2009 Chevrolet Avalanche tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 6x139.7 on every 2009 trim.

Tires for the 2009 Chevrolet Avalanche

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

265/70R17 Best-rated standard on 3 trims

Check price on Amazon · 265/70R17
265/65R18 Best-rated optional on 3 trims

Check price on Amazon · 265/65R18
275/55R20 Best-rated optional on 3 trims

Check price on Amazon · 275/55R20

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Trims sold in 2009: 3
Generation: Avalanche
Other years: 2007
2008
2009
2010
2011
2012
2013
All years (2007–2013)

3 trims sold in 2009

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 Avalanche Avalanche

2007–2013 3 trims

Avalanche 5.3 +2 variants 320 hp · V8 265/70R17 113S 3 fitments

Same tires and wheels on: 6.0

Generation: Avalanche · 2007–2013
Power: 320 hp
Engine: V8, Petrol
Center bore: 78.1 mm
Bolt pattern: 6x139.7
Thread: M14 x 1.5

Check price on Amazon · 265/70R17 Wheels 17x7.5 ET31 · 6x139.7 · 78.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
265/70R17 113S	Rim 17x7.5 ET31 ~~6x139.7~~	30 psi
265/65R18 112S	Rim 18x8 ET31 ~~6x139.7~~	30 psi
275/55R20 111S	Rim 20x8.5 ET31 ~~6x139.7~~	32 psi

How to read 113S: 113 is the load index (up to 2,535 lb / 1,150 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. 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.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.