- 2009 GMC Sierra VIN 3GTEC23079G133965 - from Gillman Pontiac GMC Buick by EveryCarListed.com This 2009 GMC Sierra 1500 SLE that we have at, Gillman Pontiac GMC Buick is a must see. This Sierra 1500 has a 5.3 liter 8 cylinder 16 valve engine and a Automatic transmission that is ready to haul up to 1573 pounds. We would love to talk to you more about this Sierra 1500. Please contact us for more information.