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🛻 Rugged looks, refined ride — conquer every mile in style.
The Cooper Discoverer Rugged Trek 275/60R20 115T tire blends aggressive off-road capability with on-road comfort. Featuring dual sidewall designs, a 60,000-mile treadwear warranty, and severe weather certification, it delivers durable traction and a quiet ride for SUVs and pickup trucks all year long.









| ASIN | B091DCZQW7 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #157,453 in Automotive ( See Top 100 in Automotive ) #182 in Light Truck & SUV All-Terrain & Mud-Terrain Tires |
| Brand | Cooper |
| Brand Name | Cooper |
| Construction Type | Radial |
| Customer Reviews | 4.7 out of 5 stars 361 Reviews |
| Global Trade Identification Number | 00029142938095 |
| Included Components | Tire Only |
| Item Diameter | 33 Inches |
| Item Dimensions | 33 x 33 x 10.8 inches |
| Item Type Name | Tire |
| Item Weight | 46.6 Pounds |
| Load Capacity | 2679 Pounds |
| Load Index | 115 |
| Load Range | SL |
| Manufacturer | Cooper |
| Manufacturer Part Number | 171107005 |
| Manufacturer Warranty Description | 60,000 Mile Treadwear |
| Maximum Pressure | 44 Pound per Square Inch |
| Model Number | 171107005 |
| OEM Equivalent Part Number | COOP-90000036534 |
| Ply | 4-Ply |
| Rim Size | 20 Inches |
| Rim Width | 8 Inches |
| Seasons | Year Round |
| Section Width | 275 Millimeters |
| Size | 275/60R20 115T |
| Speed Rating | T |
| Tire Aspect Ratio | 60 |
| Tire Diameter | 33.39 |
| Tread Depth | 16 32nds |
| Tread Type | Non-Directional |
| UPC | 029142938095 |
| Unit Count | 1.0 Count |
| Vehicle Tire ISO Metric Size Description | 275/60R20 |
L**K
Purchased from purely power sports 35/12.5/20
Ordered these tires on Tuesday and they arrived on Thursday via FedEx. Amazingly fast, authentic and exactly as described. Thank you thank you! Will update performance at a later date but maaaaan do these look tough 💪 Ok, I'm back. Balanced well. Roll smooth. Surprisingly quiet. Hold the road. Look badass. Amazing tires and they're F rated. Did i mention they look badass? If you're shopping for tires, look no further fellas. You won't be sorry
M**A
Best tires yet!
Great tires for great price deal. Smooth ride. I was skeptical if would be loud and hard too balance like others was saying but i was wrong. And the looks of it on my suv looks badass. 🤙🏼
B**Y
Impressive to say the least
***UPDATED*** Mother Nature finally allowed me to get a better idea about these tires. I have so far run them through deep mud, heavy rain (1” an hour or heavier), dry roads and on mild rocks. No sand or snow here in Central Arkansas this time of year. So I haven’t aired these down at all, been 36 psi. In the wet these are great. Plenty of contact in heavy rain to provide a feeling of confidence at hwy speed. In the dry these are VERY quiet for such an aggressive tread. I have honestly had more tire noise from some AT tires. In the dirt and rocks these take everything I throw at them and want more. I easily scrambled over everything I encountered on the trails. In the mud these tires clean themselves out nicely. I had no caking as I rolled through mud about 1-2” deep. I am very pleased with these tires. Worth every penny I spent and will gladly buy again. Hope this helps y’all a little. I will update snow when winter comes around again. For now, kudos to cooper for a great set of tires
A**R
Cooper rugged trek tires
These tires are great you really get 60 thousand miles from them and wear even going on my second set now great deal
K**P
Actually improved the ride of my 2021 King Ranch, over the factory tires
Amazed that a tire this aggressive improved the ride quality of my KR this much. Didn't realize how crappy the GY Kevlar tires that came on the truck are, until I strapped these bad boys on. Water-bottles used to vibrate in the cup-holders with the slightest of imperfections in the roads. Small expansion joints would nearly jar you. I was so disappointed in the ride quality of my 70,000 dollar luxury f150. I mean, you'd feel everything. Those tires only had 25k on them, but my wife curbed one and ruined the tire, and so I decided to go with something better looking, and more capable in the snow...never giving consideration to an upgrade in ride quality. Had them to the same 38psi as my stock tires, and the first trip up the road from where I had them mounted, what was instantly obvious was I wasn't feeling all of those little road imperfections any longer! All those annoying little rattles in the interior were gone! I was like, WTF?! Instantly I liked my truck again! I'm just blown away by the fact that I went to a more aggressive tire and got a major ride quality upgrade. I can hear them more, but just barely. Mostly at about 55 to 65 MPH, but it's actually an enjoyable light roar...nothing obnoxious like a mud tire. Gonna stick with these for the life of this truck, so if they are still made when needed, I will likely replace them about 4 more times, as I run trucks until they are no more. Can't attest to the mileage, as I've only put about 15,000 on them so far...we travel the country, a bunch, so it won't take long before I can give an idea as to how they wear. So far, they still look new.
J**H
Tires
Fantastic tires. Very pleased with them on and off road and appearance.
B**.
What to expect
Good ride an great traction on loose gravel not to loud when running them on the road
D**.
fit my 2016 silverado perfevtly,could not be more pleased,fast shipping too
really like these tires,only have about 200 miles on them so no idea on how they will wear, they look great on my chevy, balanced easily,went out in a rain storm and they were as good or better then the factory tires. cant wait for some snow! was really amazed how fast they were shipped....i really like these tires and the seller. Update: i purchased these 12/22 it is now 8/24 the above review was apparently never submitted ,but i do stand by what i said. now a little under 2 years of running them i felt i should update. only put about 6000 miles on them,but the performance in the rain is fantastic,not very much snow over the winter,but we had 10" once and did not even need to pu it in 4x4. i did just to keep the frt.diff. lubed,but it was not needed. absolutely love these tires,may buy another set just to have on hand in case i live longer then i expect..lol rarely leave reviews, but i had to ,probably the best item i ever purchased from amazon. hardly any wear at all,and still very quiet.
B**D
Tires size is good and delivery fast
This tires is really good and holds on to the road.
K**Y
They’re okay
It’s definitely aggressive looking but it is a bit loud.
Trustpilot
1 month ago
2 days ago