2018 Chevrolet Suburban tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 6x139.7 on every 2018 trim.

Tires for the 2018 Chevrolet Suburban

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

265/70R17 Best-rated standard on 3 trims · Mexico, USA

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

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

Check price on Amazon · 275/55R20

Also listed: 285/45R22

Best tires for the 2018 Chevrolet Suburban

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Trims sold in 2018: 3
Generation: X (GMTK2YC, G) sold in 2 market versions
Other years: 2014
2015
2016
2017
2018
2019
2020
2021
All years (2007–2026)

Best tires for the 2018 Chevrolet Suburban

3 trims sold in 2018

Sold in 2 market versions. 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 Suburban X (GMTK2YC, G)

2015–2020 3 trims

Mexico

2 trims

Suburban 5.3 +1 variant 355 hp · 5.3L LY5 V8 265/70R17 115S 4 fitments

Same tires and wheels on: 6.0

Generation: GMTK2YC/G · 2015–2020
Market: Mexico
Power: 355 hp
Engine: 5.3L LY5 V8, Petrol
Center bore: 78.1 mm
Bolt pattern: 6x139.7
Thread: M14 x 1.5

Check price on Amazon · 265/70R17 Wheels 17x8 ET24 · 6x139.7 · 78.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
265/70R17 115S	Rim 17x8 ET24 ~~6x139.7~~	35 psi
265/65R18 112T	Rim 18x8.5 ET24 ~~6x139.7~~	35 psi
275/55R20 111S	Rim 20x9 ET27 ~~6x139.7~~	35 psi
285/45R22 110H	Rim 22x9 ET24 ~~6x139.7~~	35 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). ET24 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

USA

1 trim

Suburban 5.3 355 hp · 5.3L LY5 V8 265/70R17 115S 4 fitments

Generation: GMTK2YC/G · 2015–2020
Market: USA
Power: 355 hp
Engine: 5.3L LY5 V8, Petrol
Center bore: 78.1 mm
Bolt pattern: 6x139.7
Thread: M14 x 1.5

Check price on Amazon · 265/70R17 Wheels 17x8 ET24 · 6x139.7 · 78.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
265/70R17 115S	Rim 17x8 ET24 ~~6x139.7~~	35 psi
265/65R18 112T	Rim 18x8.5 ET24 ~~6x139.7~~	35 psi
275/55R20 111S	Rim 20x9 ET27 ~~6x139.7~~	35 psi
285/45R22 110H	Rim 22x9 ET24 ~~6x139.7~~	35 psi

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.