2003 Chevrolet Express 2500 tire and wheel sizes, bolt pattern and tire pressure

Bolt patterns 8x165.1 or 6x139.7, depending on the market version.

Tires for the 2003 Chevrolet Express 2500

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

225/75R16 Best-rated standard on 4 trims

Check price on Amazon · 225/75R16
235/75R16 Best-rated standard on 4 trims

Check price on Amazon · 235/75R16
245/75R16 Best-rated optional on 4 trims

Check price on Amazon · 245/75R16

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Trims sold in 2003: 8
Generation: GMT610
Other years: 1999
2000
2001
2002
2003
2004
2005
2006
All years (1996–2026)

8 trims sold in 2003

Open a trim for its tire and rim sizes, bolt pattern and tire pressure. Trims with the same tires and wheels share a row.

Chevrolet Express 2500 GMT610

2003–2027 8 trims

Express 2500 4.3 +3 variants 200 hp · 4.3L V6 225/75R16 115S 2 fitments

Same tires and wheels on: 4.8, 5.3, 6.0

Generation: GMT610 · 2003–2027
Power: 200 hp
Engine: 4.3L V6, Petrol
Center bore: 116.7 mm
Bolt pattern: 8x165.1
Thread: M14 x 1.5

Check price on Amazon · 225/75R16 Wheels 16x6.5 ET18 · 8x165.1 · 116.7 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
225/75R16 115S	Rim 16x6.5 ET18 ~~8x165.1~~	55 psi
245/75R16 120S	Rim 16x6.5 ET18 ~~8x165.1~~	55 psi

How to read 115S: 115 is the load index (up to 2,679 lb / 1,215 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET18 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

Express 2500 4.3 +3 variants 200 hp · 4.3L V6 235/75R16 109S 2 fitments

Same tires and wheels on: 4.8, 5.3, 6.0

Generation: GMT610 · 2003–2027
Power: 200 hp
Engine: 4.3L V6, Petrol
Center bore: 78.3 mm
Bolt pattern: 6x139.7
Thread: M14 x 1.5

Check price on Amazon · 235/75R16 Wheels 16x6.5 ET31 · 6x139.7 · 78.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
235/75R16 109S	Rim 16x6.5 ET31 ~~6x139.7~~	–
235/75R16 109S	Rim 16x7 ET31 ~~6x139.7~~	–

How to read 109S: 109 is the load index (up to 2,271 lb / 1,030 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET31 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.