tirewheelguide

2008 Infiniti M tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x114.3 on every 2008 trim.

Tires for the 2008 Infiniti M

Sizes most trims come with first. Open your trim below for its exact size.

  1. 245/40R19 front + 255/40R19 rear Best-rated standard on 2 trims · USA, Europe
    Check price on Amazon · 245/40R19 front Check price on Amazon · 255/40R19 rear
  2. 245/45R18 Best-rated standard on 1 trim · USA
    Check price on Amazon · 245/45R18
  3. 245/40R19 Best-rated optional on 3 trims · USA, Europe
    Check price on Amazon · 245/40R19

Also listed: 255/35R20 + 275/35R20 245/35R20 255/35R20

TireWheelGuide may earn a commission from purchases made through these links.

Trims sold in 2008
3
Generation
Y50 sold in 2 market versions

3 trims sold in 2008

Sold in 2 market versions with different tire sizes. Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

Infiniti M Y50

2005–2010 3 trims

USA

2 trims
M 3.5i 275 hp · 3.5L VQ35DE V6 245/45R18 95V 4 fitments
Generation
Y50 · 2005–2010
Market
USA
Power
275 hp
Engine
3.5L VQ35DE V6, Petrol
Center bore
66.1 mm
Bolt pattern
5x114.3
Thread
M12 x 1.25
Check price on Amazon · 245/45R18 Wheels 18x8 ET47 · 5x114.3 · 66.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
245/45R18 95VRim 18x8 ET47 5x114.333 psi
245/40R19 95VRim 19x8.5 ET50 5x114.333 psi
245/35R20 95VRim 20x8.5 ET50 5x114.330 psi
255/35R20 95VRim 20x9 ET45 5x114.330 psi

How to read 95V: 95 is the load index (up to 1,521 lb / 690 kg per tire) and V the speed rating (up to 149 mph / 240 km/h). ET47 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

M 4.5i 325 hp · 4.5L VK45DE V8 245/40R19 95W / 255/40R19 95W 3 fitments
Generation
Y50 · 2005–2010
Market
USA
Power
325 hp
Engine
4.5L VK45DE V8, Petrol
Center bore
66.1 mm
Bolt pattern
5x114.3
Thread
M12 x 1.25
Check price on Amazon · 245/40R19 Check price on Amazon · 255/40R19 Wheels 19x8.5 ET50 · 5x114.3 · 66.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
Front245/40R19 95WRim 19x8.5 ET50 5x114.333 psi
Rear255/40R19 95WRim 19x9 ET50 5x114.333 psi
Front255/35R20 95WRim 20x9 ET45 5x114.333 psi
Rear275/35R20 95WRim 20x10 ET43 5x114.333 psi
245/40R19 95WRim 19x8.5 ET50 5x114.333 psi

How to read 95W: 95 is the load index (up to 1,521 lb / 690 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET50 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Europe

1 trim
M 4.5i 335 hp · 4.5L VK45DE V8 245/40R19 95W / 255/40R19 95W 3 fitments
Generation
Y50 · 2005–2010
Market
Europe
Power
335 hp
Engine
4.5L VK45DE V8, Petrol
Center bore
66.1 mm
Bolt pattern
5x114.3
Thread
M12 x 1.25
Check price on Amazon · 245/40R19 Check price on Amazon · 255/40R19 Wheels 19x8.5 ET50 · 5x114.3 · 66.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
Front245/40R19 95WRim 19x8.5 ET50 5x114.333 psi
Rear255/40R19 95WRim 19x9 ET50 5x114.333 psi
Front255/35R20 95WRim 20x9 ET45 5x114.333 psi
Rear275/35R20 95WRim 20x10 ET43 5x114.333 psi
245/40R19 95WRim 19x8.5 ET50 5x114.333 psi

How to read 95W: 95 is the load index (up to 1,521 lb / 690 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET50 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

What these columns mean
Rim size
Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD)
Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore
Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure
Recommended cold inflation pressure for that axle, in psi.
Staggered
A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size
Lug bolt or nut thread — needed when buying aftermarket fasteners.
Trims sold in 2008
3
Generation
Y50 sold in 2 market versions
Other years
All years (1989–2014)

Considering a different size?

Compare your current tire size with the one you want: diameter change, ground clearance and speedometer error.

Open the size calculator

Guides worth reading first

All articles
Basics

How to read a tire sidewall

Reading a tire sidewall is easy. Find out what the size, load index, speed rating and date code mean.

Continue reading
Guide

Everything you need to know about tire tread depth

Tire tread depth is an important factor in keeping your vehicle safe — how to measure it and when to replace.

Continue reading
Gear

Best supercapacitor jump starter review

We tested seven supercapacitor jump starters to find the ones worth buying.

Continue reading