1998 Dodge Durango Tire Size

Your 1998 Dodge Durango was manufactured with multiple tire sizes.  Choose a tire size below to get a color-coded explanation of the differences.  Then pick the best tire size for your 1998 Dodge Durango.

31x10.50R15/C NaN

Simplified Size:  31x10.50-15

Simplified size is useful for shopping and buying tires.

The original tire size for your 1998 Dodge Durango is 31x10.50R15/C .  A color-coded explanation of the 1998 Dodge Durango's tire size is shown below.

10.50

This number indicates that your tire has a width of 10.50 inches.

31

This mark reveals that your tire has a diameter of 31 inches.

15

The tire size was designed to fit rims or wheels that are 15 inches in diameter.

NaN

This tire has a load index of NaN, which means it's capable of carrying a load of NaN pounds (undefined kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

C

The mark of C denotes your tire's load range, or ply rating.  A load range of C means that the tire has a ply rating of 6.  Letters further along in the alphabet represent stronger tires that can sustain higher inflation pressures.  Tires with higher inflation pressures can carry heavier loads.

R

This letter denotes how your tire was constructed.  Radial is the standard construction method for about 99% of all tires sold today.

RRadial
BBias Belt
DDiagonal

P235/75R15/XL 108S

Simplified Size:  235-75-15

Simplified size is useful for shopping and buying tires.

The original tire size for your 1998 Dodge Durango is P235/75R15/XL 108S.  A color-coded explanation of the 1998 Dodge Durango's tire size is shown below.

P

This letter denotes the intended use of the tire.

PPassenger Vehicle
LTLight Truck
CCommercial Vehicle
235

This number indicates that your tire has a width of 235 millimeters.

15

The tire size was designed to fit rims or wheels that are 15 inches in diameter.

XL

The mark of XL means extra load.  A tire with this designation can handle higher inflation pressures than a regular tire, which increases its maximum load.

108

This tire has a load index of 108, which means it's capable of carrying a load of 2200 pounds (1000 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

75

This number means that your tire has an aspect ratio of 75%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 75% of the width.  In this case, the sidewall height works out to be 176 millimeters.

R

This letter denotes how your tire was constructed.  Radial is the standard construction method for about 99% of all tires sold today.

RRadial
BBias Belt
DDiagonal
S

This tire has a speed rating of S, which means 111 mph (180 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.