2018 Buick Enclave tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 6x120 on every 2018 trim.

Tires for the 2018 Buick Enclave

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

255/65R18 Best-rated standard on 1 trim

Check price on Amazon · 255/65R18
255/60R19 Best-rated optional on 1 trim

Check price on Amazon · 255/60R19
255/55R20 Best-rated optional on 1 trim

Check price on Amazon · 255/55R20

Also listed: 265/50R21

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Trims sold in 2018: 1
Generation: II
Other years: 2014
2015
2016
2017
2018
2019
2020
2021
All years (2007–2026)

1 trim sold in 2018

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

Buick Enclave II

2019–2023 1 trim

Enclave 3.6 310 hp · 3.6L LFY V6 255/65R18 111T 6 fitments

Generation: II · 2019–2023
Power: 310 hp
Engine: 3.6L LFY V6, Petrol
Center bore: 66.9 mm
Bolt pattern: 6x120
Thread: M14 x 1.5

Check price on Amazon · 255/65R18 Wheels 18x7.5 ET50 · 6x120 · 66.9 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
255/65R18 111T	Rim 18x7.5 ET50 ~~6x120~~	35 psi
255/55R20 107H	Rim 20x8 ET50 ~~6x120~~	35 psi
255/60R19 109H	Rim 19x8 ET50 ~~6x120~~	35 psi
255/55R20 107H	Rim 20x8.5 ET50 ~~6x120~~	35 psi
265/50R21 107V	Rim 21x8.5 ET50 ~~6x120~~	38 psi
265/50R21 107V	Rim 21x9 ET55.5 ~~6x120~~	38 psi

How to read 111T: 111 is the load index (up to 2,403 lb / 1,090 kg per tire) and T the speed rating (up to 118 mph / 190 km/h). ET50 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

What these columns mean

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.