2004 Buick Regal tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x115 on every 2004 trim.

Tires for the 2004 Buick Regal

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

215/70R15 Best-rated standard on 4 trims · China, USA

Check price on Amazon · 215/70R15
225/60R16 Best-rated standard on 1 trim · optional on 2 · USA, China

Check price on Amazon · 225/60R16

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Trims sold in 2004: 5
Generation: IV sold in 2 market versions
Other years: 2000
2001
2002
2003
2004
2005
2006
2007
All years (1987–2026)

5 trims sold in 2004

Sold in 2 market versions with different tire sizes. Open a trim for its tire and rim sizes, bolt pattern and tire pressure. Trims with the same tires and wheels share a row.

Buick Regal IV

1999–2008 5 trims

China

3 trims

Regal 2.0i +1 variant 122 hp · I4 215/70R15 1 fitment

Same tires and wheels on: 2.5i

Generation: IV · 1999–2008
Market: China
Power: 122 hp
Engine: I4, Petrol
Center bore: 70.3 mm
Bolt pattern: 5x115
Thread: M12 x 1.5

Check price on Amazon · 215/70R15 Wheels 15x6 ET44 · 5x115 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
215/70R15	Rim 15x6 ET44 ~~5x115~~	–

Regal 3.0i 169 hp · V6 225/60R16 1 fitment

Generation: IV · 1999–2008
Market: China
Power: 169 hp
Engine: V6, Petrol
Center bore: 70.3 mm
Bolt pattern: 5x115
Thread: M12 x 1.5

Check price on Amazon · 225/60R16 Wheels 16x6.5 ET52 · 5x115 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
225/60R16	Rim 16x6.5 ET52 ~~5x115~~	–

USA

2 trims

Regal 3.8 +1 variant 200 hp · L36 V6 215/70SR15 3 fitments

Same tires and wheels on: 3.8SC

Generation: IV · 1999–2008
Market: USA
Power: 200 hp
Engine: L36 V6, Petrol
Center bore: 70.3 mm
Bolt pattern: 5x115
Thread: 1/2" - 20 UNF

Check price on Amazon · 215/70R15 Wheels 15x6 ET38 · 5x115 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
215/70SR15	Rim 15x6 ET38 ~~5x115~~	–
225/60HR16	Rim 16x6.5 ET42 ~~5x115~~	–
225/60HR16	Rim 16x7 ET44 ~~5x115~~	–

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.