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Toyo Tire Open Country A/T III, LT305 /55 R20 125Q F2 BSW
Choose the Toyo Open Country A/T III LT305/55R20 125Q F2 BSW, an all-terrain tire built for drivers who want off-road traction, responsive on-road handling, wet-road confidence, severe-snow capability, and a quiet, stable ride. This LT305/55R20 Open Country A/T III is a popular LT-metric fitment for select Chevrolet Silverado 2500HD, GMC Sierra 2500HD, Ford F-350 Super Duty, Ram 3500, Ford F-250 Super Duty, Ram 2500 models, plus similar trucks and SUVs using 20-inch wheels.
Why choose the Toyo Open Country A/T III in LT305/55R20?
Built for lifted half-ton pickups, heavy-duty trucks, and overland builds: The 125Q F2 rating is built for heavier custom trucks, diesel pickups, towing setups, and large wheel-and-tire packages.
On-road comfort with off-road bite: The Open Country A/T III is designed for predictable highway handling, quiet ride quality, and confident traction on gravel, dirt, job sites, and weekend trails.
3PMSF severe-snow capability: The tire carries the three-peak mountain snowflake symbol, giving truck and SUV drivers added confidence in cold weather and winter conditions.
Durable all-terrain tread: Toyo's tread compound and design focus on wet performance, cut-and-chip resistance, off-road grip, and long treadwear life.
Trail-ready tread features: Staggered shoulder lugs, stone-ejecting blocks, increased lateral grooves, and 3D multi-wave sipes help support traction, stability, and even wear.
Popular vehicle fitments for LT305/55R20 Toyo Open Country A/T III
This tire size is commonly used on select trims or modified fitments of the Chevrolet Silverado 2500HD, GMC Sierra 2500HD, Ford F-350 Super Duty, Ram 3500, Ford F-250 Super Duty, and Ram 2500. It is also a strong option for similar pickups, Jeeps, SUVs, crossovers, and lifted builds that use the same tire size, load rating, speed rating, and wheel diameter.
Size and rating details
LT305/55R20: This size is designed for 20-inch wheels and helps shoppers match an original, plus-size, or lifted truck fitment.
125Q F2: The service description and load range identify the tire's load capability and intended truck or SUV use.
BSW: This version uses black sidewall styling for the finished look on the vehicle.
Frequently asked questions
Is the Toyo Open Country A/T III LT305/55R20 good for daily driving?
Yes. It is built for drivers who want all-terrain traction and winter confidence while still keeping road noise, comfort, and on-road stability in mind.
What vehicles use the Toyo Open Country A/T III LT305/55R20?
Popular applications include select Chevrolet Silverado 2500HD, GMC Sierra 2500HD, Ford F-350 Super Duty, and Ram 3500 models, along with comparable vehicles using the same size, load range, and speed rating.
Does the Toyo Open Country A/T III have a mileage warranty?
Yes. Toyo lists a 50,000-mile treadwear warranty for LT and flotation replacement sizes.
UNIFORM TIRE QUALITY GRADE (UTQG)Uniform Tire Quality Grade
| SECTION WIDTH Measures the width of the tire from sidewall to sidewall, which is mounted on a wheel and inflated. | 305 |
| ASPECT RATIO Determines the sidewall height of the tire, based on the width. | 55 |
| RIM DIAMETER Measures the rim size from top to bottom (in inches). | 20" |
| OVERALL DIAMETER Measures the tire height from top to bottom when mounted on a wheel and inflated. | 33.23" |
| RIM WIDTH RANGE The approved range of rim widths this tire can be safely mounted on. | 9.0" - 11.0" |
| WEIGHT The weight of the tire measured in pounds (weight of tire only). | 67 LBS |
| TREAD DEPTH Measured in /32 of an inch to determine the height of the tread block from top to bottom. | 17/32" |
| LOAD INDEX Determines the weight a tire can carry at maximum air pressure. See load Index chart. | 125 |
| LOAD RANGE Determines the ply rating of the tire. Should be replaced with the same or higher rating. | F2 |
| MAX PSI The max psi is the highest pressure the tire can hold, but should be inflated to your vehicle specifications not exceeding this amount. | 80 PSI |
| SPEED RATING Designation from laboratory testing to determine the maximum speed the tire can travel. Maintain the same speed rating or higher for replacement. | Up to 100 mph |
| SIDEWALL DESC. The sidewall designation to describe the lettering on the sidewall. | Black Side Wall |
| WARRANTY Estimates the life expectancy of the tire, set by the tire manufacturer. | 50000 |
| VPN Vendor Product Number | 355320 |
| GTIN Global Trade Item Number | 4981910527312 |
Open Country A/T III Customer Reviews
I will definitely buy again
Tires are great for off road and snow. True they are not as quiet nor soft as normal Rover tires. Reason I bought them is for control and grip when off roading. Absolutely recommend them for those who want to use Land Rover for being a beast Off Road.
Best tires for being forced to get to work in a level 3 snow emergency
35x12.50x17 Load C 4 door jeep Rides fine
Fabulous Tires!