2026 Kia K4 Tire Size
The 2026 Kia K4 came with 205/55R16, 225/45R17 or 235/40R18 tires, depending on the trim and wheel size. Recommended cold pressure: 33 to 34 psi front, 31 to 33 psi rear depending on size.
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 ·2026 Kia K4 owner's manual, p. 38
Factory tire sizes
- Width
- 205 mm (8.1 in)
- Wheel
- 16 in · 6.5J x 16
- Overall diameter
- 24.9 in
- Cold pressure
- 34 psi front, 31 psi rear
- Load index
- 91 (1,356 lb)
- Speed rating
- H (up to 130 mph)
- Width
- 225 mm (8.9 in)
- Wheel
- 17 in · 7.0J x 17
- Overall diameter
- 25 in
- Cold pressure
- 34 psi front, 31 psi rear
- Load index
- 91 (1,356 lb)
- Speed rating
- W (up to 168 mph)
- Width
- 235 mm (9.3 in)
- Wheel
- 18 in · 8.0J x 18
- Overall diameter
- 25.4 in
- Cold pressure
- 33 psi
- Load index
- 91 (1,356 lb)
- Speed rating
- W (up to 168 mph)
Spare tire
- Width
- 125 mm (4.9 in)
- Wheel
- 15 in · 4.0T x 15
- Overall diameter
- 22.9 in
- Cold pressure
- 60 psi
- Load index
- 95 (1,521 lb)
- Speed rating
- M (up to 81 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.
- Width
- 125 mm (4.9 in)
- Wheel
- 16 in · 4.0T x 16
- Overall diameter
- 23.9 in
- Cold pressure
- 60 psi
- Load index
- 97 (1,609 lb)
- Speed rating
- M (up to 81 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 2026 Kia K4 have?
The 2026 Kia K4 came with 205/55R16, 225/45R17 or 235/40R18 tires, depending on the trim and wheel size.
Which size is on my 2026 Kia K4?
Look at the sidewall of one of your tires: the size is the code that looks like 205/55R16. The label on the driver's door jamb also lists the original size and pressure for your exact trim.
What tire pressure does a 2026 Kia K4 need?
The manual gives 33 to 34 psi front, 31 to 33 psi rear depending on size, 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 2026 Kia K4?
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.