2018 Toyota Tundra Tire Size
The 2018 Toyota Tundra came with 255/70R18, 275/65R18 or 275/55R20 tires, depending on the trim and wheel size. Recommended cold pressure: 30 psi front, 33 psi rear.
Not sure which one you have? Read the size off your tire's sidewall, or check the label on the driver's door jamb. How to read a tire size.
✓ From the manual ·2018 Toyota Tundra owner's manual, p. 609, 610
Factory tire sizes
- Width
- 255 mm (10 in)
- Wheel
- 18 in · 18 x 8J
- Overall diameter
- 32.1 in
- Cold pressure
- 30 psi front, 33 psi rear
- Load index
- 112 (2,469 lb)
- Speed rating
- T (up to 118 mph)
- Width
- 275 mm (10.8 in)
- Wheel
- 18 in · 18 x 8J
- Overall diameter
- 32.1 in
- Cold pressure
- 30 psi front, 33 psi rear
- Load index
- 114 (2,601 lb)
- Speed rating
- T (up to 118 mph)
- Width
- 275 mm (10.8 in)
- Wheel
- 20 in · 20 x 8J
- Overall diameter
- 31.9 in
- Cold pressure
- 30 psi front, 33 psi rear
- Load index
- 111 (2,403 lb)
- Speed rating
- H (up to 130 mph)
Spare tire
- Width
- 255 mm (10 in)
- Wheel
- 18 in
- Overall diameter
- 32.1 in
- Cold pressure
- 33 psi
- Load index
- 112 (2,469 lb)
- Speed rating
- T (up to 118 mph)
A temporary spare is for short trips at reduced speed, usually no faster than 50 mph. Follow the limit printed on the spare and in your manual, and replace the flat as soon as you can.
Questions
What size tires does a 2018 Toyota Tundra have?
The 2018 Toyota Tundra came with 255/70R18, 275/65R18 or 275/55R20 tires, depending on the trim and wheel size.
Which size is on my 2018 Toyota Tundra?
Look at the sidewall of one of your tires: the size is the code that looks like 255/70R18. The label on the driver's door jamb also lists the original size and pressure for your exact trim.
What tire pressure does a 2018 Toyota Tundra need?
The manual gives 30 psi front, 33 psi rear, measured with the tires cold. Check it before driving, and go by the door-jamb label if it differs, because that is set for your exact car.
Can I fit a different tire size on my 2018 Toyota Tundra?
Stick to a factory size for your wheel unless a tire shop confirms the swap. A different overall diameter changes speedometer readings and can upset ABS and stability control, and the load index must be at least the original.