizeShop this sizeLoad indexSpeed ratingUTQGWarrantyMax loadMax PSI
225/75R16Tire Rack115R · 106 mphNot graded60k mi2,680 lb80
235/80R17Tire Rack120R · 106 mphNot graded60k mi3,085 lb80
235/85R16Tire Rack120R · 106 mph50060k mi3,042 lb80
245/70R17Tire Rack119R · 106 mph60060k mi3,000 lb80
245/75R16Tire Rack120S · 112 mph60060k mi3,042 lb80
245/75R17Tire Rack121S · 112 mph60060k mi3,195 lb80
265/60R18Tire Rack119S · 112 mphNot graded60k mi3,000 lb80
265/60R20Tire Rack121S · 112 mphNot graded60k mi3,195 lb80
265/65R18Tire Rack114T · 118 mph60060k mi3,305 lb80
265/70R17Tire Rack123R · 106 mph60060k mi3,415 lb80

Ready to check availability?

Browse Tire Rack’s selection, then choose your size to check availability.

Shop Cooper at Tire Rack

Fits these vehicles

A sample of recent vehicles whose factory front size matches one of this tire's sizes.

  • 2025 Chevrolet Express 3500
  • 2025 Ford E-350 Super Duty
  • 2025 Ford E-450 Super Duty
  • 2025 Ford Transit
  • 2025 Mercedes-Benz Sprinter 3500
  • 2025 Ram ProMaster 1500
  • 2025 Ram ProMaster 2500
  • 2025 Ram ProMaster 3500
  • 2025 Ram ProMaster EV
  • 2025 Chevrolet Silverado 3500
  • 2025 GMC Sierra 3500 HD
  • 2025 Ford F-150

Related buying guides