Toyo Open Country R/T LT275/65R18 E Open Country R/T
Toyo

Open Country R/T

LT275/65R18 E
All-Season M+S
$266.70/tire $355.60
Set of 4: $1066.80
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

SizeLT275/65R18 E Open Country R/T
Width275 mm
Aspect ratio65
Rim diameterR18
Load index123/120
Speed ratingQ
Ply rating10
SeasonAll-Season
Treadwear warranty45,000 miles
Tread depth16.4/32"
Weight57.8 lbs
Max pressure80 psi
Severe snow (3PMSF)No
Run-flatNo

About the Toyo Open Country R/T

All-Season Rugged-Terrain Passenger Light Truck/SUV tire. A Hybrid Design Combining the Extreme Off-Road Traction of a Mud-Terrain tire with the On-Road Traction and Comfort of an All-Terrain tire. Dual Sidewall Designs allow for Customization.

Features

* Wide shoulder grooves* Scalloped shoulder lugs* High turn-up, 3-ply polyester casing* Optimized pattern arrangement* Aggressive sidewall designs with durable sidewall compound* Stone and mud ejectors* M+S Rated* 45,000 Mile Limited Treadwear Warranty* 500 Mile Trial Offer

Benefits

* Contributes to excellent off-road traction* Prevents mud and snow buildup* Improves off-road traction by biting into the ground* Strengthens tire for excellent handling and durability, while maintaining proper load capacity* Increases tread life* Reduces noise for improved driving comfort* Protects against side impacts and has excellent cut resistance* Offers customization with two distinct looks* Removes stones and mud from grooves

Understanding the LT275/65R18 E size

In the size code 275/65R18, 275 is the section width in millimetres (about 10.8"). 65 is the aspect ratio — the sidewall height is 65% of the width, or roughly 178.8 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 32.1".

The load index 123 means each tire supports up to 3,417 lbs — about 13,668 lbs across a full set of four. The speed symbol Q certifies the tire to 99 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 R/T is built for

The Toyo Open Country R/T is an all-season tire, balancing dry grip, wet traction and tread life across spring, summer and autumn conditions. It carries an M+S (mud and snow) marking for light winter service. It is classified for rugged-terrain (r/t) (m/t & r/t - mainly lt specific) use.

Price and value

At $266.70 per tire, a full set of four costs $1066.80. That is about 26% above the average of the 185 tires we stock in this size, reflecting its position in the range. Backed by a 45,000-mile treadwear warranty, that works out to roughly $23.71 per 1,000 miles across the set.

Frequently asked questions

What does the tire size 275/65R18 mean?

275 is the section width in millimetres, 65 is the aspect ratio (sidewall height as a percentage of width, about 178.8 mm), and R18 indicates radial construction for a 18-inch wheel. Overall diameter is approximately 32.1 inches.

What are the load and speed ratings of the Toyo Open Country R/T LT275/65R18 E?

Its load index of 123 allows up to 3,417 lbs per tire. Its speed rating of Q is certified to 99 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 R/T LT275/65R18 E tires cost?

A single tire is $266.70 and a set of four is $1066.80, covered by a 45,000-mile treadwear warranty.

Does the Open Country R/T come in other sizes?

Yes — we stock 60 additional Open Country R/T sizes besides LT275/65R18 E. Fit only a size approved for your vehicle.

Other sizes of this model

Similar tires in 275/65R18