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320-80r18 tires

Radial Duraforce AT-R R-4

Designed for use on tractors, sprayers, harvesters, trailers, implement control, and other farm equipment. These tires are typically designed to reduce soil compaction, resist damage, and provide high flotation so that drivers don't sink in soft surfaces.

This product is not covered by a manufacturer’s treadlife warranty.

Mileage Warranty

The maximum carrying capacity for a tire determined by the manufacturer.

Maximum speed capability to safely carry a load for an extended period of time.

Max Speed

The side of the tire between the tread and rim, with cosmetic branding as well as information about the tire including manufacturer, model, size, etc.

Sidewall

Measured in 32nds of an inch, this metric shows how much tread life is left on a tire, with the tire's traction & stopping capabilities greatly diminished at 4/32nds and less. Tire manufacturers include "tire wear bars" at 2/32nds to indicate when your tire is worn out.

Tread Depth

An identifier of a particular tire line and size combination assigned by the tire manufacturer.

Part Number

Tire Weight

The diameter of a tire that is inflated without any load applied.

Overall Diameter

A three-peak mountain snowflake (3PMSF) symbol branded on a tire's sidewall indicates the tire meets required performance criteria in snow testing to be considered severe snow service-rated.

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320/80R18 Tires

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Firestone Radial Duraforce AT-R R-4
141A8 | In stock

Vehicle
Farm & Agricultural
Mileage Warranty
N/A
Load Index
5677 lbs (141)

Max Speed
25 MPH (A8)
Sidewall
Tubeless
Tread Depth
37/32nds
Part Number
380497
Tire Weight
120 lbs
Overall Diameter
38.1"
Three-Peak Mountain Snowflake (3PMS)
No

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320/80R18 Tires

Firestone Radial Duraforce AT-R R-4 141A8 | In stock

VehicleFarm & AgriculturalMileage WarrantyN/ALoad Index5677 lbs (141)

Max Speed25 MPH (A8)SidewallTubelessTread Depth37/32ndsPart Number380497Tire Weight120 lbsOverall Diameter38.1"Three-Peak Mountain Snowflake (3PMS)No

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Firestone Radial Duraforce AT-R R-4
141A8 | In stock

Vehicle
Farm & Agricultural
Mileage Warranty
N/A
Load Index
5677 lbs (141)

Max Speed
25 MPH (A8)
Sidewall
Tubeless
Tread Depth
37/32nds
Part Number
380497
Tire Weight
120 lbs
Overall Diameter
38.1"
Three-Peak Mountain Snowflake (3PMS)
No

Did you find what
you were looking for?