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🛞 Rule Every Terrain, Every Season — No Limits, Just Adventure!
The Cooper Discoverer STT Pro 35X12.50R17LT 121Q is a premium 10-ply radial all-season tire engineered for extreme off-road performance without sacrificing on-road traction. Featuring patented Armor Tek3 sidewall protection, Rock Climber cleats, Mud Slingers 2.0, and Stone Armor Technology, it delivers superior durability and grip across mud, rocks, and loose terrain. With a 34.57-inch diameter, 12.5-inch width, and a load capacity of 3,195 lbs, this tire is built for light trucks and SUVs demanding year-round reliability and rugged toughness.









| ASIN | B0BBWD4DG7 |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #270,816 in Automotive ( See Top 100 in Automotive ) #359 in Light Truck & SUV All-Terrain & Mud-Terrain Tires |
| Brand Name | Cooper |
| Construction Type | Radial |
| Customer Reviews | 4.7 4.7 out of 5 stars (402) |
| Global Trade Identification Number | 00029142969860 |
| Included Components | Tire Only |
| Item Diameter | 34.57 inches |
| Item Dimensions | 34.8 x 34.8 x 12.6 inches |
| Item Type Name | Tire |
| Item Weight | 69.5 pounds |
| Load Capacity | 3195 pounds |
| Load Index | 121 |
| Load Range | E |
| Manufacturer | Cooper |
| Manufacturer Part Number | 170255034 |
| Manufacturer Warranty Description | Standard Limited Warranty |
| Maximum Pressure | 65 psi |
| Model Number | 170255034 |
| OEM Equivalent Part Number | 170228011 |
| Ply | 10-Ply |
| Rim Size | 17 inches |
| Rim Width | 10 inches |
| Seasons | Year Round |
| Section Width | 12.5 millimeters |
| Size | 35X12.50R17LT 121Q |
| Spare Tire Mounting Location | Front or Rear |
| Speed Rating | Q |
| Tire Aspect Ratio | 72 |
| Tire Diameter | 34.57 |
| Tread Depth | 21 thirty_seconds_inches |
| Tread Type | Non-Directional |
| UPC | 029142969860 |
| Unit Count | 1 Count |
| Vehicle Tire ISO Metric Size Description | 317.5/35R17 |
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