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2021 Cadillac CT4 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 2021 Cadillac CT4.

2021 Cadillac CT4 tire sizes

225/45R17235/40R18265/35R18235/35R19265/30R19
Bolt pattern
Other years
2020202120222023202420252026 All 2020–2026
Fitment tables

3 trims sold in 2021

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

Cadillac CT4 GM Alpha

2020 – 2023 USA market 3 trims

CT4 2.0T

237 hp · 2.0L LSY I4 235/40 ZR18 94Y / 265/35 ZR18 97Y 6 fitments
GenerationGM Alpha 2020–2023
MarketUSA
Power237 hp
Engine2.0L LSY I4, Petrol
Center bore70.3 mm
PCD5x115
ThreadM12 x 1.5
Tire sizeRim size and bolt patternPressure, psiPrices
Front235/40 ZR18 94Y18x8 ET35 5x11532TiresRims
Rear265/35 ZR18 97Y18x8.5 ET40 5x11538TiresRims
Front235/35 ZR19 91Y19x8 ET35 5x11533TiresRims
Rear265/30 ZR19 93Y19x9 ET40 5x11538TiresRims
225/45 R17 91V17x8 ET32 5x1152.6TiresRims
235/40 R18 91V18x8 ET35 5x1152.6TiresRims
235/40 ZR18 95Y18x8 ET35 5x1153.2TiresRims
235/35 R19 91V19x8 ET35 5x1153.2TiresRims

CT4 2.0T

233 hp · 2.0L LSY I4 235/40 ZR18 94Y / 265/35 ZR18 97Y 6 fitments
GenerationGM Alpha 2020–2023
MarketChina
Power233 hp
Engine2.0L LSY I4, Petrol
Center bore70.3 mm
PCD5x115
ThreadM12 x 1.5
Tire sizeRim size and bolt patternPressure, psiPrices
Front235/40 ZR18 94Y18x8 ET35 5x11532TiresRims
Rear265/35 ZR18 97Y18x8.5 ET40 5x11538TiresRims
Front235/35 ZR19 91Y19x8 ET35 5x11533TiresRims
Rear265/30 ZR19 93Y19x9 ET40 5x11538TiresRims
225/45 R17 91V17x8 ET32 5x1152.6TiresRims
235/40 R18 91V18x8 ET35 5x1152.6TiresRims
235/40 ZR18 95Y18x8 ET35 5x1153.2TiresRims
235/35 R19 91V19x8 ET35 5x1153.2TiresRims

CT4 2.7T

310 hp · 2.7L L3B I4 235/40 ZR18 95Y / 265/35 ZR18 97Y 6 fitments
GenerationGM Alpha 2020–2023
MarketUSA
Power310 hp
Engine2.7L L3B I4, Petrol
Center bore70.3 mm
PCD5x115
ThreadM12 x 1.5
Tire sizeRim size and bolt patternPressure, psiPrices
Front235/40 ZR18 95Y18x8 ET35 5x11533TiresRims
Rear265/35 ZR18 97Y18x8.5 ET40 5x11538TiresRims
Front235/35 ZR19 91Y19x8 ET35 5x11532TiresRims
Rear265/30 ZR19 93Y19x9 ET40 5x11538TiresRims
235/40 R18 91V18x8 ET35 5x1152.6TiresRims
225/45 R17 91V17x8 ET32 5x1152.6TiresRims
235/40 ZR18 95Y18x8 ET35 5x1153.2TiresRims
235/35 R19 91V19x8 ET35 5x1153.2TiresRims
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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