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🛞 Rule Every Terrain, Every Season — No Limits, Just Traction!
The Cooper Discoverer STT Pro 37X13.50R20LT is a premium 10-ply radial tire engineered for extreme all-season off-road performance. Featuring patented Armor Tek3 sidewall technology and Stone Armor tread design, it delivers superior durability and traction on mud, rocks, and loose terrain while maintaining reliable on-road handling. With a 3,860 lb load capacity and 65 psi max pressure, this tire is built to empower light truck and SUV drivers who demand rugged versatility and long-lasting toughness.









| ASIN | B017XTZ3Y8 |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #183,135 in Automotive ( See Top 100 in Automotive ) #204 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 | 00029142829829, 00781787878449 |
| Included Components | Tire Only |
| Item Diameter | 36.85 inches |
| Item Dimensions | 36.85 x 36.85 x 13.3 inches |
| Item Type Name | Tire |
| Item Weight | 84.1 pounds |
| Load Capacity | 3860 pounds |
| Load Index | 127 |
| Load Range | E |
| Manufacturer | Cooper |
| Manufacturer Part Number | 170134006 |
| Manufacturer Warranty Description | Standard Limited Warranty |
| Maximum Pressure | 65 psi |
| Model Number | 170134006 |
| OEM Equivalent Part Number | COOP-90000023690 |
| Ply | 10-Ply |
| Rim Size | 20 inches |
| Rim Width | 11 inches |
| Seasons | Year Round |
| Section Width | 13.5 inches |
| Size | 37X13.50R20LT 127Q |
| Spare Tire Mounting Location | Front or Rear |
| Speed Rating | Q |
| Tire Aspect Ratio | 13.5 |
| Tire Diameter | 37 inches |
| Tread Depth | 21 thirty_seconds_inches |
| Tread Type | Non-Directional |
| UPC | 029142829829 781787878449 |
| Unit Count | 1 Count |
| Vehicle Tire ISO Metric Size Description | 370/13.5R20 |
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