Buick Regal Tourx tire size

The most common factory tire size for the Buick Regal Tourx is 235/50R18, on 9 of the 9 year and trim fits listed. The table lists every year from 2018 to 2020 and the size each trim was built with. Pick your year and trim to see the tires that fit.

Buick Regal Tourx tire sizes by year

Factory tire sizes of the Buick Regal Tourx by year and trim
Year	Factory tire size	Trims
2020	235/50R18load index 97, speed rating V	Base, Essence, Preferred
2019	235/50R18load index 97, speed rating V	Base, Essence, Preferred
2018	235/50R18load index 97, speed rating V	Base, Essence, Preferred

Check your own tire

A trim can be sold with more than one wheel size. The size printed on the sidewall of your current tire, or on the placard in the driver's door jamb, is the one your vehicle has.

How to read your tire size Other Buick models