- 2010 GMC Sierra 1500 VIN 3GTRKXE25AG243398 - from Desert Pontiac Buick GMC by EveryCarListed.com You must see this 2010 GMC Sierra 1500 Denali that we just got into, Desert Pontiac Buick GMC. This Sierra 1500 has a 6.2 liter 8 cylinder 16 valve engine and a 6-Speed Automatic transmission that is ready to haul up to 1566 pounds. We would love to talk to you more about this Sierra 1500. Please contact us for more information.