Encounter AT

About the Sumitomo Encounter AT

All-Weather All-Terrain Passenger Light Truck/SUV tire.

Features

* Non-directional 5-rib tread design* Deep circumferential grooves* Optimized tread pattern* Variable width shoulder lugs* 3D wave sipes* Carries the Three Peak Mountain Snow Flake (3PMSF) symbol* M+S Rated* 60,000 Mile/100,000 km Limited Treadwear Warranty for Metric and LT Sizes* Free 30-Day Test Drive* 2-Year, 24/7 Tire Roadside Assistance* Free Lifetime Replacement for Workmanship and Material Defects

Benefits

* Optimizes ride stability and protects against irregular wear* Boosts wet grip performance and provides superior wear life* Stabilizes handling and steering response for a smooth, quiet ride* Evacuates rocks, sand and other debris for superior off-road grip* Enhances traction and performance in snow, mud and other soft surfaces* Ensures reliable winter performance in heavy snow

Understanding the LT315/70R17 E size

In the size code 315/70R17, 315 is the section width in millimetres (about 12.4"). 70 is the aspect ratio — the sidewall height is 70% of the width, or roughly 220.5 mm. R17 means radial construction on a 17-inch wheel, giving an approximate overall diameter of 34.4".

The load index 121 means each tire supports up to 3,197 lbs — about 12,788 lbs across a full set of four. The speed symbol S certifies the tire to 112 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 Sumitomo Encounter AT is built for

It carries the three-peak mountain snowflake (3PMSF) symbol, meaning it passed a standardised severe-snow traction test.

Price and value

At $241.49 per tire, a full set of four costs $965.96. That is about 13% below the average price of the 61 tires we stock in this size. Backed by a 60,000-mile treadwear warranty, that works out to roughly $16.10 per 1,000 miles across the set.