2018 GMC Sierra 1500 Tire Size & Wheel Fitment
Factory (OE) fitment, matched to live inventory. Always covered by our Fitment Guarantee.
Factory Fitment
Tire size
255/70R17
Optional sizes: 265/65R18
Wheel bolt pattern
6x139.7
Sizes vary by trim — always confirm against your sidewall or door jamb sticker. Every order is covered by our Fitment Guarantee.
255/70R17 Tires for the 2018 GMC Sierra 1500
Ironman
RB SUV
$102.59
Ironman
All Country HT 4S
$105.45
Kumho
Crugen HT51
$109.95
Arroyo
Arroyo ECO PRO HT
$130.25
Arroyo
Arroyo ECO PRO HT
$130.25
Arroyo
Arroyo ECO PRO HT
$130.25
Arroyo
Arroyo ECO PRO HT
$130.25
Arroyo
Arroyo ECO PRO HT
$130.25
6x139.7 Wheels for the 2018 GMC Sierra 1500
4Play
Sport2.0 4PS01
$369.00
4Play
Sport2.0 4PS20
$369.00
4Play
Sport2.0 4PS63
$369.00
Oe Wheels
17" Replica TY09 fits Toyota 4Runner
$248.83
Oe Wheels
17" Replica TY16B fits Toyota 4Runner
$249.93
Oe Wheels
17" Replica TY16B fits Toyota 4Runner
$249.93
Vöxx
Turin
$0.00
G-Fx
TR-12
$0.00
FAQ
What size tires does a 2018 GMC Sierra 1500 take?
The factory (OE) tire size for a 2018 GMC Sierra 1500 is 255/70R17. Optional factory sizes include 265/65R18, depending on trim. Always confirm against your sidewall or door jamb sticker before ordering — trims can vary.
What is the wheel bolt pattern on a 2018 GMC Sierra 1500?
The 2018 GMC Sierra 1500 uses a 6x139.7 bolt pattern. If you're unsure, our team can confirm it before you order — every wheel and tire purchase is covered by the Fitment Guarantee.
Is this the exact size for my trim?
This is the most common factory size for this generation. Some trims (especially higher/lower packages) may differ — check your sidewall or door jamb, or contact us and we'll verify before you buy.