CooperDiscoverer ATP IILT275 /70 R18 125S E1 RWL

Upgrade your truck or SUV with the Cooper Discoverer ATP II LT275/70R18 125S E1 RWL, an exclusive all-terrain tire built for pickups and SUVs that need confident off-road traction, wet-road control, and steady highway manners. This LT275/70R18 Discoverer ATP II is a popular fitment for select Ram 2500, Chevrolet Silverado 2500HD, GMC Sierra 2500HD, Toyota Tundra, Ford F-250, Ford F-350 models, plus similar heavy-duty pickups, work trucks, towing setups, and trail-ready SUVs using 18-inch wheels.

Best for: work trucks, overlanding builds, and weekend adventure vehicles that need year-round all-terrain confidence with LT-rated strength for towing, hauling, and rough-road use, especially in a LT275/70R18 size with 125S E1 capability.

Why choose the Cooper Discoverer ATP II in LT275/70R18?

• All-terrain traction: Alternating shoulder scallops and wide off-road shoulder tread blocks help the ATP II dig into loose terrain like dirt, mud, gravel, and sand.

• Wet and winter-road control: Wet Grip Grooves and Snow Claw technology help support grip on rainy pavement, slushy roads, and light winter conditions.

• Durability for truck use: Stone Ejector Ledges help reduce stone retention, while rugged shoulder lugs add traction in aired-down driving and help resist damage away from pavement.

• Highway stability: A solid center rib, stable tread area, interlocking sipes, and durable tread compound help deliver predictable handling and long-lasting all-terrain performance.

• Comfort and warranty: Proprietary tread block sizing and spacing support a smoother, quieter ride, and the Cooper Discoverer ATP II is backed by a 60,000-mile manufacturer's treadwear warranty.

Popular vehicle fitments for LT275/70R18 Cooper Discoverer ATP II

This tire size is commonly shopped for select trims or replacement applications of the Ram 2500, Chevrolet Silverado 2500HD, GMC Sierra 2500HD, Toyota Tundra, Ford F-250, and Ford F-350. It is also a strong all-terrain option for comparable vehicles that use the same tire size, load range, speed rating, wheel diameter, and sidewall designation.

Size and rating details

• LT275/70R18: This size is designed for 18-inch wheels and is a practical choice for drivers who need LT-rated strength for towing, hauling, off-road travel, and work-truck duty.

• 125S E1: The LT construction and 125S E1 service description are built for heavier-duty truck and SUV applications that see towing, hauling, gravel roads, and jobsite use.

• RWL: This version uses raised white lettering sidewall styling.

• Speed capability: This size carries S-rated speed capability for truck and SUV applications that balance all-terrain utility with highway use.