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8-18 tires

1630 R1

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 maximum load carrying strength at the specified inflation pressure, also known as ply rating.

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

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

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

Part Number

Tire Weight

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

Section Width

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.

Three-Peak Mountain Snowflake (3PMS)

4 tires available in 8-18

In Size 8-18

With similar, but improved specs to the factory tire

Best match:

Best match to original tire

TR 171

The range of widths the rim of the vehicle can be for this tire to be safely mounted on.

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8/18 agstar Tires

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Agstar 1630 R1
8-18 100A6 D | In stock

Vehicle
Farm & Agricultural
Mileage Warranty
N/A
Load Index
1764 lbs (100)

Max Speed
19 MPH (A6)
Load Range
D (8 Ply)
Sidewall
Tube-Type
Tread Depth
33/32nds
Inflation Pressure
38 PSI
Part Number
329106625
Tire Weight
28 lbs
Section Width
7.5"
Overall Diameter
33.3"
Three-Peak Mountain Snowflake (3PMS)
No

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8/18 agstar Tires

Agstar 1630 R18-18 100A6 D | In stock

VehicleFarm & AgriculturalMileage WarrantyN/ALoad Index1764 lbs (100)

Max Speed19 MPH (A6)Load RangeD (8 Ply)SidewallTube-TypeTread Depth33/32ndsInflation Pressure38 PSIPart Number329106625Tire Weight28 lbsSection Width7.5"Overall Diameter33.3"Three-Peak Mountain Snowflake (3PMS)No

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Agstar 1630 R1
8-18 100A6 D | In stock

Vehicle
Farm & Agricultural
Mileage Warranty
N/A
Load Index
1764 lbs (100)

Max Speed
19 MPH (A6)
Load Range
D (8 Ply)
Sidewall
Tube-Type
Tread Depth
33/32nds
Inflation Pressure
38 PSI
Part Number
329106625
Tire Weight
28 lbs
Section Width
7.5"
Overall Diameter
33.3"
Three-Peak Mountain Snowflake (3PMS)
No

Did you find what
you were looking for?