








🛞 Conquer every road and rock with the tire that means business.
The Cooper Discoverer S/T Maxx 35X12.50R20LT 121Q is a commercial-grade, all-season radial tire designed for light trucks and high-torque vehicles. Featuring a 35-inch diameter, 3-ply Armor Tek3 construction, and a cut-and-chip resistant tread compound, it delivers exceptional durability and traction on tough terrains like rocks and gravel while maintaining on-road stability and low noise. Stone ejector ribs prevent debris retention, and the tire supports heavy loads up to 3,195 lbs at 65 PSI, making it the ultimate choice for professionals demanding reliability and performance year-round.




| Brand | Cooper |
| Size | 35X12.50R20LT 121Q |
| Section Width | 12.5 Inches |
| Load Capacity | 3195 Pounds |
| Tread Depth | 19 32nds |
| Tread Type | Non-Directional |
| Maximum Pressure | 65 Pound per Square Inch |
| Rim Width | 10 Inches |
| Tire Diameter | 35 Inches |
| Item Diameter | 34.7 Inches |
| Item Weight | 67.8 Pounds |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 291428028602 |
| Vehicle Tire ISO Metric Size Description | 350/125R20 LT |
| Unit Count | 1.0 Count |
| Construction Type | Radial |
| Manufacturer | Cooper Tire & Rubber Co. |
| Model | DISCOVERER S/T MAXX |
| Item Weight | 67.8 pounds |
| Item model number | 170081004 |
| Is Discontinued By Manufacturer | Yes |
| Exterior | BSW: Black Side Wall |
| Manufacturer Part Number | 170081004 |
| Special Features | tread_wear_indicator |
A**R
great performance tire
great tire - good value long life-look great - delivered on time
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!
B**K
Perform well and quiet
Purchased these in 35-12.50r20. Balanced perfectly, smooth ride, performs well in snow and rain. Will buy again.
H**0
Wobble Wobble
The only complaint I have about these tires is ; they get flat spots from sitting a day or more. They were hard to balance to begin with and after getting them as good as it gets, they get flat spots after a day or so of not driving my truck and then of course you have to get them warmed up before you get a smooth ride. Price, Value, Looks, Functionality ; everything else is on point!
A**Y
Good tires
Great tires with good traction
V**H
Great tire
Amazingly quiet tire on the hwy and greathandling on wet road conditions even though this Cooper all season tire has an aggressive lug pattern. 100% satisfied with my purchase all though I have less than a 1000 miles on them.
P**O
Good quality
Very good price
O**1
Great purchase!
Very happy. Fast shipping. We've bought 2 fulls sets complete with spares. Will buy again.
Trustpilot
2 weeks ago
4 days ago