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Factory size of Pontiac G8 wheels and tolerances

Information updated on Jun. 12, 2022, 11:23

G8 models were produced by Pontiac from 2008 to 2009. There were 3 modifications of this car in total:

The manufacturer Pontiac installed discs with a diameter of 18 to 20 inches on the G8 model. On this model, you can install 10 disk options, of which 5 factory and 5 are valid.

Pontiac G8: table of standard and permissible disk sizes

The table below shows all the parameters of Pontiac G8 wheels that were produced in 2008-2009.

Legend of the table (parameters of PCD and offset of Pontiac G8 discs):

  • DIA (hole diameter)
  • LZ (number of holes)
  • PCD (hole circle diameter)
  • ET (disk indent)

Quick jump to the desired modification of Pontiac G8:

By year of production:
By modification:
Modification Production year General parameters Wheel diameter PCD Wheel width ET (disk indent) DIA (diameter) Type of install
3.6i GM Zeta 2008 8Jx18 5/120 ET48 d66.6 18 5X120 8 48 66.6 Factory
3.6i GM Zeta 2008 8Jx19 5/120 ET48 d66.6 19 5X120 8 48 66.6 Allowable
6.0i GT GM Zeta 2008 8Jx18 5/120 ET48 d66.6 18 5X120 8 48 66.6 Factory
6.0i GT GM Zeta 2008 8Jx19 5/120 ET48 d66.6 19 5X120 8 48 66.6 Allowable
3.6i GM Zeta 2009 8Jx18 5/120 ET48 d66.6 18 5X120 8 48 66.6 Factory
3.6i GM Zeta 2009 8Jx19 5/120 ET48 d66.6 19 5X120 8 48 66.6 Allowable
6.0i GT GM Zeta 2009 8Jx18 5/120 ET48 d66.6 18 5X120 8 48 66.6 Factory
6.0i GT GM Zeta 2009 8Jx19 5/120 ET48 d66.6 19 5X120 8 48 66.6 Allowable
6.2i GXP GM Zeta 2009 8Jx19 5/120 ET48 d66.6 19 5X120 8 48 66.6 Factory
6.2i GXP GM Zeta 2009 8.5Jx20 5/120 ET45 d66.6 20 5X120 8.5 45 66.6 Allowable

Wheel sizes for other Pontiac models