What tyre size does a Infiniti M use?

The most common size is 245/50R18. Depending on generation and engine, the Infiniti M uses 2 different sizes including 245/40R20, 245/50R18.

Where do I find my exact Infiniti M 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 › M

Infiniti M tyre sizes

All factory fitments by generation and engine — 2 sizes across 1 generation.

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Quick answer

The most common tyre size on the Infiniti M is 245/50R18 (overall diameter ≈ 702 mm). Exact fitment depends on generation and engine — full breakdown below.

M (Y51) 2010 - Limousine (2010–present)

Engine	Tyre sizes
M30d AT - 238 PS - Diesel - 2991 Hubraum	245/40R20 245/50R18
M30d AT - 238 PS - Diesel - 2993 Hubraum	245/40R20 245/50R18
M35h AT Hybrid - 306 PS - Hybrid - 3498 Hubraum	245/50R18
M37 AT - 320 PS - Benzin - 3696 Hubraum	245/40R20 245/50R18

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