2026 Buick Regal 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 2026 Buick Regal.

2026 Buick Regal tire sizes

Bolt pattern

Other years

Fitment tables

Open a trim for its factory package and every alternative size, front and rear.

2023 – 2027 2 trims

166 hp · 1.5 L Petrol 1.5 L 225/55 R17 4 fitments

GenerationVI Facelift 2023–2027

MarketChina

Power166 hp

Engine1.5 L Petrol 1.5 L, Petrol

Center bore70.3 mm

PCD5x115

ThreadM12 x 1.5

Fit	Tire size	Rim size and bolt pattern	Pressure, psi	Prices
OE	225/55 R17	17x7.5 ET45 ~~5x115~~	33	Tires Rims
Alt	245/50 R17	17x8 ET45 ~~5x115~~	33	Tires Rims
Alt	245/45 ZR18	18x8.5 ET49 ~~5x115~~	33	Tires Rims
Alt	245/40 ZR19	19x8.5 ET49 ~~5x115~~	33	Tires Rims

233 hp · 2.0 L Petrol 2.0 L 245/45 ZR18 4 fitments

GenerationVI Facelift 2023–2027

MarketChina

Power233 hp

Engine2.0 L Petrol 2.0 L, Petrol

Center bore70.3 mm

PCD5x115

ThreadM12 x 1.5

Fit	Tire size	Rim size and bolt pattern	Pressure, psi	Prices
OE	245/45 ZR18	18x8.5 ET49 ~~5x115~~	33	Tires Rims
Alt	225/55 R17	17x7.5 ET45 ~~5x115~~	33	Tires Rims
Alt	245/40 ZR19	19x8.5 ET49 ~~5x115~~	33	Tires Rims
Alt	245/35 ZR20	20x8.5 ET45 ~~5x115~~	35	Tires Rims

Reading the table

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.