Spec Sizes

2012 GMC Sierra 2500HD Tire Size

Confirmed OEM tire sizes for this model year. Multiple sizes may apply depending on trim and wheel package — all catalog options are listed.

  • Option245/75R17
  • Option265/60R20
  • Option265/70R18
245/75R17Section width 245 mmSidewall ~184 mm(75% of width)Rim 17"245/75R17245 = width75 = aspectR17 = rim
OEM code 245/75R17: section 245 mm · aspect 75% · rim 17"

All confirmed configurations

SizePositionWidthAspectRimLoadSpeed
245/75R17Front / all2457517"——
265/60R20Front / all2656020"——
265/70R18Front / all2657018"——