Toyo Open Country A/T III 305/50R20 XL Open Country A/T Iii
Toyo

Open Country A/T III

305/50R20 XL
All-Weather 3PMSF M+S
$330.87/tire $441.16
Set of 4: $1323.48
Minimum order: 4 tires (sizes can be mixed) ? Selling in sets of 4 is how we keep our prices this low — and a matching set keeps your car balanced and safe.
Most drivers replace all four for even wear and handling.
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Specifications

Size305/50R20 XL Open Country A/T Iii
Width305 mm
Aspect ratio50
Rim diameterR20
Load index120
Speed ratingT
Load rangeXL
SeasonAll-Weather
UTQG600 A B
Treadwear warranty65,000 miles
Tread depth13.9/32"
Weight47 lbs
Max pressure50 psi
Severe snow (3PMSF)Yes
Run-flatNo

About the Toyo Open Country A/T III

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

Features

* New tread compound and aggressive design* More evenly distributed void area* Staggered shoulder lugs* Increased lateral grooves* 3D multi-wave sipes* Stone-ejecting blocks* Carries the Three-Peak Mountain Snowflake (3PMSF) symbol* 65,000 Mile/105,000 km Treadwear Warranty (P-Metric/Euro-Metric Sizes)* 50,000 Mile/80,000 km Treadwear Warranty (LT and Flotation Sizes)* For staggered fitments, rear tires are eligible for 50% of the stated mileage warranty* 500 Miles/45 Days Trial Offer

Benefits

* Provides confident wet braking and handling* Provides cut-and-chip resistance* Provides excellent off-road grip* Delivers a quiet and comfortable ride* Enhances on and off-road traction* Increases tread block rigidity for excellent handling stability* Provides better worn appearance* Enhance off-road traction with biting edges* Enhance traction on all surfaces, including snow* Reduce irregular wear* Eject stones from grooves* Meets the required performance criteria for Use in Severe Snow Conditions

Understanding the 305/50R20 XL size

In the size code 305/50R20, 305 is the section width in millimetres (about 12"). 50 is the aspect ratio — the sidewall height is 50% of the width, or roughly 152.5 mm. R20 means radial construction on a 20-inch wheel, giving an approximate overall diameter of 32".

The load index 120 means each tire supports up to 3,086 lbs — about 12,344 lbs across a full set of four. The speed symbol T certifies the tire to 118 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 Toyo Open Country A/T III is built for

The Toyo Open Country A/T III is an all-weather tire — a year-round option certified for severe snow service, so it can stay on the vehicle through winter. It carries the three-peak mountain snowflake (3PMSF) symbol, meaning it passed a standardised severe-snow traction test. It is classified for all-terrain (a/t) use.

Tread life and grip ratings

This tire carries a UTQG rating of 600 A B. The treadwear grade of 600 is a relative durability score — a grade of 200 is expected to last roughly twice as long as a grade of 100 under the same controlled test. Traction grade A measures straight-line wet stopping grip (AA is highest, then A, B and C). Temperature grade B reflects heat resistance at sustained speed (A is highest).

Price and value

At $330.87 per tire, a full set of four costs $1323.48. That is about 21% above the average of the 18 tires we stock in this size, reflecting its position in the range. Backed by a 65,000-mile treadwear warranty, that works out to roughly $20.36 per 1,000 miles across the set.

Frequently asked questions

What does the tire size 305/50R20 mean?

305 is the section width in millimetres, 50 is the aspect ratio (sidewall height as a percentage of width, about 152.5 mm), and R20 indicates radial construction for a 20-inch wheel. Overall diameter is approximately 32 inches.

What are the load and speed ratings of the Toyo Open Country A/T III 305/50R20 XL?

Its load index of 120 allows up to 3,086 lbs per tire. Its speed rating of T is certified to 118 mph. Check your door-jamb placard and do not fit a tire rated below the vehicle's requirement.

How much does a set of 4 Toyo Open Country A/T III 305/50R20 XL tires cost?

A single tire is $330.87 and a set of four is $1323.48, covered by a 65,000-mile treadwear warranty.

Is the Toyo Open Country A/T III rated for snow?

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

Does the Open Country A/T III come in other sizes?

Yes — we stock 163 additional Open Country A/T III sizes besides 305/50R20 XL. Fit only a size approved for your vehicle.

Other sizes of this model

Similar tires in 305/50R20

Nitto NT555RII 305/50R20 NT555RII (Dot-Compliant)
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BFGoodrich ALL-Terrain T/A KO3 LT305/50R20 E ALL-Terrain T/A KO3
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