Tire Size
Equivalent
Diameter
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14"
15"
16"
17"
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19"
20"
21"
22"
23"
24"
26"
Select a Size to Compare Prices on Available Tires
GMC equips the 2026 Sierra 2500 HD AT4X with a 305/70R18 tire. Click on each tire to compare prices online for that tire.
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Wrangler Territory M/TAll Terrain | (LT)126R E
Avg. $282.67
Dynapro MT2Off Road/Mud Terrain | (LT)126Q E
Avg. $359.85
Courser CXTAll Terrain | (LT)126Q E
Avg. $364.30
Studdable
Roadian MTXOff Road/Mud Terrain | (LT)128Q F
Avg. $403.00
Baja Legend MTZOff Road/Mud Terrain | (LT)126Q E
Avg. $403.00
Courser MXTOff Road/Mud Terrain | (LT)126Q E
Avg. $407.00
Studdable
Dura Grappler Truck/SUV All Season | (LT)126R E
Avg. $410.00
Highway
Geolandar A/T4All Terrain | (LT)126R E
Avg. $421.00
55K Miles
Geolandar M/T G003Off Road/Mud Terrain | (LT)126Q E
Avg. $431.25
Discoverer STT PROOff Road/Mud Terrain | (LT)126Q E
Avg. $431.67
Recon Grappler A/TAll Terrain | (LT)120R D
Avg. $432.00
55K Miles
Baja Legend EXPAll Terrain | (LT)126Q E
Avg. $432.33
50K Miles
Geolandar X-ATAll Terrain | (LT)126Q E
Avg. $455.00
45K Miles
Open Country A/T III EVAll Terrain | (LT)126R E
Avg. $473.50
50K Miles
Baja BossOff Road/Mud Terrain | (LT)126Q E
Avg. $475.19
All-Terrain T/A KO3All Terrain | (LT)128S F
Avg. $480.50
50K Miles
Baja Boss A/TAll Terrain | (LT)126Q E
Avg. $488.00
50K Miles
Discoverer ST MAXXAll Terrain | (LT)126Q E
Avg. $493.67
Studdable
HD-Terrain T/A KTAll Terrain | (LT)128Q F
Avg. $505.50