GMC SIERRA 2500 HD Standard Cab Pickup 6.0 CNG (2014-07-01 - )

GMC SIERRA 2500 HD Standard Cab Pickup 6.0 CNG 4WD (2014-07-01 - )

GMC SIERRA 2500 HD Standard Cab Pickup 6.0 (2014-07-01 - 2018-12-01)

GMC SIERRA 2500 HD Standard Cab Pickup 6.0 4WD (2014-07-01 - )

GMC SIERRA 2500 HD Standard Cab Pickup 6.0 FLEX (2014-07-01 - )

GMC SIERRA 2500 HD Standard Cab Pickup 6.0 FLEX 4WD (2014-07-01 - )

GMC SIERRA 2500 HD Standard Cab Pickup 6.6 D (2014-07-01 - )

GMC SIERRA 2500 HD Standard Cab Pickup 6.6 D 4WD (2014-07-01 - )

GMC SIERRA 2500 HD Standard Cab Pickup 6.6 D (2016-10-01 - )

GMC SIERRA 2500 HD Standard Cab Pickup 6.6 D 4WD (2016-10-01 - )

GMC SIERRA 2500 HD Standard Cab Pickup 6.0 CNG (2013-09-01 - )

GMC SIERRA 2500 HD Standard Cab Pickup 6.0 CNG 4WD (2013-09-01 - )

GMC SIERRA 2500 HD Standard Cab Pickup 6.6 D (2017-06-01 - )

GMC SIERRA 2500 HD Standard Cab Pickup 6.6 D 4WD (2017-06-01 - )

GMC SIERRA 2500 HD Standard Cab Pickup 6.0 FLEX (2017-01-01 - )

GMC SIERRA 2500 HD Standard Cab Pickup 6.0 FLEX 4WD (2017-01-01 - )