2020 Chevrolet Silverado 2500 HD tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 8x180 on every 2020 trim.

Tires for the 2020 Chevrolet Silverado 2500 HD

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

245/75R17 Best-rated standard on 2 trims

Check price on Amazon · 245/75R17
265/70R17 Best-rated optional on 2 trims

Check price on Amazon · 265/70R17
275/70R18 Best-rated optional on 2 trims

Check price on Amazon · 275/70R18

Also listed: 275/65R20

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Trims sold in 2020: 2
Generation: IV (T1XX)
Other years: 2016
2017
2018
2019
2020
2021
2022
2023
All years (2001–2026)

2 trims sold in 2020

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

Chevrolet Silverado 2500 HD IV (T1XX)

2020–2023 2 trims

Silverado 2500 HD 6.6i 401 hp · 6.6L L8T V8 245/75R17 121R 4 fitments

Generation: T1XX · 2020–2023
Power: 401 hp
Engine: 6.6L L8T V8, Petrol
Center bore: 124.1 mm
Bolt pattern: 8x180
Thread: M14 x 1.5

Check price on Amazon · 245/75R17 Wheels 17x7.5 ET44 · 8x180 · 124.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
245/75R17 121R	Rim 17x7.5 ET44 ~~8x180~~	59 psi
265/70R17 121Q	Rim 17x7.5 ET44 ~~8x180~~	59 psi
275/70R18 125Q	Rim 18x8 ET44 ~~8x180~~	59 psi
275/65R20 126Q	Rim 20x8.5 ET47 ~~8x180~~	59 psi

How to read 121R: 121 is the load index (up to 3,197 lb / 1,450 kg per tire) and R the speed rating (up to 106 mph / 170 km/h). ET44 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

Silverado 2500 HD 6.6TD 445 hp · 6.6L L5P V8 · Diesel 245/75R17 121R 4 fitments

Generation: T1XX · 2020–2023
Power: 445 hp
Engine: 6.6L L5P V8, Diesel
Center bore: 124.1 mm
Bolt pattern: 8x180
Thread: M14 x 1.5

Check price on Amazon · 245/75R17 Wheels 17x7.5 ET44 · 8x180 · 124.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
245/75R17 121R	Rim 17x7.5 ET44 ~~8x180~~	59 psi
265/70R17 121Q	Rim 17x7.5 ET44 ~~8x180~~	59 psi
275/70R18 125S	Rim 18x8 ET44 ~~8x180~~	59 psi
275/65R20 126S	Rim 20x8.5 ET47 ~~8x180~~	59 psi

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.