What tyre size does a Infiniti FX use?

The most common size is 265/45R21. Depending on generation and engine, the Infiniti FX uses 3 different sizes including 265/45R21, 265/50R20, 255/45R21.

Where do I find my exact Infiniti FX tyre size?

Check the tyre placard in the driver's door jamb or fuel flap, or use the lookup tool on this page to select your generation and engine.

Tyres › Infiniti › FX

Infiniti FX tyre sizes

All factory fitments by generation and engine — 3 sizes across 1 generation.

✓ VALIDATED DATASET

Quick answer

The most common tyre size on the Infiniti FX is 265/45R21 (overall diameter ≈ 772 mm). Exact fitment depends on generation and engine — full breakdown below.

FX (S51) 2009 - SUV (2009–present)

Engine	Tyre sizes
FX Vettel Edition - 420 PS - Benzin - 5026 Hubraum	265/45R21 265/50R20
FX30d - 238 PS - Diesel - 2991 Hubraum	265/45R21 265/50R20
FX30d - 238 PS - Diesel - 2993 Hubraum	265/45R21 265/50R20
FX37 - 320 PS - Benzin - 3696 Hubraum	265/45R21 265/50R20
FX50 - 390 PS - Benzin - 5026 Hubraum	255/45R21 265/45R21 265/50R20

Not sure which variant you have?
Use the live finder to drill down to your exact engine and year for your Infiniti FX.
Open the tyre finder →

Run a tyre shop or parts store?
This exact lookup — every vehicle, every size — as a widget on your site, styled to your brand. One line of code, live in 24 hours.
Put this on my site → Try the widget