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340-80r18 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.

Load Index

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

8 tires available in 340-80r18

In Size 340-80r18

Most popular among drivers in PA

Best seller:

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Multi Use 550

Off-the-road (OTR) tires are built for vehicles like skid steer loaders, cranes, construction dump trucks, graders and other heavy-duty construction and industrial vehicles. OTR tires are incredibly tough and able to carry massive loads on soft or rough surfaces without sinking in.

Consistently rated as excellent by experts with the highest SimpleScore among the top 5 tires.

Top SimpleScore&trade;:

Chosen by our tire experts.

Save on this  tire today.

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Ride Max IT 696 Radial Tractor

The maximum carrying capacity for a tire determined by the manufacturer  
                (Single wheel applications / Dual wheel applications).

The highest inflation pressure (measured in pounds of force per square inch, PSI) the tire is designed to contain, and should only be used when called for by the vehicle placard.

Inflation Pressure

The measurement of width from a tires inner sidewall to the outer sidewall.

Section Width

With similar, but improved specs to the factory tire

Best match:

Best match to original tire

Multi Tough

Built for use on industrial applications such as skid steer loaders, forklifts, mining equipment, and so on. Industrial tires are strong enough to carry their vehicle's weight, and tough enough to withstand heavy usage and damage from off-road debris.

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340/80R18 firestone Tires

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Maximum Load Index

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Firestone Radial Duraforce AT-R R-4
340/80R18 143B | In stock

Vehicle
Farm & Agricultural
Mileage Warranty
N/A
Load Index
6008 lbs (143)

Max Speed
31 MPH (B)
Sidewall
Tubeless
Tread Depth
38/32nds
Part Number
375975
Tire Weight
129 lbs
Overall Diameter
39.4"

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340/80R18 firestone Tires

Firestone Radial Duraforce AT-R R-4340/80R18 143B | In stock

VehicleFarm & AgriculturalMileage WarrantyN/ALoad Index6008 lbs (143)

Max Speed31 MPH (B) SidewallTubeless Tread Depth38/32nds Part Number375975 Tire Weight129 lbs Overall Diameter39.4"

Join the SimpleCrew and get exclusive perks.

Did you find what you were looking for?

Firestone Radial Duraforce AT-R R-4
340/80R18 143B | In stock

Vehicle
Farm & Agricultural
Mileage Warranty
N/A
Load Index
6008 lbs (143)

Max Speed
31 MPH (B)
Sidewall
Tubeless
Tread Depth
38/32nds
Part Number
375975
Tire Weight
129 lbs
Overall Diameter
39.4"

Did you find what
you were looking for?