Dealer

O'connor Buick Gmc

Explore a wide selection of high-quality used and certified pre-owned vehicles at O'connor Buick Gmc – your trusted auto dealership in Augusta, ME.









Dealers
42 cars found
Used 52,121 mi

2023 GMC Sierra 1500 Denali Denali

Augusta, ME
Gasoline
Automatic
AWD
$57,980
or $1,010/mo
Used 19,847 mi

2024 GMC Terrain AT4

Augusta, ME
Gasoline
Automatic
AWD
$33,980
or $592/mo
Used 17,868 mi

2025 GMC Sierra 1500 Elevation

Augusta, ME
Gasoline
Automatic
AWD
$47,980
or $836/mo
Used 40,332 mi

2023 Buick Enclave Avenir

Augusta, ME
Gasoline
Automatic
AWD
$40,980
or $714/mo
Used 30,442 mi

2022 GMC Canyon Elevation

Augusta, ME
Gasoline
Automatic
AWD
$34,980
or $609/mo
Used 37,115 mi

2023 GMC Sierra 1500 AT4

Augusta, ME
Diesel
Automatic
AWD
$52,980
or $923/mo
Used 46,927 mi

2023 GMC Terrain SLT

Augusta, ME
Gasoline
Automatic
AWD
$26,980
or $470/mo
Used 38,212 mi

2022 GMC Terrain Denali

Augusta, ME
Gasoline
Automatic
AWD
$31,980
or $557/mo
Used 23,824 mi

2025 GMC Sierra 2500HD AT4

Augusta, ME
Flex
Automatic
AWD
$67,980
or $1,184/mo
Used 27,128 mi

2022 GMC Sierra 1500 SLT

Augusta, ME
Gasoline
Automatic
AWD
$49,980
or $871/mo
Used 56,127 mi

2023 GMC Sierra 1500 SLT

Augusta, ME
Gasoline
Automatic
AWD
$49,980
or $871/mo
Used 28,485 mi

2023 GMC Sierra 1500 AT4

Augusta, ME
Diesel
Automatic
AWD
$54,980
or $958/mo
Used 31,643 mi

2023 GMC Sierra 1500 Denali Denali

Augusta, ME
Gasoline
Automatic
AWD
$54,980
or $958/mo
Used 20,421 mi

2023 GMC Yukon Denali

Augusta, ME
Gasoline
Automatic
AWD
$67,980
or $1,184/mo
Used 29,909 mi

2024 GMC Sierra 2500HD SLE

Augusta, ME
Flex
Automatic
AWD
$55,980
or $975/mo
Used 16,191 mi

2025 GMC Sierra 1500 Denali

Augusta, ME
Gasoline
Automatic
AWD
$66,980
or $1,167/mo