2025 Buick GL8 tire and wheel sizes, bolt pattern and tire pressure

Check the tables below for every tire size, wheel size, bolt pattern (PCD), rim offset and tire pressure fitted to the 2025 Buick GL8.

2025 Buick GL8 tire sizes

225/60R17 225/55R18

Bolt pattern

2 generations were sold in 2025. Check your chassis code before ordering wheels.

Other years

2019 2020 2021 2022 2023 2024 2025 2026 All 2005–2026

Fitment tables

2 trims sold in 2025

Open a trim for its factory package and every alternative size, front and rear. More than one generation was on sale this year — check the chassis code against your VIN before ordering.

Buick GL8 III Facelift

2025 – 2027 1 trim

GL8 2.0T

233 hp · 2.0 L Petrol 2.0 L 225/60 R17 2 fitments

GenerationIII Facelift 2025–2027

MarketChina

Power233 hp

Engine2.0 L Petrol 2.0 L, Petrol

Center bore66.9 mm

PCD5x120

ThreadM14 x 1.5

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

Buick GL8 III Facelift

2020 – 2027 1 trim

GL8 2.0T

233 hp · 2.0 L Petrol 2.0 L 225/60 R17 2 fitments

GenerationIII Facelift 2020–2027

MarketChina

Power233 hp

Engine2.0 L Petrol 2.0 L, Petrol

Center bore66.9 mm

PCD5x120

ThreadM14 x 1.5

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

Reading the table

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.
Staggered: A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.

Considering a different size?

Run your OE size against the one you want to see diameter change, ground clearance and speedometer error.

Open the size calculator

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