2019 GMC Sierra 1500 SLT Price: $32,954 Pittsburgh, PA 15236 More Pittsburgh, PA GMC Sierra 1500's 2021 $39,999 29,853 Miles 2020 $41,999 48,654 Miles 2021 $37,929 34,992 Miles 2021 $37,972 50,904 Miles 2011 $12,971 Miles 2015 $38,495 63,814 Miles