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🛞 Rule Every Terrain, Every Season — Tire Tech That Means Business
The Cooper Discoverer STT Pro 35X12.50R20LT 121Q is a premium all-season off-road tire designed for extreme performance and durability. Featuring patented Armor Tek3 sidewall technology, advanced tread patterns like Climber Cleats and Mud Slingers 2.0, and Stone Armor channels, it delivers superior traction and resistance to damage across diverse terrains. With a 35-inch diameter, 10-ply radial construction, and a 3,195-pound load capacity, this tire is engineered to empower serious off-road enthusiasts without sacrificing on-road control.









| ASIN | B017XTWD0U |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #274,501 in Automotive ( See Top 100 in Automotive ) #343 in Light Truck & SUV All-Terrain & Mud-Terrain Tires |
| Brand Name | Cooper |
| Construction Type | Radial |
| Customer Reviews | 4.5 4.5 out of 5 stars (250) |
| Global Trade Identification Number | 00029142829751, 00781787879538 |
| Included Components | Tire Only |
| Item Diameter | 34.69 Inches |
| Item Dimensions | 34.69 x 34.69 x 12.4 inches |
| Item Type Name | Tire |
| Item Weight | 68.87 Pounds |
| Load Capacity | 3195 Pounds |
| Load Index | 121.0 |
| Load Range | E |
| Manufacturer | Cooper |
| Manufacturer Part Number | 170128006 |
| Manufacturer Warranty Description | Standard Limited Warranty |
| Model Number | 170128006 |
| OEM Equivalent Part Number | COOP-90000023673 |
| Ply | 10-Ply |
| Rim Size | 20 Inches |
| Rim Width | 10 Inches |
| Seasons | Year Round |
| Section Width | 12.5 Inches |
| Size | 35X12.50R20LT 121Q |
| Spare Tire Mounting Location | Front or Rear |
| Speed Rating | O |
| Tire Aspect Ratio | 12.5 |
| Tire Diameter | 35 Inches |
| Tread Depth | 21 32nds |
| Tread Type | Non-Directional |
| UPC | 029142829751 781787879538 |
| Unit Count | 1.0 Count |
| Vehicle Tire ISO Metric Size Description | 889/12.50R20 |
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