The 2021 Mazda 3 tire size depends on trim: the Base takes 205/60R16 92H; the Preferred, 4D Hatchback, AWD takes 215/45R18 89V; the Preferred, 4D Hatchback, FWD takes 215/45R18 89V; the Preferred, 4D Sedan, 2.5L Eng VIN L, AWD takes 215/45R18 89V; the Preferred, 4D Sedan, 2.5L Eng VIN L, FWD takes 215/45R18 89V; the S, 4D Sedan takes 205/60R16 92H; the Premium, 4D Hatchback, FWD, Standard Trans takes 215/45R18 89V; the Premium, 4D Sedan, 2.5L Eng VIN L takes 215/45R18 89V; the Turbo, 4D Hatchback takes 215/45R18 89V; the Premium, 4D Hatchback, AWD takes 215/45R18 89V; the Select, 4D Sedan, 2.5L Eng VIN M, FWD takes 215/45R18 89V; the Select, 4D Sedan, 2.5L Eng VIN M, AWD takes 215/45R18 89V; the Preferred, 4D Sedan, 2.5L Eng VIN M takes 215/45R18 89V; the Select, 4D Hatchback, FWD takes 215/45R18 89V; the Premium, 4D Hatchback, FWD, Automatic Trans takes 215/45R18 89V; the Turbo Premium Plus, 4D Sedan takes 215/45R18 89V; the Select, 4D Sedan, 2.5L Eng VIN L, FWD takes 215/45R18 89V; the Turbo Premium Plus, 4D Hatchback takes 215/45R18 89V; the Select, 4D Sedan, 2.5L Eng VIN L, AWD takes 215/45R18 89V; the Turbo, 4D Sedan takes 215/45R18 89V; the Premium, 4D Sedan, 2.5L Eng VIN M, FWD takes 215/45R18 89V; the Select, 4D Hatchback, AWD takes 215/45R18 89V; the Premium, 4D Sedan, 2.5L Eng VIN M, AWD takes 215/45R18 89V; the S, 4D Hatchback takes 205/60R16 92H, per the factory service manual.
Factory-Spec Tire Size
Varies by trim
Base: 205/60R16 92H
Preferred, 4D Hatchback, AWD: 215/45R18 89V
Preferred, 4D Hatchback, FWD: 215/45R18 89V
Preferred, 4D Sedan, 2.5L Eng VIN L, AWD: 215/45R18 89V
Preferred, 4D Sedan, 2.5L Eng VIN L, FWD: 215/45R18 89V
S, 4D Sedan: 205/60R16 92H
Premium, 4D Hatchback, FWD, Standard Trans: 215/45R18 89V
Premium, 4D Sedan, 2.5L Eng VIN L: 215/45R18 89V
Turbo, 4D Hatchback: 215/45R18 89V
Premium, 4D Hatchback, AWD: 215/45R18 89V
Select, 4D Sedan, 2.5L Eng VIN M, FWD: 215/45R18 89V
Select, 4D Sedan, 2.5L Eng VIN M, AWD: 215/45R18 89V
Preferred, 4D Sedan, 2.5L Eng VIN M: 215/45R18 89V