Cooper

Cooper Stronghold AT - LT35x12.50R20F 125R Tire

|27 ratings
Item # 984214783
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Smart summary

Generated by AI
  • All-Terrain Capability: Engineered for heavy-duty pickup trucks, this Cooper Discoverer Stronghold AT tire supports substantial loads and endures long highway hauling.
  • Durable Tread Design: Strategically designed tread lugs resist cracking, tearing, and rounding, while ledges between lugs prevent stone retention.
  • Optimal Wet Traction: A specialized rubber compound and wide lateral grooves effectively displace water, providing maximum traction on wet, dirt, and gravel surfaces.
  • Strong Shoulder Grip: Features a robust shoulder design with scooped tread edges, wide grooves, and a sidewall hook pattern for consistent grip and traction.
  • Severe Snow Performance: Earns the Three-Peak Mountain Snowflake Designation, indicating suitability for severe snow conditions with textured shoulder edges for enhanced winter traction.
  • Product Specifications: This LT35X12.50R20F 125R tire features a black sidewall and model number 170-304-048.
Cooper Stronghold AT - LT35x12.50R20F 125R Tire
Cooper Stronghold AT - LT35x12.50R20F 125R Tire
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About this item

Product details

Before purchasing tires, make sure to use our Tire Finder to select the right fit for your vehicle.

Cooper introduces the Discoverer Stronghold AT. Strong and Durable, and backed by a 60,000 mile warranty, this tire will last until the job is done! Strategically designed tread lugs help to resist cracking, tearing, and rounding of the tread. Ledges between the lugs help prevent stones getting stuck in tread. The Stronghold is protected from demanding environments. A specialized rubber compound and wide lateral grooves help plow through water, providing maximum traction.

Solid Traction in Dirt and Gravel
Wide open grooves in the tread grab and release soft surfaces, while the narrower center grooves help to provide stability.

Strength that Lasts the Test of Time
Strong shoulder design features such as scooped tread edges, wide tread grooves, and sidewall hook pattern all help provide grip and traction for the life of the tire.

Great Snow Traction
Textured edges on the shoulders grab into snow to help provide traction in harsh winter conditions.

Three-Peak Mountain Snowflake Designation
Tires designed for use in severe snow conditions and meet specific snow performance test requirements.

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Specifications

Product Details
Tire Size:35x12.50R20F
Service Description:125R
Sidewall:Black sidewall
Material # or MSPN:170-304-048
Rim Width (min. to max.):8.5-11.0
Section Width:12.5
Overall Diameter:34.5
Tread Depth (32nds):17
RPM:603
Max Load (lbs.):3640 lbs @ 80 psi
UTQG Rating
Treadwear:0
Traction:0
Temperature:0

Warnings and disclaimers

Disclaimer

Wheel Not Included

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Showing 1-3 of 9 reviews

May 12, 2026
Anonymous
5 out of 5 stars review

Verified Purchase

COOPER TIRES

Great looking tires should last me a couple of years if no flats etc.. They ride quiet and impressed with how they handle the road.

Helpful?3BOZFWL9OK0L13605106281
Jun 30, 2026
anonymous
5 out of 5 stars review

Cooper Stronghold AT

Installed a set of 6 Cooper Stronghold AT's on my Ford F350 4x4 Dually about 14 months ago and I've put about 8K miles on them and so far they still look new. They have performed well in all conditions. I've logged about 3500 miles towing a large 5th wheel RV with no adverse issues. Highly recommend them.

Helpful?3BOZFWL9OK0L13605106281
Jan 15, 2026
anonymous
5 out of 5 stars review

aggressive AT tire

Had these Coopers installed this morning. Drove back home on a mix of interstate and Ohio back roads. It snowed last night so some roads were covered with about 1" of snow and others were dry. Tires handled great. Had a tad more road noise than the Mastercrafts they replaced (you can see them in bed in one of the pictures) but I'm not driving a 1 ton diesel because of the smooth quiet ride it has. As soon as I got home I drove around one of my fields and the tires done great. They had 3 other E rated AT's in stock so I was able to directly compare them. These and the Toyo At's were the most aggressive looking tread and looked like both weighted heavily towards off-road ability. The Wildpeak At 4 and Pirelli scorpion AT plus looked less aggressive and more weighted towards on road manners. These Coopers had the most aggressive sidewall biters out of them all and spacing between lugs that was atleast as wide as the Toyos and wider than the other two. These coopers were the least expensive. Cooper and Toyo were the only two Made in USA. They all had the 3peak snow designation. Tread depth looked the same between the Wildpeak, Toyo and Cooper and looked more than the Pirelli. None of these tires are Super Swamper aggressive but they did well in my snowy field and I believe they would do well on the job site or going down an abandoned coal mine road in Southern West Virginia. So if you're looking for a tire with good road characteristics and still pretty aggressive off-road these Coopers are what you're looking for.

Helpful?3BOZFWL9OK0L13605106281

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