Hello and may the mercy and blessings of Allah be upon you. . Peace and blessings be upon the Messenger of God. . Available Cadillac Escalade engines Models from 2007 to 2014 . Denali engines from 2007 to 2014 . Compatible with Chevrolet Tahoe models 2007 to 2014 Requires programming to operate . Also fits Chevrolet Suburban 2007 to 2014 . Engines are dismantled from working vehicles and tested before removal. Mileage is around 200,000.