Tire Load Index: What to Check

A matching tire width and wheel diameter do not show whether a replacement carries enough load.

Use the vehicle requirement

Read the placard and owner’s manual, including whether the tire is P-metric, Euro-metric or LT. Compare the replacement’s load index and load class against the vehicle requirement.

Why a chart is not enough

A load index is a rated capacity under specified test conditions. Vehicle load, pressure and tire class affect the actual selection. Ask the tire manufacturer or qualified dealer when changing categories.

Selected load index reference

Put the answer to work

Start with the actual vehicle label or installed component. Then use our vehicle directory and comparison tools to narrow the research. Any missing condition should be checked with the manufacturer or a qualified installer.

Official and manufacturer references

• https://www.nhtsa.gov/vehicle-safety/tires