GMPartsGiant.com offers the wholesale prices for genuine 2004 GMC Yukon XL 1500 4WD parts. Parts like Intake Manifold Shield/Covers are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L. Model Code: 1/2 TON.