2026 Cadillac GT4 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 Cadillac GT4.

2026 Cadillac GT4 tire sizes

225/55R18 245/45R19

Bolt pattern

Other years

Fitment tables

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

2024 – 2027 2 trims

208 hp · 1.5 L Petrol 1.5 L 225/55 R18 / 225/55 R18 2 fitments

GenerationGT4 2024–2027

MarketChina

Power208 hp

Engine1.5 L Petrol 1.5 L, Petrol

Center bore66.9 mm

PCD5x120

ThreadM14 x 1.5

Fit	Tire size	Rim size and bolt pattern	Pressure, psi	Prices
OE	Front225/55 R18	18x ~~5x120~~	–	Tires Rims
	Rear225/55 R18	~~5x120~~	–	Tires
Alt	Front245/45 R19	19x ~~5x120~~	–	Tires Rims
	Rear245/45 R19	~~5x120~~	–	Tires

233 hp · 2.0 L Petrol 2.0 L 245/45 R19 / 245/45 R19 2 fitments

GenerationGT4 2024–2027

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	Front245/45 R19	19x ~~5x120~~	–	Tires Rims
	Rear245/45 R19	~~5x120~~	–	Tires
Alt	Front225/55 R18	18x ~~5x120~~	–	Tires Rims
	Rear225/55 R18	~~5x120~~	–	Tires

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.