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The Cooper Discoverer S/T Maxx LT275/70R18 tire is a 10-ply, all-season commercial traction tire designed for light trucks and high-torque vehicles. Featuring Armor Tek3 sidewall and tread reinforcement, cut and chip resistant tread compound, and stone ejector ribs, it delivers exceptional durability and off-road performance without sacrificing on-road stability and low noise. Rated for heavy loads up to 3,640 lbs and optimized for year-round use, it’s engineered to dominate tough terrains while maintaining highway comfort.









| ASIN | B006JYHE8M |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #154,988 in Automotive ( See Top 100 in Automotive ) #183 in Light Truck & SUV All-Terrain & Mud-Terrain Tires |
| Brand | Cooper |
| Brand Name | Cooper |
| Construction Type | Radial |
| Customer Reviews | 4.6 out of 5 stars 324 Reviews |
| Global Trade Identification Number | 00029142720515, 00291427205158 |
| Included Components | Tire Only |
| Item Diameter | 33.39 inches |
| Item Dimensions | 7.58 x 33.16 x 10.83 inches |
| Item Highlight | Light Truck All Terrain All Season Traction 125/122Q Rated E 10 Ply Radial Construction Black Sidewall Tire |
| Item Type Name | Tire |
| Item Weight | 60.7 pounds |
| Load Capacity | 3640 pounds |
| Load Index | 125 |
| Load Range | E |
| Manufacturer | Cooper |
| Manufacturer Part Number | 170070004 |
| Manufacturer Warranty Description | Standard Limited Warranty |
| Maximum Pressure | 80 psi |
| Model Number | 170070004 |
| OEM Equivalent Part Number | COOP-90000003099 |
| Ply | 10-Ply |
| Rim Size | 18 inches |
| Seasons | Year Round |
| Section Width | 27.5 centimeters |
| Size | LT275/70R18 125/122Q |
| Speed Rating | Q |
| Tire Aspect Ratio | 70 |
| Tire Diameter | 33.39 |
| Tread Depth | 18.5 thirty_seconds_inches |
| Tread Type | Asymmetrical |
| UPC | 826825961926 029142720515 291427205158 826825961933 |
| Unit Count | 1 Count |
| Vehicle Tire ISO Metric Size Description | 275/70R18 |
C**.
Fast delivery, fair price!
Product arrived quickly and was exactly what we wanted
S**N
Best tires I have owned!
I live up in Saskatchewan. I do a bit of open country snaring for problem coyotes and we typically have a lot of snow. I had nothing but trouble with a set of ALL SEASON tires. Probably dug myself out 40-50 times. I picked up some of these on the recommendation of a local tire dealer. I was presently surprised how quiet they are considering the aggressiveness of the tread. Well like a little by in a candy store I decided to give them a whirl. The snow was 14-16" with a hard pack crust on top of about 4". Weather was +5 celcius so there was some shush and melting. A perfect test scenario. I put my RAM in 4 wheel low and did about a 600 yard loop in the field. I travelled small rolling hills and I stayed out of the bottoms where I could see the snow was much deeper, about 2 to 4 feet. Well I did the loop and I could hardly see anything outside the truck for flying snow and ice chunks. I decided to stop and slow down and NOT use momentum when I got back close to the entrance of the field. I checked the tires and there was NO snow buildup it was 100% self cleaned. I slowly trudged through the rest of the field with no problem at all. My buddy asked if I had a shovel along in case and I did but didn't even com close to needing to use it. I only have 1000km on them but they are awesome.
R**K
Cooper ST MAXX
You can't run these lower than 45psi for load D and 60psithey for load E. Having read this on other sites, I was not worried. I have a F350 and haul heavy loads so I run load E with 75the psi. These tires have performed to the 'MAXX'. Across fields fully loaded, highways or back road, mud and snow. I hated paying the price but after 3500 miles of solid abuse there are no chunks, odd wear, or sidewall issues. THESE ARE GREAT TIRES!!!!!!
Y**P
Great
Great tire just put some on the jeep. Suprisingly quiet for how aggressive the tread is. I recomend. Haven't been off road with them yet but they look aggressive enough to handle dirt and mud pretty easy.
P**7
BAD TIRES
I bought Cooper Discoverer ST Maxx tires 1 year ago and have only put 8000 miles on them. They are great for getting through mud or snow or anything but they are all cracking along the rims and all have to be replaced. They are 285/70/17 so the price to replace them is about $1200. I do not recommend these tires.
W**.
Great product but inspect what you get from Amazon!
The tires are AWESOME! I am running them on a 2013 Jeep Wrangler Sport with a 2.5" lift. They look awesome, they are extremely quiet (even with the top off) and the traction is fantastic. They are as aggressive as any MT tire I considered with none of the draw backs. I have put almost 1,000 miles on the tires since I put them on the Jeep and I have no complaints. We have had a VERY wet spring and these things shed water like crazy. If you are considering these tires, stop considering and start buying! My only complaints had nothing to do with the tires, they were issues with Amazon. The issues were as follows: 1) I ordered five tires. I was billed for each tire individually instead of all at once. 2) The tires all came from different locations around the country and arrived at different times. 3) Three of the tires I received were visibly worn and cupped! I immediately called Amazon and they paid to ship them back and the same day shipped me out three new ones. This ended up delaying mounting them by about two weeks.
A**N
Great tire
Have these tires on my 2020 3500 Denali dually, great ride quality and very minimal road noise. Have around 55,000 miles (mostly towing a 40' flatbed gooseneck) on them now and they are about 30% tread. Will be buying the same tires again!
N**E
only had them a few weeks....Ford F250 diesel
I like the tires a lot. I'm going from a mix of 2 Firestone transforce HT and 2 General Grabber TR tires to these, so very different style tires, handling characteristics, etc. I wanted a more aggressive tire than just halfway between an all-season highway and all terrain on/off pavement tire. pros: GREAT tread pattern; very deep tread, aggressive but not so incredibly aggressive ("Mud tires") that you can't hear over their noise at highway speed--they are surprisingly quiet at 70+ mph. Also, they are much better at soaking up big bumps than the firestone/general tires. Much better. Even little bumps were unpleasant. Same bumps, same pressure in the tires. These tires are plenty aggressive though; the pics don't do them justice. In person, they really look more like mud tires than the pics. Cons: They don't handle as well. This is pretty much to be expected, from what I read about aggressive tires. I am just making myself take sharp turns a little slower. I'm not going back to all season tires. This is a real truck.
J**S
Great so far at 3,000km
She pulled through during the great snow of Sask 2024 on the hwy at 120k no problem.
D**.
Ottima tenuta di strada su bagnato
Ottimo prodotto qualita’ prezzo Ottimo in fuoristrada su hummer h3
Trustpilot
1 week ago
3 weeks ago