Cooper Discoverer HT3 LT265/70R18 E Discoverer HT3
Cooper

Discoverer HT3

LT265/70R18 E
All-Season M+S
$207.74/tire $276.99
Set of 4: $830.96
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

SizeLT265/70R18 E Discoverer HT3
Width265 mm
Aspect ratio70
Rim diameterR18
Load index124/121
Speed ratingS
Ply rating10
SeasonAll-Season
Treadwear warranty50,000 miles
Tread depth14.5/32"
Weight48.69 lbs
Max pressure80 psi
Severe snow (3PMSF)No
Run-flatNo

About the Cooper Discoverer HT3

All-Season Commercial Light Truck/Van Highway Rib tire.

Features

* Four wide circumferential grooves combined with a silica compound* Continuous shoulder ribs* 3D micro-gauge™ siping* Tread design that repels stone and debris* M+S Rated* Free 45-Day Test Drive* 50,000 Mile Treadwear Protection Warranty

Benefits

* Provides better wet traction and handling* Provides superior resistance to irregular wear for longer life and a quieter ride* Helps maintain wet traction and stability* For greater traction

Understanding the LT265/70R18 E size

In the size code 265/70R18, 265 is the section width in millimetres (about 10.4"). 70 is the aspect ratio — the sidewall height is 70% of the width, or roughly 185.5 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 32.6".

The load index 124 means each tire supports up to 3,527 lbs — about 14,108 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 Cooper Discoverer HT3 is built for

The Cooper Discoverer HT3 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 highway terrain(h/t) use.

Price and value

At $207.74 per tire, a full set of four costs $830.96. That sits close to the average for the 117 tires we stock in this size. Backed by a 50,000-mile treadwear warranty, that works out to roughly $16.62 per 1,000 miles across the set.

Frequently asked questions

What does the tire size 265/70R18 mean?

265 is the section width in millimetres, 70 is the aspect ratio (sidewall height as a percentage of width, about 185.5 mm), and R18 indicates radial construction for a 18-inch wheel. Overall diameter is approximately 32.6 inches.

What are the load and speed ratings of the Cooper Discoverer HT3 LT265/70R18 E?

Its load index of 124 allows up to 3,527 lbs per tire. Its speed rating of S is certified to 112 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 Cooper Discoverer HT3 LT265/70R18 E tires cost?

A single tire is $207.74 and a set of four is $830.96, covered by a 50,000-mile treadwear warranty.

Does the Discoverer HT3 come in other sizes?

Yes — we stock 17 additional Discoverer HT3 sizes besides LT265/70R18 E. Fit only a size approved for your vehicle.

Other sizes of this model

Similar tires in 265/70R18

GT Radial Adventuro ATX LT265/70R18 E Adventuro ATX
GT Radial
Adventuro ATX
LT265/70R18 E
3PMSF
$191.99/tire
$767.96 set of 4