GMPartsGiant.com offers the wholesale prices for genuine 2012 Cadillac Escalade ESV AWD parts. Parts like Wiring Harness Roof are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 8 Cyl 6.2L Flex. Model Code: YUKON XL/DENALI XL/ESCALADE ESV.