2026 Buick GL8 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x120 on every 2026 trim.

Tires for the 2026 Buick GL8

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

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

2025–2027 China 1 trim

GL8 2.0T (MPV, 5d) 233 hp · 2.0 L Petrol 2.0 L 225/60R17 2 fitments

Check price on Amazon · 225/60R17 Wheels 17x7 ET41 · 5x120 · 66.9 mm on Amazon

Fit	Tire size	Rim size and bolt pattern	Pressure, psi
OE	225/60R17	Rim 17x7 ET41 5x120	35 psi
Alt	225/55R18	Rim 18x7 ET40 5x120	35 psi

What these columns mean

OE fitment: The package fitted at the factory for that trim.
Alternative: A size the car accepts without modification — plus-sizing, winter setups or optional wheels.
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.