The Cooper Discoverer Stronghold AT is the latest addition to the esteemed Cooper Discoverer family, designed to handle tough terrain and heavy loads for towing and hauling. Built for durability and traction, this all-terrain tire promises to deliver when it matters most, whether you’re navigating dirt roads, gravel paths, or snowy conditions.
Key Features
- All-Terrain Performance: The Cooper Discoverer Stronghold AT excels in providing solid traction on dirt, gravel, and other soft surfaces. Wide open grooves in the tread enhance stability and grip.
- Winter Ready: With the Three-Peak Mountain Snowflake Designation (3PMS), the Stronghold AT meets stringent snow traction standards, making it a reliable choice for winter driving.
- Durability: This tire is built to resist cutting, cracking, and tearing, ensuring longevity and reliability in demanding environments.
- Compatibility: Available in 28 sizes, from 16 to 20-inch rim diameters, the Stronghold AT fits a wide range of popular pick-up trucks and off-road vehicles.

Pros and Cons
Pros:
- Excellent Traction: Provides solid grip on various terrains, including dirt, gravel, and snow.
- Durability: Designed to withstand tough conditions and heavy loads, making it ideal for towing and hauling.
- Winter Performance: Carries the 3PMS symbol, indicating strong performance in snowy conditions.
- Wide Range of Sizes: Compatible with many light trucks and SUVs, offering flexibility for different vehicles.
- Warranty: Comes with a 60,000-mile treadwear limited warranty and a 45-day test drive guarantee.
Cons:
- Noise: Some users might find all-terrain tires to be noisier on highways compared to all-season tires.
- Fuel Efficiency: All-terrain tires can sometimes result in slightly lower fuel efficiency compared to highway tires.

Cooper Discoverer Stronghold AT Pricing
The Cooper Discoverer Stronghold AT is competitively priced, reflecting its premium features and robust performance. Prices vary depending on the size and retailer, but generally, it is positioned within the mid to high range for all-terrain tires. This pricing is justified by its durability, performance capabilities, and the comprehensive warranty it offers.
Cooper Discoverer Stronghold AT Review Mileage Warranty
One of the standout features of the Cooper Discoverer Stronghold AT is its 60,000-mile treadwear limited warranty. This significant mileage warranty underscores Cooper Tire’s confidence in the durability and longevity of the Stronghold AT. Additionally, the tire comes with a 45-day test drive guarantee, allowing consumers to try the tires and ensure they meet their expectations.

What Vehicles Does the Cooper Discoverer Stronghold AT Fit?
With 28 sizes ranging from 16 to 20-inch rim diameters, this new Cooper fits numerous options, but specifically has fitments for the heavy duty trucks below.
- Ram 2500/3500
- GMC Sierra 2500/3500 HD
- Chevy Silverado 2500/3500 HD
- Ram ProMaster 3500
- Ford F-250/350 Super Duty
- Jeep Gladiator Rubicon
Should You Buy the Cooper Discoverer Stronghold AT?
The Cooper Discoverer Stronghold AT is a solid choice for those needing a reliable and durable all-terrain tire. Its excellent traction on various surfaces, winter readiness, and robust design make it suitable for a wide range of vehicles and driving conditions. With a strong warranty and a proven track record from the Cooper Discoverer family, the Stronghold AT is positioned as a top contender in the all-terrain tire market.
How Long Do Cooper Discoverer Stronghold AT Tires Last?
Based on the estimated tread life from the factory as well as Cooper’s long reputation for building durable tires, expect to get 60,000 miles on a set of Cooper Discoverer Stronghold AT tires with frequent off-road use.
Cooper Discoverer Stronghold AT Sizes
16-inch sizes
LT225/75R16115
LT235/85R16120
LT245/75R16120
LT285/75R16126
17-inch sizes
LT235/80R17120
LT245/70R17119
LT245/75R17121
LT265/70R17123
LT275/70R17124
LT285/70R17126
LT285/75R17128
LT295/70R17128
LT315/70R17126
18-inch sizes
LT265/60R18119
LT265/65R18122
LT265/70R18123
LT275/65R18123
LT275/70R18125
LT285/65R18125
LT285/75R18129
LT295/70R18129
20-inch sizes
LT265/60R20121
LT275/55R20120
LT275/60R20123
LT275/65R20126
LT285/60R20125
35X12.5R20LT