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Discoverer Rugged Trek LT
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Specifications
| Size | LT275/65R18 E Discoverer Rugged Trek LT |
|---|---|
| Width | 275 mm |
| Aspect ratio | 65 |
| Rim diameter | R18 |
| Load index | 123/120 |
| Speed rating | Q |
| Ply rating | 10 |
| Season | All-Season |
|---|---|
| Treadwear warranty | 55,000 miles |
| Tread depth | 19/32" |
| Weight | 55.35 lbs |
| Max pressure | 80 psi |
| Severe snow (3PMSF) | No |
| Run-flat | No |
About the Cooper Discoverer Rugged Trek LT
Mud-Terrain Passenger Light Truck/SUV tire.
Features
* Dual off-road sidewalls, both sides offering long, deep cleats* Earth Diggers™ Technology with large shoulder scoops and lugs* Jutting ridges expel lodged stones* Stable Trac™ Technology - omni-directional, micro-gauge siping* Whisper Grooves™ Technology - specially designed sound barrier walls* M+S Rated* Free 45-Day Test Drive* 55,000 Mile Limited Treadwear Warranty - (LT sizes)
Benefits
* Enhance off road traction* Combine to forcefully dig into dirt, sand and mud* Protect against damage from sharp rocks* Enhances traction on roads and rough surfaces, improving stability and control* Reduce road noise
Understanding the LT275/65R18 E size
In the size code 275/65R18, 275 is the section width in millimetres (about 10.8"). 65 is the aspect ratio — the sidewall height is 65% of the width, or roughly 178.8 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 32.1".
The load index 123 means each tire supports up to 3,417 lbs — about 13,668 lbs across a full set of four. The speed symbol Q certifies the tire to 99 mph under its rated load. Always match or exceed the load index and speed rating listed on your vehicle's door-jamb placard.
What the Cooper Discoverer Rugged Trek LT is built for
The Cooper Discoverer Rugged Trek LT is an all-season tire, balancing dry grip, wet traction and tread life across spring, summer and autumn conditions. It carries an M+S (mud and snow) marking for light winter service. It is classified for mud-terrain (m/t) use.
Price and value
At $260.24 per tire, a full set of four costs $1040.96. That is about 23% above the average of the 185 tires we stock in this size, reflecting its position in the range. Backed by a 55,000-mile treadwear warranty, that works out to roughly $18.93 per 1,000 miles across the set.
Frequently asked questions
What does the tire size 275/65R18 mean?
275 is the section width in millimetres, 65 is the aspect ratio (sidewall height as a percentage of width, about 178.8 mm), and R18 indicates radial construction for a 18-inch wheel. Overall diameter is approximately 32.1 inches.
What are the load and speed ratings of the Cooper Discoverer Rugged Trek LT LT275/65R18 E?
Its load index of 123 allows up to 3,417 lbs per tire. Its speed rating of Q is certified to 99 mph. Check your door-jamb placard and do not fit a tire rated below the vehicle's requirement.
How much does a set of 4 Cooper Discoverer Rugged Trek LT LT275/65R18 E tires cost?
A single tire is $260.24 and a set of four is $1040.96, covered by a 55,000-mile treadwear warranty.
Does the Discoverer Rugged Trek LT come in other sizes?
Yes — we stock 31 additional Discoverer Rugged Trek LT sizes besides LT275/65R18 E. Fit only a size approved for your vehicle.