2023-2026
2017-2022
2011-2016
2008-2010
1999-2007
Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
Installation Guides
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Cooper Discoverer HT3 Tire (33" - LT275/70R18)
Item SD68399
Our Price
$290.99 each
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Tire
- Tire Size: LT275/70R18 (Approx. 33.2-Inch Diameter)
- Load Range E – 10 Ply Rating
- Service Description: 125/122R
- Max Load: 3,640 lbs (Single) / 3,307 lbs (Dual)
- Max Inflation Pressure: 80 PSI
- Sidewall: Black Side Wall
- Tread Depth: 16/32-Inch
- Four Wide Circumferential Grooves for Wet Traction
- Continuous Shoulder Ribs to Resist Irregular Wear
- Stone-Ejector Tread Design for Debris Repulsion
- Optimized for Highway Stability and Comfort
- DOT Approved for Highway Use
- Radial Construction
- One-Hour Installation
- Fifty-Thousand-Mile Treadwear Warranty
- Universal Fitment
| Brand | Cooper |
| Tire Model | Discoverer HT3 |
| Tire Type | All-Terrain |
| Tire Size | 33" - 275/70R18 |
| Tire Diameter | 33 |
| Tire Load Index | 125 (3638 lbs per tire) |
| Tire Load Rating | E |
| Tire Tread Depth | 15/32" |
| Tire Revs Per Mile | 608 |
| Tire Speed Rating | (S) Up to 112mph |
| Tire Weight | 50.59 |
Description
Highway-Optimized Performance. The Cooper Discoverer HT3 Tire (33" - LT275/70R18) is designed for hardworking highway applications, delivering precise steering and smooth handling across long distances. Its advanced construction resists wear from frequent starting and stopping, making it ideal for commercial fleets and daily drivers who demand consistent performance on pavement.
Long Tread Life. Built with continuous shoulder ribs, the Cooper Discoverer HT3 Tire (33" - LT275/70R18) resists irregular wear and promotes even tread distribution. This design extends the life of the tire, reducing the frequency of replacements and lowering long-term operating costs. Cooper backs this durability with a 50,000-mile treadwear warranty, giving drivers peace of mind and dependable mileage.
Quiet, Comfortable Ride. Engineered for reduced road noise, the Cooper Discoverer HT3 Tire (33" - LT275/70R18) offers a quiet ride that enhances cabin comfort. Its tread pattern minimizes vibration and sound, making it an excellent choice for drivers who spend long hours on the road and value a peaceful driving experience.
Installation. Putting this Cooper Discoverer HT3 Tire (33" - LT275/70R18) on your vehicle takes 1 hour to install.
Warranty. There is a 50,000-mile treadwear warranty on this product.
Application. The Cooper Discoverer HT3 Tire (33" - LT275/70R18) offers universal fitment.
Cooper 90000008309
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Tire
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Customer Reviews (1)
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