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🛻 Tough looks, quiet rides, unstoppable adventures.
The Cooper Discoverer Rugged Trek 255/70R18XL 116T tire combines aggressive off-road capability with refined on-road comfort. Featuring dual sidewall designs, 30% deeper tread, and Stone Blockades, it delivers superior grip and protection on rough terrain. Certified for severe weather and backed by a 60,000-mile treadwear warranty, this tire is engineered for durability, quiet performance, and year-round confidence.









| ASIN | B091DF6N41 |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #113,427 in Automotive ( See Top 100 in Automotive ) #84 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 356 Reviews |
| Global Trade Identification Number | 00029142951186 |
| Included Components | Tire Only |
| Item Diameter | 32.4 Inches |
| Item Dimensions | 32.1 x 32.1 x 10.2 inches |
| Item Type Name | Tire |
| Item Weight | 45 Pounds |
| Load Capacity | 2756 Pounds |
| Load Index | 116 |
| Load Range | XL |
| Manufacturer | Cooper |
| Manufacturer Part Number | 171104005 |
| Manufacturer Warranty Description | 60,000 Mile Treadwear |
| Maximum Pressure | 50 Pound per Square Inch |
| Model Number | 171104005 |
| OEM Equivalent Part Number | 90000038359 |
| Ply | 4-Ply |
| Rim Size | 18 Inches |
| Rim Width | 7.5 Inches |
| Seasons | Year Round |
| Section Width | 255 Millimeters |
| Size | 255/70R18XL 116T |
| Speed Rating | T |
| Tire Aspect Ratio | 70 |
| Tire Diameter | 32.44 |
| Tread Depth | 16 32nds |
| Tread Type | Non-Directional |
| UPC | 029142951186 |
| Unit Count | 1.0 Count |
| Vehicle Tire ISO Metric Size Description | 255/70R18 |
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
J**H
Tires
Fantastic tires. Very pleased with them on and off road and appearance.
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
B**.
What to expect
Good ride an great traction on loose gravel not to loud when running them on the road
J**K
Good price, good quality and rides good on pavement
I got a set of 265/70/17 on a 2011 Toyota Tacoma. The tread is pretty aggressive. A little chunkier than I expected, but I will put them to use. Even so, the tires still fit the stock rims without any rubbing even with articulation. Road noise… minimal. My old K02s were far worse. No bouncing and my tire guy got them balanced the first time. I haven’t taken them off road yet, but very pleased so far.
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.
M**.
Great daily driver tires
Too bad these were discontinued, Great tire for the price!
C**T
Traction and Road Noise
I've had these tires installed on my all wheel drive Jeep Commander with a 4" lift for right at 20,000 miles so far. As for traction, I drive 80 miles of interstate, and 20 miles of limestone gravel roads every day. On weekends, I kayak and fish. These tires offer excellent all around traction and stability with very minimal "chunking" from the gravel. Work very well on wet pavement also with very little pull or wandering. Road noise on the interstate/highway is about a 5 out of 10. Part of this may be the all wheel drive, but I do rotate every 6,000 miles, and there is no cupping or abnormal wear to the tires, just the wide tread pattern makes them noticeable if the stereo isn't playing. Although, the road noise is better with these than the BFG KO2's or the Micky's I was running before. At 20,000 miles, and the rock roads I travel, I am estimating I will get about 45,000-55,000 miles out of the tread, that's doing really well for me compared to the last BFG's and Micky's I was running. I'd recommend these tires if you don't mind a little "Highway Hum" in a quiet cabin.
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
1 month ago