2003 Saturn Ion tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 4x100 on every 2003 trim.

Tires for the 2003 Saturn Ion

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

195/60R15 Best-rated standard on 1 trim · optional on 1

Check price on Amazon · 195/60R15
185/70R14 Best-rated standard on 1 trim

Check price on Amazon · 185/70R14
185/65R15 Best-rated optional on 1 trim

Check price on Amazon · 185/65R15

Also listed: 195/60R16 205/55R16 205/45R17

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Trims sold in 2003: 2
Generation: l
Other years: 2003
2004
2005
2006
2007
All years (2003–2007)

2 trims sold in 2003

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

Saturn Ion l

2003–2007 2 trims

Ion 2.2i 138 hp · I4 185/70R14 91H 3 fitments

Generation: l · 2003–2007
Power: 138 hp
Engine: I4, Petrol
Center bore: 57.1 mm
Bolt pattern: 4x100
Thread: M12 x 1.5

Check price on Amazon · 185/70R14 Wheels 14x5.5 ET37 · 4x100 · 57.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
185/70R14 91H	Rim 14x5.5 ET37 4x100	32 psi
185/65R15 91H	Rim 15x5.5 ET39 4x100	33 psi
195/60R15 91H	Rim 15x6 ET42 4x100	33 psi

How to read 91H: 91 is the load index (up to 1,356 lb / 615 kg per tire) and H the speed rating (up to 130 mph / 210 km/h). ET37 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

Ion 2.4i 168 hp · I4 195/60R15 91H 4 fitments

Generation: l · 2003–2007
Power: 168 hp
Engine: I4, Petrol
Center bore: 57.1 mm
Bolt pattern: 4x100
Thread: M12 x 1.5

Check price on Amazon · 195/60R15 Wheels 15x6 ET42 · 4x100 · 57.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
195/60R15 91H	Rim 15x6 ET42 4x100	33 psi
195/60R16 91H	Rim 16x6 ET42 4x100	33 psi
205/55R16 91H	Rim 16x6.5 ET45 4x100	35 psi
205/45R17 89V	Rim 17x7 ET42 4x100	38 psi

How to read 91H: 91 is the load index (up to 1,356 lb / 615 kg per tire) and H the speed rating (up to 130 mph / 210 km/h). ET42 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.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.