Yokohama Geolandar X-AT 37x12.50R18 Tires
Yokohama Geolandar X-AT 37x12.50R18 E 128Q is an all-terrain tire priced from $488.99.
Yokohama Geolandar X-AT 37x12.50R18 E 128Q Tire Specs
37x12.50R18 is a Flotation tire.
Let us decode each aspect of the tire size code to have a full understanding what this tire size means.
37 is the overall diameter of a tire, or tire height, when it is fully inflated and not under load. For 37x12.50R18, tire diameter is 37 inches.
12.50 indicates the 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 37x12.50R18 tire is 12.50 inches.
R denotes that 37x12.50R18 tire has radial construction.
18 represents the wheel diameter in inches that the tire is designed to fit. 37x12.50R18 can be mounted on rims with 18 inches in diameter.
E denotes the load range of a tire. Load Range E is equivalent to a 10-ply rating, but this doesn't mean the tire actually has 10 physical plies. These tires are generally rated for a maximum inflation pressure of 80 psi, and are commonly used on vehicles that carry heavy cargo or tow trailers, such as full-size vans, pickup trucks, and larger SUVs. They are also found on commercial trucks and RVs.
128 indicates the load index. A tire with a load index of 128 can support a maximum load of 3968 pounds or 1800 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 Yokohama Geolandar X-AT 37x12.50R18 tire is 65 psi.
Tire manufacturer part number (MPN) is 110116071.

37x12.50R18 Dimensions Chart
Yokohama Geolandar X-AT 37x12.50R18 tire has a diameter of 37", a width of 12.50", mounts on a 18" rim, and makes 545 revolutions per mile.
Metric | Inches | |
---|---|---|
Tire Width | 317.5 mm | 12.50" |
Aspect Ratio | 76% | |
Rim Diameter | 457 mm | 18" |
Tire Diameter | 940 mm | 37" |
Sidewall Height | 241.3 mm | 9.5" |
Circumference | 2952 mm | 116.2" |
Revolutions | 339 per km | 545 per mile |
More 37x12.50R18 Tires
Here are the lowest priced tires availabe in 37x12.50R18 tire size.

Maxxis Razr MT 37x12.50R18
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Falken Wildpeak A/T3W 37x12.50R18
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Toyo Open Country A/T III 37x12.50R18
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Toyo Open Country R/T Trail 37x12.50R18
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Nitto Recon Grappler A/T 37x12.50R18
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Falken Wildpeak R/T 01 37x12.50R18
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Nitto Ridge Grappler 37x12.50R18
from $488.00
Toyo Open Country R/T 37x12.50R18
from $488.97Shop more 37x12.50R18 tires with tire finder.
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