2018 Toyota Tundra Tire Size
Last updated: July 2026
| Trim | Tire size | Pressure (cold) |
|---|---|---|
| SR / SR5 | 255/70R18 | 30 psi |
| Limited | 275/55R20 | 30 psi |
| TRD Pro | 275/65R18 | 30 psi |
These are the factory-approved sizes for the 2nd gen (XK50) Tundra. The size on your specific vehicle is printed on the driver's door-jamb placard — trims within the same year can wear different wheels, so match by trim, not just year. Reading the size: in 265/70R16, 265 is the tread width in millimeters, 70 is the sidewall height as a percentage of that width, R means radial construction, and 16 is the wheel diameter in inches.
FAQ
What size tires does a 2018 Toyota Tundra have?
The 2018 Tundra uses 255/70R18 tires on SR / SR5 trims and 275/65R18 on TRD Pro trims.
What is the recommended tire pressure for a 2018 Tundra?
Toyota recommends 30 psi cold inflation pressure for the 2018 Tundra. Always confirm on the driver's door-jamb placard.
Can I use a different tire size on my 2018 Tundra?
Staying within the factory-approved sizes listed above preserves speedometer accuracy, fuel economy, and safety-system calibration. Consult a tire professional before plus-sizing.