2023 GMC Sierra 3500HD 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 2023 GMC Sierra 3500HD.

2023 GMC Sierra 3500HD tire sizes

275/70R18 275/65R20

Bolt pattern

Other years

Fitment tables

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

2020 – 2023 USA market 2 trims

401 hp · 6.6 L L8T V8 Petrol 6.6 L L8T V8 275/70 R18 2 fitments

GenerationGMT T1XX 2020–2023

MarketUSA

Power401 hp

Engine6.6 L L8T V8 Petrol 6.6 L L8T V8, Petrol

Center bore124.1 mm

PCD8x180

ThreadM14 x 1.5

Fit	Tire size	Rim size and bolt pattern	Pressure, psi	Prices
OE	275/70 R18	18x8 ET44 ~~8x180~~	–	Tires Rims
Alt	275/65 R20	20x8.5 ET47 ~~8x180~~	–	Tires Rims

445 hp · 6.6 L L5P V8 Diesel 6.6 L L5P V8 275/70 R18 2 fitments

GenerationGMT T1XX 2020–2023

MarketUSA

Power445 hp

Engine6.6 L L5P V8 Diesel 6.6 L L5P V8, Diesel

Center bore124.1 mm

PCD8x180

ThreadM14 x 1.5

Fit	Tire size	Rim size and bolt pattern	Pressure, psi	Prices
OE	275/70 R18	18x8 ET44 ~~8x180~~	–	Tires Rims
Alt	275/65 R20	20x8.5 ET47 ~~8x180~~	–	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.