Goodyear Wrangler DuraTrac LT315/70R17 Tires

Goodyear Wrangler DuraTrac LT315/70R17 D 121/118Q is an all-terrain tire priced from $387.99.

Goodyear Wrangler DuraTrac LT315/70R17 D 121/118Q Tire Specs

LT315/70R17 is a LT-Metric tire used as an original equipment on a variety of popular pickup trucks and sport utility vehicles. It also comes in a Metric (315/70R17) variant

Let us decode each aspect of the tire size code to have a full understanding what this tire size means.

LT indicates that LT315/70R17 is a light truck tire.

315 is a section width of the tire from one sidewall to the other. Tire tread width is typically a bit narrower than the section width. Section width of LT315/70R17 tire is 315 millimeters.

70 represents the aspect ratio of a tire, which is a ratio of the tire's sidewall height to its width. For LT315/70R17 tire, the sidewall height is 70% of its tread width.

R denotes that LT315/70R17 tire has radial construction.

17 represents the wheel diameter in inches that the tire is designed to fit. LT315/70R17 can be mounted on rims with 17 inches in diameter.

D denotes the load range of a tire. Load Range D is equivalent to an 8-ply rating in the old system, but the actual number of plies in the tire may be different. These tires are generally rated for a maximum inflation pressure of 65 psi, and are commonly found on light trucks, SUVs, and trailers, where higher load carrying capacity is needed. They are particularly important for vehicles that are used for towing or carrying heavy loads.

121/118 indicates a dual load index, meaning a tire can be used in a single or a dual application. For a single application, load index of 121 can support a maximum load of 3197 pounds or 1450 kilograms per tire. For a dual application, load index of 118 can support a maximum load of 2910 pounds or 1320 kilograms per tire.

Q indicates the speed rating. A tire with a speed rating of Q is approved for speeds up to 99 miles per hour or 159 kilometers per hour under optimal conditions.

Maximum inflation for Goodyear Wrangler DuraTrac LT315/70R17 tire is 50 psi.

Tire manufacturer part number (MPN) is 312031142.