2003 Ford Mustang Mach 1 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x114.3 on every 2003 trim.

Tires for the 2003 Ford Mustang Mach 1

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

245/45R17 front + 275/40R17 rear Best-rated standard on 1 trim

Check price on Amazon · 245/45R17 front Check price on Amazon · 275/40R17 rear
245/45R17 Best-rated optional on 1 trim

Check price on Amazon · 245/45R17

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Trims sold in 2003: 1
Generation: IV
Other years: 1975
1976
1977
1978
2003
2004
2019
2020
All years (1969–2023)

1 trim sold in 2003

Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

Ford Mustang Mach 1 IV

2003–2004 1 trim

Mustang Mach 1 4.6i 305 hp · 4.6L Modular V8 245/45R17 98Y / 275/40R17 98Y 2 fitments

Generation: IV · 2003–2004
Power: 305 hp
Engine: 4.6L Modular V8, Petrol
Center bore: 70.5 mm
Bolt pattern: 5x114.3
Thread: 1/2" - 20 UNF

Check price on Amazon · 245/45R17 Check price on Amazon · 275/40R17 Wheels 17x8 ET30 · 5x114.3 · 70.5 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front245/45R17 98Y	Rim 17x8 ET30 ~~5x114.3~~	33 psi
Rear275/40R17 98Y	Rim 17x9 ET20 ~~5x114.3~~	33 psi
245/45R17 98Y	Rim 17x8 ET30 ~~5x114.3~~	33 psi

How to read 98Y: 98 is the load index (up to 1,653 lb / 750 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET30 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

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.