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🛞 Rugged style meets all-season performance—drive bold, drive confident.
The Cooper Discoverer Rugged Trek LT285/70R17 121Q is a 33-inch, 10-ply all-season tire engineered for pickup trucks and SUVs. Featuring dual aggressive sidewall designs, 30% deeper tread, and advanced Stone Blockades, it delivers superior off-road traction and protection. Whisper Grooves technology ensures a quiet ride on wet roads, backed by a 55,000-mile treadwear warranty for long-lasting performance.








| ASIN | B091DBLMQY |
| Automotive Fit Type | Universal Fit |
| Brand Name | Cooper |
| Construction Type | Radial |
| Customer Reviews | 4.7 4.7 out of 5 stars (192) |
| Global Trade Identification Number | 00029142938934 |
| Included Components | Tire Only |
| Item Diameter | 32.2 Inches |
| Item Dimensions | 81 x 81 x 28.2 centimeters |
| Item Type Name | Tire |
| Item Weight | 47.05 Pounds |
| Load Capacity | 1285.03 kg |
| Load Index | 117 |
| Manufacturer | Cooper |
| Manufacturer Part Number | 171106005 |
| Maximum Pressure | 50 Pound per Square Inch |
| Model Number | 171106005 |
| OEM Equivalent Part Number | 90000036538 |
| Ply | 4-Ply |
| Rim Size | 20 Inches |
| Rim Width | 8.5 Inches |
| Seasons | Year Round |
| Section Width | 275 Millimeters |
| Size | 275/55R20XL 117T |
| Speed Rating | T |
| Tire Aspect Ratio | 55 |
| Tire Diameter | 32.17 |
| Tread Depth | 16 32nds |
| Tread Type | Non-Directional |
| UPC | 029142938934 |
| Unit Count | 1 Count |
| Vehicle Tire ISO Metric Size Description | 275/55R20 |
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