Cooper Discoverer AT3 XLT All-Terrain Light Truck Tire

The Cooper Discoverer AT3 XLT is a purpose-built all-terrain tire engineered for heavy-duty pickups and light trucks that demand serious off-road capability without sacrificing on-road comfort. As the most aggressive member of Cooper's celebrated Discoverer AT3 lineup, the XLT (Extreme Light Truck) variant is designed specifically for extreme hauling duties, high load ratings, and aggressive all-terrain use — backed by a Discoverer heritage spanning more than four decades.

Durable-Tread Technology:

• Silica-Infused Compound: A proprietary cut-and-chip-resistant silica compound resists tearing and damage from sharp gravel and rocky surfaces, significantly extending tread life under demanding off-road conditions
• Stone Ejector Ledges: Integrated ejector technology actively prevents stone retention and drilling, protecting the tire casing and maintaining consistent traction across all terrain types
• Rugged Traction Shoulders: Aggressive shoulder design with deep side-biting edges delivers enhanced traction for rock crawling and muddy terrain while providing added resistance to sidewall abrasion and punctures
• Secure-Grip Tread Pattern: Cooper's five-rib all-terrain pattern features zigzag sipes and deep center grooves that optimize off-road bite, improve vehicle stability, and reduce hydroplaning risk on wet roads

On-Road Comfort & Longevity:

• Whisper Grooves Technology: Specially engineered groove geometry acts as a sound barrier, channeling airflow through the footprint to reduce tread pattern noise and deliver a noticeably quieter, more refined highway ride
• Even Wear Arc Technology: Optimizes the contact patch to distribute pressure evenly across the tread face, promoting uniform wear, longer tread life, and consistent dry-road handling throughout the tire's service life
• Three-Peak Mountain Snowflake (3PMSF) Certified: Meets severe snow traction standards, while the silica compound maintains rubber flexibility and grip across a wide range of temperatures for true all-season performance

Built Cooper Tough:

• Heavy-duty multi-ply construction engineered to handle the high load ratings required for serious towing and hauling
• Available in a wide range of LT-metric and flotation sizes across multiple load ranges to suit various truck and powersports configurations
• 60,000-mile treadwear limited warranty — exceptional coverage for an aggressive all-terrain tire
• Raised White Lettering (RWL) sidewall styling available across the lineup for a bold, classic truck look
• Backed by Cooper's standard limited warranty covering defects in workmanship and materials

Whether navigating trails, rocks, mud, packed snow, or the daily commute, the Cooper Discoverer AT3 XLT delivers the versatility that working truck owners and off-road enthusiasts demand — confident all-terrain traction combined with the highway comfort, reduced noise, and long tread life expected from a premium light truck tire.